setup_git_directory(): fix move to worktree toplevel directory
When setup_git_directory() returns successfully, it is supposed to move
current working directory to worktree toplevel directory.
However, the code recomputing prefix inside setup_git_directory() has
to move cwd back to original working directory, in order to get new
prefix. After that, it should move cwd back to worktree toplevel
directory as expected.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git commit --author=$name: look $name up in existing commits
This allows "git commit --author=$name" to accept a name that is not in
the required "A U Thor <author@example.xz>" format, and use that to look
up an author name that matches from existing commits.
When using this feature, it is the user's responsibility to give a name
that uniquely matches the name s/he wants, as the logic returns the name
from the first matching commit.
When the tracked contents have CRLF line endings, colored diff output
shows "^M" at the end of output lines, which is distracting, even though
the pager we use by default ("less") knows to hide them.
The problem is that "less" hides a carriage-return only at the end of the
line, immediately before a line feed. The colored diff output does not
take this into account, and emits four element sequence for each line:
- force this color;
- the line up to but not including the terminating line feed;
- reset color
- line feed.
By including the carriage return at the end of the line in the second
item, we are breaking the smart our pager has in order not to show "^M".
This can be fixed by changing the sequence to:
- force this color;
- the line up to but not including the terminating end-of-line;
- reset color
- end-of-line.
where end-of-line is either a single linefeed or a CRLF pair. When the
output is not colored, "force this color" and "reset color" sequences are
both empty, so we won't have this problem with or without this patch.
* maint:
gitattributes: -crlf is not binary
git-apply: Loosen "match_beginning" logic
Fix example in git-name-rev documentation
shell: do not play duplicated definition games to shrink the executable
Fix use of hardlinks in "make install"
pack-objects: Allow missing base objects when creating thin packs
The description of crlf attribute incorrectly said that "-crlf" means
binary. It is true that for binary files you would want "-crlf", but
that is not the same thing.
We also have supported attribute macros and via that mechanism a handy
"binary" to specify "-crlf -diff" at the same time. It was not documented
anywhere as far as I can tell, even though the support was there from
the very beginning.
Merge branch 'jc/post-simplify' (early part) into tr/filter-branch
* 'jc/post-simplify' (early part):
revision --simplify-merges: make it a no-op without pathspec
revision --simplify-merges: do not leave commits unprocessed
revision --simplify-merges: use decoration instead of commit->util field
Even after a handfle attempts, match_beginning logic still has corner
cases:
1bf1a85 (apply: treat EOF as proper context., 2006-05-23) 65aadb9 (apply: force matching at the beginning., 2006-05-24) 4be6096 (apply --unidiff-zero: loosen sanity checks ..., 2006-09-17) ee5a317 (Fix "git apply" to correctly enforce "match ..., 2008-04-06)
This is a tricky piece of code.
We still incorrectly enforce "match_beginning" for -U0 matches.
I noticed this while trying out an example sequence from Clemens Buchacher:
$ echo a >victim
$ git add victim
$ echo b >>victim
$ git diff -U0 >patch
$ cat patch
diff --git i/victim w/victim
index 7898192..422c2b7 100644
--- i/victim
+++ w/victim
@@ -1,0 +2 @@ a
+b
$ git apply --cached --unidiff-zero <patch
$ git show :victim
b
a
The change inserts a new line before the second line, but we insist it to
be applied at the beginning. As the result, the code refuses to apply it
at the original offset, and we end up adding the line at the beginning.
Updates to the test script are by Clemens Buchacher.
Since 59d3f54 (name-rev: avoid "^0" when unneeded, 2007-02-20), name-rev
stopped showing an unnecessary "^0" to dereference a tag down to a commit.
The patch should have made a matching update to the documentation, but we
forgot.
The code failed to filter-out git-add properly on platforms were $X is
not empty (ATM there is only one such a platform).
Than it tried to create a hardlink to the file ($execdir/git-add) it just
removed (because git-add is first in the BUILT_INS), so ln failed (but
because stderr was redirected into /dev/null the error was never seen), and
the whole install ended up using "ln -s" instead.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
fixup_pack_header_footer(): use nicely aligned buffer sizes
It should be more efficient to use nicely aligned buffer sizes, either
for filesystem operations or SHA1 checksums. Also, using a relatively
small nominal size might allow for the data to remain in L1 cache
between both SHA1_Update() calls.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
index-pack: use fixup_pack_header_footer()'s validation mode
When completing a thin pack, a new header has to be written to
the pack and a new SHA1 computed. Make sure that the SHA1 of what
is being read back matches the SHA1 of what was written for both:
the original pack and the appended objects.
To do so, a couple write_or_die() calls were converted to sha1write()
which has the advantage of doing some buffering as well as handling
SHA1 and CRC32 checksum already.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
pack-objects: use fixup_pack_header_footer()'s validation mode
When limiting the pack size, a new header has to be written to the
pack and a new SHA1 computed. Make sure that the SHA1 of what is being
read back matches the SHA1 of what was written.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, this function has the potential to read corrupted pack data
from disk and give it a valid SHA1 checksum. Let's add the ability to
validate SHA1 checksum of existing data along the way, including before
and after any arbitrary point in the pack.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
pack-objects: improve returned information from write_one()
This function returns 0 when the current object couldn't be written
due to the pack size limit, otherwise the current offset in the pack.
There is a problem with this approach however, since current object
could be a delta and its delta base might just have been written in
the same write_one() call, but those successfully written objects are
not accounted in the offset variable tracked by the caller. Currently
this is not an issue but a subsequent patch will need this.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-help: fallback to GIT_MAN_VIEWER before man
In some situations it is useful to be able to switch viewers via the
environment, e.g. in Emacs shell buffers. So check the GIT_MAN_VIEWER
environment variable and try it before falling back to "man".
Signed-off-by: Romain Francoise <romain@orebokech.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
tutorial: gentler illustration of Alice/Bob workflow using gitk
pretty=format: respect date format options
make git-shell paranoid about closed stdin/stdout/stderr
Document gitk --argscmd flag.
Fix '--dirstat' with cross-directory renaming
for-each-ref: Allow a trailing slash in the patterns
git-p4: Fix checkout bug when using --import-local.
When this option is passed to git p4 clone, the checkout at the end would
previously fail. This patch fixes it by optionally creating the master branch
from refs/heads/p4/master, which is the correct one for this option.
Signed-off-by: Tor Arvid Lund <torarvid@gmail.com> Acked-By: Simon Hausmann <simon@lst.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
the date option was ignored. This patch causes it to use whatever
format was specified by --date (or by --relative-date, etc), just
as the non-user formats would do.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
make git-shell paranoid about closed stdin/stdout/stderr
It is in general unsafe to start a program with one or more of file
descriptors 0/1/2 closed. Karl Chen for example noticed that stat_command
does this in order to rename a pipe file descriptor to 0:
dup2(from, 0);
close(from);
... but if stdin was closed (for example) from == 0, so that
dup2(0, 0);
close(0);
just ends up closing the pipe. Another extremely rare but nasty problem
would occur if an "important" file ends up in file descriptor 2, and is
corrupted by a call to die().
Fixing this in git was considered to be overkill, so this patch works
around it only for git-shell. The fix is simply to open all the "low"
descriptors to /dev/null in main.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Acked-by: Stephen R. van den Berg <srb@cuci.nl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The dirstat code depends on the fact that we always generate diffs with
the names sorted, since it then just does a single-pass walk-over of the
sorted list of names and how many changes there were. The sorting means
that all files are nicely grouped by directory.
That all works fine.
Except when we have rename detection, and suddenly the nicely sorted list
of pathnames isn't all that sorted at all. And now the single-pass dirstat
walk gets all confused, and you can get results like this:
Spot the difference. In case anybody wonders: it's because of a ton of
renames from {include/asm-blackfin => arch/blackfin/include/asm} that just
totally messed up the file ordering in between arch/arm and arch/powerpc.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
for-each-ref: Allow a trailing slash in the patterns
More often than not, I end up using something like refs/remotes/ as the
pattern for for-each-ref, but that doesn't work, because it expects to see
the slash in the ref name right after the matched pattern. So teach it to
accept the slash as the final character in the pattern as well.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
is a c99 construct which some compilers do not support even though they
support other c99 constructs. This construct can be avoided by folding
these 'special' test cases into the sane_ctype array and making use of
the related infrastructure.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This fixes "git diff", "git diff-files" and "git diff-index" to work
correctly under worktree setup. Because diff* family works in many modes
and not all of them require worktree, Junio made a nice summary
(with a little modification from me):
* diff-files is about comparing with work tree, so it obviously needs a
work tree;
* diff-index also does, except "diff-index --cached" or "diff --cached TREE"
* no-index is about random files outside git context, so it obviously
doesn't need any work tree;
* comparing two (or more) trees doesn't;
* comparing two blobs doesn't;
* comparing a blob with a random file doesn't;
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* mv/merge-custom:
t7606: fix custom merge test
Fix "git-merge -s bogo" help text
Update .gitignore to ignore git-help
Builtin git-help.
builtin-help: always load_command_list() in cmd_help()
Add a second testcase for handling invalid strategies in git-merge
Add a new test for using a custom merge strategy
builtin-merge: allow using a custom strategy
builtin-help: make some internal functions available to other builtins
Some platforms contaminate the preprocessor token namespace with their own
definition of SS without being asked. Avoid getting hit by redefinition
warning messages by explicitly undef SS, AA and DD shorthand we use in this
table definition.
index-pack: be careful after fixing up the header/footer
The index-pack command, when processing a thin pack, fixed up the pack
after-the-fact. It forgets to fsync the result, because it only did that
in one path rather in all cases of fixup.
This moves the fsync_or_die() to the fix-up routine itself, rather than
doing it in one of the callers, so that all cases are covered.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make it possible to abort the submission of a change to Perforce
Currently it is not possible to skip the submission of a change to Perforce
when running git-p4 submit. This patch compares the modification time before
and after the submit editor invokation and offers a prompt for skipping if
the submit template file was not saved.
Signed-off-by: Simon Hausmann <simon@lst.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
format-patch: use default diff format even with patch options
Previously, running "git format-patch -U5" would cause the
low-level diff machinery to change the diff output format
from "not specified" to "patch". This meant that
format-patch thought we explicitly specified a diff output
format, and would not use the default format. The resulting
message lacked both the diffstat and the summary, as well as
the separating "---".
Now format-patch explicitly checks for this condition and
uses the default. That means that "git format-patch -p" will
now have the "-p" ignored.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git index-pack" is an independent command and does not setup git
repository while still need pack.indexversion. It may miss the
info if it is in a subdirectory of the repository.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In particular, when testing if the filesystem allows tabs in
filenames, bash issues an error something like:
./t4016-diff-quote.sh: pathname with HT: No such file or directory
which is caused by the failure of the (stdout) redirection,
since the file cannot be created. In order to suppress the
error message, you must redirect stderr to /dev/null, *before*
the stdout redirection on the command-line.
Also, remove a redundant filesystem check from the begining of
the t3902-quoted.sh test and standardise the "test skipped"
message to 'say' on exit.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds a new item to the file list popup menu, that calls git gui
blame for the selected file, starting with the first parent of the
current commit.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Add option to specify the default commit on command line
Other GUI tools may need to start gitk and make it automatically
select a certain commit. This adds a new command-line option
--select-commit=id to make that possible.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Makefile: always provide a fallback when hardlinks fail
We make hardlinks from "git" to "git-<cmd>" built-ins and have been
careful to avoid cross-device links when linking "git-<cmd>" to
gitexecdir.
However, we were not prepared to deal with a build directory that is
incapable of making hard links within itself. This patch corrects it.
Instead of temporarily linking "git" to gitexecdir, directly link "git-
add", falling back to "cp". Try hardlinking that as "git-<cmd>", falling
back to symlinks or "cp" on error.
While at it, avoid 100+ error messages from hardlink failures when we are
going to fall back to symlinks or "cp" by redirecting the standard error
to /dev/null.
Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This reverts commit daa0cc9a92c9c2c714aa5f7da6d0ff65b93e0698.
It was a stupid idea to do this; when run as a log-in shell,
it is spawned with argv[0] set to "-git-shell", so the usual
name-based dispatch would not work to begin with.
This has been broken in v1.6.0 due to the reorganization of
the revision option parsing code. The "-i" is completely
ignored, but works fine in "git log --grep -i".
What happens is that the code for "-i" looks for
revs->grep_filter; if it is NULL, we do nothing, since there
are no grep filters. But that is obviously not correct,
since we want it to influence the later --grep option. Doing
it the other way around works, since "-i" just impacts the
existing grep_filter option.
Instead, we now always initialize the grep_filter member and
just fill in options and patterns as we get them. This means
that we can no longer check grep_filter for NULL, but
instead must check the pattern list to see if we have any
actual patterns.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-gui: Support passing blame to a parent commit.
Add a context menu item that switches the view to the
parent of the commit under cursor. It is useful to see
how the file looked before the change, and find older
changes in the same lines.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
/etc/passwd shell field must be something execable, you can't enter
"/usr/bin/git shell" there. git-shell must be present as a separate
executable, or it is useless.
Signed-off-by: Tommi Virtanen <tv@eagain.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-submodule - Use "get_default_remote" from git-parse-remote
Resolve_relative_url was using its own code for this function, but
this is duplication with the best result that this continues to work.
Replace with the common function provided by git-parse-remote.
Signed-off-by: Mark Levedahl <mlevedahl@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
It was not obvious from the text that pager.<cmd> is a boolean
setting.
While we're changing the description, make some other
improvements: lest we forget and fret, clarify that -p and
pager.<cmd> do not kick in when stdout is not a tty; point to
related core.pager and GIT_PAGER settings; use renamed --paginate
option.
Signed-off-by: Jonathan Nieder <jrnieder@uchicago.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix git-diff to make it produce useful 3-way diffs for merge conflicts in
repositories with autocrlf enabled. Otherwise it always reports that the
whole file was changed, because it uses the contents from the working tree
without necessary conversion.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Custom merge strategy does not even kick in when the merge is truly
trivial. The test depended on the behaviour in the git-merge rewritten in
C that broke the trivial merge completely.
Make the test to work on a non-trivial merge to make sure the strategy
kicks in.
* maint:
unpack_trees(): protect the handcrafted in-core index from read_cache()
git-p4: Fix one-liner in p4_write_pipe function.
Completion: add missing '=' for 'diff --diff-filter'
Fix 'git help help'
merge: fix numerus bugs around "trivial merge" area
The "trivial merge" codepath wants to optimize itself by making an
internal call to the read-tree machinery, but it does not read the index
before doing so, and the codepath is never exercised. Incidentally, this
failure to read the index upfront means that the safety to refuse doing
anything when the index is unmerged does not kick in, either.
These two problem are fixed by using read_cache_unmerged() that does read
the index before checking if it is unmerged at the beginning of
cmd_merge().
The primary logic of the merge, however, assumes that the process never
reads the index in-core, and the call to write_cache_as_tree() it makes
from write_tree_trivial() will always read from the on-disk index that is
prepared the strategy back-ends. This assumption is now broken by the
above fix. To fix this issue, we now call discard_cache() before calling
write_tree_trivial() when it wants to write the on-disk index as a tree.
When multiple strategies are tried, their results are evaluated by reading
the resulting index and inspecting it. The codepath needs to make a call
to read_cache() for each successful strategy, and for that to work, they
need to discard_cache() the one read by the previous round.
Also the "trivial merge" forgot that the current commit is one of the
parents of the resulting commit.
unpack_trees(): protect the handcrafted in-core index from read_cache()
unpack_trees() rebuilds the in-core index from scratch by allocating a new
structure and finishing it off by copying the built one to the final
index.
The resulting in-core index is Ok for most use, but read_cache() does not
recognize it as such. The function is meant to be no-op if you already
have loaded the index, until you call discard_cache().
This change the way read_cache() detects an already initialized in-core
index, by introducing an extra bit, and marks the handcrafted in-core
index as initialized, to avoid this problem.
A better fix in the longer term would be to change the read_cache() API so
that it will always discard and re-read from the on-disk index to avoid
confusion. But there are higher level API that have relied on the current
semantics, and they and their users all need to get converted, which is
outside the scope of 'maint' track.
An example of such a higher level API is write_cache_as_tree(), which is
used by git-write-tree as well as later Porcelains like git-merge, revert
and cherry-pick. In the longer term, we should remove read_cache() from
there and add one to cmd_write_tree(); other callers expect that the
in-core index they prepared is what gets written as a tree so no other
change is necessary for this particular codepath.
The original version of this patch marked the index by pointing an
otherwise wasted malloc'ed memory with o->result.alloc, but this version
uses Linus's idea to use a new "initialized" bit, which is conceptually
much cleaner.
Revert "Convert output messages in merge-recursive to past tense."
During a conflicting merge, you would typically see:
Auto-merged foo.txt
CONFLICT (content): Merge conflict in foo.txt
Recorded preimage for 'foo.txt'
Automatic merge failed; fix conflicts and then commit the result.
and left wondering what happened to "foo.txt". Did it succeed, and then
conflicted, and then what?
This is because historically there was a progress bar displayed before the
auto-merge is mentioned, and it was expected to take long time, before we
can say "Auto-merged foo.txt". It turns out it was not the case, and the
original wording "Auto-merging foo.txt" we used to have before 89f40be
(Convert output messages in merge-recursive to past tense., 2007-01-14) is
better.
Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
templates/Makefile: install is unnecessary, just use mkdir -p
The native install on some platforms (namely IRIX 6.5) treats non-absolute
paths as being relative to the root directory rather than relative to
the current directory. Work around this by avoiding install in this case
since it is unnecessary, and instead depend on the local umask setting
and use mkdir.
Tested-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote.c: add a function for deleting a refspec array and use it (twice)
A number of call sites allocate memory for a refspec array, populate
its members with heap memory, and then free only the refspec pointer
while leaking the memory allocated for the member elements. Provide
a function for freeing the elements of a refspec array and the array
itself.
Caution to callers: code paths must be checked to ensure that the
refspec members "src" and "dst" can be passed to free.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
filter-branch: Grok special characters in tag names
The tag rewriting code used a 'sed' expression to substitute the new tag
name into the corresponding field of the annotated tag object. But this is
problematic if the tag name contains special characters. In particular,
if the tag name contained a slash, then the 'sed' expression had a syntax
error. We now protect against this by using 'printf' to assemble the
tag header.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
provide more errors for the "merge into empty head" case
A squash merge into an unborn branch could be implemented by building the
index from the merged-from branch, and doing a single commit, but this is
not supported yet.
A non-fast-forward merge into an unborn branch does not make any sense,
because you cannot make a merge commit if you don't have a commit to use
as the parent.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>