#include "repository.h"
#include <QTextStream>
#include <QDebug>
+#include <QLinkedList>
+
+static const int maxSimultaneousProcesses = 100;
+
+class ProcessCache: QLinkedList<Repository *>
+{
+public:
+ void touch(Repository *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(Repository *repo)
+ {
+ removeOne(repo);
+ }
+};
+static ProcessCache processCache;
Repository::Repository(const Rules::Repository &rule)
- : name(rule.name), processHasStarted(false)
+ : name(rule.name), commitCount(0), outstandingTransactions(0), processHasStarted(false)
{
foreach (Rules::Repository::Branch branchRule, rule.branches) {
Branch branch;
}
Repository::~Repository()
+{
+ Q_ASSERT(outstandingTransactions == 0);
+ closeFastImport();
+}
+
+void Repository::closeFastImport()
{
if (fastImport.state() != QProcess::NotRunning) {
+ fastImport.write("checkpoint\n");
+ fastImport.waitForBytesWritten(-1);
fastImport.closeWriteChannel();
- fastImport.waitForFinished();
+ if (!fastImport.waitForFinished()) {
+ fastImport.terminate();
+ if (!fastImport.waitForFinished(200))
+ qWarning() << "git-fast-import for repository" << name << "did not die";
+ }
}
+ processHasStarted = false;
+ processCache.remove(this);
}
void Repository::reloadBranches()
{
- QHash<QString, Branch>::Iterator it = branches.begin(),
- end = branches.end();
- for ( ; it != end; ++it) {
- QString branchRef = it.key();
- if (!branchRef.startsWith("refs/"))
- branchRef.prepend("refs/heads/");
-
- bool branchExists;
- // does this branch already exist?
- QProcess revParse;
- revParse.setWorkingDirectory(name);
- revParse.start("git-rev-parse", QStringList() << "--verify" << branchRef);
- revParse.waitForFinished();
-
- if (revParse.exitCode() == 0)
- branchExists = true;
- else
- branchExists = false;
-
- if (branchExists) {
- startFastImport();
- fastImport.write("reset " + branchRef.toUtf8() +
- "\nfrom " + branchRef.toUtf8() + "^0\n\n");
- it->created = 1;
+ QProcess revParse;
+ revParse.setWorkingDirectory(name);
+ revParse.start("git", QStringList() << "rev-parse" << "--symbolic" << "--branches");
+ revParse.waitForFinished(-1);
+
+ if (revParse.exitCode() == 0 && revParse.bytesAvailable()) {
+ while (revParse.canReadLine()) {
+ QByteArray branchName = revParse.readLine().trimmed();
+
+ //qDebug() << "Repo" << name << "reloaded branch" << branchName;
+ branches[branchName].created = 1;
+ fastImport.write("reset refs/heads/" + branchName +
+ "\nfrom refs/heads/" + branchName + "^0\n\n"
+ "progress Branch refs/heads/" + branchName + " reloaded\n");
}
}
}
void Repository::createBranch(const QString &branch, int revnum,
const QString &branchFrom, int)
{
+ startFastImport();
if (!branches.contains(branch)) {
qWarning() << branch << "is not a known branch in repository" << name << endl
<< "Going to create it automatically";
}
- startFastImport();
QByteArray branchRef = branch.toUtf8();
if (!branchRef.startsWith("refs/"))
branchRef.prepend("refs/heads/");
exit(1);
}
- fastImport.write("reset " + branchRef + "\nfrom " + branchFromRef + "\n\n");
+ fastImport.write("reset " + branchRef + "\nfrom " + branchFromRef + "\n\n"
+ "progress Branch " + branchRef + " created from " + branchFromRef + "\n\n");
}
Repository::Transaction *Repository::newTransaction(const QString &branch, const QString &svnprefix,
int revnum)
{
+ startFastImport();
if (!branches.contains(branch)) {
- qCritical() << branch << "is not a known branch in repository" << name;
- return 0;
+ qWarning() << branch << "is not a known branch in repository" << name << endl
+ << "Going to create it automatically";
}
Transaction *txn = new Transaction;
txn->svnprefix = svnprefix.toUtf8();
txn->datetime = 0;
txn->revnum = revnum;
- txn->lastmark = revnum;
- startFastImport();
if ((++commitCount % 10000) == 0)
// write everything to disk every 10000 commits
fastImport.write("checkpoint\n");
+ if (++outstandingTransactions == 0)
+ lastmark = 1; // reset the mark number
return txn;
}
fastImport.setProcessChannelMode(QProcess::MergedChannels);
#ifndef DRY_RUN
- fastImport.start("git-fast-import", QStringList());
+ fastImport.start("git", QStringList() << "fast-import");
#else
fastImport.start("/bin/cat", QStringList());
#endif
+
+ reloadBranches();
}
}
Repository::Transaction::~Transaction()
{
+ --repository->outstandingTransactions;
}
void Repository::Transaction::setAuthor(const QByteArray &a)
QIODevice *Repository::Transaction::addFile(const QString &path, int mode, qint64 length)
{
- FileProperties fp;
- fp.mode = mode;
- fp.mark = ++lastmark;
+ int mark = ++repository->lastmark;
+
+ if (modifiedFiles.capacity() == 0)
+ modifiedFiles.reserve(2048);
+ modifiedFiles.append("M ");
+ modifiedFiles.append(QByteArray::number(mode, 8));
+ modifiedFiles.append(" :");
+ modifiedFiles.append(QByteArray::number(mark));
+ modifiedFiles.append(' ');
+ modifiedFiles.append(path.toUtf8());
+ modifiedFiles.append("\n");
#ifndef DRY_RUN
repository->fastImport.write("blob\nmark :");
- repository->fastImport.write(QByteArray::number(fp.mark));
+ repository->fastImport.write(QByteArray::number(mark));
repository->fastImport.write("\ndata ");
repository->fastImport.write(QByteArray::number(length));
repository->fastImport.write("\n", 1);
#endif
- modifiedFiles.insert(path, fp);
return &repository->fastImport;
}
void Repository::Transaction::commit()
{
+ processCache.touch(repository);
+
// create the commit message
QByteArray message = log;
if (!message.endsWith('\n'))
QTextStream s(&repository->fastImport);
s << "commit " << branchRef << endl;
- s << "mark :" << revnum << endl;
s << "committer " << QString::fromUtf8(author) << ' ' << datetime << " -0000" << endl;
Branch &br = repository->branches[branch];
if (!br.created) {
- qWarning() << "Branch" << branch << "doesn't exist at revision"
+ qWarning() << "Branch" << branch << "in repository" << repository->name << "doesn't exist at revision"
<< revnum << "-- did you resume from the wrong revision?";
br.created = revnum;
}
repository->fastImport.write("D " + df.toUtf8() + "\n");
// write the file modifications
- QHash<QString, FileProperties>::ConstIterator it = modifiedFiles.constBegin();
- for ( ; it != modifiedFiles.constEnd(); ++it) {
- repository->fastImport.write("M ", 2);
- repository->fastImport.write(QByteArray::number(it->mode, 8));
- repository->fastImport.write(" :", 2);
- repository->fastImport.write(QByteArray::number(it->mark));
- repository->fastImport.write(" ", 1);
- repository->fastImport.write(it.key().toUtf8());
- repository->fastImport.write("\n", 1);
- }
-
- repository->fastImport.write("\n");
+ repository->fastImport.write(modifiedFiles);
+
+ repository->fastImport.write("\nprogress Commit #" +
+ QByteArray::number(repository->commitCount) +
+ " branch " + branch +
+ " = SVN r" + QByteArray::number(revnum) + "\n\n");
+ printf(" %d modifications to \"%s\"",
+ deletedFiles.count() + modifiedFiles.count(),
+ qPrintable(repository->name));
while (repository->fastImport.bytesToWrite())
if (!repository->fastImport.waitForBytesWritten(-1))
andersk / svn-all-fast-export.git / blobdiff