/// <summary>Formats a list of edits in unified diff format</summary>
/// <param name="edits">some differences which have been calculated between A and B</param>
/// <param name="a">the text A which was compared</param>
/// <param name="b">the text B which was compared</param>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
public virtual void Format(EditList edits, RawText a, RawText b)
{
for (int curIdx = 0; curIdx < edits.Count;)
{
Edit curEdit = edits[curIdx];
int endIdx = FindCombinedEnd(edits, curIdx);
Edit endEdit = edits[endIdx];
int aCur = Math.Max(0, curEdit.GetBeginA() - context);
int bCur = Math.Max(0, curEdit.GetBeginB() - context);
int aEnd = Math.Min(a.Size(), endEdit.GetEndA() + context);
int bEnd = Math.Min(b.Size(), endEdit.GetEndB() + context);
WriteHunkHeader(aCur, aEnd, bCur, bEnd);
while (aCur < aEnd || bCur < bEnd)
{
if (aCur < curEdit.GetBeginA() || endIdx + 1 < curIdx)
{
WriteContextLine(a, aCur);
if (IsEndOfLineMissing(a, aCur))
{
@out.Write(noNewLine);
}
aCur++;
bCur++;
}
else
{
if (aCur < curEdit.GetEndA())
{
WriteRemovedLine(a, aCur);
if (IsEndOfLineMissing(a, aCur))
{
@out.Write(noNewLine);
}
aCur++;
}
else
{
if (bCur < curEdit.GetEndB())
{
WriteAddedLine(b, bCur);
if (IsEndOfLineMissing(b, bCur))
{
@out.Write(noNewLine);
}
bCur++;
}
}
}
if (End(curEdit, aCur, bCur) && ++curIdx < edits.Count)
{
curEdit = edits[curIdx];
}
}
}
}
public virtual void TestCreateFileHeader_Add()
{
ObjectId adId = Blob("a\nd\n");
DiffEntry ent = DiffEntry.Add("FOO", adId);
FileHeader fh = df.ToFileHeader(ent);
string diffHeader = "diff --git a/FOO b/FOO\n" + "new file mode " + REGULAR_FILE
+ "\n" + "index " + ObjectId.ZeroId.Abbreviate(8).Name + ".." + adId.Abbreviate(
8).Name + "\n" + "--- /dev/null\n" + "+++ b/FOO\n";
//
//
//
NUnit.Framework.Assert.AreEqual(diffHeader, RawParseUtils.Decode(fh.GetBuffer()));
NUnit.Framework.Assert.AreEqual(0, fh.GetStartOffset());
NUnit.Framework.Assert.AreEqual(fh.GetBuffer().Length, fh.GetEndOffset());
NUnit.Framework.Assert.AreEqual(FileHeader.PatchType.UNIFIED, fh.GetPatchType());
NUnit.Framework.Assert.AreEqual(1, fh.GetHunks().Count);
HunkHeader hh = fh.GetHunks()[0];
NUnit.Framework.Assert.AreEqual(1, hh.ToEditList().Count);
EditList el = hh.ToEditList();
NUnit.Framework.Assert.AreEqual(1, el.Count);
Edit e = el[0];
NUnit.Framework.Assert.AreEqual(0, e.GetBeginA());
NUnit.Framework.Assert.AreEqual(0, e.GetEndA());
NUnit.Framework.Assert.AreEqual(0, e.GetBeginB());
NUnit.Framework.Assert.AreEqual(2, e.GetEndB());
NUnit.Framework.Assert.AreEqual(Edit.Type.INSERT, e.GetType());
}
public virtual void TestCreateFileHeader_Modify()
{
ObjectId adId = Blob("a\nd\n");
ObjectId abcdId = Blob("a\nb\nc\nd\n");
string diffHeader = MakeDiffHeader(PATH_A, PATH_A, adId, abcdId);
DiffEntry ad = DiffEntry.Delete(PATH_A, adId);
DiffEntry abcd = DiffEntry.Add(PATH_A, abcdId);
DiffEntry mod = DiffEntry.Pair(DiffEntry.ChangeType.MODIFY, ad, abcd, 0);
FileHeader fh = df.ToFileHeader(mod);
NUnit.Framework.Assert.AreEqual(diffHeader, RawParseUtils.Decode(fh.GetBuffer()));
NUnit.Framework.Assert.AreEqual(0, fh.GetStartOffset());
NUnit.Framework.Assert.AreEqual(fh.GetBuffer().Length, fh.GetEndOffset());
NUnit.Framework.Assert.AreEqual(FileHeader.PatchType.UNIFIED, fh.GetPatchType());
NUnit.Framework.Assert.AreEqual(1, fh.GetHunks().Count);
HunkHeader hh = fh.GetHunks()[0];
NUnit.Framework.Assert.AreEqual(1, hh.ToEditList().Count);
EditList el = hh.ToEditList();
NUnit.Framework.Assert.AreEqual(1, el.Count);
Edit e = el[0];
NUnit.Framework.Assert.AreEqual(1, e.GetBeginA());
NUnit.Framework.Assert.AreEqual(1, e.GetEndA());
NUnit.Framework.Assert.AreEqual(1, e.GetBeginB());
NUnit.Framework.Assert.AreEqual(3, e.GetEndB());
NUnit.Framework.Assert.AreEqual(Edit.Type.INSERT, e.GetType());
}
public virtual void TestCreate()
{
Edit e = new Edit(1, 2, 3, 4);
NUnit.Framework.Assert.AreEqual(1, e.GetBeginA());
NUnit.Framework.Assert.AreEqual(2, e.GetEndA());
NUnit.Framework.Assert.AreEqual(3, e.GetBeginB());
NUnit.Framework.Assert.AreEqual(4, e.GetEndB());
}
public virtual void TestCreate()
{
Edit e = new Edit(1, 2, 3, 4);
NUnit.Framework.Assert.AreEqual(1, e.GetBeginA());
NUnit.Framework.Assert.AreEqual(2, e.GetEndA());
NUnit.Framework.Assert.AreEqual(3, e.GetBeginB());
NUnit.Framework.Assert.AreEqual(4, e.GetEndB());
}
public virtual void TestCreateEmpty()
{
Edit e = new Edit(1, 3);
NUnit.Framework.Assert.AreEqual(1, e.GetBeginA());
NUnit.Framework.Assert.AreEqual(1, e.GetEndA());
NUnit.Framework.Assert.AreEqual(3, e.GetBeginB());
NUnit.Framework.Assert.AreEqual(3, e.GetEndB());
NUnit.Framework.Assert.IsTrue(e.IsEmpty(), "is empty");
NUnit.Framework.Assert.AreEqual(Edit.Type.EMPTY, e.GetType());
}
public virtual void TestCreateEmpty()
{
Edit e = new Edit(1, 3);
NUnit.Framework.Assert.AreEqual(1, e.GetBeginA());
NUnit.Framework.Assert.AreEqual(1, e.GetEndA());
NUnit.Framework.Assert.AreEqual(3, e.GetBeginB());
NUnit.Framework.Assert.AreEqual(3, e.GetEndB());
NUnit.Framework.Assert.IsTrue(e.IsEmpty(), "is empty");
NUnit.Framework.Assert.AreEqual(Edit.Type.EMPTY, e.GetType());
}
public HunkRangeInfo(ITextSnapshot snapshot, Edit edit, RawText originalText, RawText workingText)
{
if (snapshot == null)
throw new ArgumentNullException("snapshot");
if (edit == null)
throw new ArgumentNullException("edit");
if (originalText == null)
throw new ArgumentNullException("originalText");
if (workingText == null)
throw new ArgumentNullException("workingText");
_snapshot = snapshot;
_edit = edit;
_originalText = originalText.GetString(edit.GetBeginA(), edit.GetEndA(), true).Split('\n').Select(i => i.TrimEnd('\r')).ToList();
_canRollback = true;
}