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repository.cpp
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/*
* Copyright (C) 2007 Thiago Macieira <[email protected]>
* Copyright (C) 2009 Thomas Zander <[email protected]>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "repository.h"
#include "CommandLineParser.h"
#include <QTextStream>
#include <QDataStream>
#include <QDebug>
#include <QDir>
#include <QFile>
#include <QLinkedList>
static const int maxSimultaneousProcesses = 100;
typedef unsigned long long mark_t;
static const mark_t maxMark = ULONG_MAX;
class FastImportRepository : public Repository
{
public:
struct AnnotatedTag
{
QString supportingRef;
QByteArray svnprefix;
QByteArray author;
QByteArray log;
uint dt;
int revnum;
};
class Transaction : public Repository::Transaction
{
Q_DISABLE_COPY(Transaction)
friend class FastImportRepository;
FastImportRepository *repository;
QByteArray branch;
QByteArray svnprefix;
QByteArray author;
QByteArray log;
uint datetime;
int revnum;
QVector<int> merges;
QStringList deletedFiles;
QByteArray modifiedFiles;
inline Transaction() {}
public:
~Transaction();
int commit();
void setAuthor(const QByteArray &author);
void setDateTime(uint dt);
void setLog(const QByteArray &log);
void noteCopyFromBranch (const QString &prevbranch, int revFrom);
void deleteFile(const QString &path);
QIODevice *addFile(const QString &path, int mode, qint64 length);
bool commitNote(const QByteArray ¬eText, bool append,
const QByteArray &commit = QByteArray());
};
FastImportRepository(const Rules::Repository &rule);
int setupIncremental(int &cutoff);
void restoreAnnotatedTags();
void restoreBranchNotes();
void restoreLog();
~FastImportRepository();
void reloadBranches();
int createBranch(const QString &branch, int revnum,
const QString &branchFrom, int revFrom);
int deleteBranch(const QString &branch, int revnum);
Repository::Transaction *newTransaction(const QString &branch, const QString &svnprefix, int revnum);
void createAnnotatedTag(const QString &name, const QString &svnprefix, int revnum,
const QByteArray &author, uint dt,
const QByteArray &log);
void finalizeTags();
void saveBranchNotes();
void commit();
bool branchExists(const QString& branch) const;
const QByteArray branchNote(const QString& branch) const;
void setBranchNote(const QString& branch, const QByteArray& noteText);
bool hasPrefix() const;
QString getName() const;
Repository *getEffectiveRepository();
private:
struct Branch
{
int created;
QVector<int> commits;
QVector<int> marks;
};
QHash<QString, Branch> branches;
QHash<QString, QByteArray> branchNotes;
QHash<QString, AnnotatedTag> annotatedTags;
QString name;
QString prefix;
LoggingQProcess fastImport;
int commitCount;
int outstandingTransactions;
QByteArray deletedBranches;
QByteArray resetBranches;
QSet<QString> deletedBranchNames;
QSet<QString> resetBranchNames;
/* Optional filter to fix up log messages */
QProcess filterMsg;
QByteArray msgFilter(QByteArray);
/* starts at 0, and counts up. */
mark_t last_commit_mark;
/* starts at maxMark - 1 and counts down. Reset after each SVN revision */
mark_t next_file_mark;
bool processHasStarted;
void startFastImport();
void closeFastImport();
// called when a transaction is deleted
void forgetTransaction(Transaction *t);
int resetBranch(const QString &branch, int revnum, mark_t mark, const QByteArray &resetTo, const QByteArray &comment);
long long markFrom(const QString &branchFrom, int branchRevNum, QByteArray &desc);
friend class ProcessCache;
Q_DISABLE_COPY(FastImportRepository)
};
class ForwardingRepository : public Repository
{
QString name;
Repository *repo;
QString prefix;
public:
class Transaction : public Repository::Transaction
{
Q_DISABLE_COPY(Transaction)
Repository::Transaction *txn;
QString prefix;
public:
Transaction(Repository::Transaction *t, const QString &p) : txn(t), prefix(p) {}
~Transaction() { delete txn; }
int commit() { return txn->commit(); }
void setAuthor(const QByteArray &author) { txn->setAuthor(author); }
void setDateTime(uint dt) { txn->setDateTime(dt); }
void setLog(const QByteArray &log) { txn->setLog(log); }
void noteCopyFromBranch (const QString &prevbranch, int revFrom)
{ txn->noteCopyFromBranch(prevbranch, revFrom); }
void deleteFile(const QString &path) { txn->deleteFile(prefix + path); }
QIODevice *addFile(const QString &path, int mode, qint64 length)
{ return txn->addFile(prefix + path, mode, length); }
bool commitNote(const QByteArray ¬eText, bool append,
const QByteArray &commit)
{ return txn->commitNote(noteText, append, commit); }
};
ForwardingRepository(const QString &n, Repository *r, const QString &p) : name(n), repo(r), prefix(p) {}
int setupIncremental(int &) { return 1; }
void restoreAnnotatedTags() {}
void restoreBranchNotes() {}
void restoreLog() {}
void reloadBranches() { return repo->reloadBranches(); }
int createBranch(const QString &branch, int revnum,
const QString &branchFrom, int revFrom)
{ return repo->createBranch(branch, revnum, branchFrom, revFrom); }
int deleteBranch(const QString &branch, int revnum)
{ return repo->deleteBranch(branch, revnum); }
Repository::Transaction *newTransaction(const QString &branch, const QString &svnprefix, int revnum)
{
Repository::Transaction *t = repo->newTransaction(branch, svnprefix, revnum);
return new Transaction(t, prefix);
}
void createAnnotatedTag(const QString &name, const QString &svnprefix, int revnum,
const QByteArray &author, uint dt,
const QByteArray &log)
{ repo->createAnnotatedTag(name, svnprefix, revnum, author, dt, log); }
void finalizeTags() { /* loop that called this will invoke it on 'repo' too */ }
void saveBranchNotes() { /* loop that called this will invoke it on 'repo' too */ }
void commit() { repo->commit(); }
bool branchExists(const QString& branch) const
{ return repo->branchExists(branch); }
const QByteArray branchNote(const QString& branch) const
{ return repo->branchNote(branch); }
void setBranchNote(const QString& branch, const QByteArray& noteText)
{ repo->setBranchNote(branch, noteText); }
bool hasPrefix() const
{ return !prefix.isEmpty() || repo->hasPrefix(); }
QString getName() const
{ return name; }
Repository *getEffectiveRepository()
{ return repo->getEffectiveRepository(); }
};
class ProcessCache: QLinkedList<FastImportRepository *>
{
public:
void touch(FastImportRepository *repo)
{
remove(repo);
// if the cache is too big, remove from the front
while (size() >= maxSimultaneousProcesses)
takeFirst()->closeFastImport();
// append to the end
append(repo);
}
inline void remove(FastImportRepository *repo)
{
#if QT_VERSION >= 0x040400
removeOne(repo);
#else
removeAll(repo);
#endif
}
};
static ProcessCache processCache;
QDataStream &operator<<(QDataStream &out, const FastImportRepository::AnnotatedTag &annotatedTag)
{
out << annotatedTag.supportingRef
<< annotatedTag.svnprefix
<< annotatedTag.author
<< annotatedTag.log
<< (quint64) annotatedTag.dt
<< (qint64) annotatedTag.revnum;
return out;
}
QDataStream &operator>>(QDataStream &in, FastImportRepository::AnnotatedTag &annotatedTag)
{
quint64 dt;
qint64 revnum;
in >> annotatedTag.supportingRef
>> annotatedTag.svnprefix
>> annotatedTag.author
>> annotatedTag.log
>> dt
>> revnum;
annotatedTag.dt = (uint) dt;
annotatedTag.revnum = (int) revnum;
return in;
}
Repository *createRepository(const Rules::Repository &rule, const QHash<QString, Repository *> &repositories)
{
if (rule.forwardTo.isEmpty())
return new FastImportRepository(rule);
Repository *r = repositories[rule.forwardTo];
if (!r) {
qCritical() << "no repository with name" << rule.forwardTo << "found at" << rule.info();
return r;
}
return new ForwardingRepository(rule.name, r, rule.prefix);
}
static QString marksFileName(QString name)
{
name.replace('/', '_');
name.prepend("marks-");
return name;
}
static QString annotatedTagsFileName(QString name)
{
name.replace('/', '_');
name.prepend("annotatedTags-");
return name;
}
static QString branchNotesFileName(QString name)
{
name.replace('/', '_');
name.prepend("branchNotes-");
return name;
}
FastImportRepository::FastImportRepository(const Rules::Repository &rule)
: name(rule.name), prefix(rule.forwardTo), fastImport(name), commitCount(0), outstandingTransactions(0),
last_commit_mark(0), next_file_mark(maxMark - 1), processHasStarted(false)
{
foreach (Rules::Repository::Branch branchRule, rule.branches) {
Branch branch;
branch.created = 1;
branches.insert(branchRule.name, branch);
}
// create the default branch
branches["master"].created = 1;
if (!CommandLineParser::instance()->contains("dry-run") && !CommandLineParser::instance()->contains("create-dump")) {
fastImport.setWorkingDirectory(name);
if (!QDir(name).exists()) { // repo doesn't exist yet.
qDebug() << "Creating new repository" << name;
QDir::current().mkpath(name);
QProcess init;
init.setWorkingDirectory(name);
init.start("git", QStringList() << "--bare" << "init");
init.waitForFinished(-1);
QProcess casesensitive;
casesensitive.setWorkingDirectory(name);
casesensitive.start("git", QStringList() << "config" << "core.ignorecase" << "false");
casesensitive.waitForFinished(-1);
// Write description
if (!rule.description.isEmpty()) {
QFile fDesc(QDir(name).filePath("description"));
if (fDesc.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text)) {
fDesc.write(rule.description.toUtf8());
fDesc.putChar('\n');
fDesc.close();
}
}
{
QFile marks(name + "/" + marksFileName(name));
marks.open(QIODevice::WriteOnly);
marks.close();
}
}
}
}
static QString logFileName(QString name)
{
name.replace('/', '_');
if (CommandLineParser::instance()->contains("create-dump"))
name.append(".fi");
else
name.prepend("log-");
return name;
}
static mark_t lastValidMark(QString name)
{
QFile marksfile(name + "/" + marksFileName(name));
if (!marksfile.open(QIODevice::ReadOnly))
return 0;
qDebug() << "marksfile " << marksfile.fileName() ;
mark_t prev_mark = 0;
int lineno = 0;
while (!marksfile.atEnd()) {
QString line = marksfile.readLine();
++lineno;
if (line.isEmpty())
continue;
mark_t mark = 0;
if (line[0] == ':') {
int sp = line.indexOf(' ');
if (sp != -1) {
QString m = line.mid(1, sp-1);
mark = m.toULongLong();
}
}
if (!mark) {
qCritical() << marksfile.fileName() << "line" << lineno << "marks file corrupt?" << "mark " << mark;
return 0;
}
if (mark == prev_mark) {
qCritical() << marksfile.fileName() << "line" << lineno << "marks file has duplicates";
return 0;
}
if (mark < prev_mark) {
qCritical() << marksfile.fileName() << "line" << lineno << "marks file not sorted";
return 0;
}
if (mark > prev_mark + 1)
break;
prev_mark = mark;
}
return prev_mark;
}
int FastImportRepository::setupIncremental(int &cutoff)
{
QFile logfile(logFileName(name));
if (!logfile.exists())
return 1;
logfile.open(QIODevice::ReadWrite);
QRegExp progress("progress SVN r(\\d+) branch (.*) = :(\\d+)");
mark_t last_valid_mark = lastValidMark(name);
int last_revnum = 0;
qint64 pos = 0;
int retval = 0;
QString bkup = logfile.fileName() + ".old";
while (!logfile.atEnd()) {
pos = logfile.pos();
QByteArray line = logfile.readLine();
int hash = line.indexOf('#');
if (hash != -1)
line.truncate(hash);
line = line.trimmed();
if (line.isEmpty())
continue;
if (!progress.exactMatch(line))
continue;
int revnum = progress.cap(1).toInt();
QString branch = progress.cap(2);
mark_t mark = progress.cap(3).toULongLong();
if (revnum >= cutoff)
goto beyond_cutoff;
if (revnum < last_revnum)
qWarning() << "WARN:" << name << "revision numbers are not monotonic: "
<< "got" << QString::number(last_revnum)
<< "and then" << QString::number(revnum);
if (mark > last_valid_mark) {
qWarning() << "WARN:" << name << "unknown commit mark found: rewinding -- did you hit Ctrl-C?";
cutoff = revnum;
goto beyond_cutoff;
}
last_revnum = revnum;
if (last_commit_mark < mark)
last_commit_mark = mark;
Branch &br = branches[branch];
if (!br.created || !mark || br.marks.isEmpty() || !br.marks.last())
br.created = revnum;
br.commits.append(revnum);
br.marks.append(mark);
}
retval = last_revnum + 1;
if (retval == cutoff)
/*
* If a stale backup file exists already, remove it, so that
* we don't confuse ourselves in 'restoreLog()'
*/
QFile::remove(bkup);
return retval;
beyond_cutoff:
// backup file, since we'll truncate
QFile::remove(bkup);
logfile.copy(bkup);
// truncate, so that we ignore the rest of the revisions
qDebug() << name << "truncating history to revision" << cutoff;
logfile.resize(pos);
return cutoff;
}
void FastImportRepository::restoreAnnotatedTags()
{
QFile annotatedTagsFile(name + "/" + annotatedTagsFileName(name));
if (!annotatedTagsFile.exists())
return;
annotatedTagsFile.open(QIODevice::ReadOnly);
QDataStream annotatedTagsStream(&annotatedTagsFile);
annotatedTagsStream >> annotatedTags;
annotatedTagsFile.close();
}
void FastImportRepository::restoreBranchNotes()
{
QFile branchNotesFile(name + "/" + branchNotesFileName(name));
if (!branchNotesFile.exists())
return;
branchNotesFile.open(QIODevice::ReadOnly);
QDataStream branchNotesStream(&branchNotesFile);
branchNotesStream >> branchNotes;
branchNotesFile.close();
}
void FastImportRepository::restoreLog()
{
QString file = logFileName(name);
QString bkup = file + ".old";
if (!QFile::exists(bkup))
return;
QFile::remove(file);
QFile::rename(bkup, file);
}
FastImportRepository::~FastImportRepository()
{
Q_ASSERT(outstandingTransactions == 0);
closeFastImport();
}
void FastImportRepository::closeFastImport()
{
if (fastImport.state() != QProcess::NotRunning) {
int fastImportTimeout = CommandLineParser::instance()->optionArgument(QLatin1String("fast-import-timeout"), QLatin1String("3600")).toInt();
if(fastImportTimeout == 0) {
qDebug() << "Waiting forever for fast-import to finish.";
fastImportTimeout = -1;
} else {
qDebug() << "Waiting" << fastImportTimeout << "seconds for fast-import to finish.";
fastImportTimeout *= 10000;
}
fastImport.write("checkpoint\n");
fastImport.waitForBytesWritten(-1);
fastImport.closeWriteChannel();
if (!fastImport.waitForFinished(fastImportTimeout)) {
fastImport.terminate();
if (!fastImport.waitForFinished(200))
qWarning() << "WARN: git-fast-import for repository" << name << "did not die";
}
}
processHasStarted = false;
processCache.remove(this);
}
void FastImportRepository::reloadBranches()
{
bool reset_notes = false;
foreach (QString branch, branches.keys()) {
Branch &br = branches[branch];
if (br.marks.isEmpty() || !br.marks.last())
continue;
reset_notes = true;
QByteArray branchRef = branch.toUtf8();
if (!branchRef.startsWith("refs/"))
branchRef.prepend("refs/heads/");
startFastImport();
fastImport.write("reset " + branchRef +
"\nfrom :" + QByteArray::number(br.marks.last()) + "\n\n"
"progress Branch " + branchRef + " reloaded\n");
}
if (reset_notes &&
CommandLineParser::instance()->contains("add-metadata-notes")) {
startFastImport();
fastImport.write("reset refs/notes/commits\nfrom :" +
QByteArray::number(maxMark) +
"\n");
}
}
long long FastImportRepository::markFrom(const QString &branchFrom, int branchRevNum, QByteArray &branchFromDesc)
{
Branch &brFrom = branches[branchFrom];
if (!brFrom.created)
return -1;
if (brFrom.commits.isEmpty()) {
return -1;
}
if (branchRevNum == brFrom.commits.last()) {
return brFrom.marks.last();
}
QVector<int>::const_iterator it = qUpperBound(brFrom.commits, branchRevNum);
if (it == brFrom.commits.begin()) {
return 0;
}
int closestCommit = *--it;
if (!branchFromDesc.isEmpty()) {
branchFromDesc += " at r" + QByteArray::number(branchRevNum);
if (closestCommit != branchRevNum) {
branchFromDesc += " => r" + QByteArray::number(closestCommit);
}
}
return brFrom.marks[it - brFrom.commits.begin()];
}
int FastImportRepository::createBranch(const QString &branch, int revnum,
const QString &branchFrom, int branchRevNum)
{
QByteArray branchFromDesc = "from branch " + branchFrom.toUtf8();
long long mark = markFrom(branchFrom, branchRevNum, branchFromDesc);
if (mark == -1) {
qCritical() << branch << "in repository" << name
<< "is branching from branch" << branchFrom
<< "but the latter doesn't exist. Can't continue.";
return EXIT_FAILURE;
}
QByteArray branchFromRef = ":" + QByteArray::number(mark);
if (!mark) {
qWarning() << "WARN:" << branch << "in repository" << name << "is branching but no exported commits exist in repository"
<< "creating an empty branch.";
branchFromRef = branchFrom.toUtf8();
if (!branchFromRef.startsWith("refs/"))
branchFromRef.prepend("refs/heads/");
branchFromDesc += ", deleted/unknown";
}
qDebug() << "Creating branch:" << branch << "from" << branchFrom << "(" << branchRevNum << branchFromDesc << ")";
// Preserve note
branchNotes[branch] = branchNotes.value(branchFrom);
return resetBranch(branch, revnum, mark, branchFromRef, branchFromDesc);
}
int FastImportRepository::deleteBranch(const QString &branch, int revnum)
{
static QByteArray null_sha(40, '0');
return resetBranch(branch, revnum, 0, null_sha, "delete");
}
int FastImportRepository::resetBranch(const QString &branch, int revnum, mark_t mark, const QByteArray &resetTo, const QByteArray &comment)
{
QByteArray branchRef = branch.toUtf8();
if (!branchRef.startsWith("refs/"))
branchRef.prepend("refs/heads/");
Branch &br = branches[branch];
QByteArray backupCmd;
if (br.created && br.created != revnum && !br.marks.isEmpty() && br.marks.last()) {
QByteArray backupBranch;
if ((comment == "delete") && branchRef.startsWith("refs/heads/"))
backupBranch = "refs/tags/backups/" + branchRef.mid(11) + "@" + QByteArray::number(revnum);
else
backupBranch = "refs/backups/r" + QByteArray::number(revnum) + branchRef.mid(4);
qWarning() << "WARN: backing up branch" << branch << "to" << backupBranch;
backupCmd = "reset " + backupBranch + "\nfrom " + branchRef + "\n\n";
}
br.created = revnum;
br.commits.append(revnum);
br.marks.append(mark);
QByteArray cmd = "reset " + branchRef + "\nfrom " + resetTo + "\n\n"
"progress SVN r" + QByteArray::number(revnum)
+ " branch " + branch.toUtf8() + " = :" + QByteArray::number(mark)
+ " # " + comment + "\n\n";
if(comment == "delete") {
deletedBranches.append(backupCmd).append(cmd);
deletedBranchNames.insert(branchRef);
} else {
resetBranches.append(backupCmd).append(cmd);
resetBranchNames.insert(branchRef);
}
return EXIT_SUCCESS;
}
void FastImportRepository::commit()
{
if (deletedBranches.isEmpty() && resetBranches.isEmpty()) {
return;
}
startFastImport();
fastImport.write(deletedBranches);
fastImport.write(resetBranches);
deletedBranches.clear();
resetBranches.clear();
QSet<QString>::ConstIterator it = deletedBranchNames.constBegin();
for ( ; it != deletedBranchNames.constEnd(); ++it) {
QString tagName = *it;
if (resetBranchNames.contains(tagName))
continue;
if (tagName.startsWith("refs/tags/"))
tagName.remove(0, 10);
if (annotatedTags.remove(tagName) > 0) {
qDebug() << "Removing annotated tag" << tagName << "for" << name;
}
}
deletedBranchNames.clear();
resetBranchNames.clear();
}
Repository::Transaction *FastImportRepository::newTransaction(const QString &branch, const QString &svnprefix,
int revnum)
{
if (!branches.contains(branch)) {
qWarning() << "WARN: Transaction:" << branch << "is not a known branch in repository" << name << endl
<< "Going to create it automatically";
}
Transaction *txn = new Transaction;
txn->repository = this;
txn->branch = branch.toUtf8();
txn->svnprefix = svnprefix.toUtf8();
txn->datetime = 0;
txn->revnum = revnum;
if ((++commitCount % CommandLineParser::instance()->optionArgument(QLatin1String("commit-interval"), QLatin1String("10000")).toInt()) == 0) {
startFastImport();
// write everything to disk every 10000 commits
fastImport.write("checkpoint\n");
qDebug() << "checkpoint!, marks file truncated";
}
outstandingTransactions++;
return txn;
}
void FastImportRepository::forgetTransaction(Transaction *)
{
if (!--outstandingTransactions)
next_file_mark = maxMark - 1;
}
void FastImportRepository::createAnnotatedTag(const QString &ref, const QString &svnprefix,
int revnum,
const QByteArray &author, uint dt,
const QByteArray &log)
{
QString tagName = ref;
if (tagName.startsWith("refs/tags/"))
tagName.remove(0, 10);
if (!annotatedTags.contains(tagName))
printf("\nCreating annotated tag %s (%s) for %s\n", qPrintable(tagName), qPrintable(ref), qPrintable(name));
else
printf("\nRe-creating annotated tag %s for %s\n", qPrintable(tagName), qPrintable(name));
AnnotatedTag &tag = annotatedTags[tagName];
tag.supportingRef = ref;
tag.svnprefix = svnprefix.toUtf8();
tag.revnum = revnum;
tag.author = author;
tag.log = log;
tag.dt = dt;
}
void FastImportRepository::finalizeTags()
{
if (annotatedTags.isEmpty())
return;
QFile annotatedTagsFile(name + "/" + annotatedTagsFileName(name));
annotatedTagsFile.open(QIODevice::WriteOnly);
QDataStream annotatedTagsStream(&annotatedTagsFile);
annotatedTagsStream << annotatedTags;
annotatedTagsFile.close();
printf("Finalising annotated tags for %s...", qPrintable(name));
startFastImport();
QHash<QString, AnnotatedTag>::ConstIterator it = annotatedTags.constBegin();
for ( ; it != annotatedTags.constEnd(); ++it) {
const QString &tagName = it.key();
const AnnotatedTag &tag = it.value();
QByteArray message = tag.log;
if (!message.endsWith('\n'))
message += '\n';
if (CommandLineParser::instance()->contains("add-metadata"))
message += "\n" + formatMetadataMessage(tag.svnprefix, tag.revnum, tagName.toUtf8());
{
QByteArray branchRef = tag.supportingRef.toUtf8();
if (!branchRef.startsWith("refs/"))
branchRef.prepend("refs/heads/");
QByteArray s = "progress Creating annotated tag " + tagName.toUtf8() + " from ref " + branchRef + "\n"
+ "tag " + tagName.toUtf8() + "\n"
+ "from " + branchRef + "\n"
+ "tagger " + tag.author + ' ' + QByteArray::number(tag.dt) + " +0000" + "\n"
+ "data " + QByteArray::number( message.length() ) + "\n";
fastImport.write(s);
}
fastImport.write(message);
fastImport.putChar('\n');
if (!fastImport.waitForBytesWritten(-1))
qFatal("Failed to write to process: %s", qPrintable(fastImport.errorString()));
// Append note to the tip commit of the supporting ref. There is no
// easy way to attach a note to the tag itself with fast-import.
if (CommandLineParser::instance()->contains("add-metadata-notes")) {
Repository::Transaction *txn = newTransaction(tag.supportingRef, tag.svnprefix, tag.revnum);
txn->setAuthor(tag.author);
txn->setDateTime(tag.dt);
bool written = txn->commitNote(formatMetadataMessage(tag.svnprefix, tag.revnum, tagName.toUtf8()), true);
delete txn;
if (written && !fastImport.waitForBytesWritten(-1))
qFatal("Failed to write to process: %s", qPrintable(fastImport.errorString()));
}
printf(" %s", qPrintable(tagName));
fflush(stdout);
}
while (fastImport.bytesToWrite())
if (!fastImport.waitForBytesWritten(-1))
qFatal("Failed to write to process: %s", qPrintable(fastImport.errorString()));
printf("\n");
}
void FastImportRepository::saveBranchNotes()
{
if (branchNotes.isEmpty())
return;
QFile branchNotesFile(name + "/" + branchNotesFileName(name));
branchNotesFile.open(QIODevice::WriteOnly);
QDataStream branchNotesStream(&branchNotesFile);
branchNotesStream << branchNotes;
branchNotesFile.close();
}
QByteArray
FastImportRepository::msgFilter(QByteArray msg)
{
QByteArray output = msg;
if (CommandLineParser::instance()->contains("msg-filter")) {
if (filterMsg.state() == QProcess::Running)
qFatal("filter process already running?");
filterMsg.start(CommandLineParser::instance()->optionArgument("msg-filter"));
if(!(filterMsg.waitForStarted(-1)))
qFatal("Failed to Start Filter %d %s", __LINE__, qPrintable(filterMsg.errorString()));
filterMsg.write(msg);
filterMsg.closeWriteChannel();
filterMsg.waitForFinished();
output = filterMsg.readAllStandardOutput();
}
return output;
}
void FastImportRepository::startFastImport()
{
processCache.touch(this);
if (fastImport.state() == QProcess::NotRunning) {
if (processHasStarted)
qFatal("git-fast-import has been started once and crashed?");
processHasStarted = true;
// start the process
QString marksFile = marksFileName(name);
QStringList marksOptions;
marksOptions << "--import-marks=" + marksFile;
marksOptions << "--export-marks=" + marksFile;
marksOptions << "--force";
fastImport.setStandardOutputFile(logFileName(name), QIODevice::Append);
fastImport.setProcessChannelMode(QProcess::MergedChannels);
if (!CommandLineParser::instance()->contains("dry-run") && !CommandLineParser::instance()->contains("create-dump")) {
fastImport.start("git", QStringList() << "fast-import" << marksOptions);
} else {
fastImport.start("cat", QStringList());
}
fastImport.waitForStarted(-1);
reloadBranches();
}
}
QByteArray Repository::formatMetadataMessage(const QByteArray &svnprefix, int revnum, const QByteArray &tag)
{
QByteArray msg = "svn path=" + svnprefix + "; revision=" + QByteArray::number(revnum);
if (!tag.isEmpty())
msg += "; tag=" + tag;
msg += "\n";
return msg;
}
bool FastImportRepository::branchExists(const QString& branch) const
{
return branches.contains(branch);
}
const QByteArray FastImportRepository::branchNote(const QString& branch) const
{
return branchNotes.value(branch);
}
void FastImportRepository::setBranchNote(const QString& branch, const QByteArray& noteText)
{
if (branches.contains(branch))
branchNotes[branch] = noteText;
}
bool FastImportRepository::hasPrefix() const
{
return !prefix.isEmpty();
}
QString FastImportRepository::getName() const
{
return name;
}
Repository *FastImportRepository::getEffectiveRepository()
{
return this;
}
FastImportRepository::Transaction::~Transaction()
{
repository->forgetTransaction(this);
}
void FastImportRepository::Transaction::setAuthor(const QByteArray &a)
{
author = a;
}
void FastImportRepository::Transaction::setDateTime(uint dt)
{
datetime = dt;
}
void FastImportRepository::Transaction::setLog(const QByteArray &l)
{
log = l;
}
void FastImportRepository::Transaction::noteCopyFromBranch(const QString &branchFrom, int branchRevNum)
{
if(branch == branchFrom) {
qWarning() << "WARN: Cannot merge inside a branch";
return;
}
static QByteArray dummy;
long long mark = repository->markFrom(branchFrom, branchRevNum, dummy);
Q_ASSERT(dummy.isEmpty());
if (mark == -1) {
qWarning() << "WARN:" << branch << "is copying from branch" << branchFrom
<< "but the latter doesn't exist. Continuing, assuming the files exist.";
} else if (mark == 0) {
qWarning() << "WARN: Unknown revision r" << QByteArray::number(branchRevNum)
<< ". Continuing, assuming the files exist.";
} else {
qWarning() << "WARN: repository " + repository->name + " branch " + branch + " has some files copied from " + branchFrom + "@" + QByteArray::number(branchRevNum);
if (!merges.contains(mark)) {
merges.append(mark);
qDebug() << "adding" << branchFrom + "@" + QByteArray::number(branchRevNum) << ":" << mark << "as a merge point";
} else {
qDebug() << "merge point already recorded";
}
}
}
void FastImportRepository::Transaction::deleteFile(const QString &path)
{
QString pathNoSlash = repository->prefix + path;
if(pathNoSlash.endsWith('/'))