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and other newfangled things like merging.
Also, talk more about the actual operations, and give some
rough examples of what you can do.
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The patch to introduce shell safety to show-diff has an
off-by-one error. Here is an fix.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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any unmerged files.
This one doesn't actually do the merging, but it makes it
easy to script the programs that do using it.
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Fix remove_specials for real. The second half logic needs the original
head of the string.
Signed-off-by: Brad Roberts <braddr@puremagic.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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They don't "exist" yet, and you need to merge them first.
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Apparently some distributions tend to have space for phone numbers etc there.
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This allows fsck to verify not just that an object exists, but
also that it has the type it was expected to have.
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Let's not allow trivially bogus commits. I did one for the first
trial of the first kernel git merge. fsck found it ok, but..
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Also, make it a fatal error to pass in a non-commit object. The callers
never checked, so better check here.
This simplifies merge-base further. It's now so trivial that it's almost
ridiculous.
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parent of two commits.
The question of "best" commit can probably be tweaked almost arbitrarily.
In particular, trying to take things like how big the tree differences
are into account migt be a good idea. This one is just very simple.
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It used to have its own specialized version for marking the
sub-reachability bits.
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- mark_reachable() can be more generic, marking the reachable revisions
with an arbitrary mask.
- date parsing will parse to a date of 0 rather than ULONG_MAX for the
bad old case, sorting the dates correctly.
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This also drops the old-style date parsing. We just don't care
enough, since we dropped that format pretty early.
Yes, this could do with some cleanup, and a common library file.
Some day.
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Fix a memory leak in write-tree.c, not freeing the directory buffer.
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This fixes show-diff listing all +x files as differring.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
[ That's what I get for working on a G5 - my testing was all
big-endian in the first place. -- Linus ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The function index_fd() in update-cache.c takes 5 arguments, but
two is not necessary and one that is a pointer to a structure
really needs to be a pointer to one member of that structure.
This patch cleans it up.
Also it removes printf() apparently left after initial
debugging.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The checkout-cache command says "file is not in the cache" when
an unmerged path is given. This patch adds code to distinguish
the unmerged and the nonexistent cases and gives an appropriate
error message.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Use the proper octal mode naming instead of random decimal
crud, and don't reset the mode after the create with fchmod:
the whole point was to let "umask" do its thing.
Duh.
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When update-cache --remove is run, resolve unmerged state for
the path. This is consistent with the update-cache --add
behaviour. Essentially, the user is telling us how he wants to
resolve the merge by running update-cache.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Fixed to do the right thing at the end.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This is my bad. I added #include <ctype.h> to the file,
which I ended up not using and failed to remove it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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We only really care about the difference between a file being executable
or not (by its owner). Everything else we leave for the user umask to
decide.
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When run on unmerged dircache, show-diff compares the working
file with each non-empty stage for that path. Two out of three
times, this is not very helpful. This patch makes it report the
unmergedness only once per each path and avoids running the
actual diff.
Upper layer SCMs like Cogito are expected to find out mode/SHA1
for each stage by using "show-files --stage" and run the diff
itself. This would result in more sensible diffs.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This fixes some stylistic problems introduced by my previous set
of patches. I'll be sending my last patch to show-diff next,
which depends on this cleanup.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The show-diff command uses a variable "new" but it is always
used to point at the original data recorded in the dircache
before the user started editing in the working file. Rename it
to "old" to avoid confusion.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The command line for running "diff" command is built without
taking shell metacharacters into account. A malicious dircache
entry "foo 2>bar" (yes, a filename with space) would result in
creating a file called "bar" with the error message "diff: foo:
No such file or directory" in it.
This is not just a user screwing over himself. Such a dircache
can be created as a result of a merge with tree from others.
Here is a fix.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This patch adds the -z option to the show-diff command,
primarily for use by scripts. The information emitted is
similar to that of -q option, but in a more machine readable
form. Records are terminated with NUL instead of LF, so that
the scripts can deal with pathnames with embedded newlines.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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SCMs have ways to say "I want diff only this particular file",
or "I want diff files under this directory". This patch teaches
show-diff to do something similar. Without command line
arguments, it still examines everything in the dircache as
before.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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ls-tree unconditionally called read_sha1_file() for all paths
even when not needed, which was a mistake introduced by me.
Rectify this by first checking S_ISDIR(mode) and read the tree
contents only when it is a tree and we are recursive. There is
no need to read it in any other cases.
The patch also removes the confusing comment that led to this
incorrect implementation.
Thanks to Peter Baudis for noticing this problem.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The flag also implies "--stage", since unmerged file information doesn't
make sense without the full output.
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It's there in the history if somebody wants to resurrect it, but it
seems to have been successfully superceded by the new and improved
index-merge thing, where we do all merging entirely in the index.
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This allows you to actually tell git that you've resolved a conflict.
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This cuts down the work for the "real merge" to stuff where
people might actually disagree on the algorithm. The trivial
cases would seem to be totally independent of any policy.
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This adds --stage option to show-files command. It shows
file-mode, SHA1, stage and pathname. Record separator follows
the usual convention of -z option as before.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The ce_namelen field has been renamed to ce_flags and split into
the top 2-bit unused, next 2-bit stage number and the lowest
12-bit name-length, stored in the network byte order. A new
macro create_ce_flags() is defined to synthesize this value from
length and stage, but it forgets to turn the value into the
network byte order. Here is a fix.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Normally you'd use state 0 for the "merged" state, and start out with
state 1 being "origin", state 2 being "first tree" and state 3 being
"second tree".
Once all the index entries are back in state 0, we have a successful
merge and can write the result tree back.
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This is what allows us to have multiple states of the same file in
the index, and what makes it always sort correctly.
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Of course, we can't even generate such an index yet, but give me
some time. This is a cunning plan. Let's see if it actually works.
(I feel like Wile E Coyote, waiting for the big rock to fall).
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This will allow us to have the same name in different "states" in the
index at the same time. Which in turn seems to be a very simple way to
merge.
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The cache-entry names are all proper strings, no need to worry about
their length.
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This adds '-z' to merge-tree and changes its default line termination to
LF to make it consistent with your other recent changes.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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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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This adds the '-q' option for show-diff.c to squelch complaints for
missing files.
It is handy if you want to run it in the merge temporary directory after
running merge-trees with its minimum checkout mode, which is the
default, because you would not find any files other than the ones that
needs human validation after the merge there.
It also fixes the argument parsing bug Paul Mackerras noticed in
<16991.42305.118284.139777@cargo.ozlabs.ibm.com> but slightly
differently.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This adds NUL-terminated output (-z) to show-files. This is necessary
for merge-trees script to deal with filenames with embedded newlines.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This allows scripts to manually add entries to the cache explicitly.
Need to do some way to remove them too, even if the path exists.
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This allows using a git tree over NFS with different byte order, and
makes it possible to just copy a fully populated repository and have
the end result immediately usable (needing just a refresh to update
the stat information).
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This make all dates be stores as seconds since UTC epoch, with the
author's or committer's timezone as auxiliary data so that dates can be
pretty-printed in the original timezone later if anyone cares. I left
the date parsing in rev-tree.c for backward compatibility but it can be
dropped when we change to base64 :)
commit-tree now eats RFC2822 dates as AUTHOR_DATE because that's
what you're going to want to feed it.
Yes, glibc sucks and strptime is a pile of crap. We have to parse it
ourselves.
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This adds '-r' (recursive) option and '-z' (NUL terminated)
option to ls-tree. I need it so that the merge-trees (formerly
known as git-merge.perl) script does not need to create any
temporary dircache while merging. It used to use show-files on
a temporary dircache to get the list of files in the ancestor
tree, and also used the dircache to store the result of its
automerge. I probably still need it for the latter reason, but
with this patch not for the former reason anymore.
It is relative to bb95843a5a0f397270819462812735ee29796fb4
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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It only works one directory level at a time, so lookout..
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It's really a very generic thing: the notion of one sha1 revision
referring to another one. "fsck" uses it for all nodes, and "rev-tree"
only tracks commit-node relationships, but the code was already
the same - now we just make that explicit by moving it to a common
header file.
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Not only did it test the #define the wrong way around, but
it also leaked file descriptors and VM space. This should
fix it.
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Linus Torvalds
Junio C Hamano
Brad Roberts
Petr Baudis
David Woodhouse