protected static GitSharp.Patch.Patch ParseTestPatchFile(string patchFile)
{
try
{
using (var inStream = new FileStream(patchFile, System.IO.FileMode.Open))
{
var p = new GitSharp.Patch.Patch();
p.parse(inStream);
return p;
}
}
catch(IOException)
{
Assert.Fail("No " + patchFile + " test vector");
return null; // Never happens
}
}
public void testEmpty()
{
GitSharp.Patch.Patch p = new GitSharp.Patch.Patch();
Assert.IsTrue(p.getFiles().Count == 0);
Assert.IsTrue(p.getErrors().Count == 0);
}
public virtual int parseBody(Patch script, int end)
{
byte[] buf = _file.Buffer;
int c = RawParseUtils.nextLF(buf, _startOffset), last = c;
_oldImage.LinesDeleted = 0;
_oldImage.LinesAdded = 0;
for (; c < end; last = c, c = RawParseUtils.nextLF(buf, c))
{
bool breakScan;
switch (buf[c])
{
case (byte)' ':
case (byte)'\n':
LinesContext++;
continue;
case (byte)'-':
_oldImage.LinesDeleted++;
continue;
case (byte)'+':
_oldImage.LinesAdded++;
continue;
case (byte)'\\': // Matches "\ No newline at end of file"
continue;
default:
breakScan = true;
break;
}
if (breakScan)
{
break;
}
}
if (last < end && LinesContext + _oldImage.LinesDeleted - 1 == _oldImage.LineCount
&& LinesContext + _oldImage.LinesAdded == NewLineCount
&& RawParseUtils.match(buf, last, Patch.SigFooter) >= 0)
{
// This is an extremely common occurrence of "corruption".
// Users add footers with their signatures After this mark,
// and git diff adds the git executable version number.
// Let it slide; the hunk otherwise looked sound.
//
_oldImage.LinesDeleted--;
return last;
}
if (LinesContext + _oldImage.LinesDeleted < _oldImage.LineCount)
{
int missingCount = _oldImage.LineCount - (LinesContext + _oldImage.LinesDeleted);
script.error(buf, _startOffset, "Truncated hunk, at least "
+ missingCount + " old lines is missing");
}
else if (LinesContext + _oldImage.LinesAdded < NewLineCount)
{
int missingCount = NewLineCount - (LinesContext + _oldImage.LinesAdded);
script.error(buf, _startOffset, "Truncated hunk, at least "
+ missingCount + " new lines is missing");
}
else if (LinesContext + _oldImage.LinesDeleted > _oldImage.LineCount
|| LinesContext + _oldImage.LinesAdded > NewLineCount)
{
string oldcnt = _oldImage.LineCount + ":" + NewLineCount;
string newcnt = (LinesContext + _oldImage.LinesDeleted) + ":"
+ (LinesContext + _oldImage.LinesAdded);
script.warn(buf, _startOffset, "Hunk header " + oldcnt
+ " does not match body line count of " + newcnt);
}
return c;
}
public int parseBody(Patch script, int end) {
byte[] buf = file.buf;
int c = RawParseUtils.nextLF(buf, startOffset), last = c;
old.nDeleted = 0;
old.nAdded = 0;
bool break_scan = false;
for (; c < end; last = c, c = RawParseUtils.nextLF(buf, c))
{
switch (buf[c])
{
case (byte)' ':
case (byte)'\n':
nContext++;
continue;
case (byte)'-':
old.nDeleted++;
continue;
case (byte)'+':
old.nAdded++;
continue;
case (byte)'\\': // Matches "\ No newline at end of file"
continue;
default:
break_scan = true;
break;
}
if (break_scan)
break;
}
if (last < end && nContext + old.nDeleted - 1 == old.lineCount
&& nContext + old.nAdded == newLineCount
&& RawParseUtils.match(buf, last, Patch.SIG_FOOTER) >= 0)
{
// This is an extremely common occurrence of "corruption".
// Users add footers with their signatures after this mark,
// and git diff adds the git executable version number.
// Let it slide; the hunk otherwise looked sound.
//
old.nDeleted--;
return last;
}
if (nContext + old.nDeleted < old.lineCount)
{
int missingCount = old.lineCount - (nContext + old.nDeleted);
script.error(buf, startOffset, "Truncated hunk, at least "
+ missingCount + " old lines is missing");
}
else if (nContext + old.nAdded < newLineCount)
{
int missingCount = newLineCount - (nContext + old.nAdded);
script.error(buf, startOffset, "Truncated hunk, at least "
+ missingCount + " new lines is missing");
}
else if (nContext + old.nDeleted > old.lineCount
|| nContext + old.nAdded > newLineCount)
{
string oldcnt = old.lineCount + ":" + newLineCount;
string newcnt = (nContext + old.nDeleted) + ":"
+ (nContext + old.nAdded);
script.warn(buf, startOffset, "Hunk header " + oldcnt
+ " does not match body line count of " + newcnt);
}
return c;
}
public override int parseBody(Patch script, int end)
{
byte[] buf = File.Buffer;
int c = RawParseUtils.nextLF(buf, StartOffset);
_old.ForEach(coi =>
{
coi.LinesAdded = 0;
coi.LinesDeleted = 0;
coi.LinesContext = 0;
});
LinesContext = 0;
int nAdded = 0;
for (int eol; c < end; c = eol)
{
eol = RawParseUtils.nextLF(buf, c);
if (eol - c < _old.Count + 1)
{
// Line isn't long enough to mention the state of each
// ancestor. It must be the end of the hunk.
break;
}
bool break_scan = false;
switch (buf[c])
{
case (byte)' ':
case (byte)'-':
case (byte)'+':
break;
default:
// Line can't possibly be part of this hunk; the first
// ancestor information isn't recognizable.
//
break_scan = true;
break;
}
if (break_scan)
break;
int localcontext = 0;
for (int ancestor = 0; ancestor < _old.Count; ancestor++)
{
switch (buf[c + ancestor])
{
case (byte)' ':
localcontext++;
_old[ancestor].LinesContext++;
continue;
case (byte)'-':
_old[ancestor].LinesDeleted++;
continue;
case (byte)'+':
_old[ancestor].LinesAdded++;
nAdded++;
continue;
default:
break_scan = true;
break;
}
if (break_scan)
break;
}
if (break_scan)
break;
if (localcontext == _old.Count)
{
LinesContext++;
}
}
for (int ancestor = 0; ancestor < _old.Count; ancestor++)
{
CombinedOldImage o = _old[ancestor];
int cmp = o.LinesContext + o.LinesDeleted;
if (cmp < o.LineCount)
{
int missingCnt = o.LineCount - cmp;
script.error(buf, StartOffset, "Truncated hunk, at least "
+ missingCnt + " lines is missing for ancestor "
+ (ancestor + 1));
}
}
if (LinesContext + nAdded < NewLineCount)
{
int missingCount = NewLineCount - (LinesContext + nAdded);
script.error(buf, StartOffset, "Truncated hunk, at least "
+ missingCount + " new lines is missing");
}
return c;
}
