If writing or committing the new index file fails, we print "Could not
write new index file." followed by "Could not reset index file to
revision $rev.". The first message seems to imply the second, so print
only the first message.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git reset --keep" calls reset_index_file() twice, first doing a
two-way merge to the target revision, updating the index and worktree,
and then resetting the index. After each call, we write the index
file.
In the unlikely event that the second call to reset_index_file()
fails, the index will have been merged to the target revision, but
HEAD will not be updated, leaving the user with a dirty index.
By moving the locking, writing and committing out of
reset_index_file() and into the caller, we can avoid writing the index
twice, thereby making the sure we don't end up in the half-way reset
state. As a bonus, we speed up "git reset --keep" a little on the
linux-2.6 repo (best of five, warm cache):
Before After
real 0m0.315s 0m0.296s
user 0m0.290s 0m0.280s
sys 0m0.020s 0m0.010s
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use a single condition to guard the call to die_if_unmerged_cache for
both --soft and --keep. This avoids the small distraction of the
precondition check from the logic following it.
Also change an instance of
if (e)
err = err || f();
to the almost as short, but clearer
if (e && !err)
err = f();
(which is equivalent since we only care whether exit code is 0)
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
reset.c: extract function for updating {ORIG_,}HEAD
By extracting the code for updating the HEAD and ORIG_HEAD symbolic
references to a separate function, we declutter cmd_reset() a bit and
we make it clear that e.g. the four variables {,sha1_}{,old_}orig are
only used by this code.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Throughout most of parse_args(), the variable 'i' remains at 0. Many
references are still made to the variable even when it could only have
the value 0. This made at least me, who has relatively little
experience with C programming styles, think that parts of the function
was meant to be part of a loop. To avoid such confusion, remove the
variable and also the 'argc' parameter and check for NULL trailing
argv instead.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
reset: don't allow "git reset -- $pathspec" in bare repo
Running e.g. "git reset ." in a bare repo results in an index file
being created from the HEAD commit. The differences compared to the
index are then printed as usual, but since there is no worktree, it
will appear as if all files are deleted. For example, in a bare clone
of git.git:
Unstaged changes after reset:
D .gitattributes
D .gitignore
D .mailmap
...
This happens because the check for is_bare_repository() happens after
we branch off into read_from_tree() to reset with paths. Fix by moving
the branching point after the check.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
reset.c: pass pathspec around instead of (prefix, argv) pair
We use the path arguments in two places in reset.c: in
interactive_reset() and read_from_tree(). Both of these call
get_pathspec(), so we pass the (prefix, argv) pair to both
functions. Move the call to get_pathspec() out of these methods, for
two reasons: 1) One argument is simpler than two. 2) It lets us use
the (arguably clearer) "if (pathspec)" in place of "if (i < argc)".
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git reset $pathspec" currently exits with a non-zero exit code if the
worktree is dirty after resetting, which is inconsistent with reset
without pathspec, and it makes it harder to know whether the command
really failed. Change it to exit with code 0 regardless of whether the
worktree is dirty so that non-zero indicates an error.
This makes the 4 "disambiguation" test cases in t7102 clearer since
they all used to "fail", 3 of which "failed" due to changes in the
work tree. Now only the ambiguous one fails.
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 34110cd (Make 'unpack_trees()' have a separate source and
destination index, 2008-03-06), the index no longer gets clobbered by
do_diff_cache() and we can remove the code for discarding and
re-reading it.
There are two paths to update_index_refresh() from cmd_reset(), but on
both paths, either read_cache() or read_cache_unmerged() will have
been called, so the call to read_cache() in this method is redundant
(although practically free).
This speeds up "git reset -- ." a little on the linux-2.6 repo (best
of five, warm cache):
Before After
real 0m0.093s 0m0.080s
user 0m0.040s 0m0.020s
sys 0m0.050s 0m0.050s
Signed-off-by: Martin von Zweigbergk <martinvonz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
94bc671 (Add directory pattern matching to attributes - 2012-12-08)
uses find_basename() to calculate the length of directory part in
prepare_attr_stack. This function expects the directory without the
trailing slash (as "origin" field in match_attr struct is without the
trailing slash). find_basename() includes the trailing slash and
confuses push/pop algorithm.
Consider path = "abc/def" and the push down code:
while (1) {
len = strlen(attr_stack->origin);
if (dirlen <= len)
break;
cp = memchr(path + len + 1, '/', dirlen - len - 1);
if (!cp)
cp = path + dirlen;
dirlen is 4, not 3, without this patch. So when attr_stack->origin is
"abc", it'll miss the exit condition because 4 <= 3 is wrong. It'll
then try to push "abc/" down the attr stack (because "cp" would be
NULL). So we have both "abc" and "abc/" in the stack.
Next time when "abc/ghi" is checked, "abc/" is popped out because of
the off-by-one dirlen, only to be pushed back in again by the above
code. This repeats for all files in the same directory. Which means
at least one failed open syscall per file, or more if .gitattributes
exists.
Reported-by: Ross Lagerwall <rosslagerwall@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
pretty: use prefixcmp instead of memcmp on NUL-terminated strings
This conversion avoids the need for magic string length numbers in the
code. And unlike memcmp(), prefixcmp() is careful to not run over the
end of a string.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Create find_hook() function to determine if a given hook exists and is
executable. If it is, the path to the script will be returned,
otherwise NULL is returned.
This encapsulates the tests that are used to check for the existence of
a hook in one place, making it easier to modify those checks if that is
found to be necessary. This also makes it simple for places that can
use a hook to check if a hook exists before doing, possibly lengthy,
setup work which would be pointless if no such hook is present.
The returned value is left as a static value from get_pathname() rather
than a duplicate because it is anticipated that the return value will
either be used as a boolean, immediately added to an argv_array list
which would result in it being duplicated at that point, or used to
actually run the command without much intervening work. Callers which
need to hold onto the returned value for a longer time are expected to
duplicate the return value themselves.
Signed-off-by: Aaron Schrab <aaron@schrab.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rebase --preserve-merges: keep all merge commits including empty ones
Since 90e1818f9a (git-rebase: add keep_empty flag, 2012-04-20)
'git rebase --preserve-merges' fails to preserve empty merge commits
unless --keep-empty is also specified. Merge commits should be
preserved in order to preserve the structure of the rebased graph,
even if the merge commit does not introduce changes to the parent.
Teach rebase not to drop merge commits only because they are empty.
A special case which is not handled by this change is for a merge commit
whose parents are now the same commit because all the previous different
parents have been dropped as a result of this rebase or some previous
operation.
Signed-off-by: Phil Hord <hordp@cisco.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
(1) Only print out the names of the files and directories that got
actually deleted. Also do not mention that we are not removing
directories when the user did not ask us to do so with '-d'.
(2) Show ignore message for skipped untracked git repositories.
Suppose the user issues 'git clean -fd' from the test.git directory.
When -d option is used and untracked directory 'foo' contains a
subdirectory 'frotz.git' that is managed by a different git repository
therefore it will not be removed.
The message displayed to the user is slightly misleading. The foo/
directory has not been removed because of foo/frotz.git still exists.
On the other hand the subdirectories 'bar' and 'emptydir' have been
deleted but they're not mentioned anywhere. Also, untracked_some.git
has not been removed either.
This behaviour is the result of the way the deletion of untracked
directories are reported. In the current implementation they are
deleted recursively but only the name of the top most directory is
printed out. The calling function does not know about any
subdirectories that could not be removed during the recursion.
Improve the way the deleted directories are reported back to
the user:
(1) Create a recursive delete function 'remove_dirs' in builtin/clean.c
to run in both dry_run and delete modes with the delete logic as
follows:
(a) Check if the current directory to be deleted is an untracked
git repository. If it is and --force --force option is not set
do not touch this directory, print ignore message, set dir_gone
flag to false for the caller and return.
(b) Otherwise for each item in current directory:
(i) If current directory cannot be accessed, print warning,
set dir_gone flag to false and return.
(ii) If the item is a subdirectory recurse into it,
check for the returned value of the dir_gone flag.
If the subdirectory is gone, add the name of the deleted
directory to a list of successfully removed items 'dels'.
Else set the dir_gone flag as the current directory
cannot be removed because we have at least one subdirectory
hanging around.
(iii) If it is a file try to remove it. If success add the
file name to the 'dels' list, else print error and set
dir_gone flag to false.
(c) After we finished deleting all items in the current directory and
the dir_gone flag is still true, remove the directory itself.
If failed set the dir_gone flag to false.
(d) If the current directory cannot be deleted because the dir_gone flag
has been set to false, print out all the successfully deleted items
for this directory from the 'dels' list.
(e) We're done with the current directory, return.
(2) Modify the cmd_clean() function to:
(a) call the recursive delete function 'remove_dirs()' for each
topmost directory it wants to remove
(b) check for the returned value of dir_gone flag. If it's true
print the name of the directory as being removed.
In the longer term, tightening rules is a good thing to do, and
because nobody who has worked in the remote helper area seems to be
interested in reviewing this, I would assume they do not think
such a retroactive tightening will affect their remote helpers. So
let's advance this topic to see what happens.
* fc/remote-testgit-feature-done:
remote-testgit: properly check for errors
When user spells "cc:" in lowercase in the fake "header" in the
trailer part, send-email failed to pick up the addresses from
there. As e-mail headers field names are case insensitive, this
script should follow suit and treat "cc:" and "Cc:" the same way.
* nz/send-email-headers-are-case-insensitive:
git-send-email: treat field names as case-insensitively
Merge branch 'jl/interrupt-clone-remove-separate-git-dir' into maint
When "git clone --separate-git-dir=$over_there" is interrupted, it
failed to remove the real location of the $GIT_DIR it created. This
was most visible when interrupting a submodule update.
* jl/interrupt-clone-remove-separate-git-dir:
clone: support atomic operation with --separate-git-dir
Merge branch 'jc/maint-fmt-merge-msg-no-edit-lose-credit' into maint
"git merge --no-edit" computed who were involved in the work done
on the side branch, even though that information is to be discarded
without getting seen in the editor.
* jc/maint-fmt-merge-msg-no-edit-lose-credit:
merge --no-edit: do not credit people involved in the side branch
The behaviour visible to the end users was confusing, when they
attempt to kill a process spawned in the editor that was in turn
launched by Git with SIGINT (or SIGQUIT), as Git would catch that
signal and die. We ignore these signals now.
* pf/editor-ignore-sigint:
fix compilation with NO_PTHREADS
launch_editor: propagate signals from editor to git
run-command: do not warn about child death from terminal
launch_editor: ignore terminal signals while editor has control
launch_editor: refactor to use start/finish_command
run-command: drop silent_exec_failure arg from wait_or_whine
Improve compatibility of our zip output to fill uncompressed size
in the header, which we can do without seeking back (even though it
should not be necessary).
* rs/zip-with-uncompressed-size-in-the-header:
archive-zip: write uncompressed size into header even with streaming
Update zip tests to skip some that cannot be handled on platform
unzip.
* rs/zip-tests:
t5003: check if unzip supports symlinks
t5000, t5003: move ZIP tests into their own script
t0024, t5000: use test_lazy_prereq for UNZIP
t0024, t5000: clear variable UNZIP, use GIT_UNZIP instead
Update the disused merge-tree proof-of-concept code.
* jc/merge-blobs:
merge-tree: fix d/f conflicts
merge-tree: add comments to clarify what these functions are doing
merge-tree: lose unused "resolve_directories"
merge-tree: lose unused "flags" from merge_list
Which merge_file() function do you mean?
Teach "format-patch" to prefix v4- to its output files for the
fourth iteration of a patch series, to make it easier for the
submitter to keep separate copies for iterations.
* jc/format-patch-reroll:
format-patch: give --reroll-count a short synonym -v
format-patch: document and test --reroll-count
format-patch: add --reroll-count=$N option
get_patch_filename(): split into two functions
get_patch_filename(): drop "just-numbers" hack
get_patch_filename(): simplify function signature
builtin/log.c: stop using global patch_suffix
builtin/log.c: drop redundant "numbered_files" parameter from make_cover_letter()
builtin/log.c: drop unused "numbered" parameter from make_cover_letter()
* jc/submittingpatches:
SubmittingPatches: give list and maintainer addresses
SubmittingPatches: remove overlong checklist
SubmittingPatches: mention subsystems with dedicated repositories
SubmittingPatches: who am I and who cares?
Merge branch 'os/gitweb-highlight-uncaptured' into maint
"gitweb", when sorting by age to show repositories with new
activities first, used to sort repositories with absolutely nothing
in it early, which was not very useful.
* os/gitweb-highlight-uncaptured:
gitweb: fix error in sanitize when highlight is enabled
Merge branch 'jn/warn-on-inaccessible-loosen' into maint
When attempting to read the XDG-style $HOME/.config/git/config and
finding that $HOME/.config/git is a file, we gave a wrong error
message, instead of treating the case as "a custom config file does
not exist there" and moving on.
* jn/warn-on-inaccessible-loosen:
config: exit on error accessing any config file
doc: advertise GIT_CONFIG_NOSYSTEM
config: treat user and xdg config permission problems as errors
config, gitignore: failure to access with ENOTDIR is ok
"git fetch --mirror" and fetch that uses other forms of refspec with
wildcard used to attempt to update a symbolic ref that match the
wildcard on the receiving end, which made little sense (the real ref
that is pointed at by the symbolic ref would be updated anyway).
Symbolic refs no longer are affected by such a fetch.
* jc/fetch-ignore-symref:
fetch: ignore wildcarded refspecs that update local symbolic refs
The way "git svn" asked for password using SSH_ASKPASS and
GIT_ASKPASS was not in line with the rest of the system.
* ss/svn-prompt:
git-svn, perl/Git.pm: extend and use Git->prompt method for querying users
perl/Git.pm: Honor SSH_ASKPASS as fallback if GIT_ASKPASS is not set
git-svn, perl/Git.pm: add central method for prompting passwords
The --separate-git-dir option was introduced to make it simple to put
the git directory somewhere outside the worktree, for example when
cloning a repository for use as a submodule.
It was not intended for use when creating a bare repository. In that
case there is no worktree and it is more natural to directly clone the
repository and create a .git file as separate steps:
contrib/vim: simplify instructions for old vim support
Rely on the upstream filetype.vim instead of duplicating its rules in
git's instructions for syntax highlighting support on pre-7.2 vim
versions.
The result is a shorter contrib/vim/README. More importantly, it lets
us punt on maintenance of the autocmd rules.
So now when we fix the upstream gitsendemail rule in light of commit eed6ca7, new git users stuck on old vim reading contrib/vim/README can
automagically get the fix without any further changes needed to git.
Once the world has moved on to vim 7.2+ completely, we can get rid of
these instructions, but for now if they are this simple it's
effortless to keep them.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brace expansion is a shell feature that's not required by POSIX and not
supported by dash nor NetBSD's sh. Explicitly list all combinations
instead. Also avoid calling touch by creating the test files with a
redirection instead, as suggested by Junio.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When make is run, the python scripts are created from *.py files that
are changed to use the python given by PYTHON_PATH. And PYTHON_PATH
is set by default to /usr/bin/python on Linux.
However, next time make is run with a different value in PYTHON_PATH,
we failed to regenerate these scripts.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Acked-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'nd/invalidate-i-t-a-cache-tree' into maint
* nd/invalidate-i-t-a-cache-tree:
cache-tree: invalidate i-t-a paths after generating trees
cache-tree: fix writing cache-tree when CE_REMOVE is present
cache-tree: replace "for" loops in update_one with "while" loops
cache-tree: remove dead i-t-a code in verify_cache()
Refactor and generally clean up the directory traversal API
implementation.
* as/dir-c-cleanup:
dir.c: rename free_excludes() to clear_exclude_list()
dir.c: refactor is_path_excluded()
dir.c: refactor is_excluded()
dir.c: refactor is_excluded_from_list()
dir.c: rename excluded() to is_excluded()
dir.c: rename excluded_from_list() to is_excluded_from_list()
dir.c: rename path_excluded() to is_path_excluded()
dir.c: rename cryptic 'which' variable to more consistent name
Improve documentation and comments regarding directory traversal API
api-directory-listing.txt: update to match code
Move the bits to set fallback default based on the platform from
the main Makefile to a separate file, so that it can be included in
Makefiles in subdirectories.
* jk/config-uname:
Makefile: hoist uname autodetection to config.mak.uname
Allows pathname patterns in .gitignore and .gitattributes files
with double-asterisks "foo/**/bar" to match any number of directory
hierarchies.
* nd/wildmatch:
wildmatch: replace variable 'special' with better named ones
compat/fnmatch: respect NO_FNMATCH* even on glibc
wildmatch: fix "**" special case
t3070: Disable some failing fnmatch tests
test-wildmatch: avoid Windows path mangling
Support "**" wildcard in .gitignore and .gitattributes
wildmatch: make /**/ match zero or more directories
wildmatch: adjust "**" behavior
wildmatch: fix case-insensitive matching
wildmatch: remove static variable force_lower_case
wildmatch: make wildmatch's return value compatible with fnmatch
t3070: disable unreliable fnmatch tests
Integrate wildmatch to git
wildmatch: follow Git's coding convention
wildmatch: remove unnecessary functions
Import wildmatch from rsync
ctype: support iscntrl, ispunct, isxdigit and isprint
ctype: make sane_ctype[] const array
log --use-mailmap: optimize for cases without --author/--committer search
When we taught the commit_match() mechanism to pay attention to the
new --use-mailmap option, we started to unconditionally copy the
commit object to a temporary buffer, just in case we need the author
and committer lines updated via the mailmap mechanism, and rewrite
author and committer using the mailmap.
It turns out that this has a rather unpleasant performance
implications. In the linux kernel repository, running
$ git log --author='Junio C Hamano' --pretty=short >/dev/null
under /usr/bin/time, with and without --use-mailmap (the .mailmap
file is 118 entries long, the particular author does not appear in
it), cost (with warm cache):
The latter case is an unnecessary performance regression. We may
want to _show_ the result with mailmap applied, but we do not have
to copy and rewrite the author/committer of all commits we try to
match if we do not query for these fields.
Trivially optimize this performace regression by limiting the
rewrites for only when we are matching with author/committer fields.
Simplify map_user(), mostly to avoid copies of string buffers. It
also simplifies caller functions.
map_user() directly receive pointers and length from the commit buffer
as mail and name. If mapping of the user and mail can be done, the
pointer is updated to a new location. Lengths are also updated if
necessary.
The caller of map_user() can then copy the new email and name if
necessary.
Signed-off-by: Antoine Pelisse <apelisse@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In map_user(), we have email pointer that points at the beginning of
an e-mail address, but the buffer is not terminated with a NUL after
the e-mail address. It typically has ">" after the address, and it
could have even more if it comes from author/committer line in a
commit object. Or it may not have ">" after it.
We used to copy the e-mail address proper into a temporary buffer
before asking the string-list API to find the e-mail address in the
mailmap, because string_list_lookup() function only takes a NUL
terminated full string.
Introduce a helper function lookup_prefix that takes the email
pointer and the length, and finds a matching entry in the string
list used for the mailmap, by doing the following:
- First ask string_list_find_insert_index() where in its sorted
list the e-mail address we have (including the possible trailing
junk ">...") would be inserted.
- It could find an exact match (e.g. we had a clean e-mail address
without any trailing junk). We can return the item in that case.
- Or it could return the index of an item that sorts after the
e-mail address we have.
- If we did not find an exact match against a clean e-mail address,
then the record we are looking for in the mailmap has to exist
before the index returned by the function (i.e. "email>junk"
always sorts later than "email"). Iterate, starting from that
index, down the map->items[] array until we find the exact record
we are looking for, or we see a record with a key that definitely
sorts earlier than the e-mail we are looking for (i.e. when we
are looking for "email" in "email>junk", a record in the mailmap
that begins with "emaik" strictly sorts before "email", if such a
key existed in the mailmap).
This, together with the earlier enhancement to support
case-insensitive sorting, allow us to remove an extra copy of email
buffer to downcase it.
A part of this is based on Antoine Pelisse's previous work.
commit: make default of "cleanup" option configurable
The default of the "cleanup" option in "git commit"
is not configurable. Users who don't want to use the
default have to pass this option on every commit since
there's no way to configure it. This commit introduces
a new config option "commit.cleanup" which can be used
to change the default of the "cleanup" option in
"git commit".
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-commit-tree(1): correct description of defaults
The old phrasing indicated that the EMAIL environment variable takes
precedence over the user.email configuration setting, but it is the
other way around.
Signed-off-by: Peter Eisentraut <peter@eisentraut.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The options in git-fast-import(1) are not currently arranged in a
logical order, which has caused the '--done' options to be documented
twice (commit 3266de10).
Rearrange them into logical groups under subheadings.
Suggested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: John Keeping <john@keeping.me.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>