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	diff --git a/src/Git.cpp b/src/Git.cpp
	index 4933e1d..5f90e83 100644
	--- a/src/Git.cpp
	+++ b/src/Git.cpp
	@@ -1,1388 +1,1393 @@
	#include "Git.h"
	#include <QDateTime>
	#include <QDebug>
	#include <QDir>
	#include <QDirIterator>
	#include <QProcess>
	#include <QThread>
	#include <QTimer>
	#include <set>
	#include "common/joinpath.h"
	#include "common/misc.h"
	#include "GitObjectManager.h"

	#include "MyProcess.h"

	#define DEBUGLOG 0

	using callback_t = Git::callback_t;

	struct Git::Private {
	QString git_command;
	std::vector<char> result;
	QString error_message;
	int process_exit_code = 0;
	QString working_repo_dir;
	callback_t callback_func = nullptr;
	void *callback_cookie = nullptr;
	};

	Git::Git()
	: m(new Private)
	{
	}

	Git::Git(const Context &cx, QString const &repodir)
	: m(new Private)
	{
	setGitCommand(cx.git_command);
	setWorkingRepositoryDir(repodir);
	}

	Git::~Git()
	{
	delete m;
	}

	void Git::setLogCallback(callback_t func, void *cookie)
	{
	m->callback_func = func;
	m->callback_cookie = cookie;
	}

	void Git::setWorkingRepositoryDir(QString const &repo)
	{
	m->working_repo_dir = repo;
	}

	QString const &Git::workingRepositoryDir() const
	{
	return m->working_repo_dir;
	}

	bool Git::isValidID(const QString &id)
	{
	int zero = 0;
	int n = id.size();
	if (n > 2 && n <= GIT_ID_LENGTH) {
	ushort const *p = id.utf16();
	for (int i = 0; i < n; i++) {
	uchar c = p[i];
	if (c == '0') {
	zero++;
	} else if ((c >= '0' && c <= '9') \|\| (c >= 'a' && c <= 'f')) {
	// ok
	} else {
	return false;
	}
	}
	if (zero == GIT_ID_LENGTH) { // 全部 0 の時は false を返す
	return false;
	}
	return true; // ok
	}
	return false;
	}

	QByteArray Git::toQByteArray() const
	{
	if (m->result.empty()) return QByteArray();
	return QByteArray(&m->result[0], m->result.size());
	}

	void Git::setGitCommand(QString const &path)
	{
	m->git_command = path;
	}

	QString Git::gitCommand() const
	{
	Q_ASSERT(m);
	return m->git_command;
	}

	void Git::clearResult()
	{
	m->result.clear();
	m->process_exit_code = 0;
	m->error_message = QString();
	}

	QString Git::resultText() const
	{
	return QString::fromUtf8(toQByteArray());
	}

	QString Git::errorMessage() const
	{
	return m->error_message;
	}

	int Git::getProcessExitCode() const
	{
	return m->process_exit_code;
	}

	bool Git::chdirexec(std::function<bool()> fn)
	{
	bool ok = false;
	QDir cwd = QDir::current();
	QString dir = workingRepositoryDir();
	if (isValidWorkingCopy(dir) && QDir::setCurrent(dir)) {

	ok = fn();

	QDir::setCurrent(cwd.path());
	}
	return ok;
	}

	bool Git::git(const QString &arg, bool chdir, bool errout, AbstractPtyProcess *pty)
	{
	QFileInfo info(gitCommand());
	if (!info.isExecutable()) {
	qDebug() << "Invalid git command: " << gitCommand();
	return false;
	}
	#if DEBUGLOG
	qDebug() << "exec: git " << arg;
	QTime timer;
	timer.start();
	#endif
	clearResult();

	auto DoIt = [&](){
	QString cmd = QString("\"%1\" --no-pager ").arg(gitCommand());
	cmd += arg;

	if (m->callback_func) {
	QByteArray ba;
	ba.append("> git ");
	ba.append(arg);
	ba.append('\n');
	m->callback_func(m->callback_cookie, ba.data(), (int)ba.size());
	}

	if (pty) {
	pty->start(cmd);
	m->process_exit_code = 0; // バックグラウンドで実行を継続するけど、とりあえず成功したことにしておく
	} else {
	Process proc;
	proc.start(cmd, false);
	m->process_exit_code = proc.wait();

	if (errout) {
	m->result = proc.errbytes;
	} else {
	m->result = proc.outbytes;
	}
	m->error_message = proc.errstring();
	}

	return m->process_exit_code == 0;
	};

	bool ok = false;

	if (chdir) {
	if (pty) {
	pty->setChangeDir(workingRepositoryDir());
	ok = DoIt();
	} else {
	ok = chdirexec(DoIt);
	}
	} else {
	ok = DoIt();
	}

	#if DEBUGLOG
	qDebug() << timer.elapsed() << "ms";
	#endif

	return ok;
	}

	GitPtr Git::dup() const
	{
	Git *p = new Git();
	p->m->git_command = m->git_command;
	p->m->working_repo_dir = m->working_repo_dir;
	p->m->callback_func = m->callback_func;
	p->m->callback_cookie = m->callback_cookie;
	return GitPtr(p);
	}

	bool Git::isValidWorkingCopy(QString const &dir)
	{
	if (dir.isEmpty()) return false;
	return QDir(dir / ".git").exists();
	}

	bool Git::isValidWorkingCopy() const
	{
	return isValidWorkingCopy(workingRepositoryDir());
	}

	QString Git::version()
	{
	git("--version", false);
	return resultText().trimmed();
	}

	bool Git::init()
	{
	bool ok = false;
	QDir cwd = QDir::current();
	QString dir = workingRepositoryDir();
	if (QDir::setCurrent(dir)) {
	QString gitdir = dir / ".git";
	if (!QFileInfo(gitdir).isDir()) {
	git("init", false);
	if (QFileInfo(gitdir).isDir()) {
	ok = true;
	}
	}
	QDir::setCurrent(cwd.path());
	}
	return ok;
	}

	QString Git::rev_parse(QString const &name)
	{
	QString cmd = "rev-parse %1";
	cmd = cmd.arg(name);
	if (git(cmd)) {
	return resultText().trimmed();
	}
	return QString();
	}

	QStringList Git::refs()
	{
	QStringList lines;
	{
	QString path = workingRepositoryDir() / ".git/packed-refs";
	QFile file(path);
	if (file.open(QFile::ReadOnly)) {
	while (!file.atEnd()) {
	QByteArray ba = file.readLine();
	QString line = QString::fromLatin1(ba).trimmed();
	if (line.indexOf(" refs/") > 0) {
	lines.push_back(line);
	}
	}
	}
	}
	{
	QString refspath = workingRepositoryDir() / ".git/refs/tags";
	QDirIterator it(refspath);
	while (it.hasNext()) {
	it.next();
	QString path = it.filePath();
	if (QFileInfo(path).isFile()) {
	QString name = it.fileName();
	QFile file(path);
	if (file.open(QFile::ReadOnly)) {
	QByteArray ba = file.readAll();
	QString id = QString::fromLatin1(ba).trimmed();
	if (Git::isValidID(id)) {
	QString line = id + " refs/tags/" + name;
	lines.push_back(line);
	}
	}
	}
	}
	}
	return lines;
	}

	QList<Git::Tag> Git::tags()
	{
	auto MidCmp = [](QString const &line, int i, char const *ptr){
	ushort const *p = line.utf16();
	for (int j = 0; ptr[j]; j++) {
	if (p[i + j] != ptr[j]) return false;
	}
	return true;
	};
	QList<Git::Tag> list;
	QStringList lines = refs();
	for (QString const &line : lines) {
	Tag tag;
	if (line.isEmpty()) continue;
	int i = line.indexOf(' ');
	if (i == GIT_ID_LENGTH) {
	tag.id = line.mid(0, i);
	if (MidCmp(line, i, " refs/tags/")) {
	tag.name = line.mid(i + 11).trimmed();
	if (tag.name.isEmpty()) continue;
	list.push_back(tag);
	}
	}
	}
	return list;
	}

	bool Git::tag(const QString &name, const QString &id)
	{
	QString cmd = "tag \"%1\" %2";
	cmd = cmd.arg(name).arg(id);
	return git(cmd);
	}

	void Git::delete_tag(const QString &name, bool remote)
	{
	QString cmd = "tag --delete \"%1\"";
	cmd = cmd.arg(name);
	git(cmd);

	if (remote) {
	QString cmd = "push --delete origin \"%1\"";
	cmd = cmd.arg(name);
	git(cmd);
	}
	}

	QString Git::diff(QString const &old_id, QString const &new_id)
	{
	QString cmd = "diff --full-index -a %1 %2";
	cmd = cmd.arg(old_id).arg(new_id);
	git(cmd);
	return resultText();
	}

	QString Git::diff_file(QString const &old_path, QString const &new_path)
	{
	QString cmd = "diff --full-index -a -- %1 %2";
	cmd = cmd.arg(old_path).arg(new_path);
	git(cmd);
	return resultText();
	}

	QList<Git::DiffRaw> Git::diff_raw(QString const &old_id, QString const &new_id)
	{
	QList<DiffRaw> list;
	QString cmd = "diff --raw --abbrev=%1 %2 %3";
	cmd = cmd.arg(GIT_ID_LENGTH).arg(old_id).arg(new_id);
	git(cmd);
	QString text = resultText();
	QStringList lines = text.split('\n', QString::SkipEmptyParts);
	for (QString const &line : lines) { // raw format: e.g. ":100644 100644 08bc10d... 18f0501... M src/MainWindow.cpp"
	DiffRaw item;
	int colon = line.indexOf(':');
	int tab = line.indexOf('\t');
	if (colon >= 0 && colon < tab) {
	QStringList header = line.mid(colon + 1, tab - colon - 1).split(' ', QString::SkipEmptyParts); // コロンとタブの間の文字列を空白で分割
	if (header.size() >= 5) {
	QStringList files = line.mid(tab + 1).split('\t', QString::SkipEmptyParts); // タブより後ろはファイルパス
	if (files.size() > 0) {
	for (QString &file : files) {
	file = Git::trimPath(file);
	}
	item.a.id = header[2];
	item.b.id = header[3];
	item.a.mode = header[0];
	item.b.mode = header[1];
	item.state = header[4];
	item.files = files;
	list.push_back(item);
	}
	}
	}
	}
	return list;
	}

	QString Git::diff_to_file(QString const &old_id, QString const &path)
	{
	#if 1
	QString cmd = "diff --full-index -a %1 -- \"%2\"";
	cmd = cmd.arg(old_id).arg(path);
	git(cmd);
	return resultText();
	#else
	return diff_(old_id, new_id);
	#endif
	}



	QString Git::getCurrentBranchName()
	{
	if (isValidWorkingCopy()) {
	git("rev-parse --abbrev-ref HEAD");
	QString s = resultText().trimmed();
	if (!s.isEmpty() && !s.startsWith("fatal:") && s.indexOf(' ') < 0) {
	return s;
	}
	}
	return QString();
	}

	QStringList Git::getUntrackedFiles()
	{
	QStringList files;
	Git::FileStatusList stats = status();
	for (FileStatus const &s : stats) {
	if (s.code() == FileStatusCode::Untracked) {
	files.push_back(s.path1());
	}
	}
	return files;
	}




	void Git::parseAheadBehind(QString const &s, Branch *b)
	{
	ushort const *begin = s.utf16();
	ushort const *end = begin + s.size();
	ushort const *ptr = begin;

	auto NCompare = [](ushort const a, char const b, size_t n){
	for (size_t i = 0; i < n; i++) {
	if (a < (unsigned char)b) return false;
	if (a > (unsigned char)b) return false;
	if (!*a) break;
	a++;
	b++;
	}
	return true;
	};

	auto SkipSpace = [&](){
	while (ptr < end && QChar(*ptr).isSpace()) {
	ptr++;
	}
	};

	auto GetNumber = [&](){
	int n = 0;
	while (ptr < end && QChar(*ptr).isDigit()) {
	n = n * 10 + (*ptr - '0');
	ptr++;
	}
	return n;
	};

	if (*ptr == '[') {
	ptr++;
	ushort const *e = nullptr;
	int n;
	for (n = 0; ptr + n < end; n++) {
	if (ptr[n] == ']') {
	e = ptr + n;
	break;
	}
	}
	if (e) {
	end = e;
	while (1) {
	if (NCompare(ptr, "ahead ", 6)) {
	ptr += 6;
	SkipSpace();
	b->ahead = GetNumber();
	} else if (NCompare(ptr, "behind ", 7)) {
	ptr += 7;
	SkipSpace();
	b->behind = GetNumber();
	} else {
	ushort c = 0;
	if (ptr < end) {
	c = *ptr;
	}
	if (c == 0) break;
	ptr++;
	}
	}
	}
	}
	}

	QList<Git::Branch> Git::branches()
	{
	QList<Branch> branches;
	git(QString("branch -vv -a --abbrev=%1").arg(GIT_ID_LENGTH));
	QString s = resultText();
	#if DEBUGLOG
	qDebug() << s;
	#endif

	QStringList lines = misc::splitLines(s);
	for (QString const &line : lines) {
	if (line.size() > 2) {
	QString name;
	QString text = line.mid(2);
	int pos = 0;
	if (text.startsWith('(')) {
	pos = text.indexOf(')');
	if (pos > 1) {
	name = text.mid(1, pos - 1);
	pos++;
	}
	} else {
	while (pos < text.size() && !QChar::isSpace(text.utf16()[pos])) {
	pos++;
	}
	name = text.mid(0, pos);
	}
	if (!name.isEmpty()) {
	while (pos < text.size() && QChar::isSpace(text.utf16()[pos])) {
	pos++;
	}
	text = text.mid(pos);

	Branch b;

	if (name.startsWith("HEAD detached at ")) {
	- b.flags \|= Branch::HeadDetached;
	+ b.flags \|= Branch::HeadDetachedAt;
	name = name.mid(17);
	}

	+ if (name.startsWith("HEAD detached from ")) {
	+ b.flags \|= Branch::HeadDetachedFrom;
	+ name = name.mid(19);
	+ }
	+
	if (name.startsWith("remotes/")) {
	name = name.mid(8);
	int i = name.indexOf('/');
	if (i > 0) {
	b.remote = name.mid(0, i);
	name = name.mid(i + 1);
	}
	}

	b.name = name;

	if (text.startsWith("-> ")) {
	b.id = ">" + text.mid(3);
	} else {
	int i = text.indexOf(' ');
	if (i == GIT_ID_LENGTH) {
	b.id = text.mid(0, GIT_ID_LENGTH);
	}
	while (i < text.size() && QChar::isSpace(text.utf16()[i])) {
	i++;
	}
	text = text.mid(i);
	parseAheadBehind(text, &b);
	}

	if (line.startsWith('*')) {
	b.flags \|= Branch::Current;
	}

	branches.push_back(b);
	}
	}
	}
	for (int i = 0; i < branches.size(); i++) {
	Branch *b = &branches[i];
	if (b->id.startsWith('>')) {
	QString name = b->id.mid(1);
	for (int j = 0; j < branches.size(); j++) {
	if (j != i) {
	if (branches[j].name == name) {
	branches[i].id = branches[j].id;
	break;
	}
	}
	}
	}
	}
	return branches;
	}

	Git::CommitItemList Git::log_all(QString const &id, int maxcount)
	{
	CommitItemList items;
	QString text;

	QString cmd = "log --pretty=format:\"commit:%H#gpg:%G?#key:%GK#parent:%P#author:%an#mail:%ae#date:%ci##%s\" --all -%1 %2";
	cmd = cmd.arg(maxcount).arg(id);
	git(cmd);
	if (getProcessExitCode() == 0) {
	text = resultText().trimmed();
	QStringList lines = misc::splitLines(text);
	for (QString const &line : lines) {
	int i = line.indexOf("##");
	if (i > 0) {
	Git::CommitItem item;
	QString signed_key;
	item.message = line.mid(i + 2);
	QStringList atts = line.mid(0, i).split('#');
	for (QString const &s : atts) {
	int j = s.indexOf(':');
	if (j > 0) {
	QString key = s.mid(0, j);
	QString val = s.mid(j + 1);
	if (key == "commit") {
	item.commit_id = val;
	} else if (key == "gpg") {
	item.signature = *val.utf16();
	} else if (key == "key") {
	signed_key = val;
	} else if (key == "parent") {
	item.parent_ids = val.split(' ', QString::SkipEmptyParts);
	} else if (key == "author") {
	item.author = val;
	} else if (key == "mail") {
	item.email = val;
	} else if (key == "date") {
	item.commit_date = QDateTime::fromString(val, Qt::ISODate).toLocalTime();
	} else if (key == "debug") {
	}
	}
	}
	if (!signed_key.isEmpty()) {
	ushort const *begin = signed_key.utf16();
	int n = signed_key.size();
	for (int i = 0; i + 1 < n; i += 2) {
	ushort c = begin[i];
	ushort d = begin[i + 1];
	if (c < 0x80 && c < 0x80 && isxdigit(c) && isxdigit(d)) {
	char tmp[3];
	tmp[0] = c;
	tmp[1] = d;
	tmp[2] = 0;
	int v = strtol(tmp, nullptr, 16);
	item.fingerprint.push_back(v);
	} else {
	break;
	}
	}
	}
	items.push_back(item);
	}
	}
	}
	return items;
	}

	Git::CommitItemList Git::log(int maxcount)
	{
	return log_all(QString(), maxcount);
	}

	bool Git::queryCommit(QString const &id, CommitItem *out)
	{
	if (objectType(id) == "commit") {
	out->commit_id = id;
	QByteArray ba;
	if (cat_file(id, &ba)) {
	QStringList lines = misc::splitLines(ba, [](char const *p, size_t n){
	return QString::fromUtf8(p, (int)n);
	});
	while (lines.size() > 0 && lines[lines.size() - 1].isEmpty()) {
	lines.pop_back();
	}

	int i;
	for (i = 0; i < lines.size(); i++) {
	QString const &line = lines[i];
	if (line.isEmpty()) {
	i++;
	for (; i < lines.size(); i++) {
	QString const &line = lines[i];
	if (!out->message.isEmpty()) {
	out->message.append('\n');
	}
	out->message.append(line);
	}
	break;
	}
	if (line.startsWith("parent ")) {
	out->parent_ids.push_back(line.mid(7));
	} else if (line.startsWith("author ")) {
	QStringList arr = misc::splitWords(line);
	int n = arr.size();
	if (n > 4) {
	n -= 2;
	out->commit_date = QDateTime::fromTime_t(atol(arr[n].toStdString().c_str()));
	n--;
	out->email = arr[n];
	if (out->email.startsWith('<') && out->email.endsWith('>')) {
	int n = out->email.size();
	out->email = out->email.mid(1, n - 2);
	}
	for (int i = 1; i < n; i++) {
	if (!out->author.isEmpty()) {
	out->author += ' ';
	}
	out->author += arr[i];
	}
	}
	}
	}
	}
	return true;
	}
	return false;
	}

	Git::CloneData Git::preclone(QString const &url, QString const &path)
	{
	CloneData d;
	d.url = url;
	if (path.endsWith('/') \|\| path.endsWith('\\')) {
	auto GitBaseName = [](QString location){
	int i = location.lastIndexOf('/');
	int j = location.lastIndexOf('\\');
	if (i < j) i = j;
	i = i < 0 ? 0 : (i + 1);
	j = location.size();
	if (location.endsWith(".git")) {
	j -= 4;
	}
	if (i < j) {
	location = location.mid(i, j - i);
	}
	return location;
	};
	d.basedir = path;
	d.subdir = GitBaseName(url);
	} else {
	QFileInfo info(path);
	d.basedir = info.dir().path();
	d.subdir = info.fileName();
	}
	return d;
	}

	bool Git::clone(CloneData const &data, AbstractPtyProcess *pty)
	{
	QString clone_to = data.basedir / data.subdir;
	m->working_repo_dir = misc::normalizePathSeparator(clone_to);

	bool ok = false;
	QDir cwd = QDir::current();

	auto DoIt = [&](){
	QString cmd = "clone --progress \"%1\" \"%2\"";
	cmd = cmd.arg(data.url).arg(data.subdir);
	ok = git(cmd, false, true, pty);
	};

	if (pty) {
	pty->setChangeDir(data.basedir);
	DoIt();
	} else {
	if (QDir::setCurrent(data.basedir)) {
	DoIt();
	QDir::setCurrent(cwd.path());
	}
	}

	return ok;
	}

	QString Git::encodeQuotedText(const QString &str)
	{
	std::vector<ushort> vec;
	ushort const *begin = str.utf16();
	ushort const *end = begin + str.size();
	ushort const *ptr = begin;
	vec.push_back('\"');
	while (ptr < end) {
	ushort c = *ptr;
	ptr++;
	if (c == '\"') { // triple quotes
	vec.push_back(c);
	vec.push_back(c);
	vec.push_back(c);
	} else {
	vec.push_back(c);
	}
	}
	vec.push_back('\"');
	return QString::fromUtf16(&vec[0], vec.size());
	}

	bool Git::commit_(QString const &msg, bool amend, bool sign, AbstractPtyProcess *pty)
	{
	QString cmd = "commit";
	if (amend) {
	cmd += " --amend";
	}
	if (sign) {
	cmd += " -S";
	}

	QString text = msg.trimmed();
	if (text.isEmpty()) {
	text = "no message";
	}
	text = encodeQuotedText(text);
	cmd += QString(" -m %1").arg(text);

	return git(cmd, true, false, pty);
	}

	bool Git::commit(QString const &text, bool sign, AbstractPtyProcess *pty)
	{
	return commit_(text, false, sign, pty);
	}

	bool Git::commit_amend_m(const QString &text, bool sign, AbstractPtyProcess *pty)
	{
	return commit_(text, true, sign, pty);
	}

	bool Git::revert(const QString &id)
	{
	QString cmd = "revert %1";
	cmd = cmd.arg(id);
	return git(cmd);
	}

	void Git::push_u(QString const &remote, QString const &branch, AbstractPtyProcess *pty)
	{
	if (remote.indexOf('\"') >= 0 \|\| branch.indexOf('\"') >= 0) {
	return;
	}
	QString cmd = "push -u \"%1\" \"%2\"";
	git(cmd.arg(remote).arg(branch), true, false, pty);
	}

	bool Git::push_(bool tags, AbstractPtyProcess *pty)
	{
	QString cmd = "push";
	if (tags) {
	cmd += " --tags";
	}
	return git(cmd, true, false, pty);
	}

	bool Git::push(bool tags, AbstractPtyProcess *pty)
	{
	return push_(tags, pty);
	}


	Git::FileStatusList Git::status_()
	{
	FileStatusList files;
	if (git("status -s -u --porcelain")) {
	QString text = resultText();
	QStringList lines = misc::splitLines(text);
	for (QString const &line : lines) {
	if (line.size() > 3) {
	FileStatus s(line);
	if (s.code() != FileStatusCode::Unknown) {
	files.push_back(s);
	}
	}
	}
	}
	return files;
	}

	Git::FileStatusList Git::status()
	{
	return status_();
	}

	QString Git::objectType(QString const &id)
	{
	git("cat-file -t " + id);
	return resultText().trimmed();
	}

	QByteArray Git::cat_file_(QString const &id)
	{
	git("cat-file -p " + id);
	return toQByteArray();
	}

	bool Git::cat_file(QString const &id, QByteArray *out)
	{
	if (isValidID(id)) {
	*out = cat_file_(id);
	return true;
	}
	return false;
	}

	void Git::resetFile(const QString &path)
	{
	git("checkout -- " + path);
	}

	void Git::resetAllFiles()
	{
	git("reset --hard HEAD");
	}

	void Git::removeFile(const QString &path)
	{
	git("rm " + path);
	}

	void Git::stage(QString const &path)
	{
	git("add " + path);
	}

	void Git::stage(QStringList const &paths)
	{
	QString cmd = "add";
	for (QString const &path : paths) {
	cmd += ' ';
	cmd += '\"';
	cmd += path;
	cmd += '\"';
	}
	git(cmd);
	}

	void Git::unstage(QString const &path)
	{
	QString cmd = "reset HEAD \"%1\"";
	git(cmd.arg(path));
	}

	void Git::unstage(QStringList const &paths)
	{
	QString cmd = "reset HEAD";
	for (QString const &path : paths) {
	cmd += " \"";
	cmd += path;
	cmd += '\"';
	}
	git(cmd);
	}

	void Git::pull(AbstractPtyProcess *pty)
	{
	git("pull", true, false, pty);
	}

	void Git::fetch(AbstractPtyProcess *pty)
	{
	git("fetch", true, false, pty);
	}

	QStringList Git::make_branch_list_()
	{
	QStringList list;
	QStringList l = misc::splitLines(resultText());
	for (QString const &s : l) {
	if (s.startsWith("* ")) list.push_back(s.mid(2));
	if (s.startsWith(" ")) list.push_back(s.mid(2));
	}
	return list;
	}

	void Git::createBranch(QString const &name)
	{
	git("branch " + name);
	}

	void Git::checkoutBranch(QString const &name)
	{
	git("checkout " + name);
	}

	void Git::cherrypick(QString const &name)
	{
	git("cherry-pick " + name);
	}

	void Git::mergeBranch(QString const &name)
	{
	git("merge " + name);
	}

	QStringList Git::getRemotes()
	{
	QStringList ret;
	git("remote");
	QStringList lines = misc::splitLines(resultText());
	for (QString const &line: lines) {
	if (!line.isEmpty()) {
	ret.push_back(line);
	}
	}
	return ret;
	}

	Git::User Git::getUser(Source purpose)
	{
	User user;
	bool global = purpose == Git::Source::Global;
	bool local = purpose == Git::Source::Local;
	QString arg1;
	if (global) arg1 = "--global";
	if (local) arg1 = "--local";
	bool chdir = !global;
	if (git(QString("config %1 user.name").arg(arg1), chdir)) {
	user.name = resultText().trimmed();
	}
	if (git(QString("config %1 user.email").arg(arg1), chdir)) {
	user.email = resultText().trimmed();
	}
	return user;
	}

	void Git::setUser(const User &user, bool global)
	{
	bool chdir = !global;
	git(QString("config %1 user.name %2").arg(global ? "--global" : "").arg(encodeQuotedText(user.name)), chdir);
	git(QString("config %1 user.email %2").arg(global ? "--global" : "").arg(encodeQuotedText(user.email)), chdir);
	}

	bool Git::reset_head1()
	{
	return git("reset HEAD~1");
	}

	bool Git::rm_cached(QString const &file)
	{
	QString cmd = "rm --cached \"%1\"";
	return git(cmd.arg(file));
	}

	void Git::getRemoteURLs(QList<Remote> *out)
	{
	out->clear();
	git("remote -v");
	QStringList lines = misc::splitLines(resultText());
	for (QString const &line : lines) {
	int i = line.indexOf('\t');
	int j = line.indexOf(" (");
	if (i > 0 && i < j) {
	Remote r;
	r.name = line.mid(0, i);
	r.url = line.mid(i + 1, j - i - 1);
	r.purpose = line.mid(j + 1);
	if (r.purpose.startsWith('(') && r.purpose.endsWith(')')) {
	r.purpose = r.purpose.mid(1, r.purpose.size() - 2);
	}
	out->push_back(r);
	}
	}
	}

	void Git::setRemoteURL(QString const &name, QString const &url)
	{
	QString cmd = "remote set-url %1 %2";
	cmd = cmd.arg(encodeQuotedText(name)).arg(encodeQuotedText(url));
	git(cmd);
	}

	void Git::addRemoteURL(QString const &name, QString const &url)
	{
	QString cmd = "remote add \"%1\" \"%2\"";
	cmd = cmd.arg(encodeQuotedText(name)).arg(encodeQuotedText(url));
	git(cmd);
	}

	void Git::removeRemote(QString const &name)
	{
	QString cmd = "remote remove %1";
	cmd = cmd.arg(encodeQuotedText(name));
	git(cmd);
	}

	bool Git::reflog(ReflogItemList *out, int maxcount)
	{
	out->clear();
	QString cmd = "reflog --no-abbrev --raw -n %1";
	cmd = cmd.arg(maxcount);
	if (!git(cmd)) return false;
	QByteArray ba = toQByteArray();
	if (!ba.isEmpty()) {
	ReflogItem item;
	char const *begin = ba.data();
	char const *end = begin + ba.size();
	char const *left = begin;
	char const *ptr = begin;
	while (1) {
	int c = 0;
	if (ptr < end) {
	c = *ptr;
	}
	if (c == '\r' \|\| c == '\n' \|\| c == 0) {
	int d = 0;
	QString line = QString::fromUtf8(left, ptr - left);
	if (left < ptr) {
	d = *left & 0xff;
	}
	if (d == ':') {
	// ex. ":100644 100644 bb603836fb597cca994309a1f0a52251d6b20314 d6b9798854debee375bb419f0f2ed9c8437f1932 M\tsrc/MainWindow.cpp"
	int tab = line.indexOf('\t');
	if (tab > 1) {
	QString tmp = line.mid(1, tab - 1);
	QString path = line.mid(tab + 1);
	QStringList cols = misc::splitWords(tmp);
	if (!path.isEmpty() && cols.size() == 5) {
	ReflogItem::File file;
	file.atts_a = cols[0];
	file.atts_b = cols[1];
	file.id_a = cols[2];
	file.id_b = cols[3];
	file.type = cols[4];
	file.path = path;
	item.files.push_back(file);
	}
	}
	} else {
	bool start = isxdigit(d);
	if (start \|\| c == 0) {
	if (!item.id.isEmpty()) {
	out->push_back(item);
	}
	}
	if (start) {
	// ex. "0a2a8b6b66f48bcbf985d8a2afcd14ff41676c16 HEAD@{188}: commit: comment text"
	item = ReflogItem();
	int i = line.indexOf(": ");
	if (i > 0) {
	int j = line.indexOf(": ", i + 2);
	if (j > 2) {
	item.head = line.mid(0, i);
	item.command = line.mid(i + 2, j - i - 2);
	item.comment= line.mid(j + 2);
	if (item.head.size() > GIT_ID_LENGTH) {
	item.id = item.head.mid(0, GIT_ID_LENGTH);
	item.head = item.head.mid(GIT_ID_LENGTH + 1);
	}
	}
	}
	}
	}
	if (c == 0) break;
	ptr++;
	left = ptr;
	} else {
	ptr++;
	}
	}
	}
	return true;
	}

	// Git::FileStatus

	QString Git::trimPath(QString const &s)
	{
	ushort const *begin = s.utf16();
	ushort const *end = begin + s.size();
	ushort const *left = begin;
	ushort const *right = end;
	while (left < right && QChar(*left).isSpace()) left++;
	while (left < right && QChar(right[-1]).isSpace()) right--;
	if (left + 1 < right && *left == '\"' && right[-1] == '\"') { // if quoted ?
	left++;
	right--;
	QByteArray ba;
	ushort const *ptr = left;
	while (ptr < right) {
	ushort c = *ptr;
	ptr++;
	if (c == '\\') {
	c = 0;
	while (ptr < right && QChar(*ptr).isDigit()) { // decode \oct
	c = c * 8 + (*ptr - '0');
	ptr++;
	}
	}
	ba.push_back(c);
	}
	return QString::fromUtf8(ba);
	}
	if (left == begin && right == end) return s;
	return QString::fromUtf16(left, right - left);
	}

	Git::FileStatusCode Git::FileStatus::parseFileStatusCode(char x, char y)
	{
	if (x == ' ' && (y == 'M' \|\| y == 'D')) return FileStatusCode::NotUpdated;
	if (x == 'M' && (y == 'M' \|\| y == 'D' \|\| y == ' ')) return FileStatusCode::UpdatedInIndex;
	if (x == 'A' && (y == 'M' \|\| y == 'D' \|\| y == ' ')) return FileStatusCode::AddedToIndex;
	if (x == 'D' && (y == 'M' \|\| y == ' ')) return FileStatusCode::DeletedFromIndex;
	if (x == 'R' && (y == 'M' \|\| y == 'D' \|\| y == ' ')) return FileStatusCode::RenamedInIndex;
	if (x == 'C' && (y == 'M' \|\| y == 'D' \|\| y == ' ')) return FileStatusCode::CopiedInIndex;
	if (x == 'C' && (y == 'M' \|\| y == 'D' \|\| y == ' ')) return FileStatusCode::CopiedInIndex;
	if (x == 'D' && y == 'D') return FileStatusCode::Unmerged_BothDeleted;
	if (x == 'A' && y == 'U') return FileStatusCode::Unmerged_AddedByUs;
	if (x == 'U' && y == 'D') return FileStatusCode::Unmerged_DeletedByThem;
	if (x == 'U' && y == 'A') return FileStatusCode::Unmerged_AddedByThem;
	if (x == 'D' && y == 'U') return FileStatusCode::Unmerged_DeletedByUs;
	if (x == 'A' && y == 'A') return FileStatusCode::Unmerged_BothAdded;
	if (x == 'U' && y == 'U') return FileStatusCode::Unmerged_BothModified;
	if (x == '?' && y == '?') return FileStatusCode::Untracked;
	if (x == '!' && y == '!') return FileStatusCode::Ignored;
	return FileStatusCode::Unknown;
	}

	void Git::FileStatus::parse(const QString &text)
	{
	data = Data();
	if (text.size() > 3) {
	ushort const *p = text.utf16();
	if (p[2] == ' ') {
	data.code_x = p[0];
	data.code_y = p[1];

	int i = text.indexOf(" -> ", 3);
	if (i > 3) {
	data.rawpath1 = text.mid(3, i - 3);
	data.rawpath2 = text.mid(i + 4);
	data.path1 = trimPath(data.rawpath1);
	data.path2 = trimPath(data.rawpath2);
	} else {
	data.rawpath1 = text.mid(3);
	data.path1 = trimPath(data.rawpath1);
	data.path2 = QString();
	}

	data.code = parseFileStatusCode(data.code_x, data.code_y);
	}
	}
	}

	QByteArray Git::blame(QString const &path)
	{
	QString cmd = "blame --abbrev=40 \"%1\"";
	cmd = cmd.arg(path);
	if (git(cmd)) {
	return toQByteArray();
	}
	return QByteArray();
	}

	QString Git::signingKey(Source purpose)
	{
	QString arg1;
	if (purpose == Source::Global) arg1 = "--global";
	if (purpose == Source::Local) arg1 = "--local";
	QString cmd = "config %1 user.signingkey";
	cmd = cmd.arg(arg1);
	bool chdir = purpose != Source::Global;
	if (git(cmd, chdir)) {
	return resultText().trimmed();
	}
	return QString();
	}

	bool Git::setSigningKey(QString const &id, bool global)
	{
	for (int i = 0; i < id.size(); i++) {
	if (!QChar(id[i]).isLetterOrNumber()) return false;
	}

	QString cmd = "config %1 %2 user.signingkey %3";
	cmd = cmd.arg(global ? "--global" : "--local").arg(id.isEmpty() ? "--unset" : "").arg(id);
	return git(cmd, !global);
	}

	Git::SignPolicy Git::signPolicy(Source source)
	{
	QString arg1;
	if (source == Source::Global) arg1 = "--global";
	if (source == Source::Local) arg1 = "--local";
	QString cmd = "config %1 commit.gpgsign";
	cmd = cmd.arg(arg1);
	bool chdir = source != Source::Global;
	if (git(cmd, chdir)) {
	QString t = resultText().trimmed();
	if (t == "false") return SignPolicy::False;
	if (t == "true") return SignPolicy::True;
	}
	return SignPolicy::Unset;
	}

	bool Git::setSignPolicy(Source source, SignPolicy policy)
	{
	QString arg1;
	if (source == Source::Global) arg1 = "--global";
	if (source == Source::Local) arg1 = "--local";
	QString cmd = "config %1 %2 commit.gpgsign %3";
	QString arg2;
	QString arg3;
	if (policy == SignPolicy::False) {
	arg3 = "false";
	} else if (policy == SignPolicy::True) {
	arg3 = "true";
	} else {
	arg2 = "--unset";
	}
	cmd = cmd.arg(arg1).arg(arg2).arg(arg3);
	bool chdir = source != Source::Global;
	return git(cmd, chdir);
	}

	bool Git::configGpgProgram(QString const &path, bool global)
	{
	QString cmd = "config ";
	if (global) {
	cmd += "--global ";
	}
	if (path.isEmpty()) {
	cmd += "--unset ";
	}
	cmd += "gpg.program ";
	if (!path.isEmpty()) {
	cmd += QString("\"%1\"").arg(path);
	}
	return git(cmd, false);
	}

	// Diff

	void Git::Diff::makeForSingleFile(Git::Diff *diff, const QString &id_a, const QString &id_b, const QString &path, QString const &mode)
	{
	diff->diff = QString("diff --git a/%1 b/%2").arg(path).arg(path);
	diff->index = QString("index %1..%2 %3").arg(id_a).arg(id_b).arg(0);
	diff->blob.a_id = id_a;
	diff->blob.b_id = id_b;
	diff->path = path;
	diff->mode = mode;
	diff->type = Git::Diff::Type::Create;
	}

	//

	void parseDiff(std::string const &s, Git::Diff const info, Git::Diff out)
	{
	std::vector<std::string> lines;
	{
	char const *begin = s.c_str();
	char const *end = begin + s.size();
	misc::splitLines(begin, end, &lines, false);
	}


	out->diff = QString("diff --git ") + ("a/" + info->path) + ' ' + ("b/" + info->path);
	out->index = QString("index ") + info->blob.a_id + ".." + info->blob.b_id + ' ' + info->mode;
	out->path = info->path;
	out->blob = info->blob;

	bool atat = false;
	for (std::string const &line : lines) {
	int c = line[0] & 0xff;
	if (c == '@') {
	if (strncmp(line.c_str(), "@@ ", 3) == 0) {
	out->hunks.push_back(Git::Hunk());
	out->hunks.back().at = line;
	atat = true;
	}
	} else {
	if (atat && c == '\\') { // e.g. \ No newline at end of file...
	// ignore this line
	} else {
	if (atat) {
	if (c == ' ' \|\| c == '-' \|\| c == '+') {
	// nop
	} else {
	atat = false;
	}
	}
	if (atat) {
	if (!out->hunks.isEmpty()) {
	out->hunks.back().lines.push_back(line);
	}
	}
	}
	}
	}
	}

	diff --git a/src/Git.h b/src/Git.h
	index 98e261e..5ed47e7 100644
	--- a/src/Git.h
	+++ b/src/Git.h
	@@ -1,476 +1,477 @@
	#ifndef GIT_H
	#define GIT_H

	#include "AbstractProcess.h"

	#include <QDateTime>
	#include <QObject>
	#include <functional>

	#include <QDebug>
	#include <QMutex>
	#include <memory>

	#define SINGLE_THREAD 0

	#define GIT_ID_LENGTH (40)

	class Win32PtyProcess;

	enum class LineSide {
	Left,
	Right,
	};

	struct TreeLine {
	int index;
	int depth;
	int color_number = 0;
	bool bend_early = false;
	TreeLine(int index = -1, int depth = -1)
	: index(index)
	, depth(depth)
	{
	}
	};

	struct NamedCommitItem {
	enum class Type {
	None,
	Branch,
	Tag,
	};
	Type type = Type::None;
	QString remote;
	QString name;
	QString id;
	};
	typedef QList<NamedCommitItem> NamedCommitList;


	class Git;
	typedef std::shared_ptr<Git> GitPtr;

	class Git : QObject {
	public:
	class Context {
	public:
	QString git_command;
	};

	struct Object {
	enum class Type {
	UNKNOWN = 0,
	COMMIT = 1,
	TREE = 2,
	BLOB = 3,
	TAG = 4,
	UNDEFINED = 5,
	OFS_DELTA = 6,
	REF_DELTA = 7,
	};
	Type type = Type::UNKNOWN;
	QByteArray content;
	};

	class Hunk {
	public:
	std::string at;
	std::vector<std::string> lines;
	};
	class Diff {
	public:
	enum class Type {
	Unknown,
	Modify,
	Copy,
	Rename,
	Create,
	Delete,
	ChType,
	Unmerged,
	};
	Type type = Type::Unknown;
	QString diff;
	QString index;
	QString path;
	QString mode;
	struct BLOB_AB_ {
	QString a_id;
	QString b_id;
	} blob;
	QList<Hunk> hunks;
	Diff()
	{
	}
	Diff(const QString &id, const QString &path, const QString &mode)
	{
	makeForSingleFile(this, QString(GIT_ID_LENGTH, '0'), id, path, mode);

	}
	private:
	void makeForSingleFile(Git::Diff *diff, const QString &id_a, const QString &id_b, const QString &path, const QString &mode);
	};

	enum class SignatureGrade {
	NoSignature,
	Unknown,
	Good,
	Dubious,
	Missing,
	Bad,
	};

	static SignatureGrade evaluateSignature(char s)
	{
	switch (s) {
	case 'G':
	return SignatureGrade::Good;
	case 'U':
	case 'X':
	case 'Y':
	return SignatureGrade::Dubious;
	case 'B':
	case 'R':
	return SignatureGrade::Bad;
	case 'E':
	return SignatureGrade::Missing;
	case 'N':
	case ' ':
	case 0:
	return SignatureGrade::NoSignature;
	}
	return SignatureGrade::Unknown;
	}

	struct CommitItem {
	QString commit_id;
	QStringList parent_ids;
	QString author;
	QString email;
	QString message;
	QDateTime commit_date;
	std::vector<TreeLine> parent_lines;
	QByteArray fingerprint;
	char signature = 0; // git log format:%G?
	bool has_child = false;
	int marker_depth = -1;
	bool resolved = false;

	};
	typedef std::vector<CommitItem> CommitItemList;

	static bool isUncommited(CommitItem const &item)
	{
	return item.commit_id.isEmpty();
	}

	struct Branch {
	QString name;
	QString id;
	QString remote;
	int ahead = 0;
	int behind = 0;
	enum {
	None,
	Current = 0x0001,
	- HeadDetached = 0x0002,
	+ HeadDetachedAt = 0x0002,
	+ HeadDetachedFrom = 0x0004,
	};
	int flags = 0;
	operator bool () const
	{
	if (name.isEmpty()) return false;
	if (id.isEmpty()) return false;
	return true;
	}
	bool isCurrent() const
	{
	return flags & Current;
	}
	bool isHeadDetached() const
	{
	- return flags & HeadDetached;
	+ return flags & HeadDetachedAt;
	}
	};

	struct Tag {
	QString name;
	QString id;
	};

	enum class FileStatusCode : unsigned int {
	Unknown,
	Ignored,
	Untracked,
	NotUpdated = 0x10000000,
	Staged_ = 0x20000000,
	UpdatedInIndex,
	AddedToIndex,
	DeletedFromIndex,
	RenamedInIndex,
	CopiedInIndex,
	Unmerged_ = 0x40000000,
	Unmerged_BothDeleted,
	Unmerged_AddedByUs,
	Unmerged_DeletedByThem,
	Unmerged_AddedByThem,
	Unmerged_DeletedByUs,
	Unmerged_BothAdded,
	Unmerged_BothModified,
	Tracked_ = 0xf0000000
	};

	class FileStatus {
	public:
	struct Data {
	char code_x = 0;
	char code_y = 0;
	FileStatusCode code = FileStatusCode::Unknown;
	QString rawpath1;
	QString rawpath2;
	QString path1;
	QString path2;
	} data;

	static FileStatusCode parseFileStatusCode(char x, char y);

	bool isStaged() const
	{
	return (int)data.code & (int)FileStatusCode::Staged_;
	}

	bool isUnmerged() const
	{
	return (int)data.code & (int)FileStatusCode::Unmerged_;
	}

	bool isTracked() const
	{
	return (int)data.code & (int)FileStatusCode::Tracked_;
	}

	void parse(QString const &text);

	FileStatus()
	{
	}

	FileStatus(QString const &text)
	{
	parse(text);
	}

	FileStatusCode code() const
	{
	return data.code;
	}

	int code_x() const
	{
	return data.code_x;
	}

	int code_y() const
	{
	return data.code_y;
	}

	bool isDeleted() const
	{
	return code_x() == 'D' \|\| code_y() == 'D';
	}

	QString path1() const
	{
	return data.path1;
	}

	QString path2() const
	{
	return data.path2;
	}

	QString rawpath1() const
	{
	return data.rawpath1;
	}

	QString rawpath2() const
	{
	return data.rawpath2;
	}
	};
	typedef std::vector<FileStatus> FileStatusList;

	static QString trimPath(const QString &s);

	private:
	struct Private;
	Private *m;
	QStringList make_branch_list_();
	QByteArray cat_file_(const QString &id);
	FileStatusList status_();
	bool commit_(const QString &msg, bool amend, bool sign, AbstractPtyProcess *pty);
	bool push_(bool tags, AbstractPtyProcess *pty);
	static void parseAheadBehind(const QString &s, Branch *b);
	Git();
	QString encodeQuotedText(const QString &str);
	QStringList refs();
	public:
	Git(Context const &cx, const QString &repodir);
	Git(Git &&r) = delete;
	virtual ~Git();

	typedef bool (callback_t)(void cookie, char const *ptr, int len);

	void setLogCallback(callback_t func, void *cookie);

	QByteArray toQByteArray() const;
	void setGitCommand(const QString &path);
	QString gitCommand() const;
	void clearResult();
	QString resultText() const;
	bool chdirexec(std::function<bool ()> fn);
	bool git(QString const &arg, bool chdir, bool errout = false, AbstractPtyProcess *pty = nullptr);
	bool git(QString const &arg)
	{
	return git(arg, true);
	}

	void setWorkingRepositoryDir(const QString &repo);
	const QString &workingRepositoryDir() const;

	QString getCurrentBranchName();
	bool isValidWorkingCopy() const;
	QString version();
	bool init();
	QStringList getUntrackedFiles();
	CommitItemList log_all(const QString &id, int maxcount);
	CommitItemList log(int maxcount);
	bool queryCommit(const QString &id, CommitItem *out);

	struct CloneData {
	QString url;
	QString basedir;
	QString subdir;
	};
	static CloneData preclone(QString const &url, QString const &path);
	bool clone(CloneData const &data, AbstractPtyProcess *pty);

	FileStatusList status();
	bool cat_file(const QString &id, QByteArray *out);
	void resetFile(const QString &path);
	void resetAllFiles();

	void removeFile(const QString &path);

	void stage(const QString &path);
	void stage(const QStringList &paths);
	void unstage(const QString &path);
	void unstage(const QStringList &paths);
	void pull(AbstractPtyProcess *pty = 0);

	void fetch(AbstractPtyProcess *pty = 0);

	QList<Branch> branches();

	int getProcessExitCode() const;

	QString diff(QString const &old_id, QString const &new_id);
	QString diff_file(const QString &old_path, const QString &new_path);

	struct DiffRaw {
	struct AB {
	QString id;
	QString mode;
	} a, b;
	QString state;
	QStringList files;
	};

	struct Remote {
	QString name;
	QString url;
	QString purpose;
	};

	QList<DiffRaw> diff_raw(const QString &old_id, const QString &new_id);

	static bool isValidID(QString const &s);

	bool commit(const QString &text, bool sign, AbstractPtyProcess *pty);
	bool commit_amend_m(const QString &text, bool sign, AbstractPtyProcess *pty);
	bool revert(const QString &id);
	bool push(bool tags, AbstractPtyProcess *pty = 0);
	void getRemoteURLs(QList<Remote> *out);
	void createBranch(const QString &name);
	void checkoutBranch(const QString &name);
	void mergeBranch(const QString &name);
	static bool isValidWorkingCopy(const QString &dir);
	QString diff_to_file(const QString &old_id, const QString &path);
	QString errorMessage() const;

	GitPtr dup() const;
	QString rev_parse(const QString &name);
	QList<Tag> tags();
	bool tag(const QString &name, QString const &id = QString());
	void delete_tag(const QString &name, bool remote);
	void setRemoteURL(const QString &name, const QString &url);
	void addRemoteURL(QString const &name, QString const &url);
	void removeRemote(QString const &name);
	QStringList getRemotes();

	struct User {
	QString name;
	QString email;
	};
	enum class Source {
	Default,
	Global,
	Local,
	};

	User getUser(Source purpose);
	void setUser(User const&user, bool global);

	bool reset_head1();
	void push_u(const QString &remote, const QString &branch, AbstractPtyProcess *pty);
	QString objectType(const QString &id);
	bool rm_cached(const QString &file);
	void cherrypick(const QString &name);

	struct ReflogItem {
	QString id;
	QString head;
	QString command;
	QString comment;
	struct File {
	QString atts_a;
	QString atts_b;
	QString id_a;
	QString id_b;
	QString type;
	QString path;
	};
	QList<File> files;
	};
	typedef QList<ReflogItem> ReflogItemList;

	bool reflog(ReflogItemList *out, int maxcount = 100);
	QByteArray blame(const QString &path);

	enum SignPolicy {
	Unset,
	False,
	True,
	};
	QString signingKey(Source purpose);
	bool setSigningKey(const QString &id, bool global);
	SignPolicy signPolicy(Source source);
	bool setSignPolicy(Source source, SignPolicy policy);
	bool configGpgProgram(const QString &path, bool global);
	};

	void parseDiff(std::string const &s, Git::Diff const info, Git::Diff out);

	#endif // GIT_H
	diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
	index 5e0aa61..64090cb 100644
	--- a/src/MainWindow.cpp
	+++ b/src/MainWindow.cpp
	@@ -1,4560 +1,4567 @@
	#include "AreYouSureYouWantToContinueConnectingDialog.h"
	#include "BlameWindow.h"
	#include "CommitViewWindow.h"
	#include "Git.h"
	#include "LineEditDialog.h"
	#include "MainWindow.h"
	#include "ReflogWindow.h"
	#include "SetGlobalUserDialog.h"
	#include "EditTagsDialog.h"
	#include "WelcomeWizardDialog.h"
	#include "ui_MainWindow.h"
	#include "EditGitIgnoreDialog.h"

	#ifdef Q_OS_WIN
	#include "win32/win32.h"
	#else
	#include <unistd.h>
	#endif

	#include "ApplicationGlobal.h"
	#include "AboutDialog.h"
	#include "AvatarLoader.h"
	#include "CheckoutDialog.h"
	#include "CloneDialog.h"
	#include "CommitExploreWindow.h"
	#include "CommitPropertyDialog.h"
	#include "common/joinpath.h"
	#include "common/misc.h"
	#include "ConfigCredentialHelperDialog.h"
	#include "CreateRepositoryDialog.h"
	#include "DeleteBranchDialog.h"
	#include "DeleteTagsDialog.h"
	#include "InputNewTagDialog.h"
	#include "FileHistoryWindow.h"
	#include "FilePropertyDialog.h"
	#include "FileUtil.h"
	#include "Git.h"
	#include "GitDiff.h"
	#include "gunzip.h"
	#include "JumpDialog.h"
	#include "LocalSocketReader.h"
	#include "main.h"
	#include "MemoryReader.h"
	#include "MergeBranchDialog.h"
	#include "MyProcess.h"
	#include "MySettings.h"
	#include "PushDialog.h"
	#include "RepositoryData.h"
	#include "RepositoryPropertyDialog.h"
	#include "SelectCommandDialog.h"
	#include "SetRemoteUrlDialog.h"
	#include "SettingsDialog.h"
	#include "SetUserDialog.h"
	#include "StatusLabel.h"
	#include "Terminal.h"
	#include "TextEditDialog.h"
	#include "CommitDialog.h"
	#include "SelectGpgKeyDialog.h"
	#include "SetGpgSigningDialog.h"
	#include "gpg.h"
	#include "webclient.h"
	#include <deque>
	#include <set>
	#include <stdlib.h>

	#include <QBuffer>
	#include <QClipboard>
	#include <QDateTime>
	#include <QDebug>
	#include <QDesktopServices>
	#include <QDirIterator>
	#include <QDragEnterEvent>
	#include <QFileDialog>
	#include <QFileIconProvider>
	#include <QKeyEvent>
	#include <QLocalServer>
	#include <QMessageBox>
	#include <QMimeData>
	#include <QPainter>
	#include <QProcess>
	#include <QStandardPaths>
	#include <QThread>
	#include <QTimer>

	#ifdef Q_OS_MAC
	extern "C" char **environ;
	#endif

	struct GitHubRepositoryInfo {
	QString owner_account_name;
	QString repository_name;
	};

	class AsyncExecGitThread_ : public QThread {
	private:
	GitPtr g;
	std::function<void(GitPtr g)> callback;
	public:
	AsyncExecGitThread_(GitPtr g, std::function<void(GitPtr g)> callback)
	: g(g)
	, callback(callback)
	{
	}
	protected:
	void run()
	{
	callback(g);
	}
	};

	FileDiffWidget::DrawData::DrawData()
	{
	bgcolor_text = QColor(255, 255, 255);
	bgcolor_gray = QColor(224, 224, 224);
	bgcolor_add = QColor(192, 240, 192);
	bgcolor_del = QColor(255, 224, 224);
	bgcolor_add_dark = QColor(64, 192, 64);
	bgcolor_del_dark = QColor(240, 64, 64);
	}

	enum {
	IndexRole = Qt::UserRole,
	FilePathRole,
	DiffIndexRole,
	HunkIndexRole,
	};

	enum {
	GroupItem = -1,
	};

	static inline bool isGroupItem(QTreeWidgetItem *item)
	{
	if (item) {
	int index = item->data(0, IndexRole).toInt();
	if (index == GroupItem) {
	return true;
	}
	}
	return false;
	}

	static inline QString getFilePath(QListWidgetItem *item)
	{
	if (!item) return QString();
	return item->data(FilePathRole).toString();
	}

	static inline int indexOfLog(QListWidgetItem *item)
	{
	if (!item) return -1;
	return item->data(IndexRole).toInt();
	}

	static inline int indexOfDiff(QListWidgetItem *item)
	{
	if (!item) return -1;
	return item->data(DiffIndexRole).toInt();
	}

	static inline int getHunkIndex(QListWidgetItem *item)
	{
	if (!item) return -1;
	return item->data(HunkIndexRole).toInt();
	}

	enum class PtyCondition {
	None,
	Clone,
	Fetch,
	Pull,
	Push,
	};

	enum InteractionMode {
	None,
	Busy,
	};

	struct MainWindow::Private {
	QString starting_dir;
	Git::Context gcx;
	ApplicationSettings appsettings;
	QList<RepositoryItem> repos;
	RepositoryItem current_repo;
	ServerType server_type = ServerType::Standard;
	GitHubRepositoryInfo github;
	Git::Branch current_branch;
	QString head_id;
	struct Diff {
	QList<Git::Diff> result;
	std::shared_ptr<QThread> thread;
	QList<std::shared_ptr<QThread>> garbage;
	} diff;
	std::map<QString, Git::Diff> diff_cache;
	QStringList added;
	Git::CommitItemList logs;
	std::map<int, QList<Label>> label_map;
	bool uncommited_changes = false;
	int update_files_list_counter = 0;
	QTimer interval_10ms_timer;
	QImage graph_color;
	QStringList remotes;
	std::map<QString, QList<Git::Branch>> branch_map;
	std::map<QString, QList<Git::Tag>> tag_map;
	QString repository_filter_text;
	QPixmap digits;
	QIcon repository_icon;
	QIcon folder_icon;
	QIcon signature_good_icon;
	QIcon signature_dubious_icon;
	QIcon signature_bad_icon;
	unsigned int temp_file_counter = 0;
	GitObjectCache objcache;
	QPixmap transparent_pixmap;
	StatusLabel *status_bar_label;

	WebContext webcx;
	AvatarLoader avatar_loader;
	int update_commit_table_counter = 0;

	std::map<QString, GitHubAPI::User> committer_map; // key is email

	PtyProcess pty_process;
	PtyCondition pty_condition = PtyCondition::None;
	bool pty_process_ok = false;

	RepositoryItem temp_repo;

	QListWidgetItem *last_selected_file_item = nullptr;


	InteractionMode interaction_mode = InteractionMode::None;
	bool interaction_canceled = false;
	};

	MainWindow::MainWindow(QWidget *parent)
	: QMainWindow(parent)
	, ui(new Ui::MainWindow)
	, m(new Private)
	{
	ui->setupUi(this);

	#ifdef Q_OS_MACX
	ui->action_about->setText("About Guitar...");
	ui->action_edit_settings->setText("Settings...");
	#endif

	m->starting_dir = QDir::current().absolutePath();

	ui->splitter_v->setSizes({100, 400});
	ui->splitter_h->setSizes({200, 100, 200});

	m->status_bar_label = new StatusLabel(this);
	ui->statusBar->addWidget(m->status_bar_label);

	ui->widget_diff_view->bind(this);

	qApp->installEventFilter(this);
	ui->treeWidget_repos->installEventFilter(this);
	ui->tableWidget_log->installEventFilter(this);
	ui->listWidget_staged->installEventFilter(this);
	ui->listWidget_unstaged->installEventFilter(this);

	ui->widget_log->setupForLogWidget(ui->verticalScrollBar_log, ui->horizontalScrollBar_log, themeForTextEditor());
	onLogVisibilityChanged();

	SettingsDialog::loadSettings(&m->appsettings);

	initNetworking();

	showFileList(FilesListType::SingleList);

	QFileIconProvider icons;

	m->digits.load(":/image/digits.png");
	m->graph_color = global->theme->graphColorMap();

	m->repository_icon = QIcon(":/image/repository.png");
	m->folder_icon = icons.icon(QFileIconProvider::Folder);

	m->signature_good_icon = QIcon(":/image/signature-good.png");
	m->signature_bad_icon = QIcon(":/image/signature-bad.png");
	m->signature_dubious_icon = QIcon(":/image/signature-dubious.png");

	prepareLogTableWidget();

	#ifdef Q_OS_WIN
	{
	QFont font;

	font = ui->label_repo_name->font();
	font.setFamily("Meiryo");
	ui->label_repo_name->setFont(font);

	font = ui->label_branch_name->font();
	font.setFamily("Meiryo");
	ui->label_branch_name->setFont(font);
	}
	#endif

	connect(ui->dockWidget_log, SIGNAL(visibilityChanged(bool)), this, SLOT(onLogVisibilityChanged()));
	connect(ui->widget_log, SIGNAL(idle()), this, SLOT(onLogIdle()));

	connect(ui->treeWidget_repos, SIGNAL(dropped()), this, SLOT(onRepositoriesTreeDropped()));

	connect((AbstractPtyProcess *)&m->pty_process, SIGNAL(completed()), this, SLOT(onPtyProcessCompleted()));


	QString path = getBookmarksFilePath();
	m->repos = RepositoryBookmark::load(path);
	updateRepositoriesList();

	m->webcx.set_keep_alive_enabled(true);
	m->avatar_loader.start(&m->webcx);
	connect(&m->avatar_loader, SIGNAL(updated()), this, SLOT(onAvatarUpdated()));

	m->update_files_list_counter = 0;

	connect(ui->widget_diff_view, &FileDiffWidget::textcodecChanged, [&](){ updateDiffView(); });

	if (!global->start_with_shift_key && appsettings()->remember_and_restore_window_position) {
	Qt::WindowStates state = windowState();
	MySettings settings;

	settings.beginGroup("MainWindow");
	bool maximized = settings.value("Maximized").toBool();
	restoreGeometry(settings.value("Geometry").toByteArray());
	// ui->splitter->restoreState(settings.value("SplitterState").toByteArray());
	settings.endGroup();
	if (maximized) {
	state \|= Qt::WindowMaximized;
	setWindowState(state);
	}
	}

	startTimers();
	}

	MainWindow::~MainWindow()
	{
	stopPtyProcess();

	m->avatar_loader.interrupt();
	m->avatar_loader.wait();

	deleteTempFiles();

	delete m;
	delete ui;
	}

	bool MainWindow::checkGitCommand()
	{
	while (1) {
	if (misc::isExecutable(m->gcx.git_command)) {
	return true;
	}
	if (selectGitCommand(true).isEmpty()) {
	close();
	return false;
	}
	}
	}

	bool MainWindow::checkFileCommand()
	{
	while (1) {
	if (misc::isExecutable(global->file_command)) {
	return true;
	}
	if (selectFileCommand(true).isEmpty()) {
	close();
	return false;
	}
	}
	}

	ApplicationSettings *MainWindow::appsettings()
	{
	return &m->appsettings;
	}

	ApplicationSettings const *MainWindow::appsettings() const
	{
	return &m->appsettings;
	}

	bool MainWindow::execWelcomeWizardDialog()
	{
	WelcomeWizardDialog dlg(this);
	dlg.set_git_command_path(appsettings()->git_command);
	dlg.set_file_command_path(appsettings()->file_command);
	dlg.set_default_working_folder(appsettings()->default_working_dir);
	if (misc::isExecutable(appsettings()->git_command)) {
	m->gcx.git_command = appsettings()->git_command;
	Git g(m->gcx, QString());
	Git::User user = g.getUser(Git::Source::Global);
	dlg.set_user_name(user.name);
	dlg.set_user_email(user.email);
	}
	if (dlg.exec() == QDialog::Accepted) {
	appsettings()->git_command = m->gcx.git_command = dlg.git_command_path();
	appsettings()->file_command = global->file_command = dlg.file_command_path();
	appsettings()->default_working_dir = dlg.default_working_folder();
	SettingsDialog::saveSettings(&m->appsettings);

	if (misc::isExecutable(appsettings()->git_command)) {
	GitPtr g = git();
	Git::User user;
	user.name = dlg.user_name();
	user.email = dlg.user_email();
	g->setUser(user, true);
	}

	return true;
	}
	return false;
	}

	bool MainWindow::shown()
	{
	while (!misc::isExecutable(appsettings()->git_command) \|\| !misc::isExecutable(appsettings()->file_command)) {
	if (!execWelcomeWizardDialog()) {
	return false;
	}
	}

	setGitCommand(appsettings()->git_command, false);
	setFileCommand(appsettings()->file_command, false);

	writeLog(AboutDialog::appVersion() + '\n'); // print application version
	logGitVersion(); // print git command version

	setGpgCommand(appsettings()->gpg_command, false);

	{
	MySettings s;
	s.beginGroup("Remote");
	bool f = s.value("Online", true).toBool();
	s.endGroup();
	setRemoteOnline(f);
	}

	setUnknownRepositoryInfo();

	checkUser();

	return true;
	}

	WebContext *MainWindow::webContext()
	{
	return &m->webcx;
	}

	void MainWindow::startTimers()
	{
	// interval 10ms

	connect(&m->interval_10ms_timer, &QTimer::timeout, [&](){
	const int ms = 10;
	if (m->update_commit_table_counter > 0) {
	if (m->update_commit_table_counter > ms) {
	m->update_commit_table_counter -= ms;
	} else {
	m->update_commit_table_counter = 0;
	ui->tableWidget_log->viewport()->update();
	}
	}
	if (m->update_files_list_counter > 0) {
	if (m->update_files_list_counter > ms) {
	m->update_files_list_counter -= ms;
	} else {
	m->update_files_list_counter = 0;
	updateCurrentFilesList();
	}
	}
	});
	m->interval_10ms_timer.setInterval(10);
	m->interval_10ms_timer.start();

	startTimer(10);
	}

	TextEditorThemePtr MainWindow::themeForTextEditor()
	{
	return global->theme->text_editor_theme;
	}

	void MainWindow::setCurrentLogRow(int row)
	{
	if (row >= 0 && row < ui->tableWidget_log->rowCount()) {
	ui->tableWidget_log->setCurrentCell(row, 2);
	ui->tableWidget_log->setFocus();
	updateStatusBarText();
	}
	}

	bool MainWindow::event(QEvent *event)
	{
	QEvent::Type et = event->type();
	if (et == QEvent::KeyPress) {
	QKeyEvent e = dynamic_cast<QKeyEvent >(event);
	Q_ASSERT(e);
	int k = e->key();
	if (k == Qt::Key_Escape) {
	emit onEscapeKeyPressed();
	} else if (k == Qt::Key_Delete) {
	if (focusWidget() == ui->treeWidget_repos) {
	removeSelectedRepositoryFromBookmark(true);
	return true;
	}
	}
	}

	return QMainWindow::event(event);
	}

	bool MainWindow::eventFilter(QObject watched, QEvent event)
	{
	QEvent::Type et = event->type();

	if (et == QEvent::KeyPress) {
	QKeyEvent e = dynamic_cast<QKeyEvent >(event);
	Q_ASSERT(e);
	int k = e->key();
	if (watched == ui->treeWidget_repos) {
	if (k == Qt::Key_Enter \|\| k == Qt::Key_Return) {
	openSelectedRepository();
	return true;
	}
	if (!(e->modifiers() & Qt::ControlModifier)) {
	if (k >= 0 && k < 128 && QChar((uchar)k).isLetterOrNumber()) {
	appendCharToRepoFilter(k);
	return true;
	}
	if (k == Qt::Key_Backspace) {
	backspaceRepoFilter();
	return true;
	}
	if (k == Qt::Key_Escape) {
	clearRepoFilter();
	return true;
	}
	}
	if (k == Qt::Key_Tab) {
	ui->tableWidget_log->setFocus();
	return true;
	}
	} else if (watched == ui->tableWidget_log) {
	if (k == Qt::Key_Home) {
	setCurrentLogRow(0);
	return true;
	}
	if (k == Qt::Key_Escape) {
	ui->treeWidget_repos->setFocus();
	return true;
	}
	if (k == Qt::Key_Tab) {
	// consume the event
	return true;
	}
	} else if (watched == ui->listWidget_files \|\| watched == ui->listWidget_unstaged \|\| watched == ui->listWidget_staged) {
	if (k == Qt::Key_Escape) {
	ui->tableWidget_log->setFocus();
	return true;
	}
	}
	} else if (et == QEvent::FocusIn) {
	// ファイルリストがフォーカスを得たとき、diffビューを更新する。（コンテキストメニュー対応）
	if (watched == ui->listWidget_unstaged) {
	updateStatusBarText();
	updateUnstagedFileCurrentItem();
	return true;
	}
	if (watched == ui->listWidget_staged) {
	updateStatusBarText();
	updateStagedFileCurrentItem();
	return true;
	}
	}
	return false;
	}

	void MainWindow::closeEvent(QCloseEvent *event)
	{
	if (appsettings()->remember_and_restore_window_position) {
	setWindowOpacity(0);
	Qt::WindowStates state = windowState();
	bool maximized = (state & Qt::WindowMaximized) != 0;
	if (maximized) {
	state &= ~Qt::WindowMaximized;
	setWindowState(state);
	}
	{
	MySettings settings;

	settings.beginGroup("MainWindow");
	settings.setValue("Maximized", maximized);
	settings.setValue("Geometry", saveGeometry());
	// settings.setValue("SplitterState", ui->splitter->saveState());
	settings.endGroup();
	}
	}
	QMainWindow::closeEvent(event);
	}

	void MainWindow::setStatusBarText(QString const &text)
	{
	m->status_bar_label->setText(text);
	}

	void MainWindow::clearStatusBarText()
	{
	setStatusBarText(QString());
	}

	WebContext *MainWindow::getWebContextPtr()
	{
	return &m->webcx;
	}

	QString MainWindow::getObjectID(QListWidgetItem *item)
	{
	int i = indexOfDiff(item);
	if (i >= 0 && i < m->diff.result.size()) {
	Git::Diff const &diff = m->diff.result[i];
	return diff.blob.a_id;
	}
	return QString();
	}

	void MainWindow::onLogVisibilityChanged()
	{
	ui->action_window_log->setChecked(ui->dockWidget_log->isVisible());
	}

	void MainWindow::writeLog(char const *ptr, int len)
	{
	ui->widget_log->logicalMoveToBottom();
	ui->widget_log->write(ptr, len, false);
	ui->widget_log->setChanged(false);
	m->interaction_canceled = false;
	}

	void MainWindow::writeLog(const QString &str)
	{
	std::string s = str.toStdString();
	writeLog(s.c_str(), s.size());
	}

	void MainWindow::writeLog(QByteArray ba)
	{
	QString s = QString::fromUtf8(ba);
	writeLog(s);
	}

	bool MainWindow::saveRepositoryBookmarks() const
	{
	QString path = getBookmarksFilePath();
	return RepositoryBookmark::save(path, &m->repos);
	}

	void MainWindow::saveRepositoryBookmark(RepositoryItem item)
	{
	if (item.local_dir.isEmpty()) return;

	if (item.name.isEmpty()) {
	item.name = tr("Unnamed");
	}

	bool done = false;
	for (int i = 0; i < m->repos.size(); i++) {
	RepositoryItem *p = &m->repos[i];
	if (item.local_dir == p->local_dir) {
	*p = item;
	done = true;
	break;
	}
	}
	if (!done) {
	m->repos.push_back(item);
	}
	saveRepositoryBookmarks();
	updateRepositoriesList();
	}

	void MainWindow::buildRepoTree(QString const &group, QTreeWidgetItem item, QList<RepositoryItem> repos)
	{
	QString name = item->text(0);
	if (isGroupItem(item)) {
	int n = item->childCount();
	for (int i = 0; i < n; i++) {
	QTreeWidgetItem *child = item->child(i);
	QString sub = group / name;
	buildRepoTree(sub, child, repos);
	}
	} else {
	RepositoryItem const *repo = repositoryItem(item);
	if (repo) {
	RepositoryItem newrepo = *repo;
	newrepo.name = name;
	newrepo.group = group;
	item->setData(0, IndexRole, repos->size());
	repos->push_back(newrepo);
	}
	}
	}

	void MainWindow::refrectRepositories()
	{
	QList<RepositoryItem> newrepos;
	int n = ui->treeWidget_repos->topLevelItemCount();
	for (int i = 0; i < n; i++) {
	QTreeWidgetItem *item = ui->treeWidget_repos->topLevelItem(i);
	buildRepoTree(QString(), item, &newrepos);
	}
	m->repos = std::move(newrepos);
	saveRepositoryBookmarks();
	}

	void MainWindow::onRepositoriesTreeDropped()
	{
	refrectRepositories();
	QTreeWidgetItem *item = ui->treeWidget_repos->currentItem();
	if (item) item->setExpanded(true);
	}

	const QPixmap &MainWindow::digitsPixmap() const
	{
	return m->digits;
	}

	int MainWindow::digitWidth() const
	{
	return 5;
	}

	int MainWindow::digitHeight() const
	{
	return 7;
	}

	void MainWindow::drawDigit(QPainter *pr, int x, int y, int n) const
	{
	int w = digitWidth();
	int h = digitHeight();
	pr->drawPixmap(x, y, w, h, m->digits, n * w, 0, w, h);
	}

	QString MainWindow::defaultWorkingDir() const
	{
	return appsettings()->default_working_dir;
	}

	QColor MainWindow::color(unsigned int i)
	{
	unsigned int n = m->graph_color.width();
	if (n > 0) {
	n--;
	if (i > n) i = n;
	QRgb const p = (QRgb const )m->graph_color.scanLine(0);
	return QColor(qRed(p[i]), qGreen(p[i]), qBlue(p[i]));
	}
	return Qt::black;
	}

	bool MainWindow::isThereUncommitedChanges() const
	{
	return m->uncommited_changes;
	}

	Git::CommitItemList const *MainWindow::logs() const
	{
	return &m->logs;
	}

	QString MainWindow::currentWorkingCopyDir() const
	{
	QString workdir = m->current_repo.local_dir;
	if (!workdir.isEmpty()) return workdir;

	QTreeWidgetItem *treeitem = ui->treeWidget_repos->currentItem();
	if (treeitem) {
	RepositoryItem const *repo = repositoryItem(treeitem);
	if (repo) {
	workdir = repo->local_dir;
	return workdir;
	}
	}

	return QString();
	}

	GitPtr MainWindow::git(QString const &dir) const
	{
	const_cast<MainWindow *>(this)->checkGitCommand();

	GitPtr g = std::shared_ptr<Git>(new Git(m->gcx, dir));
	g->setLogCallback(git_callback, (void *)this);
	return g;
	}

	GitPtr MainWindow::git()
	{
	return git(currentWorkingCopyDir());
	}

	bool MainWindow::queryCommit(QString const &id, Git::CommitItem *out)
	{
	*out = Git::CommitItem();
	GitPtr g = git();
	return g->queryCommit(id, out);
	}

	void MainWindow::setLogEnabled(GitPtr g, bool f)
	{
	if (f) {
	g->setLogCallback(git_callback, this);
	} else {
	g->setLogCallback(nullptr, nullptr);
	}
	}

	QString MainWindow::makeRepositoryName(QString const &loc)
	{
	int i = loc.lastIndexOf('/');
	int j = loc.lastIndexOf('\\');
	if (i < j) i = j;
	if (i >= 0) {
	i++;
	j = loc.size();
	if (loc.endsWith(".git")) {
	j -= 4;
	}
	return loc.mid(i, j - i);
	}
	return QString();
	}

	RepositoryItem const MainWindow::findRegisteredRepository(QString workdir) const
	{
	workdir = QDir(workdir).absolutePath();
	workdir->replace('\\', '/');

	for (RepositoryItem const &item : m->repos) {
	Qt::CaseSensitivity cs = Qt::CaseSensitive;
	#ifdef Q_OS_WIN
	cs = Qt::CaseInsensitive;
	#endif
	if (workdir->compare(item.local_dir, cs) == 0) {
	return &item;
	}
	}
	return nullptr;
	}

	int MainWindow::repositoryIndex_(QTreeWidgetItem const *item) const
	{
	if (item) {
	int i = item->data(0, IndexRole).toInt();
	if (i >= 0 && i < m->repos.size()) {
	return i;
	}
	}
	return -1;
	}

	RepositoryItem const MainWindow::repositoryItem(QTreeWidgetItem const item) const
	{
	int row = repositoryIndex_(item);
	if (row >= 0 && row < m->repos.size()) {
	return &m->repos[row];
	}
	return nullptr;
	}

	static QTreeWidgetItem *newQTreeWidgetItem()
	{
	QTreeWidgetItem *item = new QTreeWidgetItem();
	item->setSizeHint(0, QSize(20, 20));
	return item;
	}

	QTreeWidgetItem *MainWindow::newQTreeWidgetFolderItem(QString const &name)
	{
	QTreeWidgetItem *item = newQTreeWidgetItem();
	item->setText(0, name);
	item->setData(0, IndexRole, GroupItem);
	item->setIcon(0, m->folder_icon);
	item->setFlags(item->flags() \| Qt::ItemIsEditable);
	return item;
	}

	void MainWindow::updateRepositoriesList()
	{
	QString path = getBookmarksFilePath();

	m->repos = RepositoryBookmark::load(path);

	QString filter = m->repository_filter_text;

	ui->treeWidget_repos->clear();

	std::map<QString, QTreeWidgetItem *> parentmap;

	for (int i = 0; i < m->repos.size(); i++) {
	RepositoryItem const &repo = m->repos[i];
	if (!filter.isEmpty() && repo.name.indexOf(filter, 0, Qt::CaseInsensitive) < 0) {
	continue;
	}
	QTreeWidgetItem *parent = nullptr;
	{
	QString group = repo.group;
	if (group.startsWith('/')) {
	group = group.mid(1);
	}
	auto it = parentmap.find(group);
	if (it != parentmap.end()) {
	parent = it->second;
	}
	if (!parent) {
	QStringList list = group.split('/', QString::SkipEmptyParts);
	if (list.isEmpty()) {
	list.push_back(tr("Default"));
	}
	for (QString const &name : list) {
	if (name.isEmpty()) continue;
	if (!parent) {
	auto it = parentmap.find(name);
	if (it != parentmap.end()) {
	parent = it->second;
	} else {
	parent = newQTreeWidgetFolderItem(name);
	ui->treeWidget_repos->addTopLevelItem(parent);
	}
	} else {
	QTreeWidgetItem *child = newQTreeWidgetFolderItem(name);
	parent->addChild(child);
	parent = child;
	}
	parent->setExpanded(true);
	}
	Q_ASSERT(parent);
	parentmap[group] = parent;
	}
	parent->setData(0, FilePathRole, "");
	}
	QTreeWidgetItem *child = newQTreeWidgetItem();
	child->setText(0, repo.name);
	child->setData(0, IndexRole, i);
	child->setIcon(0, m->repository_icon);
	child->setFlags(child->flags() & ~Qt::ItemIsDropEnabled);
	parent->addChild(child);
	parent->setExpanded(true);
	}
	}

	void MainWindow::showFileList(FilesListType files_list_type)
	{
	switch (files_list_type) {
	case FilesListType::SingleList:
	ui->stackedWidget->setCurrentWidget(ui->page_files);
	break;
	case FilesListType::SideBySide:
	ui->stackedWidget->setCurrentWidget(ui->page_uncommited);
	break;
	}
	}

	void MainWindow::clearFileList()
	{
	showFileList(FilesListType::SingleList);
	ui->listWidget_unstaged->clear();
	ui->listWidget_staged->clear();
	ui->listWidget_files->clear();
	}

	void MainWindow::clearDiffView()
	{
	ui->widget_diff_view->clearDiffView();
	}

	void MainWindow::clearRepositoryInfo()
	{
	m->head_id = QString();
	m->current_branch = Git::Branch();
	m->server_type = ServerType::Standard;
	m->github = GitHubRepositoryInfo();
	ui->label_repo_name->setText(QString());
	ui->label_branch_name->setText(QString());

	}

	void MainWindow::setRepositoryInfo(QString const &reponame, QString const &brname)
	{
	ui->label_repo_name->setText(reponame);
	ui->label_branch_name->setText(brname);
	}

	void MainWindow::setUnknownRepositoryInfo()
	{
	setRepositoryInfo("---", "");

	Git g(m->gcx, QString());
	Git::User user = g.getUser(Git::Source::Global);
	setWindowTitle_(user);
	}

	bool MainWindow::makeDiff(QString id, QList<Git::Diff> *out)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return false;

	Git::FileStatusList list = g->status();
	m->uncommited_changes = !list.empty();

	if (id.isEmpty() && !isThereUncommitedChanges()) {
	id = m->objcache.revParse("HEAD");
	}

	bool uncommited = (id.isEmpty() && isThereUncommitedChanges());

	GitDiff dm(&m->objcache);
	if (uncommited) {
	dm.diff_uncommited(out);
	} else {
	dm.diff(id, out);
	}

	return true; // success
	}

	void MainWindow::addDiffItems(QList<Git::Diff> const *diff_list, std::function<void(QString const &filename, QString header, int idiff)> add_item)
	{
	for (int idiff = 0; idiff < diff_list->size(); idiff++) {
	Git::Diff const &diff = diff_list->at(idiff);
	QString header;

	switch (diff.type) {
	case Git::Diff::Type::Modify: header = "(chg) "; break;
	case Git::Diff::Type::Copy: header = "(cpy) "; break;
	case Git::Diff::Type::Rename: header = "(ren) "; break;
	case Git::Diff::Type::Create: header = "(add) "; break;
	case Git::Diff::Type::Delete: header = "(del) "; break;
	case Git::Diff::Type::ChType: header = "(chg) "; break;
	case Git::Diff::Type::Unmerged: header = "(unmerged) "; break;
	}

	add_item(diff.path, header, idiff);
	}
	}

	void MainWindow::updateFilesList(QString id, bool wait)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	if (!wait) return;

	clearFileList();

	Git::FileStatusList stats = g->status();
	m->uncommited_changes = !stats.empty();

	FilesListType files_list_type = FilesListType::SingleList;

	bool staged = false;
	auto AddItem = [&](QString const &filename, QString header, int idiff){
	if (header.isEmpty()) {
	header = "(??\?) "; // damn trigraph
	}
	QListWidgetItem *item = new QListWidgetItem(header + filename);
	item->setData(FilePathRole, filename);
	item->setData(DiffIndexRole, idiff);
	item->setData(HunkIndexRole, -1);
	switch (files_list_type) {
	case FilesListType::SingleList:
	ui->listWidget_files->addItem(item);
	break;
	case FilesListType::SideBySide:
	if (staged) {
	ui->listWidget_staged->addItem(item);
	} else {
	ui->listWidget_unstaged->addItem(item);
	}
	break;
	}
	};

	if (id.isEmpty()) {
	bool uncommited = isThereUncommitedChanges();
	if (uncommited) {
	files_list_type = FilesListType::SideBySide;
	}
	if (!makeDiff(uncommited ? QString() : id, &m->diff.result)) {
	return;
	}

	std::map<QString, int> diffmap;

	for (int idiff = 0; idiff < m->diff.result.size(); idiff++) {
	Git::Diff const &diff = m->diff.result[idiff];
	QString filename = diff.path;
	if (!filename.isEmpty()) {
	diffmap[filename] = idiff;
	}
	}

	showFileList(files_list_type);

	for (Git::FileStatus const &s : stats) {
	staged = (s.isStaged() && s.code_y() == ' ');
	int idiff = -1;
	QString header;
	auto it = diffmap.find(s.path1());
	if (it != diffmap.end()) {
	idiff = it->second;
	}
	QString path = s.path1();
	if (s.code() == Git::FileStatusCode::Unknown) {
	qDebug() << "something wrong...";
	} else if (s.code() == Git::FileStatusCode::Untracked) {
	// nop
	} else if (s.isUnmerged()) {
	header += "(unmerged) ";
	} else if (s.code() == Git::FileStatusCode::AddedToIndex) {
	header = "(add) ";
	} else if (s.code_x() == 'D' \|\| s.code_y() == 'D' \|\| s.code() == Git::FileStatusCode::DeletedFromIndex) {
	header = "(del) ";
	} else if (s.code_x() == 'R' \|\| s.code() == Git::FileStatusCode::RenamedInIndex) {
	header = "(ren) ";
	path = s.path2(); // renamed newer path
	} else if (s.code_x() == 'M' \|\| s.code_y() == 'M') {
	header = "(chg) ";
	}
	AddItem(path, header, idiff);
	}
	} else {
	if (!makeDiff(id, &m->diff.result)) {
	return;
	}
	showFileList(files_list_type);
	addDiffItems(&m->diff.result, AddItem);
	}

	for (Git::Diff const &diff : m->diff.result) {
	QString key = GitDiff::makeKey(diff);
	m->diff_cache[key] = diff;
	}
	}

	void MainWindow::updateFilesList(QString id, QList<Git::Diff> diff_list, QListWidget listwidget)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	listwidget->clear();

	auto AddItem = [&](QString const &filename, QString header, int idiff){
	if (header.isEmpty()) {
	header = "(??\?) "; // damn trigraph
	}
	QListWidgetItem *item = new QListWidgetItem(header + filename);
	item->setData(FilePathRole, filename);
	item->setData(DiffIndexRole, idiff);
	item->setData(HunkIndexRole, -1);
	listwidget->addItem(item);
	};

	GitDiff dm(&m->objcache);
	if (!dm.diff(id, diff_list)) return;

	addDiffItems(diff_list, AddItem);
	}

	void MainWindow::updateFilesList(Git::CommitItem const &commit, bool wait)
	{
	QString id;
	if (Git::isUncommited(commit)) {
	// empty id for uncommited changes
	} else {
	id = commit.commit_id;
	}
	updateFilesList(id, wait);
	}

	void MainWindow::updateCurrentFilesList()
	{
	QTableWidgetItem *item = ui->tableWidget_log->item(selectedLogIndex(), 0);
	if (!item) return;
	int row = item->data(IndexRole).toInt();
	int logs = (int)m->logs.size();
	if (row < logs) {
	updateFilesList(m->logs[row], true);
	}
	}

	void MainWindow::prepareLogTableWidget()
	{
	QStringList cols = {
	tr("Graph"),
	tr("Commit"),
	tr("Date"),
	tr("Author"),
	tr("Description"),
	};
	int n = cols.size();
	ui->tableWidget_log->setColumnCount(n);
	ui->tableWidget_log->setRowCount(0);
	for (int i = 0; i < n; i++) {
	QString const &text = cols[i];
	QTableWidgetItem *item = new QTableWidgetItem(text);
	ui->tableWidget_log->setHorizontalHeaderItem(i, item);
	}

	updateCommitGraph(); // コミットグラフを更新
	}

	QString MainWindow::currentRepositoryName() const
	{
	return m->current_repo.name;
	}

	Git::Branch const &MainWindow::currentBranch() const
	{
	return m->current_branch;
	}

	bool MainWindow::isValidWorkingCopy(GitPtr const &g) const
	{
	return g && g->isValidWorkingCopy();
	}

	void MainWindow::queryRemotes(GitPtr g)
	{
	m->remotes = g->getRemotes();
	std::sort(m->remotes.begin(), m->remotes.end());
	}

	void MainWindow::queryBranches(GitPtr g)
	{
	Q_ASSERT(g);
	m->branch_map.clear();
	QList<Git::Branch> branches = g->branches();
	for (Git::Branch const &b : branches) {
	if (b.isCurrent()) {
	m->current_branch = b;
	}
	m->branch_map[b.id].append(b);
	}
	}

	void MainWindow::updateRemoteInfo()
	{
	queryRemotes(git());

	QString current_remote;
	{
	Git::Branch const &r = currentBranch();
	current_remote = r.remote;
	}
	if (current_remote.isEmpty()) {
	if (m->remotes.size() == 1) {
	current_remote = m->remotes[0];
	}
	}

	ui->lineEdit_remote->setText(current_remote);
	}

	QList<Git::Branch> MainWindow::findBranch(QString const &id)
	{
	auto it = m->branch_map.find(id);
	if (it != m->branch_map.end()) {
	return it->second;
	}
	return QList<Git::Branch>();
	}

	QString MainWindow::abbrevCommitID(Git::CommitItem const &commit)
	{
	return commit.commit_id.mid(0, 7);
	}

	QString MainWindow::findFileID(GitPtr /g/, const QString &commit_id, const QString &file)
	{
	return lookupFileID(&m->objcache, commit_id, file);
	}

	bool MainWindow::isGitHub() const
	{
	return m->server_type == ServerType::GitHub;
	}

	void MainWindow::updateCommitTableLater()
	{
	m->update_commit_table_counter = 200;
	}

	void MainWindow::onAvatarUpdated()
	{
	updateCommitTableLater();
	}

	bool MainWindow::isAvatarEnabled() const
	{
	return appsettings()->get_committer_icon;
	}

	Git::CommitItem const *MainWindow::commitItem(int row) const
	{
	if (row >= 0 && row < (int)m->logs.size()) {
	return &m->logs[row];
	}
	return nullptr;
	}

	QIcon MainWindow::verifiedIcon(char s) const
	{
	Git::SignatureGrade g = Git::evaluateSignature(s);
	switch (g) {
	case Git::SignatureGrade::Good:
	return m->signature_good_icon;
	case Git::SignatureGrade::Bad:
	return m->signature_bad_icon;
	case Git::SignatureGrade::Unknown:
	case Git::SignatureGrade::Dubious:
	case Git::SignatureGrade::Missing:
	return m->signature_dubious_icon;
	}
	return QIcon();
	}

	QIcon MainWindow::committerIcon(int row) const
	{
	QIcon icon;
	if (isAvatarEnabled()) {
	if (row >= 0 && row < (int)m->logs.size()) {
	Git::CommitItem const &commit = m->logs[row];
	if (commit.email.indexOf('@') > 0) {
	std::string email = commit.email.toStdString();
	icon = m->avatar_loader.fetch(email, true); // from gavatar
	}
	}
	}
	return icon;
	}

	QList<MainWindow::Label> const *MainWindow::label(int row)
	{
	auto it = m->label_map.find(row);
	if (it != m->label_map.end()) {
	return &it->second;
	}
	return nullptr;
	}

	QString MainWindow::makeCommitInfoText(int row, QList<Label> *label_list)
	{
	QString message_ex;
	Git::CommitItem const *commit = &m->logs[row];
	{ // branch
	if (label_list) {
	if (commit->commit_id == m->head_id) {
	Label label(Label::Head);
	label.text = "HEAD";
	label_list->push_back(label);
	}
	}
	QList<Git::Branch> list = findBranch(commit->commit_id);
	for (Git::Branch const &b : list) {
	- if (b.flags & Git::Branch::HeadDetached) continue;
	+ if (b.flags & Git::Branch::HeadDetachedAt) continue;
	+ if (b.flags & Git::Branch::HeadDetachedFrom) continue;
	Label label(Label::LocalBranch);
	label.text = b.name;
	if (!b.remote.isEmpty()) {
	label.kind = Label::RemoteBranch;
	label.text = "remotes" / b.remote / label.text;
	}
	if (b.ahead > 0) {
	label.text += tr(", %1 ahead").arg(b.ahead);
	}
	if (b.behind > 0) {
	label.text += tr(", %1 behind").arg(b.behind);
	}
	message_ex += " {" + label.text + '}';
	if (label_list) label_list->push_back(label);
	}
	}
	{ // tag
	QList<Git::Tag> list = findTag(commit->commit_id);
	for (Git::Tag const &t : list) {
	Label label(Label::Tag);
	label.text = t.name;
	- message_ex += QString(" {t:%1}").arg(label.text);
	+ message_ex += QString(" {#%1}").arg(label.text);
	if (label_list) label_list->push_back(label);
	}
	}
	return message_ex;
	}

	void MainWindow::setWindowTitle_(Git::User const &user)
	{
	if (user.name.isEmpty() && user.email.isEmpty()) {
	setWindowTitle(qApp->applicationName());
	} else {
	setWindowTitle(QString("%1 : %2 <%3>")
	.arg(qApp->applicationName())
	.arg(user.name)
	.arg(user.email)
	);
	}
	}

	void MainWindow::updateWindowTitle(GitPtr g)
	{
	if (isValidWorkingCopy(g)) {
	Git::User user = g->getUser(Git::Source::Default);
	setWindowTitle_(user);
	} else {
	setUnknownRepositoryInfo();
	}
	}

	QStringList MainWindow::remotes() const
	{
	return m->remotes;
	}

	int MainWindow::limitLogCount() const
	{
	int n = appsettings()->maximum_number_of_commit_item_acquisitions;
	return (n >= 1 && n <= 100000) ? n : 10000;
	}

	struct TemporaryCommitItem {
	Git::CommitItem const *commit;
	std::vector<TemporaryCommitItem *> children;
	};

	Git::CommitItemList MainWindow::retrieveCommitLog(GitPtr g)
	{
	Git::CommitItemList list = g->log(limitLogCount());

	// 親子関係を調べて、順番が狂っていたら、修正する。

	std::set<QString> set;

	size_t i = 0;
	while (i < list.size()) {
	size_t newpos = -1;
	for (QString const &parent : list[i].parent_ids) {
	auto it = set.find(parent);
	if (it != set.end()) {
	for (size_t j = 0; j < i; j++) {
	if (parent == list[j].commit_id) {
	if (newpos == (size_t)-1 \|\| j < newpos) {
	newpos = j;
	}
	qDebug() << "fix commit order" << parent;
	break;
	}
	}
	}
	}
	set.insert(set.end(), list[i].commit_id);
	if (newpos != (size_t)-1) {
	Git::CommitItem t = list[newpos];
	list.erase(list.begin() + newpos);
	list.insert(list.begin() + i, t);
	}
	i++;
	}

	return list;
	}

	void MainWindow::detectGitServerType(GitPtr g)
	{
	m->server_type = ServerType::Standard;
	m->github = GitHubRepositoryInfo();

	QString push_url;
	QList<Git::Remote> remotes;
	g->getRemoteURLs(&remotes);
	for (Git::Remote const &r : remotes) {
	if (r.purpose == "push") {
	push_url = r.url;
	}
	}

	auto Check = [&](QString const &s){
	int i = push_url.indexOf(s);
	if (i > 0) return i + s.size();
	return 0;
	};

	// check GitHub
	int pos = Check("@github.com:");
	if (pos == 0) {
	pos = Check("://github.com/");
	}
	if (pos > 0) {
	int end = push_url.size();
	{
	QString s = ".git";
	if (push_url.endsWith(s)) {
	end -= s.size();
	}
	}
	QString s = push_url.mid(pos, end - pos);
	int i = s.indexOf('/');
	if (i > 0) {
	QString user = s.mid(0, i);
	QString repo = s.mid(i + 1);
	m->github.owner_account_name = user;
	m->github.repository_name = repo;
	}
	m->server_type = ServerType::GitHub;
	}
	}

	bool MainWindow::fetch(GitPtr g)
	{
	m->pty_condition = PtyCondition::Fetch;
	m->pty_process_ok = true;
	g->fetch(&m->pty_process);
	while (1) {
	if (m->pty_process.wait(1)) break;
	QApplication::processEvents();
	}
	return m->pty_process_ok;
	}

	void MainWindow::clearLog()
	{
	m->logs.clear();
	m->label_map.clear();
	m->uncommited_changes = false;
	ui->tableWidget_log->clearContents();
	ui->tableWidget_log->scrollToTop();
	}

	void MainWindow::openRepository_(GitPtr g)
	{
	m->objcache.setup(g);

	if (isValidWorkingCopy(g)) {

	if (isRemoteOnline() && appsettings()->automatically_fetch_when_opening_the_repository) {
	if (!fetch(g)) {
	return;
	}
	}

	clearLog();
	clearRepositoryInfo();

	detectGitServerType(g);

	updateFilesList(QString(), true);

	bool canceled = false;
	ui->tableWidget_log->setEnabled(false);

	// ログを取得
	m->logs = retrieveCommitLog(g);
	// ブランチを取得
	queryBranches(g);
	// タグを取得
	m->tag_map.clear();
	QList<Git::Tag> tags = g->tags();
	for (Git::Tag const &tag : tags) {
	Git::Tag t = tag;
	t.id = m->objcache.getCommitIdFromTag(t.id);
	m->tag_map[t.id].push_back(t);
	}

	ui->tableWidget_log->setEnabled(true);
	updateCommitTableLater();
	if (canceled) return;

	- QString branch_name = currentBranch().name;
	- if (currentBranch().flags & Git::Branch::HeadDetached) {
	- branch_name = QString("(HEAD detached at %1)").arg(branch_name);
	+ QString branch_name;
	+ if (currentBranch().flags & Git::Branch::HeadDetachedAt) {
	+ branch_name += QString("(HEAD detached at %1)").arg(currentBranch().name);
	+ }
	+ if (currentBranch().flags & Git::Branch::HeadDetachedFrom) {
	+ branch_name += QString("(HEAD detached from %1)").arg(currentBranch().name);
	+ }
	+ if (branch_name.isEmpty()) {
	+ branch_name = currentBranch().name;
	}

	QString repo_name = currentRepositoryName();
	setRepositoryInfo(repo_name, branch_name);
	} else {
	clearLog();
	clearRepositoryInfo();
	}

	updateRemoteInfo();

	updateWindowTitle(g);

	m->head_id = m->objcache.revParse("HEAD");

	if (isThereUncommitedChanges()) {
	Git::CommitItem item;
	item.parent_ids.push_back(m->current_branch.id);
	item.message = tr("Uncommited changes");
	m->logs.insert(m->logs.begin(), item);
	}

	prepareLogTableWidget();

	int count = m->logs.size();

	ui->tableWidget_log->setRowCount(count);

	int selrow = -1;

	for (int row = 0; row < count; row++) {
	Git::CommitItem const *commit = &m->logs[row];
	{
	QTableWidgetItem *item = new QTableWidgetItem();
	item->setData(IndexRole, row);
	ui->tableWidget_log->setItem(row, 0, item);
	}
	int col = 1; // カラム0はコミットグラフなので、その次から
	auto AddColumn = [&](QString const &text, bool bold, QString const &tooltip){
	QTableWidgetItem *item = new QTableWidgetItem(text);
	if (!tooltip.isEmpty()) {
	QString tt = tooltip;
	tt.replace('\n', ' ');
	tt = tt.toHtmlEscaped();
	tt = "<p style='white-space: pre'>" + tt + "</p>";
	item->setToolTip(tt);
	}
	if (bold) {
	QFont font = item->font();
	font.setBold(true);
	item->setFont(font);
	}
	ui->tableWidget_log->setItem(row, col, item);
	col++;
	};
	QString commit_id;
	QString datetime;
	QString author;
	QString message;
	QString message_ex;
	bool isHEAD = commit->commit_id == m->head_id;
	bool bold = false;
	{
	if (Git::isUncommited(*commit)) { // 未コミットの時
	bold = true; // 太字
	selrow = row;
	} else {
	if (isHEAD && !isThereUncommitedChanges()) { // HEADで、未コミットがないとき
	bold = true; // 太字
	selrow = row;
	}
	commit_id = abbrevCommitID(*commit);
	}
	datetime = misc::makeDateTimeString(commit->commit_date);
	author = commit->author;
	message = commit->message;
	message_ex = makeCommitInfoText(row, &m->label_map[row]);
	}
	AddColumn(commit_id, false, QString());
	AddColumn(datetime, false, QString());
	AddColumn(author, false, QString());
	AddColumn(message, bold, message + message_ex);
	ui->tableWidget_log->setRowHeight(row, 24);
	}
	ui->tableWidget_log->resizeColumnsToContents();
	ui->tableWidget_log->horizontalHeader()->setStretchLastSection(false);
	ui->tableWidget_log->horizontalHeader()->setStretchLastSection(true);

	ui->tableWidget_log->setFocus();
	setCurrentLogRow(0);

	QTableWidgetItem *p = ui->tableWidget_log->item(selrow < 0 ? 0 : selrow, 2);
	ui->tableWidget_log->setCurrentItem(p);

	udpateButton();
	}

	void MainWindow::removeRepositoryFromBookmark(int index, bool ask)
	{
	if (ask) {
	int r = QMessageBox::warning(this, tr("Confirm Remove"), tr("Are you sure you want to remove the repository from bookmarks ?") + '\n' + tr("(Files will NOT be deleted)"), QMessageBox::Ok, QMessageBox::Cancel);
	if (r != QMessageBox::Ok) return;
	}
	if (index >= 0 && index < m->repos.size()) {
	m->repos.erase(m->repos.begin() + index);
	saveRepositoryBookmarks();
	updateRepositoriesList();
	}
	}

	void MainWindow::removeSelectedRepositoryFromBookmark(bool ask)
	{
	int i = indexOfRepository(ui->treeWidget_repos->currentItem());
	removeRepositoryFromBookmark(i, ask);
	}

	void MainWindow::openRepository(bool validate, bool waitcursor)
	{
	if (validate) {
	QString dir = currentWorkingCopyDir();
	if (!QFileInfo(dir).isDir()) {
	int r = QMessageBox::warning(this, tr("Open Repository"), dir + "\n\n" + tr("No such folder") + "\n\n" + tr("Remove from bookmark ?"), QMessageBox::Ok, QMessageBox::Cancel);
	if (r == QMessageBox::Ok) {
	removeSelectedRepositoryFromBookmark(false);
	}
	return;
	}
	if (!Git::isValidWorkingCopy(dir)) {
	QMessageBox::warning(this, tr("Open Repository"), tr("Not a valid git repository") + "\n\n" + dir);
	return;
	}
	}

	if (waitcursor) {
	OverrideWaitCursor;
	openRepository(false, false);
	return;
	}

	GitPtr g = git(); // ポインタの有効性チェックはしない（nullptrでも続行）
	openRepository_(g);
	}

	void MainWindow::reopenRepository(bool log, std::function<void(GitPtr g)> callback)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	OverrideWaitCursor;
	if (log) {
	setLogEnabled(g, true);
	AsyncExecGitThread_ th(g, callback);
	th.start();
	while (1) {
	if (th.wait(1)) break;
	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
	}
	setLogEnabled(g, false);
	} else {
	callback(g);
	}
	openRepository_(g);
	}

	void MainWindow::udpateButton()
	{
	Git::Branch b = currentBranch();

	int n;

	n = b.ahead > 0 ? b.ahead : -1;
	ui->toolButton_push->setNumber(n);

	n = b.behind > 0 ? b.behind : -1;
	ui->toolButton_pull->setNumber(n);
	}

	void MainWindow::autoOpenRepository(QString dir)
	{
	auto Open = [&](RepositoryItem const &item){
	m->current_repo = item;
	openRepository(false);
	};

	RepositoryItem const *repo = findRegisteredRepository(&dir);
	if (repo) {
	Open(*repo);
	return;
	}

	RepositoryItem newitem;
	GitPtr g = git(dir);
	if (isValidWorkingCopy(g)) {
	ushort const *left = dir.utf16();
	ushort const *right = left + dir.size();
	if (right[-1] == '/' \|\| right[-1] == '\\') {
	right--;
	}
	ushort const *p = right;
	while (left + 1 < p && !(p[-1] == '/' \|\| p[-1] == '\\')) p--;
	if (p < right) {
	newitem.local_dir = dir;
	newitem.name = QString::fromUtf16(p, right - p);
	saveRepositoryBookmark(newitem);
	Open(newitem);
	return;
	}
	}
	}

	void MainWindow::openSelectedRepository()
	{
	QTreeWidgetItem *treeitem = ui->treeWidget_repos->currentItem();
	RepositoryItem const *item = repositoryItem(treeitem);
	if (item) {
	m->current_repo = *item;
	openRepository(true, true);
	}
	}

	QString MainWindow::getBookmarksFilePath() const
	{
	return global->app_config_dir / "bookmarks.xml";
	}



	void MainWindow::commit(bool amend)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	while (1) {
	Git::User user = g->getUser(Git::Source::Default);
	QString sign_id = g->signingKey(Git::Source::Default);
	gpg::Data key;
	{
	QList<gpg::Data> keys;
	gpg::listKeys(global->gpg_command, &keys);
	for (gpg::Data const &k : keys) {
	if (k.id == sign_id) {
	key = k;
	}
	}
	}
	CommitDialog dlg(this, currentRepositoryName(), user, key);
	if (amend) {
	dlg.setText(m->logs[0].message);
	}
	if (dlg.exec() == QDialog::Accepted) {
	QString text = dlg.text();
	if (text.isEmpty()) {
	QMessageBox::warning(this, tr("Commit"), tr("Commit message can not be omitted."));
	continue;
	}
	bool sign = dlg.isSigningEnabled();
	bool ok;
	if (amend) {
	ok = g->commit_amend_m(text, sign, &m->pty_process);
	} else {
	ok = g->commit(text, sign, &m->pty_process);
	}
	if (ok) {
	openRepository(true);
	} else {
	QString err = g->errorMessage().trimmed();
	err += "\n*** ";
	err += tr("Failed to commit");
	err += " ***\n";
	writeLog(err);
	}
	break;
	} else {
	break;
	}
	}
	}

	void MainWindow::commit_amend()
	{
	commit(true);
	}


	void MainWindow::updateStatusBarText()
	{
	QString text;

	QWidget *w = QWidget::focusWidget();
	if (w == ui->treeWidget_repos) {
	QTreeWidgetItem *ite = ui->treeWidget_repos->currentItem();
	RepositoryItem const *item = repositoryItem(ite);
	if (item) {
	text = QString("%1 : %2")
	.arg(item->name)
	.arg(misc::normalizePathSeparator(item->local_dir))
	;
	}
	} else if (w == ui->tableWidget_log) {
	QTableWidgetItem *item = ui->tableWidget_log->item(selectedLogIndex(), 0);
	if (item) {
	int row = item->data(IndexRole).toInt();
	if (row < (int)m->logs.size()) {
	Git::CommitItem const &commit = m->logs[row];
	if (Git::isUncommited(commit)) {
	text = tr("Uncommited changes");
	} else {
	QString id = commit.commit_id;
	text = QString("%1 : %2%3")
	.arg(id.mid(0, 7))
	.arg(commit.message)
	.arg(makeCommitInfoText(row, nullptr))
	;
	}
	}
	}
	}

	setStatusBarText(text);
	}

	void MainWindow::execRepositoryPropertyDialog(QString workdir, bool open_repository_menu)
	{
	if (workdir.isEmpty()) {
	workdir = currentWorkingCopyDir();
	}
	QString name;
	RepositoryItem const *repo = findRegisteredRepository(&workdir);
	if (repo) {
	name = repo->name;
	}
	if (name.isEmpty()) {
	name = makeRepositoryName(workdir);
	}
	GitPtr g = git(workdir);
	RepositoryPropertyDialog dlg(this, g, *repo, open_repository_menu);
	dlg.exec();
	if (dlg.isRemoteChanged()) {
	updateRemoteInfo();
	}
	}



	void MainWindow::on_action_commit_triggered()
	{
	commit();
	}

	void MainWindow::on_action_fetch_triggered()
	{
	if (!isRemoteOnline()) return;

	reopenRepository(true, [&](GitPtr g){
	fetch(g);
	});
	}

	void MainWindow::on_action_push_triggered()
	{
	if (!isRemoteOnline()) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	if (g->getRemotes().isEmpty()) {
	QMessageBox::warning(this, qApp->applicationName(), tr("No remote repository is registered."));
	execRepositoryPropertyDialog(QString(), true);
	return;
	}

	int exitcode = 0;
	QString errormsg;

	reopenRepository(true, [&](GitPtr g){
	g->push(false, &m->pty_process);
	while (1) {
	if (m->pty_process.wait(1)) break;
	QApplication::processEvents();
	}
	exitcode = m->pty_process.getExitCode();
	errormsg = m->pty_process.getMessage();
	});

	if (exitcode == 128) {
	if (errormsg.indexOf("no upstream branch") >= 0) {
	QString brname = currentBranch().name;

	QString msg = tr("The current branch %1 has no upstream branch.");
	msg = msg.arg(brname);
	msg += '\n';
	msg += tr("You try push --set-upstream");
	QMessageBox::warning(this, qApp->applicationName(), msg);
	pushSetUpstream(false);
	return;
	}
	if (errormsg.indexOf("Connection refused") >= 0) {
	QMessageBox::critical(this, qApp->applicationName(), tr("Connection refused."));
	return;
	}
	}
	}

	void MainWindow::on_action_pull_triggered()
	{
	if (!isRemoteOnline()) return;

	reopenRepository(true, [&](GitPtr g){
	m->pty_condition = PtyCondition::Pull;
	m->pty_process_ok = true;
	g->pull(&m->pty_process);
	while (1) {
	if (m->pty_process.wait(1)) break;
	QApplication::processEvents();
	}
	});
	}

	void MainWindow::on_toolButton_push_clicked()
	{
	ui->action_push->trigger();
	}

	void MainWindow::on_toolButton_pull_clicked()
	{
	ui->action_pull->trigger();
	}

	void MainWindow::on_treeWidget_repos_currentItemChanged(QTreeWidgetItem * /current/, QTreeWidgetItem * /previous/)
	{
	updateStatusBarText();
	}

	void MainWindow::on_treeWidget_repos_itemDoubleClicked(QTreeWidgetItem * /item/, int /column/)
	{
	openSelectedRepository();
	}

	void MainWindow::execCommitPropertyDialog(QWidget parent, Git::CommitItem const commit)
	{
	CommitPropertyDialog dlg(parent, this, commit);
	dlg.exec();
	}

	QAction MainWindow::addMenuActionProperty(QMenu menu)
	{
	return menu->addAction(tr("&Property"));
	}

	int MainWindow::indexOfRepository(QTreeWidgetItem const *treeitem) const
	{
	if (!treeitem) return -1;
	return treeitem->data(0, IndexRole).toInt();
	}

	void MainWindow::on_treeWidget_repos_customContextMenuRequested(const QPoint &pos)
	{
	QTreeWidgetItem *treeitem = ui->treeWidget_repos->currentItem();
	if (!treeitem) return;

	RepositoryItem const *repo = repositoryItem(treeitem);

	int index = indexOfRepository(treeitem);
	if (isGroupItem(treeitem)) { // group item
	QMenu menu;
	QAction *a_add_new_group = menu.addAction(tr("&Add new group"));
	QAction *a_delete_group = menu.addAction(tr("&Delete group"));
	QAction *a_rename_group = menu.addAction(tr("&Rename group"));
	QPoint pt = ui->treeWidget_repos->mapToGlobal(pos);
	QAction *a = menu.exec(pt + QPoint(8, -8));
	if (a) {
	if (a == a_add_new_group) {
	QTreeWidgetItem *child = newQTreeWidgetFolderItem(tr("New group"));
	treeitem->addChild(child);
	child->setFlags(child->flags() \| Qt::ItemIsEditable);
	ui->treeWidget_repos->setCurrentItem(child);
	return;
	}
	if (a == a_delete_group) {
	QTreeWidgetItem *parent = treeitem->parent();
	if (parent) {
	int i = parent->indexOfChild(treeitem);
	delete parent->takeChild(i);
	} else {
	int i = ui->treeWidget_repos->indexOfTopLevelItem(treeitem);
	delete ui->treeWidget_repos->takeTopLevelItem(i);
	}
	refrectRepositories();
	return;
	}
	if (a == a_rename_group) {
	ui->treeWidget_repos->editItem(treeitem);
	return;
	}
	}
	} else if (repo) { // repository item
	QString open_terminal = tr("Open &terminal");
	QString open_commandprompt = tr("Open command promp&t");
	QMenu menu;
	QAction *a_open = menu.addAction(tr("&Open"));
	menu.addSeparator();
	#ifdef Q_OS_WIN
	QAction *a_open_terminal = menu.addAction(open_commandprompt);
	(void)open_terminal;
	#else
	QAction *a_open_terminal = menu.addAction(open_terminal);
	(void)open_commandprompt;
	#endif
	QAction *a_open_folder = menu.addAction(tr("Open &folder"));
	menu.addSeparator();
	QAction *a_remove = menu.addAction(tr("&Remove"));

	menu.addSeparator();
	QAction *a_properties = addMenuActionProperty(&menu);

	QPoint pt = ui->treeWidget_repos->mapToGlobal(pos);
	QAction *a = menu.exec(pt + QPoint(8, -8));
	if (a) {
	if (a == a_open) {
	openSelectedRepository();
	return;
	}
	if (a == a_open_folder) {
	openExplorer(repo);
	return;
	}
	if (a == a_open_terminal) {
	openTerminal(repo);
	return;
	}
	if (a == a_remove) {
	removeRepositoryFromBookmark(index, true);
	return;
	}
	if (a == a_properties) {
	execRepositoryPropertyDialog(repo->local_dir);
	return;
	}
	}
	}
	}

	void MainWindow::execCommitExploreWindow(QWidget parent, Git::CommitItem const commit)
	{
	CommitExploreWindow win(parent, this, &m->objcache, commit);
	win.exec();
	}

	void MainWindow::on_tableWidget_log_customContextMenuRequested(const QPoint &pos)
	{
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit) {
	int row = selectedLogIndex();

	QMenu menu;

	QAction *a_copy_id_7_letters = menu.addAction(tr("Copy commit id (7 letters)"));
	QAction *a_copy_id_complete = menu.addAction(tr("Copy commit id (completely)"));

	menu.addSeparator();

	QAction *a_push_upstream = nullptr;
	if (pushSetUpstream(true)) {
	a_push_upstream = menu.addAction("push --set-upstream ...");
	}

	QAction *a_edit_comment = nullptr;
	if (row == 0 && currentBranch().ahead > 0) {
	a_edit_comment = menu.addAction(tr("Edit comment..."));
	}

	bool is_valid_commit_id = Git::isValidID(commit->commit_id);

	QAction *a_checkout = is_valid_commit_id ? menu.addAction(tr("Checkout/Branch...")) : nullptr;
	QAction *a_delbranch = is_valid_commit_id ? menu.addAction(tr("Delete branch...")) : nullptr;
	QAction *a_merge = is_valid_commit_id ? menu.addAction(tr("Merge")) : nullptr;
	QAction *a_cherrypick = is_valid_commit_id ? menu.addAction(tr("Cherry-pick")) : nullptr;

	QAction *a_edit_tags = is_valid_commit_id ? menu.addAction(tr("Edit tags...")) : nullptr;
	QAction *a_revert = is_valid_commit_id ? menu.addAction(tr("Revert")) : nullptr;
	QAction *a_explore = is_valid_commit_id ? menu.addAction(tr("Explore")) : nullptr;

	QAction *a_reset_head = nullptr;
	#if 0 // 下手に使うと危険なので、とりあえず無効にしておく
	if (is_valid_commit_id && commit->commit_id == m->head_id) {
	a_reset_head = menu.addAction(tr("Reset HEAD"));
	}
	#endif
	QAction *a_properties = addMenuActionProperty(&menu);

	QAction *a = menu.exec(ui->tableWidget_log->viewport()->mapToGlobal(pos) + QPoint(8, -8));
	if (a) {
	if (a == a_copy_id_7_letters) {
	qApp->clipboard()->setText(commit->commit_id.mid(0, 7));
	return;
	}
	if (a == a_copy_id_complete) {
	qApp->clipboard()->setText(commit->commit_id);
	return;
	}
	if (a == a_properties) {
	execCommitPropertyDialog(this, commit);
	return;
	}
	if (a == a_push_upstream) {
	pushSetUpstream(false);
	return;
	}
	if (a == a_edit_comment) {
	commit_amend();
	return;
	}
	if (a == a_checkout) {
	checkout(this, commit);
	return;
	}
	if (a == a_delbranch) {
	deleteBranch(commit);
	return;
	}
	if (a == a_merge) {
	mergeBranch(commit);
	return;
	}
	if (a == a_cherrypick) {
	cherrypick(commit);
	return;
	}
	if (a == a_edit_tags) {
	ui->action_edit_tags->trigger();
	return;
	}
	if (a == a_revert) {
	revertCommit();
	return;
	}
	if (a == a_explore) {
	execCommitExploreWindow(this, commit);
	return;
	}
	if (a == a_reset_head) {
	reopenRepository(false, [](GitPtr g){
	g->reset_head1();
	});
	return;
	}
	}
	}
	}

	void MainWindow::on_listWidget_files_customContextMenuRequested(const QPoint &pos)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QMenu menu;
	QAction *a_delete = menu.addAction(tr("Delete"));
	QAction *a_untrack = menu.addAction(tr("Untrack"));
	QAction *a_history = menu.addAction(tr("History"));
	QAction *a_blame = menu.addAction(tr("Blame"));
	QAction *a_properties = addMenuActionProperty(&menu);

	QPoint pt = ui->listWidget_files->mapToGlobal(pos) + QPoint(8, -8);
	QAction *a = menu.exec(pt);
	if (a) {
	QListWidgetItem *item = ui->listWidget_files->currentItem();
	if (a == a_delete) {
	if (askAreYouSureYouWantToRun("Delete", tr("Delete selected files."))) {
	for_each_selected_files([&](QString const &path){
	g->removeFile(path);
	g->chdirexec([&](){
	QFile(path).remove();
	return true;
	});
	});
	openRepository(false);
	}
	} else if (a == a_untrack) {
	if (askAreYouSureYouWantToRun("Untrack", tr("rm --cached files"))) {
	for_each_selected_files([&](QString const &path){
	g->rm_cached(path);
	});
	openRepository(false);
	}
	} else if (a == a_history) {
	execFileHistory(item);
	} else if (a == a_blame) {
	blame(item);
	} else if (a == a_properties) {
	execFilePropertyDialog(item);
	}
	}
	}

	void MainWindow::on_listWidget_unstaged_customContextMenuRequested(const QPoint &pos)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QList<QListWidgetItem *> items = ui->listWidget_unstaged->selectedItems();
	if (!items.isEmpty()) {
	QMenu menu;
	QAction *a_stage = menu.addAction(tr("Stage"));
	QAction *a_reset_file = menu.addAction(tr("Reset"));
	QAction *a_ignore = menu.addAction(tr("Ignore"));
	QAction *a_delete = menu.addAction(tr("Delete"));
	QAction *a_untrack = menu.addAction(tr("Untrack"));
	QAction *a_history = menu.addAction(tr("History"));
	QAction *a_blame = menu.addAction(tr("Blame"));
	QAction *a_properties = addMenuActionProperty(&menu);
	QPoint pt = ui->listWidget_unstaged->mapToGlobal(pos) + QPoint(8, -8);
	QAction *a = menu.exec(pt);
	if (a) {
	QListWidgetItem *item = ui->listWidget_unstaged->currentItem();
	if (a == a_stage) {
	for_each_selected_files([&](QString const &path){
	g->stage(path);
	});
	updateCurrentFilesList();
	return;
	}
	if (a == a_reset_file) {
	QStringList paths;
	for_each_selected_files([&](QString const &path){
	paths.push_back(path);
	});
	resetFile(paths);
	return;
	}
	if (a == a_ignore) {
	QString gitignore_path = currentWorkingCopyDir() / ".gitignore";
	if (items.size() == 1) {
	QString file = getFilePath(items[0]);
	EditGitIgnoreDialog dlg(this, gitignore_path, file);
	if (dlg.exec() == QDialog::Accepted) {
	QString appending = dlg.text();
	if (!appending.isEmpty()) {
	QString text;

	QString path = gitignore_path;
	path.replace('/', QDir::separator());

	{
	QFile file(path);
	if (file.open(QFile::ReadOnly)) {
	text += QString::fromUtf8(file.readAll());
	}
	}

	size_t n = text.size();
	if (n > 0 && text[(int)n - 1] != '\n') {
	text += '\n'; // 最後に改行を追加
	}

	text += appending + '\n';

	{
	QFile file(path);
	if (file.open(QFile::WriteOnly)) {
	file.write(text.toUtf8());
	}
	}
	updateCurrentFilesList();
	return;
	}
	} else {
	return;
	}
	}

	QString append;
	for_each_selected_files([&](QString const &path){
	if (path == ".gitignore") {
	// skip
	} else {
	append += path + '\n';
	}
	});
	if (TextEditDialog::editFile(this, gitignore_path, ".gitignore", append)) {
	updateCurrentFilesList();
	}
	return;
	}
	if (a == a_delete) {
	if (askAreYouSureYouWantToRun("Delete", "Delete selected files.")) {
	for_each_selected_files([&](QString const &path){
	g->removeFile(path);
	g->chdirexec([&](){
	QFile(path).remove();
	return true;
	});
	});
	openRepository(false);
	}
	return;
	}
	if (a == a_untrack) {
	if (askAreYouSureYouWantToRun("Untrack", "rm --cached")) {
	for_each_selected_files([&](QString const &path){
	g->rm_cached(path);
	});
	openRepository(false);
	}
	return;
	}
	if (a == a_history) {
	execFileHistory(item);
	return;
	}
	if (a == a_blame) {
	blame(item);
	return;
	}
	if (a == a_properties) {
	execFilePropertyDialog(item);
	return;
	}
	}
	}
	}

	void MainWindow::on_listWidget_staged_customContextMenuRequested(const QPoint &pos)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QListWidgetItem *item = ui->listWidget_staged->currentItem();
	if (item) {
	QString path = getFilePath(item);
	QString fullpath = currentWorkingCopyDir() / path;
	if (QFileInfo(fullpath).isFile()) {
	QMenu menu;
	QAction *a_unstage = menu.addAction(tr("Unstage"));
	QAction *a_history = menu.addAction(tr("History"));
	QAction *a_blame = menu.addAction(tr("Blame"));
	QAction *a_properties = addMenuActionProperty(&menu);
	QPoint pt = ui->listWidget_staged->mapToGlobal(pos) + QPoint(8, -8);
	QAction *a = menu.exec(pt);
	if (a) {
	QListWidgetItem *item = ui->listWidget_unstaged->currentItem();
	if (a == a_unstage) {
	g->unstage(path);
	openRepository(false);
	} else if (a == a_history) {
	execFileHistory(item);
	} else if (a == a_blame) {
	blame(item);
	} else if (a == a_properties) {
	execFilePropertyDialog(item);
	}
	}
	}
	}
	}

	bool MainWindow::askAreYouSureYouWantToRun(QString const &title, QString const &command)
	{
	QString message = tr("Are you sure you want to run the following command ?");
	QString text = "%1\n\n%2";
	text = text.arg(message).arg(command);
	return QMessageBox::warning(this, title, text, QMessageBox::Ok, QMessageBox::Cancel) == QMessageBox::Ok;
	}

	void MainWindow::resetFile(QStringList const &paths)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	if (paths.isEmpty()) {
	// nop
	} else {
	QString cmd = "git checkout -- \"%1\"";
	cmd = cmd.arg(paths[0]);
	if (askAreYouSureYouWantToRun(tr("Reset a file"), "> " + cmd)) {
	for (QString const &path : paths) {
	g->resetFile(path);
	}
	openRepository(true);
	}
	}
	}

	void MainWindow::revertAllFiles()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QString cmd = "git reset --hard HEAD";
	if (askAreYouSureYouWantToRun(tr("Revert all files"), "> " + cmd)) {
	g->resetAllFiles();
	openRepository(true);
	}
	}

	QStringList MainWindow::selectedFiles_(QListWidget *listwidget) const
	{
	QStringList list;
	QList<QListWidgetItem *> items = listwidget->selectedItems();
	for (QListWidgetItem *item : items) {
	QString path = getFilePath(item);
	list.push_back(path);
	}
	return list;

	}

	QStringList MainWindow::selectedFiles() const
	{
	QWidget *w = QWidget::focusWidget();
	if (w == ui->listWidget_files) return selectedFiles_(ui->listWidget_files);
	if (w == ui->listWidget_staged) return selectedFiles_(ui->listWidget_staged);
	if (w == ui->listWidget_unstaged) return selectedFiles_(ui->listWidget_unstaged);
	return QStringList();
	}

	void MainWindow::for_each_selected_files(std::function<void(QString const&)> fn)
	{
	for (QString path : selectedFiles()) {
	fn(path);
	}
	}

	void MainWindow::execFileHistory(QString const &path)
	{
	if (path.isEmpty()) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	FileHistoryWindow dlg(this);
	dlg.prepare(g, path);
	dlg.exec();
	}

	void MainWindow::execFileHistory(QListWidgetItem *item)
	{
	if (item) {
	QString path = getFilePath(item);
	if (!path.isEmpty()) {
	execFileHistory(path);
	}
	}
	}

	void MainWindow::addWorkingCopyDir(QString dir, QString name, bool open)
	{
	if (dir.endsWith(".git")) {
	int i = dir.size();
	if (i > 4) {
	ushort c = dir.utf16()[i - 5];
	if (c == '/' \|\| c == '\\') {
	dir = dir.mid(0, i - 5);
	}
	}
	}

	if (!Git::isValidWorkingCopy(dir)) {
	qDebug() << "Invalid working dir: " + dir;
	return;
	}

	if (name.isEmpty()) {
	name = makeRepositoryName(dir);
	}

	RepositoryItem item;
	item.local_dir = dir;
	item.name = name;
	saveRepositoryBookmark(item);

	if (open) {
	m->current_repo = item;
	GitPtr g = git(item.local_dir);
	openRepository_(g);
	}
	}

	void MainWindow::on_action_open_existing_working_copy_triggered()
	{
	QString dir = defaultWorkingDir();
	dir = QFileDialog::getExistingDirectory(this, tr("Add existing working copy"), dir);
	addWorkingCopyDir(dir, false);
	}

	void MainWindow::on_action_view_refresh_triggered()
	{
	openRepository(true);
	}

	void MainWindow::on_tableWidget_log_currentItemChanged(QTableWidgetItem * /current/, QTableWidgetItem * /previous/)
	{
	clearFileList();

	QTableWidgetItem *item = ui->tableWidget_log->item(selectedLogIndex(), 0);
	if (!item) return;

	int row = item->data(IndexRole).toInt();
	if (row < (int)m->logs.size()) {
	updateStatusBarText();
	m->update_files_list_counter = 200;
	}
	}

	void MainWindow::on_toolButton_stage_clicked()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->stage(selectedFiles());
	updateCurrentFilesList();
	}

	void MainWindow::on_toolButton_unstage_clicked()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->unstage(selectedFiles());
	updateCurrentFilesList();
	}

	void MainWindow::on_toolButton_select_all_clicked()
	{
	if (ui->listWidget_unstaged->count() > 0) {
	ui->listWidget_unstaged->setFocus();
	ui->listWidget_unstaged->selectAll();
	} else if (ui->listWidget_staged->count() > 0) {
	ui->listWidget_staged->setFocus();
	ui->listWidget_staged->selectAll();
	}
	}

	void MainWindow::on_toolButton_commit_clicked()
	{
	ui->action_commit->trigger();
	}

	bool MainWindow::editFile(const QString &path, QString const &title)
	{
	return TextEditDialog::editFile(this, path, title);
	}

	struct Task {
	int index = 0;
	int parent = 0;
	Task()
	{
	}
	Task(int index, int parent)
	: index(index)
	, parent(parent)
	{
	}
	};

	struct Element {
	int depth = 0;
	std::vector<int> indexes;
	};

	void MainWindow::updateCommitGraph()
	{
	const size_t LogCount = m->logs.size();
	// 樹形図情報を構築する
	if (LogCount > 0) {
	auto LogItem = [&](size_t i)->Git::CommitItem &{ return m->logs[i]; };
	enum { // 有向グラフを構築するあいだ CommitItem::marker_depth をフラグとして使用する
	UNKNOWN = 0,
	KNOWN = 1,
	};
	for (Git::CommitItem &item : m->logs) {
	item.marker_depth = UNKNOWN;
	}
	// コミットハッシュを検索して、親コミットのインデックスを求める
	for (size_t i = 0; i < LogCount; i++) {
	Git::CommitItem *item = &LogItem(i);
	item->parent_lines.clear();
	if (item->parent_ids.empty()) {
	item->resolved = true;
	} else {
	for (int j = 0; j < item->parent_ids.size(); j++) { // 親の数だけループ
	QString const &parent_id = item->parent_ids[j]; // 親のハッシュ値
	for (size_t k = i + 1; k < LogCount; k++) { // 親を探す
	if (LogItem(k).commit_id == parent_id) { // ハッシュ値が一致したらそれが親
	item->parent_lines.push_back(k); // インデックス値を記憶
	LogItem(k).has_child = true;
	LogItem(k).marker_depth = KNOWN;
	item->resolved = true;
	break;
	}
	}
	}
	}
	}
	std::vector<Element> elements; // 線分リスト
	{ // 線分リストを作成する
	std::deque<Task> tasks; // 未処理タスクリスト
	{
	for (size_t i = 0; i < LogCount; i++) {
	Git::CommitItem *item = &LogItem(i);
	if (item->marker_depth == UNKNOWN) {
	int n = item->parent_lines.size(); // 最初のコミットアイテム
	for (int j = 0; j < n; j++) {
	tasks.push_back(Task(i, j)); // タスクを追加
	}
	}
	item->marker_depth = UNKNOWN;
	}
	}
	while (!tasks.empty()) { // タスクが残っているならループ
	Element e;
	Task task;
	{ // 最初のタスクを取り出す
	task = tasks.front();
	tasks.pop_front();
	}
	e.indexes.push_back(task.index); // 先頭のインデックスを追加
	int index = LogItem(task.index).parent_lines[task.parent].index; // 開始インデックス
	while (index > 0 && (size_t)index < LogCount) { // 最後に到達するまでループ
	e.indexes.push_back(index); // インデックスを追加
	int n = LogItem(index).parent_lines.size(); // 親の数
	if (n == 0) break; // 親がないなら終了
	Git::CommitItem *item = &LogItem(index);
	if (item->marker_depth == KNOWN) break; // 既知のアイテムに到達したら終了
	item->marker_depth = KNOWN; // 既知のアイテムにする
	for (int i = 1; i < n; i++) {
	tasks.push_back(Task(index, i)); // タスク追加
	}
	index = LogItem(index).parent_lines[0].index; // 次の親（親リストの先頭の要素）
	}
	if (e.indexes.size() >= 2) {
	elements.push_back(e);
	}
	}
	}
	// 線情報をクリア
	for (Git::CommitItem &item : m->logs) {
	item.marker_depth = -1;
	item.parent_lines.clear();
	}
	// マークと線の深さを決める
	if (!elements.empty()) {
	{ // 優先順位を調整する
	std::sort(elements.begin(), elements.end(), [](Element const &left, Element const &right){
	int i = 0;
	{ // 長いものを優先して左へ
	int l = left.indexes.back() - left.indexes.front();
	int r = right.indexes.back() - right.indexes.front();
	i = r - l; // 降順
	}
	if (i == 0) {
	// コミットが新しいものを優先して左へ
	int l = left.indexes.front();
	int r = right.indexes.front();
	i = l - r; // 昇順
	}
	return i < 0;
	});
	// 子の無いブランチ（タグ等）が複数連続しているとき、古いコミットを右に寄せる
	{
	for (size_t i = 0; i + 1 < elements.size(); i++) {
	Element *e = &elements[i];
	int index1 = e->indexes.front();
	if (index1 > 0 && !LogItem(index1).has_child) { // 子がない
	// 新しいコミットを探す
	for (size_t j = i + 1; j < elements.size(); j++) { // 現在位置より後ろを探す
	Element *f = &elements[j];
	int index2 = f->indexes.front();
	if (index1 == index2 + 1) { // 一つだけ新しいコミット
	Element t = std::move(*f);
	elements.erase(elements.begin() + j); // 移動元を削除
	elements.insert(elements.begin() + i, std::move(t)); // 現在位置に挿入
	}
	}
	// 古いコミットを探す
	size_t j = 0;
	while (j < i) { // 現在位置より前を探す
	Element *f = &elements[j];
	int index2 = f->indexes.front();
	if (index1 + 1 == index2) { // 一つだけ古いコミット
	Element t = std::move(*f);
	elements.erase(elements.begin() + j); // 移動元を削除
	elements.insert(elements.begin() + i, std::move(t)); // 現在位置の次に挿入
	index1 = index2;
	f = e;
	} else {
	j++;
	}
	}
	}
	}
	}
	}
	{ // 最初の線は深さを0にする
	Element *e = &elements.front();
	for (size_t i = 0; i < e->indexes.size(); i++) {
	int index = e->indexes[i];
	LogItem(index).marker_depth = 0; // マークの深さを設定
	e->depth = 0; // 線の深さを設定
	}
	}
	// 最初以外の線分の深さを決める
	for (size_t i = 1; i < elements.size(); i++) { // 最初以外をループ
	Element *e = &elements[i];
	int depth = 1;
	while (1) { // 失敗したら繰り返し
	for (size_t j = 0; j < i; j++) { // 既に処理済みの線を調べる
	Element const *f = &elements[j]; // 検査対象
	if (e->indexes.size() == 2) { // 二つしかない場合
	int from = e->indexes[0]; // 始点
	int to = e->indexes[1]; // 終点
	if (LogItem(from).has_child) {
	for (size_t k = 0; k + 1 < f->indexes.size(); k++) { // 検査対象の全ての線分を調べる
	int curr = f->indexes[k];
	int next = f->indexes[k + 1];
	if (from > curr && to == next) { // 決定済みの線に直結できるか判定
	e->indexes.back() = from + 1; // 現在の一行下に直結する
	e->depth = elements[j].depth; // 接続先の深さ
	goto DONE; // 決定
	}
	}
	}
	}
	if (depth == f->depth) { // 同じ深さ
	if (e->indexes.back() > f->indexes.front() && e->indexes.front() < f->indexes.back()) { // 重なっている
	goto FAIL; // この深さには線を置けないのでやりなおし
	}
	}
	}
	for (size_t j = 0; j < e->indexes.size(); j++) {
	int index = e->indexes[j];
	Git::CommitItem *item = &LogItem(index);
	if (j == 0 && item->has_child) { // 最初のポイントで子がある場合
	// nop
	} else if ((j > 0 && j + 1 < e->indexes.size()) \|\| item->marker_depth < 0) { // 最初と最後以外、または、未確定の場合
	item->marker_depth = depth; // マークの深さを設定
	}
	}
	e->depth = depth; // 深さを決定
	goto DONE; // 決定
	FAIL:;
	depth++; // 一段深くして再挑戦
	}
	DONE:;
	}
	// 線情報を生成する
	for (size_t i = 0; i < elements.size(); i++) {
	Element const &e = elements[i];
	auto ColorNumber = [&](){ return e.depth; };
	size_t count = e.indexes.size();
	for (size_t j = 0; j + 1 < count; j++) {
	int curr = e.indexes[j];
	int next = e.indexes[j + 1];
	TreeLine line(next, e.depth);
	line.color_number = ColorNumber();
	line.bend_early = (j + 2 < count \|\| !LogItem(next).resolved);
	if (j + 2 == count) {
	if (count > 2 \|\| !LogItem(curr).has_child) { // 直結ではない、または、子がない
	line.depth = LogItem(next).marker_depth; // 合流する先のアイテムの深さと同じにする
	}
	}
	LogItem(curr).parent_lines.push_back(line); // 線を追加
	}
	}
	} else {
	if (LogCount == 1) { // コミットが一つだけ
	LogItem(0).marker_depth = 0;
	}
	}
	}
	}

	QList<Git::Tag> MainWindow::findTag(QString const &id)
	{
	auto it = m->tag_map.find(id);
	if (it != m->tag_map.end()) {
	return it->second;
	}
	return QList<Git::Tag>();
	}

	void MainWindow::on_action_edit_global_gitconfig_triggered()
	{
	QString dir = QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
	QString path = dir / ".gitconfig";
	editFile(path, ".gitconfig");
	}

	void MainWindow::on_action_edit_git_config_triggered()
	{
	QString dir = currentWorkingCopyDir();
	QString path = dir / ".git/config";
	editFile(path, ".git/config");
	}

	void MainWindow::on_action_edit_gitignore_triggered()
	{
	QString dir = currentWorkingCopyDir();
	QString path = dir / ".gitignore";
	if (editFile(path, ".gitignore")) {
	updateCurrentFilesList();
	}
	}

	int MainWindow::selectedLogIndex() const
	{
	int i = ui->tableWidget_log->currentRow();
	if (i >= 0 && i < (int)m->logs.size()) {
	return i;
	}
	return -1;
	}

	Git::CommitItem const *MainWindow::selectedCommitItem() const
	{
	int i = selectedLogIndex();
	return commitItem(i);
	}

	Git::Object MainWindow::cat_file_(GitPtr g, QString const &id)
	{
	if (isValidWorkingCopy(g)) {
	QString path_prefix = PATH_PREFIX;
	if (id.startsWith(path_prefix)) {
	QString path = g->workingRepositoryDir();
	path = path / id.mid(path_prefix.size());
	QFile file(path);
	if (file.open(QFile::ReadOnly)) {
	Git::Object obj;
	obj.content = file.readAll();
	return obj;
	}
	} else if (Git::isValidID(id)) {
	return m->objcache.catFile(id);;
	}
	}
	return Git::Object();
	}

	Git::Object MainWindow::cat_file(QString const &id)
	{
	return cat_file_(git(), id);
	}

	void MainWindow::updateDiffView(QListWidgetItem *item)
	{
	clearDiffView();

	m->last_selected_file_item = item;

	if (!item) return;

	int idiff = indexOfDiff(item);
	if (idiff >= 0 && idiff < m->diff.result.size()) {
	Git::Diff const &diff = m->diff.result[idiff];
	QString key = GitDiff::makeKey(diff);
	auto it = m->diff_cache.find(key);
	if (it != m->diff_cache.end()) {
	int row = ui->tableWidget_log->currentRow();
	bool uncommited = (row >= 0 && row < (int)m->logs.size() && Git::isUncommited(m->logs[row]));
	ui->widget_diff_view->updateDiffView(it->second, uncommited);
	}
	}
	}

	void MainWindow::updateDiffView()
	{
	updateDiffView(m->last_selected_file_item);
	}

	void MainWindow::updateUnstagedFileCurrentItem()
	{
	updateDiffView(ui->listWidget_unstaged->currentItem());
	}

	void MainWindow::updateStagedFileCurrentItem()
	{
	updateDiffView(ui->listWidget_staged->currentItem());
	}

	void MainWindow::on_listWidget_unstaged_currentRowChanged(int /currentRow/)
	{
	updateUnstagedFileCurrentItem();
	}

	void MainWindow::on_listWidget_staged_currentRowChanged(int /currentRow/)
	{
	updateStagedFileCurrentItem();
	}

	void MainWindow::on_listWidget_files_currentRowChanged(int /currentRow/)
	{
	updateDiffView(ui->listWidget_files->currentItem());
	}

	void MainWindow::logGitVersion()
	{
	GitPtr g = git();
	QString s = g->version();
	if (!s.isEmpty()) {
	s += '\n';
	writeLog(s);
	}
	}

	bool MainWindow::checkExecutable(QString const &path)
	{
	if (QFileInfo(path).isExecutable()) {
	return true;
	}
	QString text = "The specified program '%1' is not executable.\n";
	text = text.arg(path);
	writeLog(text);
	return false;
	}

	void MainWindow::internalSetCommand(QString const &path, bool save, QString const &name, QString *out)
	{
	if (!path.isEmpty() && checkExecutable(path)) {
	if (save) {
	MySettings s;
	s.beginGroup("Global");
	s.setValue(name, path);
	s.endGroup();
	}
	*out = path;
	} else {
	*out = QString();
	}
	}

	void MainWindow::setGitCommand(QString const &path, bool save)
	{
	internalSetCommand(path, save, "GitCommand", &m->gcx.git_command);
	}

	void MainWindow::setFileCommand(QString const &path, bool save)
	{
	internalSetCommand(path, save, "FileCommand", &global->file_command);
	}

	void MainWindow::setGpgCommand(QString const &path, bool save)
	{
	internalSetCommand(path, save, "GpgCommand", &global->gpg_command);
	if (!global->gpg_command.isEmpty()) {
	GitPtr g = git();
	g->configGpgProgram(global->gpg_command, true);
	}
	}


	#ifdef Q_OS_WIN
	QString getWin32HttpProxy();
	#endif

	void MainWindow::initNetworking()
	{
	std::string http_proxy;
	std::string https_proxy;
	if (appsettings()->proxy_type == "auto") {
	#ifdef Q_OS_WIN
	http_proxy = misc::makeProxyServerURL(getWin32HttpProxy().toStdString());
	#else
	auto getienv = [](std::string const &name)->char const *{
	char **p = environ;
	while (*p) {
	if (strncasecmp(*p, name.c_str(), name.size()) == 0) {
	char const e = p + name.size();
	if (*e == '=') {
	return e + 1;
	}
	}
	p++;
	}
	return nullptr;
	};
	char const *p;
	p = getienv("http_proxy");
	if (p) {
	http_proxy = misc::makeProxyServerURL(std::string(p));
	}
	p = getienv("https_proxy");
	if (p) {
	https_proxy = misc::makeProxyServerURL(std::string(p));
	}
	#endif
	} else if (appsettings()->proxy_type == "manual") {
	http_proxy = appsettings()->proxy_server.toStdString();
	}
	m->webcx.set_http_proxy(http_proxy);
	m->webcx.set_https_proxy(https_proxy);
	}



	QStringList MainWindow::whichCommand_(QString const &cmdfile1, const QString &cmdfile2)
	{
	QStringList list;

	if (!cmdfile1.isEmpty()){
	std::vector<std::string> vec;
	FileUtil::which(cmdfile1.toStdString(), &vec);
	for (std::string const &s : vec) {
	list.push_back(QString::fromStdString(s));
	}
	}
	if (!cmdfile2.isEmpty()){
	std::vector<std::string> vec;
	FileUtil::which(cmdfile2.toStdString(), &vec);
	for (std::string const &s : vec) {
	list.push_back(QString::fromStdString(s));
	}
	}

	return list;
	}

	QString MainWindow::selectCommand_(QString const &cmdname, QStringList const &cmdfiles, QStringList const &list, QString path, std::function<void(QString const &)> callback)
	{
	QString window_title = tr("Select %1 command");
	window_title = window_title.arg(cmdfiles.front());

	SelectCommandDialog dlg(this, cmdname, cmdfiles, path, list);
	dlg.setWindowTitle(window_title);
	if (dlg.exec() == QDialog::Accepted) {
	path = dlg.selectedFile();
	path = misc::normalizePathSeparator(path);
	QFileInfo info(path);
	if (info.isExecutable()) {
	callback(path);
	return path;
	}
	}
	return QString();
	}

	QString MainWindow::selectCommand_(QString const &cmdname, QString const &cmdfile, QStringList const &list, QString path, std::function<void(QString const &)> callback)
	{
	QStringList cmdfiles;
	cmdfiles.push_back(cmdfile);
	return selectCommand_(cmdname, cmdfiles, list, path, callback);
	}

	#ifdef Q_OS_WIN
	#define GIT_COMMAND "git.exe"
	#define FILE_COMMAND "file.exe"
	#define GPG_COMMAND "gpg.exe"
	#define GPG2_COMMAND "gpg2.exe"
	#else
	#define GIT_COMMAND "git"
	#define FILE_COMMAND "file"
	#define GPG_COMMAND "gpg"
	#define GPG2_COMMAND "gpg2"
	#endif

	QString MainWindow::selectGitCommand(bool save)
	{
	char const *exe = GIT_COMMAND;

	QString path = m->gcx.git_command;

	auto fn = [&](QString const &path){
	setGitCommand(path, save);
	};

	QStringList list = whichCommand_(exe);
	#ifdef Q_OS_WIN
	{
	QStringList newlist;
	QString suffix1 = "\\bin\\" GIT_COMMAND;
	QString suffix2 = "\\cmd\\" GIT_COMMAND;
	for (QString const &s : list) {
	newlist.push_back(s);
	auto DoIt = [&](QString const &suffix){
	if (s.endsWith(suffix)) {
	QString t = s.mid(0, s.size() - suffix.size());
	QString t1 = t + "\\mingw64\\bin\\" GIT_COMMAND;
	if (misc::isExecutable(t1)) newlist.push_back(t1);
	QString t2 = t + "\\mingw\\bin\\" GIT_COMMAND;
	if (misc::isExecutable(t2)) newlist.push_back(t2);
	}
	};
	DoIt(suffix1);
	DoIt(suffix2);
	}
	std::sort(newlist.begin(), newlist.end());
	auto end = std::unique(newlist.begin(), newlist.end());
	list.clear();
	for (auto it = newlist.begin(); it != end; it++) {
	list.push_back(*it);
	}
	}
	#endif
	return selectCommand_("Git", exe, list, path, fn);
	}

	QString MainWindow::selectFileCommand(bool save)
	{
	char const *exe = FILE_COMMAND;

	QString path = global->file_command;

	auto fn = [&](QString const &path){
	setFileCommand(path, save);
	};

	QStringList list = whichCommand_(exe);

	#ifdef Q_OS_WIN
	QString dir = misc::getApplicationDir();
	QString path1 = dir / FILE_COMMAND;
	QString path2;
	int i = dir.lastIndexOf('/');
	int j = dir.lastIndexOf('\\');
	if (i < j) i = j;
	if (i > 0) {
	path2 = dir.mid(0, i) / FILE_COMMAND;
	}
	path1 = misc::normalizePathSeparator(path1);
	path2 = misc::normalizePathSeparator(path2);
	if (misc::isExecutable(path1)) list.push_back(path1);
	if (misc::isExecutable(path2)) list.push_back(path2);
	#endif

	return selectCommand_("File", exe, list, path, fn);
	}

	QString MainWindow::selectGpgCommand(bool save)
	{
	QString path = global->gpg_command;

	auto fn = [&](QString const &path){
	setGpgCommand(path, save);
	};

	QStringList list = whichCommand_(GPG_COMMAND, GPG2_COMMAND);

	QStringList cmdlist;
	cmdlist.push_back(GPG_COMMAND);
	cmdlist.push_back(GPG2_COMMAND);
	return selectCommand_("GPG", cmdlist, list, path, fn);
	}

	void MainWindow::checkUser()
	{
	Git g(m->gcx, QString());
	while (1) {
	Git::User user = g.getUser(Git::Source::Global);
	if (!user.name.isEmpty() && !user.email.isEmpty()) {
	return; // ok
	}
	if (!execSetGlobalUserDialog()) {
	return;
	}
	}
	}

	void MainWindow::dragEnterEvent(QDragEnterEvent *event)
	{
	if (QApplication::modalWindow()) return;

	if (event->mimeData()->hasUrls()) {
	event->acceptProposedAction();
	event->accept();
	}
	}

	void MainWindow::timerEvent(QTimerEvent *)
	{
	bool running = m->pty_process.isRunning();
	if (ui->toolButton_stop_process->isEnabled() != running) {
	ui->toolButton_stop_process->setEnabled(running);
	ui->action_stop_process->setEnabled(running);
	setNetworkingCommandsEnabled(!running);
	}
	if (!running) {
	m->interaction_mode = InteractionMode::None;
	}

	while (1) {
	char tmp[1024];
	int len = m->pty_process.readOutput(tmp, sizeof(tmp));
	if (len < 1) break;
	writeLog(tmp, len);
	}
	}

	void MainWindow::keyPressEvent(QKeyEvent *event)
	{
	if (focusWidget() == ui->widget_log) {
	int c = event->key();

	auto write_char = [&](char c){
	if (m->pty_process.isRunning()) {
	m->pty_process.writeInput(&c, 1);
	}
	};

	auto write_text = [&](QString const &str){
	std::string s = str.toStdString();
	for (int i = 0; i < (int)s.size(); i++) {
	write_char(s[i]);
	}
	};

	if (c == Qt::Key_Return \|\| c == Qt::Key_Enter) {
	write_char('\n');
	} else {
	QString text = event->text();
	write_text(text);
	}
	}
	}

	bool MainWindow::saveByteArrayAs(QByteArray const &ba, QString const &dstpath)
	{
	QFile file(dstpath);
	if (file.open(QFile::WriteOnly)) {
	file.write(ba);
	file.close();
	return true;
	} else {
	QString msg = "Failed to open the file '%1' for write";
	msg = msg.arg(dstpath);
	qDebug() << msg;
	}
	return false;
	}

	bool MainWindow::saveFileAs(QString const &srcpath, QString const &dstpath)
	{
	QFile f(srcpath);
	if (f.open(QFile::ReadOnly)) {
	QByteArray ba = f.readAll();
	if (saveByteArrayAs(ba, dstpath)) {
	return true;
	}
	} else {
	QString msg = "Failed to open the file '%1' for read";
	msg = msg.arg(srcpath);
	qDebug() << msg;
	}
	return false;
	}

	bool MainWindow::saveBlobAs(QString const &id, QString const &dstpath)
	{
	Git::Object obj = cat_file(id);
	if (!obj.content.isEmpty()) {
	if (saveByteArrayAs(obj.content, dstpath)) {
	return true;
	}
	} else {
	QString msg = "Failed to get the content of the object '%1'";
	msg = msg.arg(id);
	qDebug() << msg;
	}
	return false;
	}

	bool MainWindow::saveAs(QString const &id, QString const &dstpath)
	{
	if (id.startsWith(PATH_PREFIX)) {
	return saveFileAs(id.mid(1), dstpath);
	} else {
	return saveBlobAs(id, dstpath);
	}
	}

	QString MainWindow::saveAsTemp(QString const &id)
	{
	QString path = newTempFilePath();
	saveAs(id, path);
	return path;
	}

	void MainWindow::on_action_edit_settings_triggered()
	{
	SettingsDialog dlg(this);
	if (dlg.exec() == QDialog::Accepted) {
	ApplicationSettings const &newsettings = dlg.settings();
	m->appsettings = newsettings;
	setGitCommand(appsettings()->git_command, false);
	setFileCommand(appsettings()->file_command, false);
	setGpgCommand(appsettings()->gpg_command, false);
	}
	}

	bool MainWindow::git_callback(void cookie, char const ptr, int len)
	{
	MainWindow mw = (MainWindow )cookie;
	mw->writeLog(ptr, len);
	return true;
	}

	void MainWindow::clone()
	{
	if (!isRemoteOnline()) return;

	QString url;
	QString dir = defaultWorkingDir();
	while (1) {
	CloneDialog dlg(this, url, dir);
	if (dlg.exec() != QDialog::Accepted) {
	return;
	}

	url = dlg.url();
	dir = dlg.dir();

	if (dlg.action() == CloneDialog::Action::Clone) {
	// 既存チェック

	QFileInfo info(dir);
	if (info.isFile()) {
	QString msg = dir + "\n\n" + tr("A file with same name already exists");
	QMessageBox::warning(this, tr("Clone"), msg);
	continue;
	}
	if (info.isDir()) {
	QString msg = dir + "\n\n" + tr("A folder with same name already exists");
	QMessageBox::warning(this, tr("Clone"), msg);
	continue;
	}

	// クローン先ディレクトリを求める

	Git::CloneData clone_data = Git::preclone(url, dir);

	// クローン先ディレクトリの存在チェック

	QString basedir = misc::normalizePathSeparator(clone_data.basedir);
	if (!QFileInfo(basedir).isDir()) {
	int i = basedir.indexOf('/');
	int j = basedir.indexOf('\\');
	if (i < j) i = j;
	if (i < 0) {
	QString msg = basedir + "\n\n" + tr("Invalid folder");
	QMessageBox::warning(this, tr("Clone"), msg);
	continue;
	}

	QString msg = basedir + "\n\n" + tr("No such folder. Create it now ?");
	if (QMessageBox::warning(this, tr("Clone"), msg, QMessageBox::Ok, QMessageBox::Cancel) != QMessageBox::Ok) {
	continue;
	}

	// ディレクトリを作成

	QString base = basedir.mid(0, i + 1);
	QString sub = basedir.mid(i + 1);
	QDir(base).mkpath(sub);
	}

	m->temp_repo.local_dir = dir;
	m->temp_repo.local_dir.replace('\\', '/');
	m->temp_repo.name = makeRepositoryName(dir);

	GitPtr g = git(QString());
	m->pty_condition = PtyCondition::Clone;
	m->pty_process_ok = true;
	g->clone(clone_data, &m->pty_process);

	} else if (dlg.action() == CloneDialog::Action::AddExisting) {
	addWorkingCopyDir(dir, true);
	}

	return; // done
	}
	}

	void MainWindow::onCloneCompleted(bool success)
	{
	if (success) {
	saveRepositoryBookmark(m->temp_repo);
	m->current_repo = m->temp_repo;
	openRepository(true);
	}
	}

	void MainWindow::onPtyProcessCompleted()
	{
	switch (m->pty_condition) {
	case PtyCondition::Clone:
	onCloneCompleted(m->pty_process_ok);
	break;
	}
	m->pty_condition = PtyCondition::None;
	}

	void MainWindow::on_action_clone_triggered()
	{
	clone();
	}

	void MainWindow::on_action_about_triggered()
	{
	AboutDialog dlg(this);
	dlg.exec();
	}

	void MainWindow::on_toolButton_clone_clicked()
	{
	ui->action_clone->trigger();
	}

	void MainWindow::on_toolButton_fetch_clicked()
	{
	ui->action_fetch->trigger();
	}

	void MainWindow::clearRepoFilter()
	{
	ui->lineEdit_filter->clear();
	}

	void MainWindow::appendCharToRepoFilter(ushort c)
	{
	if (QChar(c).isLetter()) {
	c = QChar(c).toLower().unicode();
	}
	ui->lineEdit_filter->setText(m->repository_filter_text + c);
	}

	void MainWindow::backspaceRepoFilter()
	{
	QString s = m->repository_filter_text;
	int n = s.size();
	if (n > 0) {
	s = s.mid(0, n - 1);
	}
	ui->lineEdit_filter->setText(s);
	}

	void MainWindow::on_lineEdit_filter_textChanged(const QString &text)
	{
	m->repository_filter_text = text;
	updateRepositoriesList();
	}

	void MainWindow::on_toolButton_erase_filter_clicked()
	{
	clearRepoFilter();
	ui->lineEdit_filter->setFocus();
	}

	void MainWindow::deleteTags(QStringList const &tagnames)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	int row = ui->tableWidget_log->currentRow();

	if (!tagnames.isEmpty()) {
	reopenRepository(false, [&](GitPtr g){
	for (QString const &name : tagnames) {
	g->delete_tag(name, true);
	}
	});
	}

	ui->tableWidget_log->selectRow(row);
	}

	void MainWindow::deleteTags(const Git::CommitItem &commit)
	{
	auto it = m->tag_map.find(commit.commit_id);
	if (it != m->tag_map.end()) {
	QStringList names;
	QList<Git::Tag> const &tags = it->second;
	for (Git::Tag const &tag : tags) {
	names.push_back(tag.name);
	}
	deleteTags(names);
	}
	}



	void MainWindow::revertCommit()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	Git::CommitItem const *commit = selectedCommitItem();
	if (commit) {
	g->revert(commit->commit_id);
	openRepository(false);
	}
	}

	bool MainWindow::addTag(QString const &name)
	{
	if (name.isEmpty()) return false;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return false;

	QString commit_id;

	Git::CommitItem const *commit = selectedCommitItem();
	if (commit && !commit->commit_id.isEmpty()) {
	commit_id = commit->commit_id;
	}

	if (!Git::isValidID(commit_id)) return false;

	int row = ui->tableWidget_log->currentRow();

	bool ok = false;
	reopenRepository(false, [&](GitPtr g){
	ok = g->tag(name, commit_id);
	});

	ui->tableWidget_log->selectRow(row);
	return ok;
	}

	void MainWindow::on_action_tag_push_all_triggered()
	{
	reopenRepository(false, [&](GitPtr g){
	g->push(true);
	});
	}

	QString MainWindow::tempfileHeader() const
	{
	QString name = "jp_soramimi_Guitar_%1_";
	return name.arg(QApplication::applicationPid());
	}

	void MainWindow::deleteTempFiles()
	{
	QString dir = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
	QString name = tempfileHeader();
	QDirIterator it(dir, { name + "*" });
	while (it.hasNext()) {
	QString path = it.next();
	QFile::remove(path);
	}
	}

	QString MainWindow::newTempFilePath()
	{
	QString tmpdir = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
	QString path = tmpdir / tempfileHeader() + QString::number(m->temp_file_counter);
	m->temp_file_counter++;
	return path;
	}

	QString MainWindow::determinFileType_(QString const &path, bool mime, std::function<void(QString const &cmd, QByteArray *ba)> callback) const
	{
	const_cast<MainWindow *>(this)->checkFileCommand();
	return misc::determinFileType(global->file_command, path, mime, callback);
	}

	QString MainWindow::determinFileType(QString const &path, bool mime)
	{
	return determinFileType_(path, mime, [](QString const &cmd, QByteArray *ba){
	misc2::runCommand(cmd, ba);
	});
	}

	QString MainWindow::determinFileType(QByteArray in, bool mime)
	{
	if (in.isEmpty()) return QString();

	if (in.size() > 10) {
	if (memcmp(in.data(), "\x1f\x8b\x08", 3) == 0) { // gzip
	QBuffer buf;
	MemoryReader reader(in.data(), in.size());
	reader.open(MemoryReader::ReadOnly);
	buf.open(QBuffer::WriteOnly);
	gunzip z;
	z.set_maximul_size(100000);
	z.decode(&reader, &buf);
	in = buf.buffer();
	}
	}

	// ファイル名を "-" にすると、リダイレクトで標準入力へ流し込める。
	return determinFileType_("-", mime, [&](QString const &cmd, QByteArray *ba){
	int r = misc2::runCommand(cmd, &in, ba);
	if (r != 0) {
	ba->clear();
	}
	});
	}

	void MainWindow::on_tableWidget_log_itemDoubleClicked(QTableWidgetItem *)
	{
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit) {
	execCommitPropertyDialog(this, commit);
	}
	}

	void MainWindow::execFilePropertyDialog(QListWidgetItem *item)
	{
	if (item) {
	QString path = getFilePath(item);
	QString id = getObjectID(item);
	FilePropertyDialog dlg(this);
	dlg.exec(this, path, id);
	}
	}

	void MainWindow::on_listWidget_unstaged_itemDoubleClicked(QListWidgetItem * item)
	{
	execFilePropertyDialog(item);
	}

	void MainWindow::on_listWidget_staged_itemDoubleClicked(QListWidgetItem *item)
	{
	execFilePropertyDialog(item);
	}

	void MainWindow::on_listWidget_files_itemDoubleClicked(QListWidgetItem *item)
	{
	execFilePropertyDialog(item);
	}

	QListWidgetItem *MainWindow::currentFileItem() const
	{
	QListWidget *listwidget = nullptr;
	if (ui->stackedWidget->currentWidget() == ui->page_uncommited) {
	QWidget *w = qApp->focusWidget();
	if (w == ui->listWidget_unstaged) {
	listwidget = ui->listWidget_unstaged;
	} else if (w == ui->listWidget_staged) {
	listwidget = ui->listWidget_staged;
	}
	} else {
	listwidget = ui->listWidget_files;
	}
	if (listwidget) {
	return listwidget->currentItem();
	}
	return nullptr;
	}

	QPixmap MainWindow::getTransparentPixmap()
	{
	if (m->transparent_pixmap.isNull()) {
	m->transparent_pixmap = QPixmap(":/image/transparent.png");
	}
	return m->transparent_pixmap;
	}

	QString MainWindow::getCommitIdFromTag(QString const &tag)
	{
	return m->objcache.getCommitIdFromTag(tag);
	}

	bool MainWindow::isValidRemoteURL(const QString &url)
	{
	if (url.indexOf('\"') >= 0) {
	return false;
	}
	stopPtyProcess();
	GitPtr g = git(QString());
	QString cmd = "ls-remote \"%1\" HEAD";
	bool f = g->git(cmd.arg(url), false, false, &m->pty_process);
	{
	QTime time;
	time.start();
	while (!m->pty_process.wait(10)) {
	if (time.elapsed() > 10000) {
	f = false;
	break;
	}
	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
	}
	stopPtyProcess();
	}
	QString line = g->resultText().trimmed();
	QString head;
	int i = line.indexOf('\t');
	if (i == GIT_ID_LENGTH) {
	QString id = line.mid(0, i);
	QString name = line.mid(i + 1);
	qDebug() << id << name;
	if (name == "HEAD" && Git::isValidID(id)) {
	head = id;
	}
	}
	if (f) {
	qDebug() << "This is a valid repository.";
	if (head.isEmpty()) {
	qDebug() << "But HEAD not found";
	}
	return true;
	} else {
	qDebug() << "It is not a repository.";
	}
	return false;
	}

	bool MainWindow::testRemoteRepositoryValidity(QString const &url)
	{
	bool ok;
	{
	OverrideWaitCursor;
	ok = isValidRemoteURL(url);
	}

	QString pass = tr("The URL is a valid repository");
	QString fail = tr("Failed to access the URL");

	QString text = "%1\n\n%2";
	text = text.arg(url).arg(ok ? pass : fail);

	QString title = tr("Remote Repository");

	if (ok) {
	QMessageBox::information(this, title, text);
	} else {
	QMessageBox::critical(this, title, text);
	}

	return ok;
	}

	bool MainWindow::execSetGlobalUserDialog()
	{
	SetGlobalUserDialog dlg(this);
	if (dlg.exec() == QDialog::Accepted) {
	GitPtr g = git();
	Git::User user = dlg.user();
	g->setUser(user, true);
	updateWindowTitle(g);
	return true;
	}
	return false;
	}

	void MainWindow::execSetUserDialog(Git::User const &global_user, Git::User const &repo_user, QString const &reponame)
	{
	SetUserDialog dlg(this, global_user, repo_user, reponame);
	if (dlg.exec() == QDialog::Accepted) {
	GitPtr g = git();
	Git::User user = dlg.user();
	if (dlg.isGlobalChecked()) {
	g->setUser(user, true);
	}
	if (dlg.isRepositoryChecked()) {
	g->setUser(user, false);
	}
	updateWindowTitle(g);
	}
	}

	void MainWindow::on_action_set_config_user_triggered()
	{
	Git::User global_user;
	Git::User repo_user;
	GitPtr g = git();
	if (isValidWorkingCopy(g)) {
	repo_user = g->getUser(Git::Source::Local);
	}
	global_user = g->getUser(Git::Source::Global);

	execSetUserDialog(global_user, repo_user, currentRepositoryName());
	}

	void MainWindow::on_action_window_log_triggered(bool checked)
	{
	ui->dockWidget_log->setVisible(checked);
	}

	NamedCommitList MainWindow::namedCommitItems(int flags)
	{
	NamedCommitList items;
	if (flags & Branches) {
	for (auto pair: m->branch_map) {
	QList<Git::Branch> const &list = pair.second;
	for (Git::Branch const &b : list) {
	if (b.isHeadDetached()) continue;
	QString key = b.name;
	if (flags & NamedCommitFlag::Remotes) {
	if (!b.remote.isEmpty()) {
	key = "remotes" / b.remote / key;
	}
	} else {
	if (!b.remote.isEmpty()) continue;
	}
	NamedCommitItem item;
	item.type = NamedCommitItem::Type::Branch;
	item.remote = b.remote;
	item.name = b.name;
	item.id = b.id;
	items.push_back(item);
	}
	}
	}
	if (flags & Tags) {
	for (auto pair: m->tag_map) {
	QList<Git::Tag> const &list = pair.second;
	for (Git::Tag const &t : list) {
	NamedCommitItem item;
	item.type = NamedCommitItem::Type::Tag;
	item.name = t.name;
	item.id = t.id;
	items.push_back(item);
	}
	}
	}
	return items;
	}

	int MainWindow::rowFromCommitId(QString const &id)
	{
	for (size_t i = 0; i < m->logs.size(); i++) {
	Git::CommitItem const &item = m->logs[i];
	if (item.commit_id == id) {
	return (int)i;
	}
	}
	return -1;
	}

	void MainWindow::on_action_repo_jump_triggered()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	NamedCommitList items = namedCommitItems(Branches \| Tags \| Remotes);
	JumpDialog::sort(&items);
	{
	NamedCommitItem head;
	head.name = "HEAD";
	head.id = m->head_id;
	items.push_front(head);
	}
	JumpDialog dlg(this, items);
	if (dlg.exec() == QDialog::Accepted) {
	JumpDialog::Action action = dlg.action();
	if (action == JumpDialog::Action::BranchsAndTags) {
	QString name = dlg.text();
	QString id = g->rev_parse(name);
	if (g->objectType(id) == "tag") {
	id = m->objcache.getCommitIdFromTag(id);
	}
	int row = rowFromCommitId(id);
	if (row < 0) {
	QMessageBox::warning(this, tr("Jump"), QString("%1\n(%2)\n\n").arg(name).arg(id) + tr("That commmit has not foud or not read yet"));
	} else {
	setCurrentLogRow(row);

	if (dlg.isCheckoutChecked()) {
	NamedCommitItem item;
	for (NamedCommitItem const &t : items) {
	if (t.name == name) {
	item = t;
	break;
	}
	}
	bool ok = false;
	if (item.type == NamedCommitItem::Type::Branch) {
	ok = g->git(QString("checkout \"%1\"").arg(name), true);
	} else if (item.type == NamedCommitItem::Type::Tag) {
	ok = g->git(QString("checkout -b \"%1\" \"%2\"").arg(name).arg(id), true);
	}
	if (ok) {
	openRepository(true);
	}
	}
	}
	} else if (action == JumpDialog::Action::CommitId) {
	QString id = dlg.text();
	jumpToCommit(id);
	}
	}
	}

	void MainWindow::jumpToCommit(QString id)
	{
	GitPtr g = git();
	id = g->rev_parse(id);
	if (!id.isEmpty()) {
	int row = rowFromCommitId(id);
	setCurrentLogRow(row);
	}
	}

	void MainWindow::checkout(QWidget parent, Git::CommitItem const commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QStringList tags;
	QStringList local_branches;
	QStringList remote_branches;
	{
	NamedCommitList named_commits = namedCommitItems(Branches \| Tags \| Remotes);
	JumpDialog::sort(&named_commits);
	for (NamedCommitItem const &item : named_commits) {
	if (item.id == commit->commit_id) {
	QString name = item.name;
	if (item.type == NamedCommitItem::Type::Tag) {
	tags.push_back(name);
	} else if (item.type == NamedCommitItem::Type::Branch) {
	int i = name.lastIndexOf('/');
	if (i < 0 && name == "HEAD") continue;
	if (i > 0 && name.mid(i + 1) == "HEAD") continue;
	if (item.remote.isNull()) {
	local_branches.push_back(name);
	} else {
	remote_branches.push_back(name);
	}
	}
	}
	}
	}

	CheckoutDialog dlg(parent, tags, local_branches, remote_branches);
	if (dlg.exec() == QDialog::Accepted) {
	CheckoutDialog::Operation op = dlg.operation();
	QString name = dlg.branchName();
	QString id = commit->commit_id;
	bool ok = false;
	setLogEnabled(g, true);
	if (op == CheckoutDialog::Operation::HeadDetached) {
	ok = g->git(QString("checkout \"%1\"").arg(id), true);
	} else if (op == CheckoutDialog::Operation::CreateLocalBranch) {
	ok = g->git(QString("checkout -b \"%1\" \"%2\"").arg(name).arg(id), true);
	} else if (op == CheckoutDialog::Operation::ExistingLocalBranch) {
	ok = g->git(QString("checkout \"%1\"").arg(name), true);
	}
	if (ok) {
	openRepository(true);
	}
	}
	}

	void MainWindow::deleteBranch(Git::CommitItem const *commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QStringList all_local_branch_names;
	QStringList current_local_branch_names;
	{
	NamedCommitList named_commits = namedCommitItems(Branches);
	JumpDialog::sort(&named_commits);
	for (NamedCommitItem const &item : named_commits) {
	if (item.name == "HEAD") continue;
	if (item.id == commit->commit_id) {
	current_local_branch_names.push_back(item.name);
	}
	all_local_branch_names.push_back(item.name);
	}
	}

	DeleteBranchDialog dlg(this, all_local_branch_names, current_local_branch_names);
	if (dlg.exec() == QDialog::Accepted) {
	setLogEnabled(g, true);
	QStringList names = dlg.selectedBranchNames();
	int count = 0;
	for (QString const &name : names) {
	if (g->git(QString("branch -D \"%1\"").arg(name))) {
	count++;
	} else {
	writeLog(tr("Failed to delete the branch '%1'\n").arg(name));
	}
	}
	if (count > 0) {
	openRepository(true);
	}
	}
	}

	void MainWindow::mergeBranch(Git::CommitItem const *commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->mergeBranch(commit->commit_id);
	openRepository(true);
	}

	void MainWindow::cherrypick(Git::CommitItem const *commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->cherrypick(commit->commit_id);
	openRepository(true);
	}

	void MainWindow::checkout()
	{
	checkout(this, selectedCommitItem());
	}

	void MainWindow::deleteBranch()
	{
	deleteBranch(selectedCommitItem());
	}

	void MainWindow::on_action_repo_checkout_triggered()
	{
	checkout();
	}

	void MainWindow::on_action_delete_branch_triggered()
	{
	deleteBranch();
	}

	bool MainWindow::runOnRepositoryDir(std::function<void(QString)> callback, RepositoryItem const *repo)
	{
	if (!repo) {
	repo = &m->current_repo;
	}
	QString dir = repo->local_dir;
	dir.replace('\\', '/');
	if (QFileInfo(dir).isDir()) {
	callback(dir);
	return true;
	}
	QMessageBox::warning(this, qApp->applicationName(), tr("No repository selected"));
	return false;
	}

	#ifdef Q_OS_MAC
	namespace {

	bool isValidDir(QString const &dir)
	{
	if (dir.indexOf('\"') >= 0 \|\| dir.indexOf('\\') >= 0) return false;
	return QFileInfo(dir).isDir();
	}

	}
	#endif

	void MainWindow::openTerminal(RepositoryItem const *repo)
	{
	runOnRepositoryDir([](QString dir){
	#ifdef Q_OS_MAC
	if (!isValidDir(dir)) return;
	QString cmd = "open -n -a /Applications/Utilities/Terminal.app --args \"%1\"";
	cmd = cmd.arg(dir);
	QProcess::execute(cmd);
	#else
	Terminal::open(dir);
	#endif
	}, repo);
	}

	void MainWindow::openExplorer(RepositoryItem const *repo)
	{
	runOnRepositoryDir([](QString dir){
	#ifdef Q_OS_MAC
	if (!isValidDir(dir)) return;
	QString cmd = "open \"%1\"";
	cmd = cmd.arg(dir);
	QProcess::execute(cmd);
	#else
	QDesktopServices::openUrl(dir);
	#endif
	}, repo);
	}

	void MainWindow::on_toolButton_terminal_clicked()
	{
	openTerminal(nullptr);
	}

	void MainWindow::on_toolButton_explorer_clicked()
	{
	openExplorer(nullptr);
	}

	void MainWindow::pushSetUpstream(QString const &remote, QString const &branch)
	{
	if (remote.isEmpty()) return;
	if (branch.isEmpty()) return;

	int exitcode = 0;
	QString errormsg;

	reopenRepository(true, [&](GitPtr g){
	g->push_u(remote, branch, &m->pty_process);
	while (1) {
	if (m->pty_process.wait(1)) break;
	QApplication::processEvents();
	}
	exitcode = m->pty_process.getExitCode();
	errormsg = m->pty_process.getMessage();
	});

	if (exitcode == 128) {
	if (errormsg.indexOf("Connection refused") >= 0) {
	QMessageBox::critical(this, qApp->applicationName(), tr("Connection refused."));
	return;
	}
	}

	updateRemoteInfo();
	}

	bool MainWindow::pushSetUpstream(bool testonly)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return false;
	QStringList remotes = g->getRemotes();

	QString current_branch = currentBranch().name;

	QStringList branches;
	for (Git::Branch const &b : g->branches()) {
	branches.push_back(b.name);
	}

	if (remotes.isEmpty() \|\| branches.isEmpty()) {
	return false;
	}

	if (testonly) {
	return true;
	}

	PushDialog dlg(this, remotes, branches, PushDialog::RemoteBranch(QString(), current_branch));
	if (dlg.exec() == QDialog::Accepted) {
	PushDialog::Action a = dlg.action();
	if (a == PushDialog::PushSimple) {
	ui->action_push->trigger();
	} else if (a == PushDialog::PushSetUpstream) {
	QString remote = dlg.remote();
	QString branch = dlg.branch();
	pushSetUpstream(remote, branch);
	}
	return true;
	}

	return false;
	}




	void MainWindow::on_action_reset_HEAD_1_triggered()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->reset_head1();
	openRepository(false);
	}

	void MainWindow::on_action_create_a_repository_triggered()
	{
	CreateRepositoryDialog dlg(this);
	if (dlg.exec() == QDialog::Accepted) {
	QString path = dlg.path();
	if (QFileInfo(path).isDir()) {
	if (Git::isValidWorkingCopy(path)) {
	// A valid git repository already exists there.
	} else {
	GitPtr g = git(path);
	if (g->init()) {
	QString name = dlg.name();
	if (!name.isEmpty()) {
	addWorkingCopyDir(path, name, true);
	}
	QString remote_name = dlg.remoteName();
	QString remote_url = dlg.remoteURL();
	if (!remote_name.isEmpty() && !remote_url.isEmpty()) {
	g->addRemoteURL(remote_name, remote_url);
	}
	}
	}
	} else {
	// not dir
	}
	}
	}

	bool MainWindow::isRemoteOnline() const
	{
	return ui->radioButton_remote_online->isChecked();
	}

	void MainWindow::setNetworkingCommandsEnabled(bool f)
	{
	ui->action_clone->setEnabled(f);

	ui->toolButton_clone->setEnabled(f);

	if (!Git::isValidWorkingCopy(currentWorkingCopyDir())) {
	f = false;
	}

	ui->action_fetch->setEnabled(f);
	ui->action_pull->setEnabled(f);
	ui->action_push->setEnabled(f);

	ui->toolButton_fetch->setEnabled(f);
	ui->toolButton_pull->setEnabled(f);
	ui->toolButton_push->setEnabled(f);
	}

	void MainWindow::setRemoteOnline(bool f)
	{
	QRadioButton *rb = nullptr;
	rb = f ? ui->radioButton_remote_online : ui->radioButton_remote_offline;
	rb->blockSignals(true);
	rb->click();
	rb->blockSignals(false);

	setNetworkingCommandsEnabled(f);

	MySettings s;
	s.beginGroup("Remote");
	s.setValue("Online", f);
	s.endGroup();
	}

	void MainWindow::on_radioButton_remote_online_clicked()
	{
	setRemoteOnline(true);
	}

	void MainWindow::on_radioButton_remote_offline_clicked()
	{
	setRemoteOnline(false);
	}

	void MainWindow::on_verticalScrollBar_log_valueChanged(int)
	{
	ui->widget_log->refrectScrollBar();
	}

	void MainWindow::on_horizontalScrollBar_log_valueChanged(int)
	{
	ui->widget_log->refrectScrollBar();
	}

	void MainWindow::stopPtyProcess()
	{
	m->pty_process.stop();
	QDir::setCurrent(m->starting_dir);
	}

	void MainWindow::abortPtyProcess()
	{
	stopPtyProcess();
	m->pty_process_ok = false;
	m->interaction_canceled = true;
	}

	void MainWindow::on_toolButton_stop_process_clicked()
	{
	abortPtyProcess();
	}

	void MainWindow::on_action_stop_process_triggered()
	{
	abortPtyProcess();
	}

	void MainWindow::on_action_exit_triggered()
	{
	close();
	}

	void MainWindow::on_action_reflog_triggered()
	{
	GitPtr g = git();
	Git::ReflogItemList reflog;
	g->reflog(&reflog);

	ReflogWindow dlg(this, this, reflog);
	dlg.exec();
	}

	void MainWindow::blame(QListWidgetItem *item)
	{
	QList<BlameItem> list;
	QString path = getFilePath(item);
	{
	GitPtr g = git();
	QByteArray ba = g->blame(path);
	if (!ba.isEmpty()) {
	char const *begin = ba.data();
	char const *end = begin + ba.size();
	list = BlameWindow::parseBlame(begin, end);
	}
	}
	if (!list.isEmpty()) {
	qApp->setOverrideCursor(Qt::WaitCursor);
	BlameWindow win(this, path, list);
	qApp->restoreOverrideCursor();
	win.exec();
	}
	}

	void MainWindow::blame()
	{
	blame(currentFileItem());
	}

	void MainWindow::execCommitViewWindow(Git::CommitItem const *commit)
	{
	CommitViewWindow win(this, commit);
	win.exec();
	}

	void MainWindow::on_action_repository_property_triggered()
	{
	execRepositoryPropertyDialog(currentWorkingCopyDir());
	}

	void MainWindow::on_action_set_gpg_signing_triggered()
	{
	GitPtr g = git();
	QString global_key_id = g->signingKey(Git::Source::Global);
	QString repository_key_id;
	if (g->isValidWorkingCopy()) {
	repository_key_id = g->signingKey(Git::Source::Local);
	}
	SetGpgSigningDialog dlg(this, currentRepositoryName(), global_key_id, repository_key_id);
	if (dlg.exec() == QDialog::Accepted) {
	g->setSigningKey(dlg.id(), dlg.isGlobalChecked());
	}
	}

	void MainWindow::execAreYouSureYouWantToContinueConnectingDialog()
	{
	using TheDlg = AreYouSureYouWantToContinueConnectingDialog;

	m->interaction_mode = InteractionMode::Busy;

	QApplication::restoreOverrideCursor();

	TheDlg dlg(this);
	if (dlg.exec() == QDialog::Accepted) {
	TheDlg::Result r = dlg.result();
	if (r == TheDlg::Result::Yes) {
	m->pty_process.writeInput("yes\n", 4);
	} else {
	m->pty_process_ok = false; // abort
	m->pty_process.writeInput("no\n", 3);
	QThread::msleep(300);
	stopPtyProcess();
	}
	} else {
	ui->widget_log->setFocus();
	m->interaction_canceled = true;
	}
	m->interaction_mode = InteractionMode::Busy;
	}

	void MainWindow::onLogIdle()
	{
	if (m->interaction_canceled) return;
	if (m->interaction_mode != InteractionMode::None) return;

	static char const are_you_sure_you_want_to_continue_connecting[] = "Are you sure you want to continue connecting (yes/no)?";
	static char const enter_passphrase[] = "Enter passphrase: ";

	std::vector<char> vec;
	ui->widget_log->retrieveLastText(&vec, 100);
	if (vec.size() > 0) {
	std::string line;
	int n = (int)vec.size();
	int i = n;
	while (i > 0) {
	i--;
	if (i + 1 < n && vec[i] == '\n') {
	i++;
	line.assign(&vec[i], n - i);
	break;
	}
	}
	if (!line.empty()) {
	auto Match = [&](char const *str){
	int n = strlen(str);
	if (strncmp(line.c_str(), str, n) == 0) {
	char const *p = line.c_str() + n;
	while (1) {
	if (!*p) return true;
	if (!isspace((unsigned char)*p)) break;
	p++;
	}
	}
	return false;
	};

	if (Match(are_you_sure_you_want_to_continue_connecting)) {
	execAreYouSureYouWantToContinueConnectingDialog();
	return;
	}

	if (line == enter_passphrase) {
	LineEditDialog dlg(this, "Passphrase", QString::fromStdString(line), true);
	if (dlg.exec() == QDialog::Accepted) {
	std::string text = dlg.text().toStdString() + '\n';
	m->pty_process.writeInput(text.c_str(), text.size());
	} else {
	m->pty_process_ok = false;
	stopPtyProcess();
	}
	return;
	}

	char const *begin = line.c_str();
	char const *end = line.c_str() + line.size();
	auto Input = [&](QString const &title, bool password){
	std::string header = QString("%1 for '").arg(title).toStdString();
	if (strncmp(begin, header.c_str(), header.size()) == 0) {
	QString msg;
	if (memcmp(end - 2, "':", 2) == 0) {
	msg = QString::fromUtf8(begin, end - begin - 1);
	} else if (memcmp(end - 3, "': ", 3) == 0) {
	msg = QString::fromUtf8(begin, end - begin - 2);
	}
	if (!msg.isEmpty()) {
	LineEditDialog dlg(this, title, msg, password);
	if (dlg.exec() == QDialog::Accepted) {
	std::string text = dlg.text().toStdString() + '\n';
	m->pty_process.writeInput(text.c_str(), text.size());
	} else {
	m->pty_process_ok = false;
	stopPtyProcess();
	}
	return true;
	}
	}
	return false;
	};
	if (Input("Username", false)) return;
	if (Input("Password", true)) return;
	}
	}
	}

	QList<Git::Tag> MainWindow::queryTagList()
	{
	QList<Git::Tag> list;
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit && Git::isValidID(commit->commit_id)) {
	list = findTag(commit->commit_id);
	}
	return list;
	}

	void MainWindow::on_action_edit_tags_triggered()
	{
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit && Git::isValidID(commit->commit_id)) {
	EditTagsDialog dlg(this, commit);
	dlg.exec();
	}
	}

	void MainWindow::on_action_push_u_triggered()
	{
	pushSetUpstream(false);
	}

	void MainWindow::on_action_test_triggered()
	{
	}

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