When diff-cache -p and friends are interrupted, they can leave
their temporary files behind. Also when the external diff
program is killed instead of exiting (this usually happens when
piping the output to a pager, which can cause SIGPIPE when the
user quits viewing the diff early), they incorrectly died
without cleaning their temporary file.
This fixes these problems.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
My bad. diff-tree-helper reports all unmerged paths even when
the command line specifies to filter the paths. This patch
fixes it. Also reverse-diff option was left out during the last
round, which this patch restores as well.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This changes the way the default arguments to diff are built when
diff-cache and friends are invoked with -p and there is no
GIT_EXTERNAL_DIFF environment variable. It attempts to be more cg-patch
friendly by:
- Showing diffs against /dev/null to denote added or removed
files;
- Showing file modes for existing files as a comment after the
diff label.
Unfortunately with this change GIT_DIFF_CMD customization cannot
be supported easily anymore, so it has been dropped.
GIT_DIFF_OPTS customization to change diffs from unified to
context is still there, though.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
With support for parse_object() and tags in the core, fsck_cache can just
call them, and can be simplified a bit.
Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds a function that parses an object from the database when we have
to look up its actual type. It also checks the hash of the file, due to
its heritage as part of fsck-cache.
Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds preliminary support for tags in the library. It doesn't even
store the signature, however, let alone provide any way of checking it.
Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This eliminates the special case for blobs versus other types of
objects. Now the scheme is entirely regular and I won't introduce stupid
bugs. (And fsck-cache doesn't have to do the do-nothing parse)
Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This makes diff-tree -p imply recursive behaviour.
Other commands in the family always takes a flat universe view
so this is not even needed.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Now diff-tree can produce patch itself, there is no reason to
depend on Cogito to show diff in the git-export output anymore.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
With the recent "no-patch-by-default" change, the -s flag to the
show-diff command (and silent variable in the show-diff.c) became
meaningless. This deprecates it.
Cogito uses "show-diff -s" for the purpose of "I do not want the patch
text. I just want to know if something has potentially changed, in
which case I know you will have some output. I'll run update-cache
--refresh if you say something", so we cannot barf on seeing -s on our
command line yet.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This makes rsh.c compile on Darwin/MacOSX (and might possibly help on
some Linux distributions too).
sys/socket.h needs sys/types.h
Signed-off-by: Andreas Gal <gal@uci.edu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The "base" string already contains any finishing "/", so the way
to get the full pathname is to just concatenate the base and
path directly, with no extra slashes in between.
Junio pointed out that diff-cache didn't handle the case of a new file
that was different from its index entry correctly. It needs to check
the working copy the same way the modified file case did.
This teaches diff-tree-helper to call diff_unmerge() so that it can
report unmerged paths to GIT_EXTERNAL_DIFF, instead of consuming it on
its own.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This uses the reworked diff interface to generate patches directly out
of diff-cache when -p is specified.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This uses the reworked diff interface to generate patches directly out
of diff-tree when -p is specified.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This uses the reworked diff interface to generate patches directly out
of show-diff when -p is specified.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This introduces three public functions for diff-cache and friends can
use to call out to the GIT_EXTERNAL_DIFF program when they wish to.
A normal "add/remove/change" entry is turned into 7-parameter process
invocation of GIT_EXTERNAL_DIFF program as before. In addition, the
program can now be called with a single parameter when diff-cache and
friends want to report an unmerged path.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We've always warned about them properly, but we would then do the
wrong thing if that filename existed in the tree we were comparing
against (we'd think the file has been deleted, because we forgot
about the unmerged cases).
This makes diff-tree-helper handle ("warn about") unmerged path entries
U <path> <record-terminator>
This is emitted once per unmerged path, no matter how many unmerged
stages there are.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When the trivial "read-tree" merge fails, fall back on the (equally
trivial) automatic merge script instead of forcing the user to do
it by hand.
When _that_ fails, you get to do a manual merge.
Introduce xmalloc and xrealloc to die gracefully with a descriptive
message when out of memory, rather than taking a SIGSEGV.
Signed-off-by: Christopher Li<chrislgit@chrisli.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff-cache attempts to first remove all merge entries before letting the
diff_cache() do its work, but it incorrectly stops after the first
merge-entry it finds.
Fix by just replacing the "break" with a "continue".
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This reworks the diff-tree-helper and show-diff to further make external
diff command interface simpler.
These commands now honor GIT_EXTERNAL_DIFF environment variable which
can point at an arbitrary program that takes 7 parameters:
name file1 file1-sha1 file1-mode file2 file2-sha1 file2-mode
The parameters for an external diff command are as follows:
name this invocation of the command is to emit diff
for the named cache/tree entry.
file1 pathname that holds the contents of the first
file. This can be a file inside the working
tree, or a temporary file created from the blob
object, or /dev/null. The command should not
attempt to unlink it -- the temporary is
unlinked by the caller.
file1-sha1 sha1 hash if file1 is a blob object, or "."
otherwise.
file1-mode mode bits for file1, or "." for a deleted file.
If GIT_EXTERNAL_DIFF environment variable is not set, the
default is to invoke diff with the set of parameters old
show-diff used to use. This built-in implementation honors the
GIT_DIFF_CMD and GIT_DIFF_OPTS environment variables as before.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch introduces a new program, diff-tree-helper. It reads
output from diff-cache and diff-tree, and produces a patch file.
The diff format customization can be done the same way the
show-diff uses; the same external diff interface introduced by
the previous patch to drive diff from show-diff is used so this
is not surprising.
It is used like the following examples:
$ diff-cache --cached -z <tree> | diff-tree-helper -z -R paths...
$ diff-tree -r -z <tree1> <tree2> | diff-tree-helper -z paths...
- As usual, the use of the -z flag is recommended in the script
to pass NUL-terminated filenames through the pipe between
commands.
- The -R flag is used to generate reverse diff. It does not
matter for diff-tree case, but it is sometimes useful to get
a patch in the desired direction out of diff-cache.
- The paths parameters are used to restrict the paths that
appears in the output. Again this is useful to use with
diff-cache, which, unlike diff-tree, does not take such paths
restriction parameters.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
With this patch, the non-core'ish part of show-diff command that
invokes an external "diff" comand to obtain patches is split
into a separate file. The next patch will introduce a new
command, diff-tree-helper, which uses this common diff interface
to format diff-tree and diff-cache output into a patch form.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The git archives have some old-date-format commits with timezones
that the converter didn't recognize. Also, make it be quiet about
already-converted dates.
This adds an --ignore-missing option to update-cache, which makes it
ignore missing files. Together with the "-n" option to checkout-cache,
it allows me to do
checkout-cache -n -f -a && update-cache --ignore-missing --refresh
which only updates and refreshes the files I already have checked out.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds the "-n" option to checkout-cache which tells it to not check
out new files, only refresh files already checked out.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We should _not_ mark a blob object "parsed" just because we
looked it up: it gets marked that way only once we've actually
seen it. Otherwise we can never notice a missing blob.
Here is how to trigger it:
echo blob 100 > .git/objects/00/ae4e8d3208e09f2cf7a38202a126f728cadb49
Then run fsck-cache. It will try to unpack after the header to calculate
the hash, inflate returns total_out == 0 and memcpy() dies.
The patch below seems to work with ZLIB 1.1 and 1.2.
Signed-off-by: Andreas Gal <gal@uci.edu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is based on a patch by David Woodhouse, but with the selection
tests much simplified and streamlined.
It makes diff-tree take extra arguments, specifying the files or
directories which should be considered "interesting". Changes in
uninteresting directories are not reported.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Junio C Hamano