private void WaitNextSec(FilePath f)
{
long initialLastModified = f.LastModified();
do
{
f.SetLastModified(Runtime.CurrentTimeMillis());
}
while (f.LastModified() == initialLastModified);
}
/// <summary>
/// Waits until it is guaranteed that a subsequent file modification has a
/// younger modification timestamp than the modification timestamp of the
/// given file.
/// </summary>
/// <remarks>
/// Waits until it is guaranteed that a subsequent file modification has a
/// younger modification timestamp than the modification timestamp of the
/// given file. This is done by touching a temporary file, reading the
/// lastmodified attribute and, if needed, sleeping. After sleeping this loop
/// starts again until the filesystem timer has advanced enough.
/// </remarks>
/// <param name="lastFile">
/// the file on which we want to wait until the filesystem timer
/// has advanced more than the lastmodification timestamp of this
/// file
/// </param>
/// <returns>
/// return the last measured value of the filesystem timer which is
/// greater than then the lastmodification time of lastfile.
/// </returns>
/// <exception cref="System.Exception">System.Exception</exception>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
public static long FsTick(FilePath lastFile)
{
long sleepTime = 1;
FilePath tmp = FilePath.CreateTempFile("FileTreeIteratorWithTimeControl", null);
try
{
long startTime = (lastFile == null) ? tmp.LastModified() : lastFile.LastModified(
);
long actTime = tmp.LastModified();
while (actTime <= startTime)
{
Sharpen.Thread.Sleep(sleepTime);
sleepTime *= 5;
tmp.SetLastModified(Runtime.CurrentTimeMillis());
actTime = tmp.LastModified();
}
return actTime;
}
finally
{
FileUtils.Delete(tmp);
}
}
/// <summary>Kick the timestamp of a local file.</summary>
/// <remarks>
/// Kick the timestamp of a local file.
/// <p>
/// We shouldn't have to make these method calls. The cache is using file
/// system timestamps, and on many systems unit tests run faster than the
/// modification clock. Dumping the cache after we make an edit behind
/// RefDirectory's back allows the tests to pass.
/// </remarks>
/// <param name="name">the file in the repository to force a time change on.</param>
private void BUG_WorkAroundRacyGitIssues(string name)
{
FilePath path = new FilePath(db.Directory, name);
long old = path.LastModified();
long set = 1250379778668L;
// Sat Aug 15 20:12:58 GMT-03:30 2009
path.SetLastModified(set);
NUnit.Framework.Assert.IsTrue(old != path.LastModified(), "time changed");
}
private static void Touch(long begin, FilePath dir)
{
while (begin >= dir.LastModified())
{
try
{
Sharpen.Thread.Sleep(25);
}
catch (Exception)
{
}
//
dir.SetLastModified(Runtime.CurrentTimeMillis());
}
}
/// <exception cref="System.IO.IOException"></exception>
private DirCacheEntry AddEntryToBuilder(string path, FilePath file, ObjectInserter
newObjectInserter, DirCacheBuilder builder, int stage)
{
FileInputStream inputStream = new FileInputStream(file);
ObjectId id = newObjectInserter.Insert(Constants.OBJ_BLOB, file.Length(), inputStream
);
inputStream.Close();
DirCacheEntry entry = new DirCacheEntry(path, stage);
entry.SetObjectId(id);
entry.FileMode = FileMode.REGULAR_FILE;
entry.LastModified = file.LastModified();
entry.SetLength((int)file.Length());
builder.Add(entry);
return entry;
}
/// <summary>Check if the path may have been modified since the snapshot was saved.</summary>
/// <remarks>Check if the path may have been modified since the snapshot was saved.</remarks>
/// <param name="path">the path the snapshot describes.</param>
/// <returns>true if the path needs to be read again.</returns>
public virtual bool IsModified(FilePath path)
{
return IsModified(path.LastModified());
}
/// <summary>Record a snapshot for a specific file path.</summary>
/// <remarks>
/// Record a snapshot for a specific file path.
/// <p>
/// This method should be invoked before the file is accessed.
/// </remarks>
/// <param name="path">
/// the path to later remember. The path's current status
/// information is saved.
/// </param>
/// <returns>the snapshot.</returns>
public static NGit.Storage.File.FileSnapshot Save(FilePath path)
{
long read = Runtime.CurrentTimeMillis();
long modified = path.LastModified();
return new NGit.Storage.File.FileSnapshot(read, modified);
}
/// <summary>Updates the index after a content merge has happened.</summary>
/// <remarks>
/// Updates the index after a content merge has happened. If no conflict has
/// occurred this includes persisting the merged content to the object
/// database. In case of conflicts this method takes care to write the
/// correct stages to the index.
/// </remarks>
/// <param name="base"></param>
/// <param name="ours"></param>
/// <param name="theirs"></param>
/// <param name="result"></param>
/// <param name="of"></param>
/// <exception cref="System.IO.FileNotFoundException">System.IO.FileNotFoundException
/// </exception>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
private void UpdateIndex(CanonicalTreeParser @base, CanonicalTreeParser ours, CanonicalTreeParser
theirs, MergeResult<RawText> result, FilePath of)
{
if (result.ContainsConflicts())
{
// a conflict occurred, the file will contain conflict markers
// the index will be populated with the three stages and only the
// workdir (if used) contains the halfways merged content
Add(tw.RawPath, @base, DirCacheEntry.STAGE_1);
Add(tw.RawPath, ours, DirCacheEntry.STAGE_2);
Add(tw.RawPath, theirs, DirCacheEntry.STAGE_3);
mergeResults.Put(tw.PathString, result.Upcast ());
}
else
{
// no conflict occurred, the file will contain fully merged content.
// the index will be populated with the new merged version
DirCacheEntry dce = new DirCacheEntry(tw.PathString);
int newMode = MergeFileModes(tw.GetRawMode(0), tw.GetRawMode(1), tw.GetRawMode(2)
);
// set the mode for the new content. Fall back to REGULAR_FILE if
// you can't merge modes of OURS and THEIRS
dce.FileMode = (newMode == FileMode.MISSING.GetBits()) ? FileMode.REGULAR_FILE :
FileMode.FromBits(newMode);
dce.LastModified = of.LastModified();
dce.SetLength((int)of.Length());
InputStream @is = new FileInputStream(of);
try
{
dce.SetObjectId(oi.Insert(Constants.OBJ_BLOB, of.Length(), @is));
}
finally
{
@is.Close();
if (inCore)
{
FileUtils.Delete(of);
}
}
builder.Add(dce);
}
}
/// <summary>
/// Updates the file in the working tree with content and mode from an entry
/// in the index.
/// </summary>
/// <remarks>
/// Updates the file in the working tree with content and mode from an entry
/// in the index. The new content is first written to a new temporary file in
/// the same directory as the real file. Then that new file is renamed to the
/// final filename.
/// <p>
/// TODO: this method works directly on File IO, we may need another
/// abstraction (like WorkingTreeIterator). This way we could tell e.g.
/// Eclipse that Files in the workspace got changed
/// </p>
/// </remarks>
/// <param name="repo"></param>
/// <param name="f">
/// the file to be modified. The parent directory for this file
/// has to exist already
/// </param>
/// <param name="entry">the entry containing new mode and content</param>
/// <param name="or">object reader to use for checkout</param>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
public static void CheckoutEntry(Repository repo, FilePath f, DirCacheEntry entry
, ObjectReader or)
{
ObjectLoader ol = or.Open(entry.GetObjectId());
FilePath parentDir = f.GetParentFile();
FilePath tmpFile = FilePath.CreateTempFile("._" + f.GetName(), null, parentDir);
WorkingTreeOptions opt = repo.GetConfig().Get(WorkingTreeOptions.KEY);
FileOutputStream rawChannel = new FileOutputStream(tmpFile);
OutputStream channel;
if (opt.GetAutoCRLF() == CoreConfig.AutoCRLF.TRUE)
{
channel = new AutoCRLFOutputStream(rawChannel);
}
else
{
channel = rawChannel;
}
try
{
ol.CopyTo(channel);
}
finally
{
channel.Close();
}
FS fs = repo.FileSystem;
if (opt.IsFileMode() && fs.SupportsExecute())
{
if (FileMode.EXECUTABLE_FILE.Equals(entry.RawMode))
{
if (!fs.CanExecute(tmpFile))
{
fs.SetExecute(tmpFile, true);
}
}
else
{
if (fs.CanExecute(tmpFile))
{
fs.SetExecute(tmpFile, false);
}
}
}
if (!tmpFile.RenameTo(f))
{
// tried to rename which failed. Let' delete the target file and try
// again
FileUtils.Delete(f);
if (!tmpFile.RenameTo(f))
{
throw new IOException(MessageFormat.Format(JGitText.Get().couldNotWriteFile, tmpFile
.GetPath(), f.GetPath()));
}
}
entry.LastModified = f.LastModified();
if (opt.GetAutoCRLF() != CoreConfig.AutoCRLF.FALSE)
{
entry.SetLength(f.Length());
}
else
{
// AutoCRLF wants on-disk-size
entry.SetLength((int)ol.GetSize());
}
}
public virtual void TestUpdateSmudgedEntries()
{
git.BranchCreate().SetName("test2").Call();
RefUpdate rup = db.UpdateRef(Constants.HEAD);
rup.Link("refs/heads/test2");
FilePath file = new FilePath(db.WorkTree, "Test.txt");
long size = file.Length();
long mTime = file.LastModified() - 5000L;
NUnit.Framework.Assert.IsTrue(file.SetLastModified(mTime));
DirCache cache = DirCache.Lock(db.GetIndexFile(), db.FileSystem);
DirCacheEntry entry = cache.GetEntry("Test.txt");
NUnit.Framework.Assert.IsNotNull(entry);
entry.SetLength(0);
entry.LastModified = 0;
cache.Write();
NUnit.Framework.Assert.IsTrue(cache.Commit());
cache = DirCache.Read(db.GetIndexFile(), db.FileSystem);
entry = cache.GetEntry("Test.txt");
NUnit.Framework.Assert.IsNotNull(entry);
NUnit.Framework.Assert.AreEqual(0, entry.Length);
NUnit.Framework.Assert.AreEqual(0, entry.LastModified);
db.GetIndexFile().SetLastModified(db.GetIndexFile().LastModified() - 5000);
NUnit.Framework.Assert.IsNotNull(git.Checkout().SetName("test").Call());
cache = DirCache.Read(db.GetIndexFile(), db.FileSystem);
entry = cache.GetEntry("Test.txt");
NUnit.Framework.Assert.IsNotNull(entry);
NUnit.Framework.Assert.AreEqual(size, entry.Length);
NUnit.Framework.Assert.AreEqual(mTime, entry.LastModified);
}
