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The new merge world order tells the merge strategies to leave
the cache unmerged and store the automerge result in the working
tree if automerge is not clean. This was done for the resolve
strategy and recursive strategy when no rename is involved, but
recording a conflicting merge in the rename case could not
easily be done by the recursive strategy.
This commit adds a new input format, in addition to the exsting
two, to "update-index --index-info".
(1) mode SP sha1 TAB path
The first format is what "git-apply --index-info"
reports, and used to reconstruct a partial tree
that is used for phony merge base tree when falling
back on 3-way merge.
(2) mode SP type SP sha1 TAB path
The second format is to stuff git-ls-tree output
into the index file.
(3) mode SP sha1 SP stage TAB path
This format is to put higher order stages into the
index file and matches git-ls-files --stage output.
To place a higher stage entry to the index, the path should
first be removed by feeding a mode=0 entry for the path, and
then feeding necessary input lines in the (3) format.
For example, starting with this index:
$ git ls-files -s
100644 8a1218a1024a212bb3db30becd860315f9f3ac52 0 frotz
$ git update-index --index-info ;# interactive session -- input follows...
0 0000000000000000000000000000000000000000 frotz
100644 8a1218a1024a212bb3db30becd860315f9f3ac52 1 frotz
100755 8a1218a1024a212bb3db30becd860315f9f3ac52 2 frotz
The first line of the input feeds 0 as the mode to remove the
path; the SHA1 does not matter as long as it is well formatted.
Then the second and third line feeds stage 1 and stage 2 entries
for that path. After the above, we would end up with this:
$ git ls-files -s
100644 8a1218a1024a212bb3db30becd860315f9f3ac52 1 frotz
100755 8a1218a1024a212bb3db30becd860315f9f3ac52 2 frotz
This completes the groundwork for the new merge world order.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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git-update-index --index-info can almost be usable to read from ls-tree
output to update the index (and not the working tree file) to HEAD commit,
but not quite. It was designed to read from git-apply --index-info
output, and does not want " blob " in ls-tree output. Accept that as well.
This lets us update "git-checkout <ent> <path>" that used to filter the
extra " blob " string out. Noted by Luben.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Removed unknown [--version] option.
Signed-off-by: Chris Shoemaker <c.shoemaker@cox.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This patch adds usage string to git-update-index, can be printed by the -h
or --help parameter.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Although the sole current user uses -z to read this, we should be
prepared for somebody to feed non-z format to the command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This makes it possible to add paths that have funny characters (TAB
and LF) in them, and makes adding many paths more efficient in
general.
New flag "--stdin" to update-index was initially added for different
purpose, but it turns out to be a perfect match for feeding "ls-files
--others -z" output to improve "git add".
It also adds "--verbose" flag to update-index for use with "git add"
command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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With "[core] filemode = false", you can tell git to ignore
differences in the working tree file only in executable bit.
* "git-update-index --refresh" does not say "needs update" if index
entry and working tree file differs only in executable bit.
* "git-update-index" on an existing path takes executable bit
from the existing index entry, if the path and index entry are
both regular files.
* "git-diff-files" and "git-diff-index" without --cached flag
pretend the path on the filesystem has the same executable
bit as the existing index entry, if the path and index entry
are both regular files.
If you are on a filesystem with unreliable mode bits, you may need to
force the executable bit after registering the path in the index.
* "git-update-index --chmod=+x foo" flips the executable bit of the
index file entry for path "foo" on. Use "--chmod=-x" to flip it
off.
Note that --chmod only works in index file and does not look at nor
update the working tree.
So if you are on a filesystem and do not have working executable bit,
you would do:
1. set the appropriate .git/config option;
2. "git-update-index --add new-file.c"
3. "git-ls-files --stage new-file.c" to see if it has the desired
mode bits. If not, e.g. to drop executable bit picked up from the
filesystem, say "git-update-index --chmod=-x new-file.c".
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Junio C Hamano <junkio@cox.net>
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This adds more cruft to diff --git header to record the blob SHA1 and
the mode the patch/diff is intended to be applied against, to help the
receiving end fall back on a three-way merge. The new header looks
like this:
diff --git a/apply.c b/apply.c
index 7be5041..8366082 100644
--- a/apply.c
+++ b/apply.c
@@ -14,6 +14,7 @@
// files that are being modified, but doesn't apply the patch
// --stat does just a diffstat, and doesn't actually apply
+// --show-index-info shows the old and new index info for...
...
Upon receiving such a patch, if the patch did not apply cleanly to the
target tree, the recipient can try to find the matching old objects in
her object database and create a temporary tree, apply the patch to
that temporary tree, and attempt a 3-way merge between the patched
temporary tree and the target tree using the original temporary tree
as the common ancestor.
The patch lifts the code to compute the hash for an on-filesystem
object from update-index.c and makes it available to the diff output
routine.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This makes "git-update-index" avoid the new index file write if it didn't
make any changes to the index.
It still doesn't make things like "git status" be read-only operations in
general, but if the index file doesn't need refreshing, it now will at
least avoid making unnecessary changes.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Instead of "git status" ignoring (and hiding) potential errors from the
"git-update-index" call, make it exit if it fails, and show the error.
In order to do this, use the "-q" flag (to ignore not-up-to-date files)
and add a new "--unmerged" flag that allows unmerged entries in the index
without any errors.
This also avoids marking the index "changed" if an entry isn't actually
modified, and makes sure that we exit with an understandable error message
if the index is corrupt or unreadable. "read_cache()" no longer returns an
error for the caller to check.
Finally, make die() and usage() exit with recognizable error codes, if we
ever want to check the failure reason in scripts.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The new option --stdin reads list of paths to be updated from the
standard input. As usual, -z means the paths are terminated with NUL
characters, as opposed to LF without that option.
This is useful to use git-diff-files -z and git-ls-files -z when the
platform xargs does not support -0 option, and obviously saves one
process even when xargs can take -0.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This is a long overdue clean-up to the code for parsing and passing
diff options. It also tightens some constness issues.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Add -m/--modified to show files that have been modified wrt. the index.
[jc: The original came from Brian Gerst on Sep 1st but it only checked
if the paths were cache dirty without actually checking the files were
modified. I also added the usage string and a new test.]
Signed-off-by: Junio C Hamano <junkio@cox.net>
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If the length in the stat information does not match what is recorded
in the index, there is no point rehashing the contents to see if the
index entry can be refreshed.
We need to be a bit careful. Immediately after read-tree or
checkout-index without -u, ce_size is set to zero and does not match
the length of the blob that is recorded, and we need to actually look
at the contents to see if it has been changed.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This makes git-update-index error reporting much less confusing. The
user will know what went wrong with better precision, and will be given
a hopefully less confusing advice.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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As promised, this is the "big tool rename" patch. The primary differences
since 0.99.6 are:
(1) git-*-script are no more. The commands installed do not
have any such suffix so users do not have to remember if
something is implemented as a shell script or not.
(2) Many command names with 'cache' in them are renamed with
'index' if that is what they mean.
There are backward compatibility symblic links so that you and
Porcelains can keep using the old names, but the backward
compatibility support is expected to be removed in the near
future.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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