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It had already tried to do that, but with the independent
rounding of the number of '+' and '-' characters, it would
sometimes do 80-char lines after all.
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It just causes things like "git-apply --stat" to parse traditional
patch headers differently depending on what your index is, which
is nasty.
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The way broken deletes and creates are shown in the -p
(diff-patch) output format has become consistent with how
rename/copy edits are shown. They will show "dissimilarity
index" value, immediately following the "deleted file mode" and
"new file mode" lines.
The git-apply is taught to grok such an extended header.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It currently only verifies the index against the working directory,
it doesn't actually verify the diff fragments themselves yet.
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This means that filenames are totally unambiguous even if they
have spaces or tabs in them.
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Pure mode changes, and deletes or creates of empty files won't have this
information anywhere else.
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Slowly this is takign the form of a program that we'd actually
use. Now "git-apply --stat" basically ends up being a perfectly
useful diffstat.
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Hey, it's almost free by now, and it's a good way to see that
we parse the patches correctly.
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Make it a clear two-phase thing: first a read-only parse of
the patch itself (which is independent of any current index
information), and then the second phase actually uses the patch.
The second phase might not be a real apply, it could be just a
diffstat, for example. Which is trivial to do once the patch is
parsed.
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Not important but I am a bit annoyed by gcc complaining about the
control falling out of the function without returning value.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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There's some duplication of filenames when doing filename operations
(creates, deletes, renames and copies), and this makes us verify that
the pathnames match when they should.
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Right now we only use it to figure out what the filename might
be when that is ambiguous, but we'll get there..
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This makes it act more like a traditional UNIX thing (eg "cat").
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.. and print out the information. This sets up all the pathname
information, and whether it's a new file, deleted file, rename,
copy or whatever.
It's slowly getting to the point where it all comes together,
and we can actually apply all the information that we've gathered.
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In particular, give line numbers when detecting corrupt patches.
This makes the tool a lot more friendly (indeed, much more so
than regular "patch", I think).
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Don't just stop at them and look for the next header. Die,
die, die!
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This applies git patches (and old-style unified diffs)
in the index, rather than doing it in the working directory.
That allows for a lot more flexibility, and means that if a
patch fails, we aren't going to mess up the working directory.
NOTE! This is just the first cut at it, and right now it only
parses the incoming patch, it doesn't actually apply it yet.
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