private ObjectDirectory.PackList ScanPacksImpl(ObjectDirectory.PackList old)
{
IDictionary <string, PackFile> forReuse = ReuseMap(old);
FileSnapshot snapshot = FileSnapshot.Save(packDirectory);
ICollection <string> names = ListPackDirectory();
IList <PackFile> list = new AList <PackFile>(names.Count >> 2);
bool foundNew = false;
foreach (string indexName in names)
{
// Must match "pack-[0-9a-f]{40}.idx" to be an index.
//
if (indexName.Length != 49 || !indexName.EndsWith(".idx"))
{
continue;
}
string @base = Sharpen.Runtime.Substring(indexName, 0, indexName.Length - 4);
string packName = @base + ".pack";
if (!names.Contains(packName))
{
// Sometimes C Git's HTTP fetch transport leaves a
// .idx file behind and does not download the .pack.
// We have to skip over such useless indexes.
//
continue;
}
PackFile oldPack = Sharpen.Collections.Remove(forReuse, packName);
if (oldPack != null)
{
list.AddItem(oldPack);
continue;
}
FilePath packFile = new FilePath(packDirectory, packName);
FilePath idxFile = new FilePath(packDirectory, indexName);
list.AddItem(new PackFile(idxFile, packFile));
foundNew = true;
}
// If we did not discover any new files, the modification time was not
// changed, and we did not remove any files, then the set of files is
// the same as the set we were given. Instead of building a new object
// return the same collection.
//
if (!foundNew && forReuse.IsEmpty() && snapshot.Equals(old.snapshot))
{
old.snapshot.SetClean(snapshot);
return(old);
}
foreach (PackFile p in forReuse.Values)
{
p.Close();
}
if (list.IsEmpty())
{
return(new ObjectDirectory.PackList(snapshot, NO_PACKS.packs));
}
PackFile[] r = Sharpen.Collections.ToArray(list, new PackFile[list.Count]);
Arrays.Sort(r, PackFile.SORT);
return(new ObjectDirectory.PackList(snapshot, r));
}
/// <summary>Load the configuration as a Git text style configuration file.</summary>
/// <remarks>
/// Load the configuration as a Git text style configuration file.
/// <p>
/// If the file does not exist, this configuration is cleared, and thus
/// behaves the same as though the file exists, but is empty.
/// </remarks>
/// <exception cref="System.IO.IOException">the file could not be read (but does exist).
/// </exception>
/// <exception cref="NGit.Errors.ConfigInvalidException">the file is not a properly formatted configuration file.
/// </exception>
public override void Load()
{
FileSnapshot oldSnapshot = snapshot;
FileSnapshot newSnapshot = FileSnapshot.Save(GetFile());
try
{
byte[] @in = IOUtil.ReadFully(GetFile());
ObjectId newHash = Hash(@in);
if (hash.Equals(newHash))
{
if (oldSnapshot.Equals(newSnapshot))
{
oldSnapshot.SetClean(newSnapshot);
}
else
{
snapshot = newSnapshot;
}
}
else
{
string decoded;
if (@in.Length >= 3 && @in[0] == unchecked ((byte)unchecked ((int)(0xEF))) && @in[1
] == unchecked ((byte)unchecked ((int)(0xBB))) && @in[2] == unchecked ((byte)unchecked (
(int)(0xBF))))
{
decoded = RawParseUtils.Decode(RawParseUtils.UTF8_CHARSET, @in, 3, @in.Length);
utf8Bom = true;
}
else
{
decoded = RawParseUtils.Decode(@in);
}
FromText(decoded);
snapshot = newSnapshot;
hash = newHash;
}
}
catch (FileNotFoundException)
{
Clear();
snapshot = newSnapshot;
}
catch (IOException e)
{
IOException e2 = new IOException(MessageFormat.Format(JGitText.Get().cannotReadFile
, GetFile()));
Sharpen.Extensions.InitCause(e2, e);
throw e2;
}
catch (ConfigInvalidException e)
{
throw new ConfigInvalidException(MessageFormat.Format(JGitText.Get().cannotReadFile
, GetFile()), e);
}
}
/// <summary>Wait until the lock file information differs from the old file.</summary>
/// <remarks>
/// Wait until the lock file information differs from the old file.
/// <p>
/// This method tests the last modification date. If both are the same, this
/// method sleeps until it can force the new lock file's modification date to
/// be later than the target file.
/// </remarks>
/// <exception cref="System.Exception">
/// the thread was interrupted before the last modified date of
/// the lock file was different from the last modified date of
/// the target file.
/// </exception>
public virtual void WaitForStatChange()
{
FileSnapshot o = FileSnapshot.Save(@ref);
FileSnapshot n = FileSnapshot.Save(lck);
while (o.Equals(n))
{
Sharpen.Thread.Sleep(25);
lck.SetLastModified(Runtime.CurrentTimeMillis());
n = FileSnapshot.Save(lck);
}
}
/// <summary>Load the configuration as a Git text style configuration file.</summary>
/// <remarks>
/// Load the configuration as a Git text style configuration file.
/// <p>
/// If the file does not exist, this configuration is cleared, and thus
/// behaves the same as though the file exists, but is empty.
/// </remarks>
/// <exception cref="System.IO.IOException">the file could not be read (but does exist).
/// </exception>
/// <exception cref="NGit.Errors.ConfigInvalidException">the file is not a properly formatted configuration file.
/// </exception>
public override void Load()
{
FileSnapshot oldSnapshot = snapshot;
FileSnapshot newSnapshot = FileSnapshot.Save(GetFile());
try
{
byte[] @in = IOUtil.ReadFully(GetFile());
ObjectId newHash = Hash(@in);
if (hash.Equals(newHash))
{
if (oldSnapshot.Equals(newSnapshot))
{
oldSnapshot.SetClean(newSnapshot);
}
else
{
snapshot = newSnapshot;
}
}
else
{
FromText(RawParseUtils.Decode(@in));
snapshot = newSnapshot;
hash = newHash;
}
}
catch (FileNotFoundException)
{
Clear();
snapshot = newSnapshot;
}
catch (IOException e)
{
IOException e2 = new IOException(MessageFormat.Format(JGitText.Get().cannotReadFile
, GetFile()));
Sharpen.Extensions.InitCause(e2, e);
throw e2;
}
catch (ConfigInvalidException e)
{
throw new ConfigInvalidException(MessageFormat.Format(JGitText.Get().cannotReadFile
, GetFile()), e);
}
}
