private int ComputeSize(DirCacheEntry[] cache, int cIdx, int pathOffset, ObjectWriter ow)
{
int endIdx = cIdx + _entrySpan;
int childIdx = 0;
int entryIdx = cIdx;
int size = 0;
while (entryIdx < endIdx)
{
DirCacheEntry e = cache[entryIdx];
if (e.getStage() != 0)
{
throw new UnmergedPathException(e);
}
byte[] ep = e.Path;
if (childIdx < _childCount)
{
DirCacheTree st = _children[childIdx];
if (st.contains(ep, pathOffset, ep.Length))
{
int stOffset = pathOffset + st.nameLength() + 1;
st.writeTree(cache, entryIdx, stOffset, ow);
size += FileMode.Tree.copyToLength();
size += st.nameLength();
size += Constants.OBJECT_ID_LENGTH + 2;
entryIdx += st._entrySpan;
childIdx++;
continue;
}
}
FileMode mode = e.getFileMode();
size += mode.copyToLength();
size += ep.Length - pathOffset;
size += Constants.OBJECT_ID_LENGTH + 2;
entryIdx++;
}
return(size);
}
/// <summary>
/// Write (if necessary) this tree to the object store.
/// </summary>
/// <param name="cacheEntry">the complete cache from DirCache.</param>
/// <param name="cIdx">
/// first position of <code>cache</code> that is a member of this
/// tree. The path of <code>cache[cacheIdx].path</code> for the
/// range <code>[0,pathOff-1)</code> matches the complete path of
/// this tree, from the root of the repository. </param>
/// <param name="pathOffset">
/// number of bytes of <code>cache[cacheIdx].path</code> that
/// matches this tree's path. The value at array position
/// <code>cache[cacheIdx].path[pathOff-1]</code> is always '/' if
/// <code>pathOff</code> is > 0.
/// </param>
/// <param name="ow">
/// the writer to use when serializing to the store.
/// </param>
/// <returns>identity of this tree.</returns>
/// <exception cref="UnmergedPathException">
/// one or more paths contain higher-order stages (stage > 0),
/// which cannot be stored in a tree object.
/// </exception>
/// <exception cref="IOException">
/// an unexpected error occurred writing to the object store.
/// </exception>
public ObjectId writeTree(DirCacheEntry[] cacheEntry, int cIdx, int pathOffset, ObjectWriter ow)
{
if (_id == null)
{
int endIdx = cIdx + _entrySpan;
int size = ComputeSize(cacheEntry, cIdx, pathOffset, ow);
var @out = new MemoryStream(size);
int childIdx = 0;
int entryIdx = cIdx;
while (entryIdx < endIdx)
{
DirCacheEntry e = cacheEntry[entryIdx];
byte[] ep = e.Path;
if (childIdx < _childCount)
{
DirCacheTree st = _children[childIdx];
if (st.contains(ep, pathOffset, ep.Length))
{
FileMode.Tree.CopyTo(@out);
@out.Write(new[] { (byte)' ' }, 0, 1);
@out.Write(st._encodedName, 0, st._encodedName.Length);
@out.Write(new[] { (byte)0 }, 0, 1);
st._id.copyRawTo(@out);
entryIdx += st._entrySpan;
childIdx++;
continue;
}
}
e.getFileMode().CopyTo(@out);
@out.Write(new[] { (byte)' ' }, 0, 1);
@out.Write(ep, pathOffset, ep.Length - pathOffset);
@out.Write(new byte[] { 0 }, 0, 1);
@out.Write(e.idBuffer(), e.idOffset(), Constants.OBJECT_ID_LENGTH);
entryIdx++;
}
_id = ow.WriteCanonicalTree(@out.ToArray());
}
return(_id);
}
public void testSetFileMode()
{
DirCacheEntry e = new DirCacheEntry("a");
Assert.AreEqual(0, e.getRawMode());
e.setFileMode(FileMode.RegularFile);
Assert.AreSame(FileMode.RegularFile, e.getFileMode());
Assert.AreEqual(FileMode.RegularFile.Bits, e.getRawMode());
e.setFileMode(FileMode.ExecutableFile);
Assert.AreSame(FileMode.ExecutableFile, e.getFileMode());
Assert.AreEqual(FileMode.ExecutableFile.Bits, e.getRawMode());
e.setFileMode(FileMode.Symlink);
Assert.AreSame(FileMode.Symlink, e.getFileMode());
Assert.AreEqual(FileMode.Symlink.Bits, e.getRawMode());
e.setFileMode(FileMode.GitLink);
Assert.AreSame(FileMode.GitLink, e.getFileMode());
Assert.AreEqual(FileMode.GitLink.Bits, e.getRawMode());
try
{
e.setFileMode(FileMode.Missing);
Assert.Fail("incorrectly accepted FileMode.MISSING");
}
catch (ArgumentException err)
{
Assert.AreEqual("Invalid mode 0 for path a", err.Message);
}
try
{
e.setFileMode(FileMode.Tree);
Assert.Fail("incorrectly accepted FileMode.TREE");
}
catch (ArgumentException err)
{
Assert.AreEqual("Invalid mode " + FileMode.TYPE_TREE + " for path a", err.Message);
}
}
