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We still need to check which part of the sub-tree is interesting.
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We used to trigger the "interesting subdirectory" check for any
matching name that started with the same character series, regardless
of whether it had the matching slash or not.
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We can't just do the "sha1_to_hex()" thing directly, since the
buffer in question will be overwritten by the name of the parent.
So teach diff_tree_commit() to generate the proper hex name itself.
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We use "--" to mark end of command line switches, not "-". Also,
allow more flexibility in the passed-in sha1 names, in that a
single sha1 uses the "commit-diff" logic that compares against
its parent(s).
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Split it into the "one commit" vs "two trees" case, since we'll
want to use the "one commit" case for other things too.
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This updates the usage message string and Documentation/core-git.txt
to describe the new flags added to the git-diff-tree command.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This allows you to trivially do fancy and readable output. Something like
git-rev-list HEAD | git-diff-tree -p -v --stdin kernel/ | less -S
gives a nice output of what has changed in the kernel/ subdirectory lately.
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This only shows the tree headers when something actually changed. Also,
add a "silent" mode, which doesn't actually show the changes at all,
just the commit information.
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This means that you can do
git-rev-list HEAD --max-count=10 | git-diff-tree --stdin update-cache.c
to see which (if any) of the last ten commits changed update-cache.c.
Use the "-m" flag to see merges too. Normally they are suppressed.
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Mention the '-p' option in the usage help string of git-diff-tree.
Signed-Off-by: Thomas Glanzmann <sithglan@stud.uni-erlangen.de>
Signed-Off-by: Linus Torvalds <torvalds@osdl.org>
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This allows the programs to use various simplified versions of
the SHA1 names, eg just say "HEAD" for the SHA1 pointed to by
the .git/HEAD file etc.
For example, this commit has been done with
git-commit-tree $(git-write-tree) -p HEAD
instead of the traditional "$(cat .git/HEAD)" syntax.
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This patch renames read_tree_with_tree_or_commit_sha1() to
read_object_with_reference() and extends it to automatically
dereference not just "commit" objects but "tag" objects. With
this patch, you can say e.g.:
ls-tree $tag
read-tree -m $(merge-base $tag $HEAD) $tag $HEAD
diff-cache $tag
diff-tree $tag $HEAD
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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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>
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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>
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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>
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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>
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Usage string fixes to make maintenance easier (only one instance
of a string to update not multiple copies). I've spotted and
corrected inconsistent usage text in diff-tree while doing this.
Also diff-cache and read-tree usage text have been corrected to
match their up-to-date features. Earlier, neither "--cached"
form of diff-cache nor "-m single-merge" form of read-tree were
described.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Updates diff-tree.c to use read_tree_with_tree_or_commit_sha1()
function. The command can take either tree or commit IDs with this patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Sometimes it's just easier to not have to look up the "commit"->"tree"
translation by hand first. It's trivial to do inside diff-tree, and
it's just being polite.
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Default to the human-readable '\n', but make the scriptable "-z" flag
do the old '\0' behaviour.
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Changes diff-tree output format so that fields are separated by tabs instead of
spaces (readibility, parseability), and tree entry type is listed along the
entry (avoids having to figure that out from the mode in the scripts).
This is what my scripts expect.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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Fix diff-tree usage, since it takes -r instead of -R now.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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Trivial whitespace fixes.
From: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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Now there is error() for "library" errors and die() for fatal "application"
errors. usage() is now used strictly only for usage errors.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
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No, this doesn't make them easy to use, but makes diff-tree use
the "-r" flag for "recursive" (not "-R") and makes commit-tree
use AUTHOR_xxx environment flags (not COMMITTER_xxx) to match what
it actually does.
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And, perhaps more importantly, fix the fact that if a filename changed from a
directory to a file (or vice versa), we must consider it a delete and an add,
not a "filechange".
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During original development I had different name-bases for source and
destination, so that I could make the output show how it got removed
from "tree a" and added to "tree b", but we don't want that. We only
do recursive diffs on anything where the bases are exactly the same,
so we might as well just work with a single base.
Also, make the output for "changed" be a single line, since people
hated the separate '<' / '>' format. They were right. It sucked.
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trees
as it diffs them.
This makes diff-tree usable again in the new world order.
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Very useful for creating diffs efficiently, and in general to see what has
changed in the namespace.
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