/// <summary>
/// Create a new iterator for an already loaded DirCache instance.
/// <para/>
/// The iterator implementation may copy part of the cache's data during
/// construction, so the cache must be Read in prior to creating the
/// iterator.
/// </summary>
/// <param name="dc">
/// The cache to walk. It must be already loaded into memory.
/// </param>
public DirCacheIterator(DirCache dc)
{
Cache = dc;
Tree = dc.getCacheTree(true);
TreeStart = 0;
TreeEnd = Tree.getEntrySpan();
SubtreeId = new byte[Constants.OBJECT_ID_LENGTH];
if (!eof())
{
ParseEntry();
}
}
public void testCorruptChecksumAtFooter()
{
var dc = new DirCache(pathOf("gitgit.index.badchecksum"));
try
{
dc.read();
Assert.Fail("Cache loaded despite corrupt checksum");
}
catch (CorruptObjectException err)
{
Assert.AreEqual("DIRC checksum mismatch", err.Message);
}
}
/// <summary>
/// Create a new iterator for an already loaded DirCache instance.
/// <para/>
/// The iterator implementation may copy part of the cache's data during
/// construction, so the cache must be Read in prior to creating the
/// iterator.
/// </summary>
/// <param name="dc">
/// The cache to walk. It must be already loaded into memory.
/// </param>
public DirCacheIterator(DirCache dc)
{
Cache = dc;
Tree = dc.getCacheTree(true);
TreeStart = 0;
TreeEnd = Tree.getEntrySpan();
SubtreeId = new byte[Constants.OBJECT_ID_LENGTH];
if (!eof())
{
ParseEntry();
}
}
public void testReadIndex_LsFiles()
{
List<CGitIndexRecord> ls = ReadLsFiles();
var dc = new DirCache(_index);
Assert.AreEqual(0, dc.getEntryCount());
dc.read();
Assert.AreEqual(ls.Count, dc.getEntryCount());
int i = 0;
foreach (var val in ls)
{
AssertAreEqual(val, dc.getEntry(i));
i++;
}
}
private void BeforeAdd(DirCacheEntry newEntry)
{
if (FileMode.Tree.Equals(newEntry.getRawMode()))
{
throw Bad(newEntry, "Adding subtree not allowed");
}
if (_sorted && EntryCnt > 0)
{
DirCacheEntry lastEntry = Entries[EntryCnt - 1];
int cr = DirCache.Compare(lastEntry, newEntry);
if (cr > 0)
{
// The new entry sorts before the old entry; we are
// no longer sorted correctly. We'll need to redo
// the sorting before we can close out the build.
//
_sorted = false;
}
else if (cr == 0)
{
// Same file path; we can only insert this if the
// stages won't be violated.
//
int peStage = lastEntry.getStage();
int dceStage = newEntry.getStage();
if (peStage == dceStage)
{
throw Bad(newEntry, "Duplicate stages not allowed");
}
if (peStage == 0 || dceStage == 0)
{
throw Bad(newEntry, "Mixed stages not allowed");
}
if (peStage > dceStage)
{
_sorted = false;
}
}
}
}
/// <summary>
/// Create a new in-core index representation, lock it, and read from disk.
/// <para />
/// The new index will be locked and then read before it is returned to the
/// caller. Read failures are reported as exceptions and therefore prevent
/// the method from returning a partially populated index. On read failure,
/// the lock is released.
/// </summary>
/// <param name="indexLocation">
/// location of the index file on disk.
/// </param>
/// <returns>
/// A cache representing the contents of the specified index file (if
/// it exists) or an empty cache if the file does not exist.
/// </returns>
/// <exception cref="IOException">
/// The index file is present but could not be read, or the lock
/// could not be obtained.
/// </exception>
/// <exception cref="CorruptObjectException">
/// the index file is using a format or extension that this
/// library does not support.
/// </exception>
public static DirCache Lock(FileInfo indexLocation)
{
var c = new DirCache(indexLocation);
if (!c.Lock())
{
throw new IOException("Cannot lock " + indexLocation);
}
try
{
c.read();
}
catch (Exception)
{
c.unlock();
throw;
}
return(c);
}
public void testTreeWalk_LsFiles()
{
global::GitSharp.Core.Repository db = createBareRepository();
List<CGitIndexRecord> ls = ReadLsFiles();
var dc = new DirCache(_index);
Assert.AreEqual(0, dc.getEntryCount());
dc.read();
Assert.AreEqual(ls.Count, dc.getEntryCount());
var rItr = ls.GetEnumerator();
var tw = new TreeWalk(db);
tw.reset();
tw.Recursive = true;
tw.addTree(new DirCacheIterator(dc));
while (rItr.MoveNext())
{
Assert.IsTrue(tw.next());
var dcItr = tw.getTree<DirCacheIterator>(0, typeof(DirCacheIterator));
Assert.IsNotNull(dcItr);
AssertAreEqual(rItr.Current, dcItr.getDirCacheEntry());
}
}
public void testReadIndex_DirCacheTree()
{
List<CGitIndexRecord> cList = ReadLsFiles();
List<CGitLsTreeRecord> cTree = ReadLsTree();
var dc = new DirCache(_index);
Assert.AreEqual(0, dc.getEntryCount());
dc.read();
Assert.AreEqual(cList.Count, dc.getEntryCount());
DirCacheTree jTree = dc.getCacheTree(false);
Assert.IsNotNull(jTree);
Assert.AreEqual(string.Empty, jTree.getNameString());
Assert.AreEqual(string.Empty, jTree.getPathString());
Assert.IsTrue(jTree.isValid());
Assert.AreEqual(ObjectId
.FromString("698dd0b8d0c299f080559a1cffc7fe029479a408"), jTree
.getObjectId());
Assert.AreEqual(cList.Count, jTree.getEntrySpan());
var subtrees = new List<CGitLsTreeRecord>();
foreach (CGitLsTreeRecord r in cTree)
{
if (FileMode.Tree.Equals(r.Mode))
subtrees.Add(r);
}
Assert.AreEqual(subtrees.Count, jTree.getChildCount());
for (int i = 0; i < jTree.getChildCount(); i++)
{
DirCacheTree sj = jTree.getChild(i);
CGitLsTreeRecord sc = subtrees[i];
Assert.AreEqual(sc.Path, sj.getNameString());
Assert.AreEqual(sc.Path + "/", sj.getPathString());
Assert.IsTrue(sj.isValid());
Assert.AreEqual(sc.Id, sj.getObjectId());
}
}
private ObjectId Commit(ObjectWriter ow, DirCache treeB, ObjectId[] parentIds)
{
var c = new Commit(db) { TreeId = treeB.writeTree(ow), Author = new PersonIdent("A U Thor", "a.u.thor", 1L, 0) };
c.Committer = c.Author;
c.ParentIds = parentIds;
c.Message = "Tree " + c.TreeId.Name;
return ow.WriteCommit(c);
}
private static void AssertCorrectId(DirCache treeT, GitSharp.Core.TreeWalk.TreeWalk tw)
{
Assert.AreEqual(treeT.getEntry(tw.getPathString()).getObjectId(), tw.getObjectId(0));
}
/// <summary>
/// Construct a new builder.
/// </summary>
/// <param name="dc">
/// the cache this builder will eventually update.
/// </param>
/// <param name="ecnt">
/// Estimated number of entries the builder will have upon
/// completion. This sizes the initial entry table.
/// </param>
public DirCacheBuilder(DirCache dc, int ecnt)
: base(dc, ecnt)
{
}
public InCoreMerger(Repository local)
: base(local)
{
_tw = new NameConflictTreeWalk(Repository);
_cache = DirCache.newInCore();
}
/// <summary>
/// Construct a new editor.
/// </summary>
/// <param name="dc">
/// the cache this editor will eventually update.
/// </param>
/// <param name="ecnt">
/// estimated number of entries the editor will have upon
/// completion. This sizes the initial entry table.
/// </param>
protected BaseDirCacheEditor(DirCache dc, int ecnt)
{
_cache = dc;
_entries = new DirCacheEntry[ecnt];
}
public void testReadIndex_LsFiles()
{
List<CGitIndexRecord> ls = ReadLsFiles();
var dc = new DirCache(_index);
Assert.AreEqual(0, dc.getEntryCount());
dc.read();
Assert.AreEqual(ls.Count, dc.getEntryCount());
var cache = new List<DirCacheEntry>();
for (int i = 0; i < dc.getEntryCount(); i++)
{
cache.Add(dc.getEntry(i));
}
ls.Sort((x, y) => x.Path.CompareTo(y.Path));
cache.Sort((x, y) => x.getPathString().CompareTo(y.getPathString()));
int j = 0;
foreach (var val in ls)
{
AssertAreEqual(val, cache[j]);
j++;
}
}
/// <summary>
/// Create a new in-core index representation and read an index from disk.
/// <para />
/// The new index will be read before it is returned to the caller. Read
/// failures are reported as exceptions and therefore prevent the method from
/// returning a partially populated index.
/// </summary>
/// <param name="indexLocation">Location of the index file on disk.</param>
/// <returns> a cache representing the contents of the specified index file (if
/// it exists) or an empty cache if the file does not exist.
/// </returns>
/// <exception cref="IOException">
/// The index file is present but could not be read.
/// </exception>
/// <exception cref="CorruptObjectException">
/// The index file is using a format or extension that this
/// library does not support.
/// </exception>
public static DirCache read(FileInfo indexLocation)
{
var c = new DirCache(indexLocation);
c.read();
return c;
}
/// <summary>
/// Construct a new editor.
/// </summary>
/// <param name="dirCache">
/// The cache this editor will eventually update.
/// </param>
/// <param name="entryCount">
/// Estimated number of entries the editor will have upon
/// completion. This sizes the initial entry table.
/// </param>
public DirCacheEditor(DirCache dirCache, int entryCount)
: base(dirCache, entryCount)
{
_edits = new List <PathEdit>();
}
public void testUnsupportedRequiredExtension()
{
var dc = new DirCache(pathOf("gitgit.index.aaaa"));
try
{
dc.read();
Assert.Fail("Cache loaded an unsupported extension");
}
catch (CorruptObjectException err)
{
Assert.AreEqual("DIRC extension 'aaaa'"
+ " not supported by this version.", err.Message);
}
}
public void testUnsupportedOptionalExtension()
{
var dc = new DirCache(pathOf("gitgit.index.ZZZZ"));
dc.read();
Assert.AreEqual(1, dc.getEntryCount());
Assert.AreEqual("A", dc.getEntry(0).getPathString());
}
/// <summary>
/// Construct a new editor.
/// </summary>
/// <param name="dirCache">
/// The cache this editor will eventually update.
/// </param>
/// <param name="entryCount">
/// Estimated number of entries the editor will have upon
/// completion. This sizes the initial entry table.
/// </param>
public DirCacheEditor(DirCache dirCache, int entryCount)
: base(dirCache, entryCount)
{
_edits = new List<PathEdit>();
}
/// <summary>
/// Construct a new builder.
/// </summary>
/// <param name="dc">
/// the cache this builder will eventually update.
/// </param>
/// <param name="ecnt">
/// Estimated number of entries the builder will have upon
/// completion. This sizes the initial entry table.
/// </param>
public DirCacheBuilder(DirCache dc, int ecnt)
: base(dc, ecnt)
{
}
/// <summary>
/// Create a new in-core index representation, lock it, and read from disk.
/// <para />
/// The new index will be locked and then read before it is returned to the
/// caller. Read failures are reported as exceptions and therefore prevent
/// the method from returning a partially populated index. On read failure,
/// the lock is released.
/// </summary>
/// <param name="indexLocation">
/// location of the index file on disk.
/// </param>
/// <returns>
/// A cache representing the contents of the specified index file (if
/// it exists) or an empty cache if the file does not exist.
/// </returns>
/// <exception cref="IOException">
/// The index file is present but could not be read, or the lock
/// could not be obtained.
/// </exception>
/// <exception cref="CorruptObjectException">
/// the index file is using a format or extension that this
/// library does not support.
/// </exception>
public static DirCache Lock(FileInfo indexLocation)
{
var c = new DirCache(indexLocation);
if (!c.Lock())
{
throw new IOException("Cannot lock " + indexLocation);
}
try
{
c.read();
}
catch (Exception)
{
c.unlock();
throw;
}
return c;
}
/// <summary>
/// Construct a new editor.
/// </summary>
/// <param name="dc">
/// the cache this editor will eventually update.
/// </param>
/// <param name="ecnt">
/// estimated number of entries the editor will have upon
/// completion. This sizes the initial entry table.
/// </param>
protected BaseDirCacheEditor(DirCache dc, int ecnt)
{
_cache = dc;
_entries = new DirCacheEntry[ecnt];
}
