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git.cpp
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3051 lines (2380 loc) · 95.6 KB
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/*
Description: interface to git programs
Author: Marco Costalba (C) 2005-2007
Copyright: See COPYING file that comes with this distribution
*/
#include <QApplication>
#include <QDir>
#include <QFile>
#include <QImageReader>
#include <QPalette>
#include <QRegExp>
//#include <QSet> //CT TODO remove
#include <QSettings>
#include <QTextCodec>
#include <QTextDocument>
#include <QTextStream>
#include "FileHistory.h"
#include "annotate.h"
#include "cache.h"
#include "dataloader.h"
#include "git.h"
#include "lanes.h"
#include "myprocess.h"
#include "rangeselectimpl.h"
#define SHOW_MSG(x) QApplication::postEvent(parent(), new MessageEvent(x)); EM_PROCESS_EVENTS_NO_INPUT;
// Used on init() for reading parameters once;
// It's OK to be unique among qgit windows.
static bool startup = true;
using namespace QGit;
// ****************************************************************************
bool Git::TreeEntry::operator<(const TreeEntry& te) const {
if (this->type == te.type)
return( this->name.localeAwareCompare( te.name ) < 0 );
// directories are smaller then files
// to appear as first when sorted
if (this->type == "tree")
return true;
if (te.type == "tree")
return false;
return( this->name.localeAwareCompare( te.name ) < 0 );
}
Git::Git(QObject* p) : QObject(p) {
EM_INIT(exGitStopped, "Stopping connection with git");
fileCacheAccessed = cacheNeedsUpdate = isMergeHead = false;
isStGIT = isGIT = loadingUnAppliedPatches = isTextHighlighterFound = false;
errorReportingEnabled = true; // report errors if run() fails
curDomain = NULL;
revData = NULL;
revsFiles.reserve(MAX_DICT_SIZE);
}
void Git::checkEnvironment() {
QString version;
if (run("git --version", &version)) {
version = version.section(' ', -1, -1).section('.', 0, 2);
if (version < GIT_VERSION) {
// simply send information, the 'not compatible version'
// policy should be implemented upstream
const QString cmd("Current git version is " + version +
" but is required " + GIT_VERSION + " or better");
const QString errorDesc("Your installed git is too old."
"\nPlease upgrade to avoid possible misbehaviours.");
MainExecErrorEvent* e = new MainExecErrorEvent(cmd, errorDesc);
QApplication::postEvent(parent(), e);
}
} else {
dbs("Cannot find git files");
return;
}
errorReportingEnabled = false;
isTextHighlighterFound = run("source-highlight -V", &version);
errorReportingEnabled = true;
if (isTextHighlighterFound)
textHighlighterVersionFound = version.section('\n', 0, 0);
else
textHighlighterVersionFound = "GNU source-highlight not installed";
}
void Git::userInfo(SList info) {
/*
git looks for commit user information in following order:
- GIT_AUTHOR_NAME and GIT_AUTHOR_EMAIL environment variables
- repository config file
- global config file
- your name, hostname and domain
*/
const QString env(QProcess::systemEnvironment().join(","));
QString user(env.section("GIT_AUTHOR_NAME", 1).section(",", 0, 0).section("=", 1).trimmed());
QString email(env.section("GIT_AUTHOR_EMAIL", 1).section(",", 0, 0).section("=", 1).trimmed());
info.clear();
info << "Environment" << user << email;
errorReportingEnabled = false; // 'git config' could fail, see docs
run("git config user.name", &user);
run("git config user.email", &email);
info << "Local config" << user << email;
run("git config --global user.name", &user);
run("git config --global user.email", &email);
info << "Global config" << user << email;
errorReportingEnabled = true;
}
const QStringList Git::getGitConfigList(bool global) {
QString runOutput;
errorReportingEnabled = false; // 'git config' could fail, see docs
if (global)
run("git config --global --list", &runOutput);
else
run("git config --list", &runOutput);
errorReportingEnabled = true;
return runOutput.split('\n', QString::SkipEmptyParts);
}
bool Git::isImageFile(SCRef file) {
const QString ext(file.section('.', -1).toLower());
return QImageReader::supportedImageFormats().contains(ext.toAscii());
}
//CT TODO investigate if there is a better way of getting this (from git e.g.)
bool Git::isBinaryFile(SCRef file) {
static const char* binaryFileExtensions[] = {"bmp", "gif", "jpeg", "jpg",
"png", "svg", "tiff", "pcx", "xcf", "xpm",
"bz", "bz2", "rar", "tar", "z", "gz", "tgz", "zip", 0};
if (isImageFile(file))
return true;
const QString ext(file.section('.', -1).toLower());
int i = 0;
while (binaryFileExtensions[i] != 0)
if (ext == binaryFileExtensions[i++])
return true;
return false;
}
void Git::setThrowOnStop(bool b) {
if (b)
EM_REGISTER(exGitStopped);
else
EM_REMOVE(exGitStopped);
}
bool Git::isThrowOnStopRaised(int excpId, SCRef curContext) {
return EM_MATCH(excpId, exGitStopped, curContext);
}
void Git::setTextCodec(QTextCodec* tc) {
QTextCodec::setCodecForCStrings(tc); // works also with tc == 0 (Latin1)
QTextCodec::setCodecForLocale(tc);
QString name(tc ? tc->name() : "Latin1");
// workaround Qt issue of mime name different from
// standard http://www.iana.org/assignments/character-sets
if (name == "Big5-HKSCS")
name = "Big5";
run("git config i18n.commitencoding " + name);
}
QTextCodec* Git::getTextCodec(bool* isGitArchive) {
*isGitArchive = isGIT;
if (!isGIT) // can be called also when not in an archive
return NULL;
QString runOutput;
if (!run("git config i18n.commitencoding", &runOutput))
return NULL;
if (runOutput.isEmpty()) // git docs says default is utf-8
return QTextCodec::codecForName(QByteArray("utf8"));
return QTextCodec::codecForName(runOutput.trimmed().toLatin1());
}
//CT TODO utility function; can go elsewhere
const QString Git::quote(SCRef nm) {
return (QUOTE_CHAR + nm + QUOTE_CHAR);
}
//CT TODO utility function; can go elsewhere
const QString Git::quote(SCList sl) {
QString q(sl.join(QUOTE_CHAR + ' ' + QUOTE_CHAR));
q.prepend(QUOTE_CHAR).append(QUOTE_CHAR);
return q;
}
uint Git::checkRef(const ShaString& sha, uint mask) const {
RefMap::const_iterator it(refsShaMap.constFind(sha));
return (it != refsShaMap.constEnd() ? (*it).type & mask : 0);
}
uint Git::checkRef(SCRef sha, uint mask) const {
RefMap::const_iterator it(refsShaMap.constFind(toTempSha(sha)));
return (it != refsShaMap.constEnd() ? (*it).type & mask : 0);
}
const QStringList Git::getRefName(SCRef sha, RefType type, QString* curBranch) const {
if (!checkRef(sha, type))
return QStringList();
const Reference& rf = refsShaMap[toTempSha(sha)];
if (curBranch)
*curBranch = rf.currentBranch;
if (type == TAG)
return rf.tags;
else if (type == BRANCH)
return rf.branches;
else if (type == RMT_BRANCH)
return rf.remoteBranches;
else if (type == REF)
return rf.refs;
else if (type == APPLIED || type == UN_APPLIED)
return QStringList(rf.stgitPatch);
return QStringList();
}
const QStringList Git::getAllRefSha(uint mask) {
QStringList shas;
FOREACH (RefMap, it, refsShaMap)
if ((*it).type & mask)
shas.append(it.key());
return shas;
}
const QString Git::getRefSha(SCRef refName, RefType type, bool askGit) {
bool any = (type == ANY_REF);
FOREACH (RefMap, it, refsShaMap) {
const Reference& rf = *it;
if ((any || type == TAG) && rf.tags.contains(refName))
return it.key();
else if ((any || type == BRANCH) && rf.branches.contains(refName))
return it.key();
else if ((any || type == RMT_BRANCH) && rf.remoteBranches.contains(refName))
return it.key();
else if ((any || type == REF) && rf.refs.contains(refName))
return it.key();
else if ((any || type == APPLIED || type == UN_APPLIED) && rf.stgitPatch == refName)
return it.key();
}
if (!askGit)
return "";
// if a ref was not found perhaps is an abbreviated form
QString runOutput;
errorReportingEnabled = false;
bool ok = run("git rev-parse --revs-only " + refName, &runOutput);
errorReportingEnabled = true;
return (ok ? runOutput.trimmed() : "");
}
void Git::appendNamesWithId(QStringList& names, SCRef sha, SCList data, bool onlyLoaded) {
const Rev* r = revLookup(sha);
if (onlyLoaded && !r)
return;
if (onlyLoaded) { // prepare for later sorting
SCRef cap = QString("%1 ").arg(r->orderIdx, 6);
FOREACH_SL (it, data)
names.append(cap + *it);
} else
names += data;
}
const QStringList Git::getAllRefNames(uint mask, bool onlyLoaded) {
// returns reference names sorted by loading order if 'onlyLoaded' is set
QStringList names;
FOREACH (RefMap, it, refsShaMap) {
if (mask & TAG)
appendNamesWithId(names, it.key(), (*it).tags, onlyLoaded);
if (mask & BRANCH)
appendNamesWithId(names, it.key(), (*it).branches, onlyLoaded);
if (mask & RMT_BRANCH)
appendNamesWithId(names, it.key(), (*it).remoteBranches, onlyLoaded);
if (mask & REF)
appendNamesWithId(names, it.key(), (*it).refs, onlyLoaded);
if ((mask & (APPLIED | UN_APPLIED)) && !onlyLoaded)
names.append((*it).stgitPatch); // doesn't work with 'onlyLoaded'
}
if (onlyLoaded) {
names.sort();
QStringList::iterator itN(names.begin());
for ( ; itN != names.end(); ++itN) // strip 'idx'
(*itN) = (*itN).section(' ', -1, -1);
}
return names;
}
const QString Git::getRevInfo(SCRef sha) {
if (sha.isEmpty())
return "";
uint type = checkRef(sha);
if (type == 0)
return "";
QString refsInfo;
if (type & BRANCH) {
const QString cap(type & CUR_BRANCH ? "HEAD: " : "Branch: ");
refsInfo = cap + getRefName(sha, BRANCH).join(" ");
}
if (type & RMT_BRANCH)
refsInfo.append(" Remote branch: " + getRefName(sha, RMT_BRANCH).join(" "));
if (type & TAG)
refsInfo.append(" Tag: " + getRefName(sha, TAG).join(" "));
if (type & REF)
refsInfo.append(" Ref: " + getRefName(sha, REF).join(" "));
if (type & APPLIED)
refsInfo.append(" Patch: " + getRefName(sha, APPLIED).join(" "));
if (type & UN_APPLIED)
refsInfo.append(" Patch: " + getRefName(sha, UN_APPLIED).join(" "));
if (type & TAG) {
SCRef msg(getTagMsg(sha));
if (!msg.isEmpty())
refsInfo.append(" [" + msg + "]");
}
return refsInfo.trimmed();
}
const QString Git::getTagMsg(SCRef sha) {
if (!checkRef(sha, TAG)) {
dbs("ASSERT in Git::getTagMsg, tag not found");
return "";
}
Reference& rf = refsShaMap[toTempSha(sha)];
if (!rf.tagMsg.isEmpty())
return rf.tagMsg;
QRegExp pgp("-----BEGIN PGP SIGNATURE*END PGP SIGNATURE-----",
Qt::CaseSensitive, QRegExp::Wildcard);
if (!rf.tagObj.isEmpty()) {
QString ro;
if (run("git cat-file tag " + rf.tagObj, &ro))
rf.tagMsg = ro.section("\n\n", 1).remove(pgp).trimmed();
}
return rf.tagMsg;
}
bool Git::isPatchName(SCRef nm) {
if (!getRefSha(nm, UN_APPLIED, false).isEmpty())
return true;
return !getRefSha(nm, APPLIED, false).isEmpty();
}
void Git::addExtraFileInfo(QString* rowName, SCRef sha, SCRef diffToSha, bool allMergeFiles) {
const RevFile* files = getFiles(sha, diffToSha, allMergeFiles);
if (!files)
return;
int idx = findFileIndex(*files, *rowName);
if (idx == -1)
return;
QString extSt(files->extendedStatus(idx));
if (extSt.isEmpty())
return;
*rowName = extSt;
}
void Git::removeExtraFileInfo(QString* rowName) {
if (rowName->contains(" --> ")) // return destination file name
*rowName = rowName->section(" --> ", 1, 1).section(" (", 0, 0);
}
void Git::formatPatchFileHeader(QString* rowName, SCRef sha, SCRef diffToSha,
bool combined, bool allMergeFiles) {
if (combined) {
rowName->prepend("diff --combined ");
return; // TODO rename/copy still not supported in this case
}
// let's see if it's a rename/copy...
addExtraFileInfo(rowName, sha, diffToSha, allMergeFiles);
if (rowName->contains(" --> ")) { // ...it is!
SCRef destFile(rowName->section(" --> ", 1, 1).section(" (", 0, 0));
SCRef origFile(rowName->section(" --> ", 0, 0));
*rowName = "diff --git a/" + origFile + " b/" + destFile;
} else
*rowName = "diff --git a/" + *rowName + " b/" + *rowName;
}
Annotate* Git::startAnnotate(FileHistory* fh, QObject* guiObj) { // non blocking
Annotate* ann = new Annotate(this, guiObj);
if (!ann->start(fh)) // non blocking call
return NULL; // ann will delete itself when done
return ann; // caller will delete with Git::cancelAnnotate()
}
void Git::cancelAnnotate(Annotate* ann) {
if (ann)
ann->deleteWhenDone();
}
const FileAnnotation* Git::lookupAnnotation(Annotate* ann, SCRef sha) {
return (ann ? ann->lookupAnnotation(sha) : NULL);
}
void Git::cancelDataLoading(const FileHistory* fh) {
// normally called when closing file viewer
emit cancelLoading(fh); // non blocking
}
const Rev* Git::revLookup(SCRef sha, const FileHistory* fh) const {
return revLookup(toTempSha(sha), fh);
}
const Rev* Git::revLookup(const ShaString& sha, const FileHistory* fh) const {
const RevMap& r = (fh ? fh->revs : revData->revs);
return (sha.latin1() ? r.value(sha) : NULL);
}
bool Git::run(SCRef runCmd, QString* runOutput, QObject* receiver, SCRef buf) {
QByteArray ba;
bool ret = run(runOutput ? &ba : NULL, runCmd, receiver, buf);
if (runOutput)
*runOutput = ba;
return ret;
}
bool Git::run(QByteArray* runOutput, SCRef runCmd, QObject* receiver, SCRef buf) {
MyProcess p(parent(), this, workDir, errorReportingEnabled);
return p.runSync(runCmd, runOutput, receiver, buf);
}
MyProcess* Git::runAsync(SCRef runCmd, QObject* receiver, SCRef buf) {
MyProcess* p = new MyProcess(parent(), this, workDir, errorReportingEnabled);
if (!p->runAsync(runCmd, receiver, buf)) {
delete p;
p = NULL;
}
return p; // auto-deleted when done
}
MyProcess* Git::runAsScript(SCRef runCmd, QObject* receiver, SCRef buf) {
const QString scriptFile(workDir + "/qgit_script" + QGit::SCRIPT_EXT);
#ifndef Q_OS_WIN32
// without this process doesn't start under Linux
QString cmd(runCmd.startsWith("#!") ? runCmd : "#!/bin/sh\n" + runCmd);
#else
QString cmd(runCmd);
#endif
if (!writeToFile(scriptFile, cmd, true))
return NULL;
MyProcess* p = runAsync(scriptFile, receiver, buf);
if (p)
connect(p, SIGNAL(eof()), this, SLOT(on_runAsScript_eof()));
return p;
}
void Git::on_runAsScript_eof() {
QDir dir(workDir);
dir.remove("qgit_script" + QGit::SCRIPT_EXT);
}
void Git::cancelProcess(MyProcess* p) {
if (p)
p->on_cancel(); // non blocking call
}
int Git::findFileIndex(const RevFile& rf, SCRef name) {
if (name.isEmpty())
return -1;
int idx = name.lastIndexOf('/') + 1;
SCRef dr = name.left(idx);
SCRef nm = name.mid(idx);
for (uint i = 0, cnt = rf.count(); i < cnt; ++i) {
if (fileNamesVec[rf.nameAt(i)] == nm && dirNamesVec[rf.dirAt(i)] == dr)
return i;
}
return -1;
}
const QString Git::getLaneParent(SCRef fromSHA, int laneNum) {
const Rev* rs = revLookup(fromSHA);
if (!rs)
return "";
for (int idx = rs->orderIdx - 1; idx >= 0; idx--) {
const Rev* r = revLookup(revData->revOrder[idx]);
if (laneNum >= r->lanes.count())
return "";
if (!isFreeLane(r->lanes[laneNum])) {
int type = r->lanes[laneNum], parNum = 0;
while (!isMerge(type) && type != ACTIVE) {
if (isHead(type))
parNum++;
type = r->lanes[--laneNum];
}
return r->parent(parNum);
}
}
return "";
}
const QStringList Git::getChildren(SCRef parent) {
QStringList children;
const Rev* r = revLookup(parent);
if (!r)
return children;
for (int i = 0; i < r->children.count(); i++)
children.append(revData->revOrder[r->children[i]]);
// reorder children by loading order
QStringList::iterator itC(children.begin());
for ( ; itC != children.end(); ++itC) {
const Rev* r = revLookup(*itC);
(*itC).prepend(QString("%1 ").arg(r->orderIdx, 6));
}
children.sort();
for (itC = children.begin(); itC != children.end(); ++itC)
(*itC) = (*itC).section(' ', -1, -1);
return children;
}
const QString Git::getShortLog(SCRef sha) {
const Rev* r = revLookup(sha);
return (r ? r->shortLog() : "");
}
MyProcess* Git::getDiff(SCRef sha, QObject* receiver, SCRef diffToSha, bool combined) {
if (sha.isEmpty())
return NULL;
QString runCmd;
if (sha != ZERO_SHA) {
runCmd = "git diff-tree --no-color -r --patch-with-stat ";
runCmd.append(combined ? "-c " : "-C -m "); // TODO rename for combined
runCmd.append(diffToSha + " " + sha); // diffToSha could be empty
} else
runCmd = "git diff-index --no-color -r -m --patch-with-stat HEAD";
return runAsync(runCmd, receiver);
}
const QString Git::getWorkDirDiff(SCRef fileName) {
QString runCmd("git diff-index --no-color -r -z -m -p --full-index --no-commit-id HEAD"), runOutput;
if (!fileName.isEmpty())
runCmd.append(" -- " + quote(fileName));
if (!run(runCmd, &runOutput))
return "";
/* For unknown reasons file sha of index is not ZERO_SHA but
a value of unknown origin.
Replace that with ZERO_SHA so to not fool annotate
*/
int idx = runOutput.indexOf("..");
if (idx != -1)
runOutput.replace(idx + 2, 40, ZERO_SHA);
return runOutput;
}
const QString Git::getFileSha(SCRef file, SCRef revSha) {
if (revSha == ZERO_SHA) {
QStringList files, dummy;
getWorkDirFiles(files, dummy, RevFile::ANY);
if (files.contains(file))
return ZERO_SHA; // it is unknown to git
}
const QString sha(revSha == ZERO_SHA ? "HEAD" : revSha);
QString runCmd("git ls-tree -r " + sha + " " + quote(file)), runOutput;
if (!run(runCmd, &runOutput))
return "";
return runOutput.mid(12, 40); // could be empty, deleted file case
}
MyProcess* Git::getFile(SCRef fileSha, QObject* receiver, QByteArray* result, SCRef fileName) {
QString runCmd;
/*
symlinks in git are one line files with just the name of the target,
not the target content. Instead 'cat' command resolves symlinks and
returns target content. So we use 'cat' only if the file is modified
in working directory, to let annotation work for changed files, otherwise
we go with a safe 'git cat-file blob HEAD' instead.
NOTE: This fails if the modified file is a new symlink, converted
from an old plain file. In this case annotation will fail until
change is committed.
*/
if (fileSha == ZERO_SHA)
#ifdef Q_OS_WIN32
{
QString winPath = quote(fileName);
winPath.replace("/", "\\");
runCmd = "type " + winPath;
}
#else
runCmd = "cat " + quote(fileName);
#endif
else {
if (fileSha.isEmpty()) // deleted
runCmd = "git diff-tree HEAD HEAD"; // fake an empty file reading
else
runCmd = "git cat-file blob " + fileSha;
}
if (!receiver) {
run(result, runCmd);
return NULL; // in case of sync call we ignore run() return value
}
return runAsync(runCmd, receiver);
}
MyProcess* Git::getHighlightedFile(SCRef fileSha, QObject* receiver, QString* result, SCRef fileName) {
if (!isTextHighlighter()) {
dbs("ASSERT in getHighlightedFile: highlighter not found");
return NULL;
}
QString ext(fileName.section('.', -1, -1, QString::SectionIncludeLeadingSep));
QString inputFile(workDir + "/qgit_hlght_input" + ext);
if (!saveFile(fileSha, fileName, inputFile))
return NULL;
QString runCmd("source-highlight --failsafe -f html -i " + quote(inputFile));
if (!receiver) {
run(runCmd, result);
on_getHighlightedFile_eof();
return NULL; // in case of sync call we ignore run() return value
}
MyProcess* p = runAsync(runCmd, receiver);
if (p)
connect(p, SIGNAL(eof()), this, SLOT(on_getHighlightedFile_eof()));
return p;
}
void Git::on_getHighlightedFile_eof() {
QDir dir(workDir);
const QStringList sl(dir.entryList(QStringList() << "qgit_hlght_input*"));
FOREACH_SL (it, sl)
dir.remove(*it);
}
bool Git::saveFile(SCRef fileSha, SCRef fileName, SCRef path) {
QByteArray fileData;
getFile(fileSha, NULL, &fileData, fileName); // sync call
if (isBinaryFile(fileName))
return writeToFile(path, fileData);
return writeToFile(path, QString(fileData));
}
bool Git::getTree(SCRef treeSha, TreeInfo& ti, bool isWorkingDir, SCRef path) {
QStringList deleted;
if (isWorkingDir) {
// retrieve unknown and deleted files under path
QStringList unknowns, dummy;
getWorkDirFiles(unknowns, dummy, RevFile::UNKNOWN);
FOREACH_SL (it, unknowns) {
// don't add files under other directories
QFileInfo f(*it);
SCRef d(f.dir().path());
if (d == path || (path.isEmpty() && d == ".")) {
TreeEntry te(f.fileName(), "", "?");
ti.append(te);
}
}
getWorkDirFiles(deleted, dummy, RevFile::DELETED);
}
// if needed fake a working directory tree starting from HEAD tree
QString runOutput, tree(treeSha);
if (treeSha == ZERO_SHA) {
// HEAD could be empty for just init'ed repositories
if (!run("git rev-parse --revs-only HEAD", &tree))
return false;
tree = tree.trimmed();
}
if (!tree.isEmpty() && !run("git ls-tree " + tree, &runOutput))
return false;
const QStringList sl(runOutput.split('\n', QString::SkipEmptyParts));
FOREACH_SL (it, sl) {
// append any not deleted file
SCRef fn((*it).section('\t', 1, 1));
SCRef fp(path.isEmpty() ? fn : path + '/' + fn);
if (deleted.empty() || (deleted.indexOf(fp) == -1)) {
TreeEntry te(fn, (*it).mid(12, 40), (*it).mid(7, 4));
ti.append(te);
}
}
qSort(ti); // list directories before files
return true;
}
void Git::getWorkDirFiles(SList files, SList dirs, RevFile::StatusFlag status) {
files.clear();
dirs.clear();
const RevFile* f = getFiles(ZERO_SHA);
if (!f)
return;
for (int i = 0; i < f->count(); i++) {
if (f->statusCmp(i, status)) {
SCRef fp(filePath(*f, i));
files.append(fp);
for (int j = 0, cnt = fp.count('/'); j < cnt; j++) {
SCRef dir(fp.section('/', 0, j));
if (dirs.indexOf(dir) == -1)
dirs.append(dir);
}
}
}
}
bool Git::isNothingToCommit() {
if (!revsFiles.contains(ZERO_SHA_RAW))
return true;
const RevFile* rf = revsFiles[ZERO_SHA_RAW];
return (rf->count() == workingDirInfo.otherFiles.count());
}
bool Git::isTreeModified(SCRef sha) {
const RevFile* f = getFiles(sha);
if (!f)
return true; // no files info, stay on the safe side
for (int i = 0; i < f->count(); ++i)
if (!f->statusCmp(i, RevFile::MODIFIED))
return true;
return false;
}
bool Git::isParentOf(SCRef par, SCRef child) {
const Rev* c = revLookup(child);
return (c && c->parentsCount() == 1 && QString(c->parent(0)) == par); // no merges
}
bool Git::isSameFiles(SCRef tree1Sha, SCRef tree2Sha) {
// early skip common case of browsing with up and down arrows, i.e.
// going from parent(child) to child(parent). In this case we can
// check RevFileMap and skip a costly 'git diff-tree' call.
if (isParentOf(tree1Sha, tree2Sha))
return !isTreeModified(tree2Sha);
if (isParentOf(tree2Sha, tree1Sha))
return !isTreeModified(tree1Sha);
const QString runCmd("git diff-tree --no-color -r " + tree1Sha + " " + tree2Sha);
QString runOutput;
if (!run(runCmd, &runOutput))
return false;
bool isChanged = (runOutput.indexOf(" A\t") != -1 || runOutput.indexOf(" D\t") != -1);
return !isChanged;
}
const QStringList Git::getDescendantBranches(SCRef sha, bool shaOnly) {
QStringList tl;
const Rev* r = revLookup(sha);
if (!r || (r->descBrnMaster == -1))
return tl;
const QVector<int>& nr = revLookup(revData->revOrder[r->descBrnMaster])->descBranches;
for (int i = 0; i < nr.count(); i++) {
const ShaString& sha = revData->revOrder[nr[i]];
if (shaOnly) {
tl.append(sha);
continue;
}
SCRef cap = " (" + sha + ") ";
RefMap::const_iterator it(refsShaMap.find(sha));
if (it == refsShaMap.constEnd())
continue;
if (!(*it).branches.empty())
tl.append((*it).branches.join(" ").append(cap));
if (!(*it).remoteBranches.empty())
tl.append((*it).remoteBranches.join(" ").append(cap));
}
return tl;
}
const QStringList Git::getNearTags(bool goDown, SCRef sha) {
QStringList tl;
const Rev* r = revLookup(sha);
if (!r)
return tl;
int nearRefsMaster = (goDown ? r->descRefsMaster : r->ancRefsMaster);
if (nearRefsMaster == -1)
return tl;
const QVector<int>& nr = goDown ? revLookup(revData->revOrder[nearRefsMaster])->descRefs :
revLookup(revData->revOrder[nearRefsMaster])->ancRefs;
for (int i = 0; i < nr.count(); i++) {
const ShaString& sha = revData->revOrder[nr[i]];
SCRef cap = " (" + sha + ")";
RefMap::const_iterator it(refsShaMap.find(sha));
if (it != refsShaMap.constEnd())
tl.append((*it).tags.join(cap).append(cap));
}
return tl;
}
const QString Git::getLastCommitMsg() {
// FIXME: Make sure the amend action is not called when there is
// nothing to amend. That is in empty repository or over StGit stack
// with nothing applied.
QString sha;
QString top;
if (run("git rev-parse --verify HEAD", &top))
sha = top.trimmed();
else {
dbs("ASSERT: getLastCommitMsg head is not valid");
return "";
}
const Rev* c = revLookup(sha);
if (!c) {
dbp("ASSERT: getLastCommitMsg sha <%1> not found", sha);
return "";
}
return c->shortLog() + "\n\n" + c->longLog().trimmed();
}
const QString Git::getNewCommitMsg() {
const Rev* c = revLookup(ZERO_SHA);
if (!c) {
dbs("ASSERT: getNewCommitMsg zero_sha not found");
return "";
}
QString status = c->longLog();
status.prepend('\n').replace(QRegExp("\\n([^#])"), "\n#\\1"); // comment all the lines
return status;
}
//CT TODO utility function; can go elsewhere
const QString Git::colorMatch(SCRef txt, QRegExp& regExp) {
QString text;
text = Qt::escape(txt);
if (regExp.isEmpty())
return text;
SCRef startCol(QString::fromLatin1("<b><font color=\"red\">"));
SCRef endCol(QString::fromLatin1("</font></b>"));
int pos = 0;
while ((pos = text.indexOf(regExp, pos)) != -1) {
SCRef match(regExp.cap(0));
const QString coloredText(startCol + match + endCol);
text.replace(pos, match.length(), coloredText);
pos += coloredText.length();
}
return text;
}
//CT TODO utility function; can go elsewhere
const QString Git::formatList(SCList sl, SCRef name, bool inOneLine) {
if (sl.isEmpty())
return QString();