René Scharfe [Thu, 2 Nov 2017 17:27:05 +0000 (18:27 +0100)]
imap-send: handle missing response codes gracefully
Response codes are optional. Exit parse_response_code() early if it's
passed a NULL string, indicating that we reached the end of the reply.
This avoids dereferencing said NULL pointer.
Noticed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Wed, 1 Nov 2017 17:03:20 +0000 (18:03 +0100)]
imap-send: handle NULL return of next_arg()
next_arg() returns NULL if it runs out of arguments. Most call sites
already handle that gracefully. Check in the remaining cases as well.
Replace the NULL pointer with an empty string at the bottom of
get_cmd_result() -- it's nicely reported as an unexpected response a
few lines down. Error out explicitly at the remaining sites.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Carlos Martín Nieto [Sun, 29 Oct 2017 15:12:28 +0000 (16:12 +0100)]
diff: --indent-heuristic is no longer experimental
This heuristic has been the default since 2.14 so we should not confuse our
users by saying that it's experimental and off by default.
Signed-off-by: Carlos Martín Nieto <cmn@dwim.me>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Simon Ruderich [Wed, 1 Nov 2017 14:45:42 +0000 (15:45 +0100)]
sequencer.c: check return value of close() in rewrite_file()
Not checking close(2) can hide errors as not all errors are reported
during the write(2).
Signed-off-by: Simon Ruderich <simon@ruderich.org>
Reviewed-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Wed, 1 Nov 2017 17:10:33 +0000 (18:10 +0100)]
mingw: document the standard handle redirection
This feature has been in Git for Windows since v2.11.0(2), as an
experimental option. Now it is considered mature, and it is high time to
document it properly.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Wed, 1 Nov 2017 17:10:30 +0000 (18:10 +0100)]
mingw: optionally redirect stderr/stdout via the same handle
The "2>&1" notation in Powershell and in Unix shells implies that stderr
is redirected to the same handle into which stdout is already written.
Let's use this special value to allow the same trick with
GIT_REDIRECT_STDERR and GIT_REDIRECT_STDOUT: if the former's value is
`2>&1`, then stderr will simply be written to the same handle as stdout.
The functionality was suggested by Jeff Hostetler.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Wed, 1 Nov 2017 17:10:25 +0000 (18:10 +0100)]
mingw: add experimental feature to redirect standard handles
Particularly when calling Git from applications, such as Visual Studio's
Team Explorer, it is important that stdin/stdout/stderr are closed
properly. However, when spawning processes on Windows, those handles
must be marked as inheritable if we want to use them, but that flag is a
global flag and may very well be used by other spawned processes which
then do not know to close those handles.
Let's introduce a set of environment variables (GIT_REDIRECT_STDIN and
friends) that specify paths to files, or even better, named pipes (which
are similar to Unix sockets) and that are used by the spawned Git
process. This helps work around above-mentioned issue: those named
pipes will be opened in a non-inheritable way upon startup, and no
handles are passed around (and therefore no inherited handles need to be
closed by any spawned child).
This feature shipped with Git for Windows (marked as experimental) since
v2.11.0(2), so it has seen some serious testing in the meantime.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Wed, 1 Nov 2017 11:56:44 +0000 (12:56 +0100)]
travis-ci: don't build Git for the static analysis job
The static analysis job on Travis CI builds Git ever since it was
introduced in
d8245bb3f (travis-ci: add static analysis build job to
run coccicheck, 2017-04-11). However, Coccinelle, the only static
analysis tool in use, only needs Git's source code to work and it
doesn't care about built Git binaries at all.
Spare some of Travis CI's resources and don't build Git for the static
analysis job unnecessarily.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Wed, 1 Nov 2017 11:55:35 +0000 (12:55 +0100)]
travis-ci: fix running P4 and Git LFS tests in Linux build jobs
Linux build jobs on Travis CI skip the P4 and Git LFS tests since
commit
657343a60 (travis-ci: move Travis CI code into dedicated
scripts, 2017-09-10), claiming there are no P4 or Git LFS installed.
The reason is that P4 and Git LFS binaries are not installed to a
directory in the default $PATH, but their directories are prepended to
$PATH. This worked just fine before said commit, because $PATH was
set in a scriptlet embedded in our '.travis.yml', thus its new value
was visible during the rest of the build job. However, after these
embedded scriptlets were moved into dedicated scripts executed in
separate shell processes, any variable set in one of those scripts is
only visible in that single script but not in any of the others. In
this case, 'ci/install-dependencies.sh' downloads P4 and Git LFS and
modifies $PATH, but to no effect, because 'ci/run-tests.sh' only sees
Travis CI's default $PATH.
Move adjusting $PATH to 'ci/lib-travisci.sh', which is sourced in all
other 'ci/' scripts, so all those scripts will see the updated $PATH
value.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Martin Ågren [Wed, 1 Nov 2017 20:45:06 +0000 (21:45 +0100)]
grep: take the read-lock when adding a submodule
With --recurse-submodules, we add each submodule that we encounter to
the list of alternate object databases. With threading, our changes to
the list are not protected against races. Indeed, ThreadSanitizer
reports a race when we call `add_to_alternates_memory()` around the same
time that another thread is reading in the list through
`read_sha1_file()`.
Take the grep read-lock while adding the submodule. The lock is used to
serialize uses of non-thread-safe parts of Git's API, including
`read_sha1_file()`.
Helped-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Acked-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jacob Keller [Tue, 31 Oct 2017 23:07:33 +0000 (16:07 -0700)]
sequencer: pass absolute GIT_DIR to exec commands
When we replaced the old shell script based interactive rebase in
commmit
18633e1a22a6 ("rebase -i: use the rebase--helper builtin",
2017-02-09) we introduced a regression of functionality in that the
GIT_DIR would be sent to the environment of the exec command as-is.
This generally meant that it would be passed as "GIT_DIR=.git", which
causes problems for any exec command that wants to run git commands in
a subdirectory.
This isn't a very large regression, since it is not that likely that the
exec command will run a git command, and even less likely that it will
need to do so in a subdir. This regression was discovered by a build
system which uses git-describe to find the current version of the build
system, and happened to do so from the src/ sub directory of the
project.
Fix this by passing in the absolute path of the git directory into the
child environment.
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jakub Bereżański [Mon, 30 Oct 2017 17:20:44 +0000 (18:20 +0100)]
wincred: handle empty username/password correctly
Empty (length 0) usernames and/or passwords, when saved in the Windows
Credential Manager, come back as null when reading the credential.
One use case for such empty credentials is with NTLM authentication, where
empty username and password instruct libcurl to authenticate using the
credentials of the currently logged-on user (single sign-on).
When locating the relevant credentials, make empty username match null.
When outputting the credentials, handle nulls correctly.
Signed-off-by: Jakub Bereżański <kuba@berezanscy.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jakub Bereżański [Mon, 30 Oct 2017 17:20:12 +0000 (18:20 +0100)]
t0302: check helper can handle empty credentials
Make sure the helper does not crash when blank username and password is
provided. If the helper can save such credentials, it should be able to
read them back.
Signed-off-by: Jakub Bereżański <kuba@berezanscy.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Mon, 30 Oct 2017 17:19:42 +0000 (18:19 +0100)]
mingw: include the full version information in the resources
This fixes https://github.com/git-for-windows/git/issues/723
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Antoine Beaupré [Sun, 29 Oct 2017 18:15:11 +0000 (14:15 -0400)]
remote-mediawiki: limit filenames to legal
mediawiki pages can have names longer than NAME_MAX (generally 255)
characters, which will fail on checkout. we simply strip out extra
characters, which may mean one page's content will overwrite another
(the last editing winning).
ideally, we would do a more clever system to find unique names, but
that would be more difficult and error prone for a situation that
should rarely happen in the first place.
Signed-off-by: Antoine Beaupré <anarcat@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:11 +0000 (11:19 -0700)]
diff: make struct diff_flags members lowercase
Now that the flags stored in struct diff_flags are being accessed
directly and not through macros, change all struct members from being
uppercase to lowercase.
This conversion is done using the following semantic patch:
@@
expression E;
@@
- E.RECURSIVE
+ E.recursive
@@
expression E;
@@
- E.TREE_IN_RECURSIVE
+ E.tree_in_recursive
@@
expression E;
@@
- E.BINARY
+ E.binary
@@
expression E;
@@
- E.TEXT
+ E.text
@@
expression E;
@@
- E.FULL_INDEX
+ E.full_index
@@
expression E;
@@
- E.SILENT_ON_REMOVE
+ E.silent_on_remove
@@
expression E;
@@
- E.FIND_COPIES_HARDER
+ E.find_copies_harder
@@
expression E;
@@
- E.FOLLOW_RENAMES
+ E.follow_renames
@@
expression E;
@@
- E.RENAME_EMPTY
+ E.rename_empty
@@
expression E;
@@
- E.HAS_CHANGES
+ E.has_changes
@@
expression E;
@@
- E.QUICK
+ E.quick
@@
expression E;
@@
- E.NO_INDEX
+ E.no_index
@@
expression E;
@@
- E.ALLOW_EXTERNAL
+ E.allow_external
@@
expression E;
@@
- E.EXIT_WITH_STATUS
+ E.exit_with_status
@@
expression E;
@@
- E.REVERSE_DIFF
+ E.reverse_diff
@@
expression E;
@@
- E.CHECK_FAILED
+ E.check_failed
@@
expression E;
@@
- E.RELATIVE_NAME
+ E.relative_name
@@
expression E;
@@
- E.IGNORE_SUBMODULES
+ E.ignore_submodules
@@
expression E;
@@
- E.DIRSTAT_CUMULATIVE
+ E.dirstat_cumulative
@@
expression E;
@@
- E.DIRSTAT_BY_FILE
+ E.dirstat_by_file
@@
expression E;
@@
- E.ALLOW_TEXTCONV
+ E.allow_textconv
@@
expression E;
@@
- E.TEXTCONV_SET_VIA_CMDLINE
+ E.textconv_set_via_cmdline
@@
expression E;
@@
- E.DIFF_FROM_CONTENTS
+ E.diff_from_contents
@@
expression E;
@@
- E.DIRTY_SUBMODULES
+ E.dirty_submodules
@@
expression E;
@@
- E.IGNORE_UNTRACKED_IN_SUBMODULES
+ E.ignore_untracked_in_submodules
@@
expression E;
@@
- E.IGNORE_DIRTY_SUBMODULES
+ E.ignore_dirty_submodules
@@
expression E;
@@
- E.OVERRIDE_SUBMODULE_CONFIG
+ E.override_submodule_config
@@
expression E;
@@
- E.DIRSTAT_BY_LINE
+ E.dirstat_by_line
@@
expression E;
@@
- E.FUNCCONTEXT
+ E.funccontext
@@
expression E;
@@
- E.PICKAXE_IGNORE_CASE
+ E.pickaxe_ignore_case
@@
expression E;
@@
- E.DEFAULT_FOLLOW_RENAMES
+ E.default_follow_renames
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:10 +0000 (11:19 -0700)]
diff: remove DIFF_OPT_CLR macro
Remove the `DIFF_OPT_CLR` macro and instead set the flags directly.
This conversion is done using the following semantic patch:
@@
expression E;
identifier fld;
@@
- DIFF_OPT_CLR(&E, fld)
+ E.flags.fld = 0
@@
type T;
T *ptr;
identifier fld;
@@
- DIFF_OPT_CLR(ptr, fld)
+ ptr->flags.fld = 0
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:09 +0000 (11:19 -0700)]
diff: remove DIFF_OPT_SET macro
Remove the `DIFF_OPT_SET` macro and instead set the flags directly.
This conversion is done using the following semantic patch:
@@
expression E;
identifier fld;
@@
- DIFF_OPT_SET(&E, fld)
+ E.flags.fld = 1
@@
type T;
T *ptr;
identifier fld;
@@
- DIFF_OPT_SET(ptr, fld)
+ ptr->flags.fld = 1
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:08 +0000 (11:19 -0700)]
diff: remove DIFF_OPT_TST macro
Remove the `DIFF_OPT_TST` macro and instead access the flags directly.
This conversion is done using the following semantic patch:
@@
expression E;
identifier fld;
@@
- DIFF_OPT_TST(&E, fld)
+ E.flags.fld
@@
type T;
T *ptr;
identifier fld;
@@
- DIFF_OPT_TST(ptr, fld)
+ ptr->flags.fld
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:07 +0000 (11:19 -0700)]
diff: remove touched flags
Now that the set of parallel touched flags are no longer being used,
remove them.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:06 +0000 (11:19 -0700)]
diff: add flag to indicate textconv was set via cmdline
git-show is unique in that it wants to use textconv by default except
for when it is showing blobs. When asked to show a blob, show doesn't
want to use textconv unless the user explicitly requested that it be
used by providing the command line flag '--textconv'.
Currently this is done by using a parallel set of 'touched' flags which
get set every time a particular flag is set or cleared. In a future
patch we want to eliminate this parallel set of flags so instead of
relying on if the textconv flag has been touched, add a new flag
'TEXTCONV_SET_VIA_CMDLINE' which is only set if textconv is set to true
via the command line.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Tue, 31 Oct 2017 18:19:05 +0000 (11:19 -0700)]
diff: convert flags to be stored in bitfields
We cannot add many more flags to the diff machinery due to the
limitations of the number of flags that can be stored in a single
unsigned int. In order to allow for more flags to be added to the diff
machinery in the future this patch converts the flags to be stored in
bitfields in 'struct diff_flags'.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 31 Oct 2017 09:58:16 +0000 (10:58 +0100)]
sequencer: use O_TRUNC to truncate files
Cut off any previous content of the file to be rewritten by passing the
flag O_TRUNC to open(2) instead of calling ftruncate(2) at the end.
That's easier and shorter.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 31 Oct 2017 09:54:21 +0000 (10:54 +0100)]
sequencer: factor out rewrite_file()
Reduce code duplication by extracting a function for rewriting an
existing file.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Adam Dinwoodie [Tue, 31 Oct 2017 13:19:03 +0000 (13:19 +0000)]
t5580: add Cygwin support
t5580 tests that specifying Windows UNC paths works with Git. Cygwin
supports UNC paths, albeit only using forward slashes, not backslashes,
so run the compatible tests on Cygwin as well as MinGW.
The only complication is Cygwin's `pwd`, which returns a *nix-style
path, and that's not suitable for calculating the UNC path to the
current directory. Instead use Cygwin's `cygpath` utility to get the
Windows-style path.
Signed-off-by: Adam Dinwoodie <adam@dinwoodie.org>
Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 31 Oct 2017 13:50:06 +0000 (14:50 +0100)]
sha1_file: use hex_to_bytes()
The path of a loose object contains its hash value encoded into two
substrings of 2 and 38 hexadecimal digits separated by a slash. The
first part is handed to for_each_file_in_obj_subdir() in decoded form as
subdir_nr. The current code builds a full hexadecimal representation of
the hash in a temporary buffer, then uses get_oid_hex() to decode it.
Avoid the intermediate step by taking subdir_nr as-is and using
hex_to_bytes() directly on the second substring. That's shorter and
easier.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 31 Oct 2017 13:49:56 +0000 (14:49 +0100)]
http-push: use hex_to_bytes()
The path of a loose object contains its hash value encoded into two
substrings of hexadecimal digits, separated by a slash. The current
code copies the pieces into a temporary buffer to get rid of the slash
and then uses get_oid_hex() to decode the hash value.
Avoid the copy by using hex_to_bytes() directly on the substrings.
That's shorter and easier.
While at it correct the length of the second substring in a comment.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 31 Oct 2017 13:46:49 +0000 (14:46 +0100)]
notes: move hex_to_bytes() to hex.c and export it
Make the function for converting pairs of hexadecimal digits to binary
available to other call sites.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Andrey Okoshkin [Tue, 31 Oct 2017 09:09:13 +0000 (12:09 +0300)]
merge-recursive: check GIT_MERGE_VERBOSITY only once
Get rid of the duplicated getenv('GIT_MERGE_VERBOSITY') calls with the same
constant string argument. This makes code more readable and prevents typo in
the further development.
Signed-off-by: Andrey Okoshkin <a.okoshkin@samsung.com>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brandon Williams [Mon, 30 Oct 2017 19:46:43 +0000 (12:46 -0700)]
add, reset: use DIFF_OPT_SET macro to set a diff flag
Instead of explicitly setting the 'DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG'
flag, use the 'DIFF_OPT_SET' macro.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jameson Miller [Mon, 30 Oct 2017 17:21:40 +0000 (13:21 -0400)]
status: test ignored modes
Add tests around status reporting ignord files that match an exclude
pattern for both --untracked-files=normal and --untracked-files=all.
Signed-off-by: Jameson Miller <jamill@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jameson Miller [Mon, 30 Oct 2017 17:21:39 +0000 (13:21 -0400)]
status: document options to show matching ignored files
Signed-off-by: Jameson Miller <jamill@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jameson Miller [Mon, 30 Oct 2017 17:21:38 +0000 (13:21 -0400)]
status: report matching ignored and normal untracked
Teach status command to handle `--ignored=matching` with
`--untracked-files=normal`
Signed-off-by: Jameson Miller <jamill@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jameson Miller [Mon, 30 Oct 2017 17:21:37 +0000 (13:21 -0400)]
status: add option to show ignored files differently
Teach the status command more flexibility in how ignored files are
reported. Currently, the reporting of ignored files and untracked
files are linked. You cannot control how ignored files are reported
independently of how untracked files are reported (i.e. `all` vs
`normal`). This makes it impossible to show untracked files with the
`all` option, but show ignored files with the `normal` option.
This work 1) adds the ability to control the reporting of ignored
files independently of untracked files and 2) introduces the concept
of status reporting ignored paths that explicitly match an ignored
pattern. There are 2 benefits to these changes: 1) if a consumer needs
all untracked files but not all ignored files, there is a performance
benefit to not scanning all contents of an ignored directory and 2)
returning ignored files that explicitly match a path allow a consumer
to make more informed decisions about when a status result might be
stale.
This commit implements --ignored=matching with --untracked-files=all.
The following commit will implement --ignored=matching with
--untracked=files=normal.
As an example of where this flexibility could be useful is that our
application (Visual Studio) runs the status command and presents the
output. It shows all untracked files individually (e.g. using the
'--untracked-files==all' option), and would like to know about which
paths are ignored. It uses information about ignored paths to make
decisions about when the status result might have changed.
Additionally, many projects place build output into directories inside
a repository's working directory (e.g. in "bin/" and "obj/"
directories). Normal usage is to explicitly ignore these 2 directory
names in the .gitignore file (rather than or in addition to the *.obj
pattern).If an application could know that these directories are
explicitly ignored, it could infer that all contents are ignored as
well and make better informed decisions about files in these
directories. It could infer that any changes under these paths would
not affect the output of status. Additionally, there can be a
significant performance benefit by avoiding scanning through ignored
directories.
When status is set to report matching ignored files, it has the
following behavior. Ignored files and directories that explicitly
match an exclude pattern are reported. If an ignored directory matches
an exclude pattern, then the path of the directory is returned. If a
directory does not match an exclude pattern, but all of its contents
are ignored, then the contained files are reported instead of the
directory.
Signed-off-by: Jameson Miller <jamill@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Haggerty [Thu, 26 Oct 2017 08:18:53 +0000 (10:18 +0200)]
t0000: check whether the shell supports the "local" keyword
Add a test balloon to see if we get complaints from anybody who is
using a shell that doesn't support the "local" keyword. If so, this
test can be reverted. If not, we might want to consider using "local"
in shell code throughout the git code base.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 30 Oct 2017 05:00:44 +0000 (14:00 +0900)]
Git 2.15
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Haggerty [Sat, 28 Oct 2017 09:16:02 +0000 (11:16 +0200)]
files-backend: don't rewrite the `packed-refs` file unnecessarily
Even when we are deleting references, we needn't overwrite the
`packed-refs` file if the references that we are deleting only exist
as loose references. Implement this optimization as follows:
* Add a function `is_packed_transaction_needed()`, which checks
whether a given packed-refs transaction actually needs to be carried
out (i.e., it returns false if the transaction obviously wouldn't
have any effect). This function must be called while holding the
`packed-refs` lock to avoid races.
* Change `files_transaction_prepare()` to check whether the
packed-refs transaction is actually needed. If not, squelch it, but
continue holding the `packed-refs` lock until the end of the
transaction to avoid races.
This fixes a mild regression caused by
dc39e09942 (files_ref_store:
use a transaction to update packed refs, 2017-09-08). Before that
commit, unnecessary rewrites of `packed-refs` were suppressed by
`repack_without_refs()`. But the transaction-based writing introduced
by that commit didn't perform that optimization.
Note that the pre-
dc39e09942 code still had to *read* the whole
`packed-refs` file to determine that the rewrite could be skipped, so
the performance for the cases that the write could be elided was
`O(N)` in the number of packed references both before and after
dc39e09942. But after that commit the constant factor increased.
This commit reimplements the optimization of eliding unnecessary
`packed-refs` rewrites. That, plus the fact that since
cfa2e29c34 (packed_ref_store: get rid of the `ref_cache` entirely,
2017-03-17) we don't necessarily have to read the whole `packed-refs`
file at all, means that deletes of one or a few loose references can
now be done with `O(n lg N)` effort, where `n` is the number of loose
references being deleted and `N` is the total number of packed
references.
This commit fixes two tests in t1409.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 30 Oct 2017 00:32:54 +0000 (09:32 +0900)]
Merge tag 'l10n-2.15.0-rnd2.1' of git://github.com/git-l10n/git-po
l10n for Git 2.15.0 round 2 with Catalan updates
* tag 'l10n-2.15.0-rnd2.1' of git://github.com/git-l10n/git-po:
l10n: Update Catalan translation
Jordi Mas [Wed, 25 Oct 2017 17:50:59 +0000 (19:50 +0200)]
l10n: Update Catalan translation
Signed-off-by: Jordi Mas <jmas@softcatala.org>
Andrey Okoshkin [Fri, 27 Oct 2017 09:33:25 +0000 (12:33 +0300)]
diff: fix lstat() error handling in diff_populate_filespec()
Add lstat() error handling not only for ENOENT case.
Otherwise uninitialised 'struct stat st' variable is used later in case of
lstat() non-ENOENT failure which leads to processing of rubbish values of
file mode ('S_ISLNK(st.st_mode)' check) or size ('xsize_t(st.st_size)').
Signed-off-by: Andrey Okoshkin <a.okoshkin@samsung.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Haggerty [Sat, 28 Oct 2017 07:27:15 +0000 (09:27 +0200)]
Merge branch 'bc/object-id' into base
Junio C Hamano [Sat, 28 Oct 2017 01:20:30 +0000 (10:20 +0900)]
Hopefully final batch before 2.15
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 28 Oct 2017 01:18:42 +0000 (10:18 +0900)]
Merge branch 'sg/rev-list-doc-reorder-fix'
Doc flow fix.
* sg/rev-list-doc-reorder-fix:
rev-list-options.txt: use correct directional reference
Junio C Hamano [Sat, 28 Oct 2017 01:18:40 +0000 (10:18 +0900)]
Merge branch 'sb/rev-parse-show-superproject-root'
Doc markup fix.
* sb/rev-parse-show-superproject-root:
docs: fix formatting of rev-parse's --show-superproject-working-tree
Junio C Hamano [Sat, 28 Oct 2017 01:18:39 +0000 (10:18 +0900)]
Merge branch 'ao/path-use-xmalloc'
A possible oom error is now caught as a fatal error, instead of
continuing and dereferencing NULL.
* ao/path-use-xmalloc:
path.c: use xmalloc() in add_to_trie()
Junio C Hamano [Sat, 28 Oct 2017 01:18:39 +0000 (10:18 +0900)]
Merge branch 'np/config-path-doc'
Doc update.
* np/config-path-doc:
config doc: clarify "git config --path" example
Sebastian Schuberth [Thu, 26 Oct 2017 11:53:37 +0000 (11:53 +0000)]
docs: fix formatting of rev-parse's --show-superproject-working-tree
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Thu, 26 Oct 2017 15:26:37 +0000 (17:26 +0200)]
rev-list-options.txt: use correct directional reference
The descriptions of the options '--parents', '--children' and
'--graph' say "see 'History Simplification' below", although the
referred section is in fact above the description of these options.
Send readers in the right direction by saying "above" instead of
"below".
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Haggerty [Wed, 25 Oct 2017 09:53:20 +0000 (11:53 +0200)]
t1409: check that `packed-refs` is not rewritten unnecessarily
There is no need to rewrite the `packed-refs` file except for the case
that we are deleting a reference that has a packed version. Verify
that `packed-refs` is not rewritten when it shouldn't be.
In fact, two of these tests fail:
* A new (empty) `packed-refs` file is created when deleting any loose
reference and no `packed-refs` file previously existed.
* The `packed-refs` file is rewritten unnecessarily when deleting a
loose reference that has no packed counterpart.
Both problems will be fixed in the next commit.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Thomas Gummerer [Sun, 22 Oct 2017 17:04:09 +0000 (18:04 +0100)]
stash: remove now superfluos help for "stash push"
With the 'git stash save' interface, it was easily possible for users to
try to add a message which would start with "-", which 'git stash save'
would interpret as a command line argument, and fail. For this case we
added some extra help on how to create a stash with a message starting
with "-".
For 'stash push', messages are passed with the -m flag, avoiding this
potential pitfall. Now only pathspecs starting with "-" would have to
be distinguished from command line parameters by using
"-- --<pathspec>". This is fairly common in the git command line
interface, and we don't try to guess what the users wanted in the other
cases.
Because this way of passing pathspecs is quite common in other git
commands, and we don't provide any extra help there, do the same in the
error message for 'git stash push'.
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Thomas Gummerer [Sun, 22 Oct 2017 17:04:08 +0000 (18:04 +0100)]
stash: mark "git stash save" deprecated in the man page
'git stash push' fixes a historical wart in the interface of 'git stash
save'. As 'git stash push' has all functionality of 'git stash save',
with a nicer, more consistent user interface deprecate 'git stash
save'. To do this, remove it from the synopsis of the man page, and
move it to a separate section, stating that it is deprecated.
Helped-by: Robert P. J. Day <rpjday@crashcourse.ca>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Thomas Gummerer [Sun, 22 Oct 2017 17:04:07 +0000 (18:04 +0100)]
stash: replace "git stash save" with "git stash push" in the documentation
"git stash push" is the newer interface for creating a stash. While we
are still keeping "git stash save" around for the time being, it's better
to point new users of "git stash" to the more modern (and more feature
rich) interface, instead of teaching them the older version that we
might want to phase out in the future.
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 26 Oct 2017 03:29:23 +0000 (12:29 +0900)]
Merge branch 'mh/ref-locking-fix'
Transactions to update multiple references that involves a deletion
was quite broken in an error codepath and did not abort everything
correctly.
* mh/ref-locking-fix:
files_transaction_prepare(): fix handling of ref lock failure
t1404: add a bunch of tests of D/F conflicts
Johannes Schindelin [Wed, 25 Oct 2017 20:40:40 +0000 (22:40 +0200)]
status: do not get confused by submodules in excluded directories
We meticulously pass the `exclude` flag to the `treat_directory()`
function so that we can indicate that files in it are excluded rather
than untracked when recursing.
But we did not yet treat submodules the same way.
Because of that, `git status --ignored --untracked` with a submodule
`submodule` in a gitignored `tracked/` would show the submodule in the
"Untracked files" section, e.g.
On branch master
Untracked files:
(use "git add <file>..." to include in what will be committed)
tracked/submodule/
Ignored files:
(use "git add -f <file>..." to include in what will be committed)
tracked/submodule/initial.t
Instead, we would want it to show the submodule in the "Ignored files"
section:
On branch master
Ignored files:
(use "git add -f <file>..." to include in what will be committed)
tracked/submodule/
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Stefan Beller [Wed, 25 Oct 2017 18:49:12 +0000 (11:49 -0700)]
diff.c: get rid of duplicate implementation
The implementations in diff.c to detect moved lines needs to compare
strings and hash strings, which is implemented in that file, as well
as in the xdiff library.
Remove the rather recent implementation in diff.c and rely on the well
exercised code in the xdiff lib.
With this change the hash used for bucketing the strings for the moved
line detection changes from FNV32 (that is provided via the hashmaps
memhash) to DJB2 (which is used internally in xdiff). Benchmarks found
on the web[1] do not indicate that these hashes are different in
performance for readable strings.
[1] https://softwareengineering.stackexchange.com/questions/49550/which-hashing-algorithm-is-best-for-uniqueness-and-speed
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Stefan Beller [Wed, 25 Oct 2017 18:49:11 +0000 (11:49 -0700)]
xdiff-interface: export comparing and hashing strings
This will turn out to be useful in a later patch.
xdl_recmatch is exported in xdiff/xutils.h, to be used by various
xdiff/*.c files, but not outside of xdiff/. This one makes it available
to the outside, too.
While at it, add documentation.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Andrey Okoshkin [Tue, 24 Oct 2017 15:15:05 +0000 (18:15 +0300)]
path.c: use xmalloc() in add_to_trie()
Add usage of xmalloc() instead of malloc() in add_to_trie() as xmalloc wraps
and checks memory allocation result.
Signed-off-by: Andrey Okoshkin <a.okoshkin@samsung.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Thomas Braun [Tue, 24 Oct 2017 13:19:31 +0000 (15:19 +0200)]
completion: add remaining flags to checkout
In the commits
1fc458d9 (builtin/checkout: add --recurse-submodules
switch, 2017-03-14),
08d595dc (checkout: add --ignore-skip-worktree-bits
in sparse checkout mode, 2013-04-13) and
32669671 (checkout: introduce
--detach synonym for "git checkout foo^{commit}", 2011-02-08) checkout
gained new flags but the completion was not updated, although these flags
are useful completions. Add them.
The flags --force and --ignore-other-worktrees are not added as they are
potentially dangerous.
The flags --progress and --no-progress are only useful for scripting and are
therefore also not included.
Signed-off-by: Thomas Braun <thomas.braun@virtuell-zuhause.de>
Reviewed-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Haggerty [Tue, 24 Oct 2017 15:16:25 +0000 (17:16 +0200)]
files_transaction_prepare(): fix handling of ref lock failure
Since
dc39e09942 (files_ref_store: use a transaction to update packed
refs, 2017-09-08), failure to lock a reference has been handled
incorrectly by `files_transaction_prepare()`. If
`lock_ref_for_update()` fails in the lock-acquisition loop of that
function, it sets `ret` then breaks out of that loop. Prior to
dc39e09942, that was OK, because the only thing following the loop was
the cleanup code. But
dc39e09942 added another blurb of code between
the loop and the cleanup. That blurb sometimes resets `ret` to zero,
making the cleanup code think that the locking was successful.
Specifically, whenever
* One or more reference deletions have been processed successfully in
the lock-acquisition loop. (Processing the first such reference
causes a packed-ref transaction to be initialized.)
* Then `lock_ref_for_update()` fails for a subsequent reference. Such
a failure can happen for a number of reasons, such as the old SHA-1
not being correct, lock contention, etc. This causes a `break` out
of the lock-acquisition loop.
* The `packed-refs` lock is acquired successfully and
`ref_transaction_prepare()` succeeds for the packed-ref transaction.
This has the effect of resetting `ret` back to 0, and making the
cleanup code think that lock acquisition was successful.
In that case, any reference updates that were processed prior to
breaking out of the loop would be carried out (loose and packed), but
the reference that couldn't be locked and any subsequent references
would silently be ignored.
This can easily cause data loss if, for example, the user was trying
to push a new name for an existing branch while deleting the old name.
After the push, the branch could be left unreachable, and could even
subsequently be garbage-collected.
This problem was noticed in the context of deleting one reference and
creating another in a single transaction, when the two references D/F
conflict with each other, like
git update-ref --stdin <<EOF
delete refs/foo
create refs/foo/bar HEAD
EOF
This triggers the above bug because the deletion is processed
successfully for `refs/foo`, then the D/F conflict causes
`lock_ref_for_update()` to fail when `refs/foo/bar` is processed. In
this case the transaction *should* fail, but instead it causes
`refs/foo` to be deleted without creating `refs/foo`. This could
easily result in data loss.
The fix is simple: instead of just breaking out of the loop, jump
directly to the cleanup code. This fixes some tests in t1404 that were
added in the previous commit.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Haggerty [Tue, 24 Oct 2017 15:16:24 +0000 (17:16 +0200)]
t1404: add a bunch of tests of D/F conflicts
It is currently not allowed, in a single transaction, to add one
reference and delete another reference if the two reference names D/F
conflict with each other (e.g., like `refs/foo/bar` and `refs/foo`).
The reason is that the code would need to take locks
$GIT_DIR/refs/foo.lock
$GIT_DIR/refs/foo/bar.lock
But the latter lock couldn't coexist with the loose reference file
$GIT_DIR/refs/foo
, because `$GIT_DIR/refs/foo` cannot be both a directory and a file at
the same time (hence the name "D/F conflict).
Add a bunch of tests that we cleanly reject such transactions.
In fact, many of the new tests currently fail. They will be fixed in
the next commit along with an explanation.
Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 24 Oct 2017 02:44:52 +0000 (11:44 +0900)]
Merge tag 'l10n-2.15.0-rnd2' of git://github.com/git-l10n/git-po
l10n for Git 2.15.0 round 2
* tag 'l10n-2.15.0-rnd2' of git://github.com/git-l10n/git-po: (22 commits)
l10n: zh_CN: review for git v2.15.0 l10n round 2
l10n: zh_CN: for git v2.15.0 l10n round 2
l10n: de.po: fix typos
l10n: de.po: translate 70 new messages
l10n: ru.po: update Russian translation
l10n: vi.po(3245t): Updated Vietnamese translation for v2.15.0 round 2
l10n: sv.po: Update Swedish translation (3245t0f0u)
l10n: fr.po: v2.15.0 round 2
l10n: fr.po change translation of "First, rewinding"
l10n: fr.po fix some mistakes
l10n: Update Catalan translation
l10n: ko.po: Update Korean translation
l10n: es.po: v2.15.0 round 2
l10n: git.pot: v2.15.0 round 2 (2 new, 2 removed)
l10n: ru.po: update Russian translation
l10n: bg.po: Updated Bulgarian translation (3245t)
l10n: sv.po: Update Swedish translation (3245t0f0u)
l10n: vi.po(3245t): Updated Vietnamese translation for v2.15.0
l10n: es.po: Update translation v2.15.0 round 1
l10n: git.pot: v2.15.0 round 1 (68 new, 36 removed)
...
Jiang Xin [Tue, 24 Oct 2017 02:11:48 +0000 (10:11 +0800)]
Merge branch 'jx/zh_CN-proposed' of github.com:jiangxin/git
* 'jx/zh_CN-proposed' of github.com:jiangxin/git:
l10n: zh_CN: review for git v2.15.0 l10n round 2
l10n: zh_CN: for git v2.15.0 l10n round 2
Ray Chen [Mon, 23 Oct 2017 16:17:59 +0000 (00:17 +0800)]
l10n: zh_CN: review for git v2.15.0 l10n round 2
Signed-off-by: Ray Chen <oldsharp@gmail.com>
Jiang Xin [Sun, 8 Oct 2017 07:29:11 +0000 (15:29 +0800)]
l10n: zh_CN: for git v2.15.0 l10n round 2
Translate 69 messages (3245t0f0u) for git v2.15.0-rc2.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Reviewed-by: 依云 <lilydjwg@gmail.com>
Jiang Xin [Tue, 24 Oct 2017 01:56:09 +0000 (09:56 +0800)]
Merge branch 'master' of https://github.com/ralfth/git-po-de
* 'master' of https://github.com/ralfth/git-po-de:
l10n: de.po: fix typos
l10n: de.po: translate 70 new messages
Junio C Hamano [Tue, 24 Oct 2017 01:11:18 +0000 (10:11 +0900)]
column: do not include pager.c
Everything this file needs from the pager API (e.g. term_columns(),
pager_in_use()) is already declared in the header file it includes.
Noticed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Guillaume Castagnino [Thu, 19 Oct 2017 07:32:46 +0000 (09:32 +0200)]
gitweb: use filetest to allow ACLs
In commit
46a1385 (gitweb: skip unreadable subdirectories, 2017-07-18)
we forgot to handle non-unix ACLs as well. Fix this.
Signed-off-by: Guillaume Castagnino <casta@xwing.info>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Marius Paliga [Mon, 23 Oct 2017 11:44:49 +0000 (13:44 +0200)]
builtin/push.c: add push.pushOption config
Push options need to be given explicitly, via the command line as "git
push --push-option <option>". Add the config option push.pushOption,
which is a multi-valued option, containing push options that are sent
by default.
When push options are set in the lower-priority configulation file
(e.g. /etc/gitconfig, or $HOME/.gitconfig), they can be unset later in
the more specific repository config by the empty string.
Add tests and update documentation as well.
Signed-off-by: Marius Paliga <marius.paliga@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Andre Hinrichs [Thu, 19 Oct 2017 06:25:25 +0000 (08:25 +0200)]
l10n: de.po: fix typos
Signed-off-by: Andre Hinrichs <andre.hinrichs@gmx.de>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Ralf Thielow [Wed, 11 Oct 2017 10:48:48 +0000 (12:48 +0200)]
l10n: de.po: translate 70 new messages
Translate 70 new messages came from git.pot update in
25eab542b
(l10n: git.pot: v2.15.0 round 1 (68 new, 36 removed)) and
9c07fab78
(l10n: git.pot: v2.15.0 round 2 (2 new, 2 removed)).
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Junio C Hamano [Mon, 23 Oct 2017 05:54:30 +0000 (14:54 +0900)]
Sync with 2.14.3
Junio C Hamano [Mon, 23 Oct 2017 05:44:17 +0000 (14:44 +0900)]
Git 2.14.3
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 23 Oct 2017 05:40:00 +0000 (14:40 +0900)]
Merge branch 'jk/info-alternates-fix' into maint
A regression fix for 2.11 that made the code to read the list of
alternate object stores overrun the end of the string.
* jk/info-alternates-fix:
read_info_alternates: warn on non-trivial errors
read_info_alternates: read contents into strbuf
Junio C Hamano [Mon, 23 Oct 2017 05:39:08 +0000 (14:39 +0900)]
Merge branch 'jc/fetch-refspec-doc-update' into maint
"git fetch <there> <src>:<dst>" allows an object name on the <src>
side when the other side accepts such a request since Git v2.5, but
the documentation was left stale.
* jc/fetch-refspec-doc-update:
fetch doc: src side of refspec could be full SHA-1
Junio C Hamano [Mon, 23 Oct 2017 05:37:21 +0000 (14:37 +0900)]
Merge branch 'jk/write-in-full-fix' into maint
Many codepaths did not diagnose write failures correctly when disks
go full, due to their misuse of write_in_full() helper function,
which have been corrected.
* jk/write-in-full-fix:
read_pack_header: handle signed/unsigned comparison in read result
config: flip return value of store_write_*()
notes-merge: use ssize_t for write_in_full() return value
pkt-line: check write_in_full() errors against "< 0"
convert less-trivial versions of "write_in_full() != len"
avoid "write_in_full(fd, buf, len) != len" pattern
get-tar-commit-id: check write_in_full() return against 0
config: avoid "write_in_full(fd, buf, len) < len" pattern
Junio C Hamano [Mon, 23 Oct 2017 05:20:18 +0000 (14:20 +0900)]
Merge branch 'rj/no-sign-compare' into maint
Many codepaths have been updated to squelch -Wsign-compare
warnings.
* rj/no-sign-compare:
ALLOC_GROW: avoid -Wsign-compare warnings
cache.h: hex2chr() - avoid -Wsign-compare warnings
commit-slab.h: avoid -Wsign-compare warnings
git-compat-util.h: xsize_t() - avoid -Wsign-compare warnings
Junio C Hamano [Mon, 23 Oct 2017 05:19:02 +0000 (14:19 +0900)]
Merge branch 'ma/ts-cleanups' into maint
Assorted bugfixes and clean-ups.
* ma/ts-cleanups:
ThreadSanitizer: add suppressions
strbuf_setlen: don't write to strbuf_slopbuf
pack-objects: take lock before accessing `remaining`
convert: always initialize attr_action in convert_attrs
Junio C Hamano [Mon, 23 Oct 2017 05:17:53 +0000 (14:17 +0900)]
Merge branch 'ls/travis-scriptify' into maint
The scripts to drive TravisCI has been reorganized and then an
optimization to avoid spending cycles on a branch whose tip is
tagged has been implemented.
* ls/travis-scriptify:
travis-ci: fix "skip_branch_tip_with_tag()" string comparison
travis: dedent a few scripts that are indented overly deeply
travis-ci: skip a branch build if equal tag is present
travis-ci: move Travis CI code into dedicated scripts
Junio C Hamano [Mon, 23 Oct 2017 05:17:27 +0000 (14:17 +0900)]
Merge branch 'er/fast-import-dump-refs-on-checkpoint' into maint
The checkpoint command "git fast-import" did not flush updates to
refs and marks unless at least one object was created since the
last checkpoint, which has been corrected, as these things can
happen without any new object getting created.
* er/fast-import-dump-refs-on-checkpoint:
fast-import: checkpoint: dump branches/tags/marks even if object_count==0
Junio C Hamano [Mon, 23 Oct 2017 05:14:51 +0000 (14:14 +0900)]
Merge branch 'jt/fast-export-copy-modify-fix' into maint
"git fast-export" with -M/-C option issued "copy" instruction on a
path that is simultaneously modified, which was incorrect.
* jt/fast-export-copy-modify-fix:
fast-export: do not copy from modified file
Junio C Hamano [Mon, 23 Oct 2017 05:14:16 +0000 (14:14 +0900)]
Merge branch 'nd/worktree-kill-parse-ref' into maint
"git branch -M a b" while on a branch that is completely unrelated
to either branch a or branch b misbehaved when multiple worktree
was in use. This has been fixed.
* nd/worktree-kill-parse-ref:
branch: fix branch renaming not updating HEADs correctly
Dimitriy Ryazantcev [Sun, 22 Oct 2017 17:35:13 +0000 (20:35 +0300)]
l10n: ru.po: update Russian translation
Signed-off-by: Dimitriy Ryazantcev <dimitriy.ryazantcev@gmail.com>
Jiang Xin [Sun, 22 Oct 2017 11:01:07 +0000 (19:01 +0800)]
Merge branch 'master' of https://github.com/vnwildman/git
* 'master' of https://github.com/vnwildman/git:
l10n: vi.po(3245t): Updated Vietnamese translation for v2.15.0 round 2
Jeff King [Thu, 19 Oct 2017 17:49:36 +0000 (13:49 -0400)]
worktree: handle broken symrefs in find_shared_symref()
The refs_resolve_ref_unsafe() function may return NULL even
with a REF_ISSYMREF flag if a symref points to a broken ref.
As a result, it's possible for find_shared_symref() to
segfault when it passes NULL to strcmp().
This is hard to trigger for most code paths. We typically
pass HEAD to the function as the symref to resolve, and
programs like "git branch" will bail much earlier if HEAD
isn't valid.
I did manage to trigger it through one very obscure
sequence:
# You have multiple notes refs which conflict.
git notes add -m base
git notes --ref refs/notes/foo add -m foo
# There's left-over cruft in NOTES_MERGE_REF that
# makes it a broken symref (in this case we point
# to a syntactically invalid ref).
echo "ref: refs/heads/master.lock" >.git/NOTES_MERGE_REF
# You try to merge the notes. We read the broken value in
# order to complain that another notes-merge is
# in-progress, but we segfault in find_shared_symref().
git notes merge refs/notes/foo
This is obviously silly and almost certainly impossible to
trigger accidentally, but it does show that the bug is
triggerable from at least one code path. In addition, it
would trigger if we saw a transient filesystem error when
resolving the pointed-to ref.
We can fix this by treating NULL the same as a non-matching
symref. Arguably we'd prefer to know if a symref points to
"refs/heads/foo", but "refs/heads/foo" is broken. But
refs_resolve_ref_unsafe() isn't capable of giving us that
information, so this is the best we can do.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 17:49:01 +0000 (13:49 -0400)]
log: handle broken HEAD in decoration check
The resolve_ref_unsafe() function may return NULL even with
a REF_ISSYMREF flag if a symref points to a broken ref. As a
result, it's possible for the decoration code's "is this
branch the current HEAD" check to segfault when it passes
the NULL to starts_with().
This is unlikely in practice, since we can only reach this
code if we already resolved HEAD to a matching sha1 earlier.
But it's possible if HEAD racily becomes broken, or if
there's a transient filesystem error.
We can fix this by returning early in the broken case, since
NULL could not possibly match any of our branch names.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 17:47:30 +0000 (13:47 -0400)]
remote: handle broken symrefs
It's possible for resolve_ref_unsafe() to return NULL with a
REF_ISSYMREF flag if a symref points to a broken ref. In
this case, the read_remote_branches() function will segfault
passing the name to xstrdup().
This is hard to trigger in practice, since this function is
used as a callback to for_each_ref(), which will skip broken
refs in the first place (so it would have to be broken
racily, or for us to see a transient filesystem error).
If we see such a racy broken outcome let's treat it as "not
a symref". This is exactly the same thing that would happen
in the non-racy case (our function would not be called at
all, as for_each_ref would skip the broken symref).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 17:46:21 +0000 (13:46 -0400)]
test-ref-store: avoid passing NULL to printf
It's possible for resolve_ref_unsafe() to return NULL (e.g.,
if we are reading and the ref does not exist), in which case
we'll pass NULL to printf. On glibc systems this produces
"(null)", but on others it may segfault.
The tests don't expect any such case, but if we ever did
trigger this, we would prefer to cleanly fail the test with
unexpected input rather than segfault. Let's manually
replace NULL with "(null)". The exact value doesn't matter,
as it won't match any possible ref the caller could expect
(and anyway, the exit code of the program will tell whether
"ref" is valid or not).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Andrey Okoshkin [Fri, 20 Oct 2017 11:03:28 +0000 (14:03 +0300)]
commit: check result of resolve_ref_unsafe
Add check of the resolved HEAD reference while printing of a commit summary.
resolve_ref_unsafe() may return NULL pointer if underlying calls of lstat() or
open() fail in files_read_raw_ref().
Such situation can be caused by race: file becomes inaccessible to this moment.
Signed-off-by: Andrey Okoshkin <a.okoshkin@samsung.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 20:31:20 +0000 (16:31 -0400)]
diff: handle NULs in get_string_hash()
For computing moved lines, we feed the characters of each
line into a hash. When we've been asked to ignore
whitespace, then we pick each character using next_byte(),
which returns -1 on end-of-string, which it determines using
the start/end pointers we feed it.
However our check of its return value treats "0" the same as
"-1", meaning we'd quit if the string has an embedded NUL.
This is unlikely to ever come up in practice since our line
boundaries generally come from calling strlen() in the first
place.
But it was a bit surprising to me as a reader of the
next_byte() code. And it's possible that we may one day feed
this function with more exotic input, which otherwise works
with arbitrary ptr/len pairs.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 20:29:26 +0000 (16:29 -0400)]
diff: fix whitespace-skipping with --color-moved
The code for handling whitespace with --color-moved
represents partial strings as a pair of pointers. There are
two possible conventions for the end pointer:
1. It points to the byte right after the end of the
string.
2. It points to the final byte of the string.
But we seem to use both conventions in the code:
a. we assign the initial pointers from the NUL-terminated
string using (1)
b. we eat trailing whitespace by checking the second
pointer for isspace(), which needs (2)
c. the next_byte() function checks for end-of-string with
"if (cp > endp)", which is (2)
d. in next_byte() we skip past internal whitespace with
"while (cp < end)", which is (1)
This creates fewer bugs than you might think, because there
are some subtle interactions. Because of (a) and (c), we
always return the NUL-terminator from next_byte(). But all
of the callers of next_byte() happen to handle that
gracefully.
Because of the mismatch between (d) and (c), next_byte()
could accidentally return a whitespace character right at
endp. But because of the interaction of (a) and (b), we fail
to actually chomp trailing whitespace, meaning our endp
_always_ points to a NUL, canceling out the problem.
But that does leave (b) as a real bug: when ignoring
whitespace only at the end-of-line, we don't correctly trim
it, and fail to match up lines.
We can fix the whole thing by moving consistently to one
convention. Since convention (1) is idiomatic in our code
base, we'll pick that one.
The existing "-w" and "-b" tests continue to pass, and a new
"--ignore-space-at-eol" shows off the breakage we're fixing.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 20:26:31 +0000 (16:26 -0400)]
t4015: test the output of "diff --color-moved -b"
Commit
fa5ba2c1dd (diff: fix infinite loop with
--color-moved --ignore-space-change, 2017-10-12) added a
test to make sure that "--color-moved -b" doesn't run
forever, but the test in question doesn't actually have any
moved lines in it.
Let's scrap that test and add a variant of the existing
"--color-moved -w" test, but this time we'll check that we
find the move with whitespace changes, but not arbitrary
whitespace additions.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 20:25:57 +0000 (16:25 -0400)]
t4015: check "negative" case for "-w --color-moved"
We test that lines with whitespace changes are not found by
"--color-moved" by default, but are found if "-w" is added.
Let's add one more twist: a line that has non-whitespace
changes should not be marked as a pure move.
This is perhaps an obvious case for us to get right (and we
do), but as we add more whitespace tests, they will form a
pattern of "make sure this case is a move and this other
case is not".
Note that we have to add a line to our moved block, since
having a too-small block doesn't trigger the "moved"
heuristics. And we also add a line of context to ensure
that there's more context lines than moved lines (so the
diff shows us moving the lines up, rather than moving the
context down).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Thu, 19 Oct 2017 20:24:03 +0000 (16:24 -0400)]
t4015: refactor --color-moved whitespace test
In preparation for testing several different whitespace
options, let's split out the setup and cleanup steps of the
whitespace test.
While we're here, let's also switch to using "<<-" to indent
our here-documents properly, and use q_to_tab to more
explicitly mark where we expect whitespace to appear.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 19 Oct 2017 05:49:17 +0000 (14:49 +0900)]
Git 2.15-rc2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 19 Oct 2017 05:45:45 +0000 (14:45 +0900)]
Merge branch 'jc/branch-force-doc-readability-fix'
Doc update.
* jc/branch-force-doc-readability-fix:
branch doc: sprinkle a few commas for readability
Junio C Hamano [Thu, 19 Oct 2017 05:45:45 +0000 (14:45 +0900)]
Merge branch 'dg/filter-branch-filter-order-doc'
Update the documentation for "git filter-branch" so that the filter
options are listed in the same order as they are applied, as
described in an earlier part of the doc.
* dg/filter-branch-filter-order-doc:
doc: list filter-branch subdirectory-filter first
Junio C Hamano [Thu, 19 Oct 2017 05:45:44 +0000 (14:45 +0900)]
Merge branch 'jc/fetch-refspec-doc-update'
"git fetch <there> <src>:<dst>" allows an object name on the <src>
side when the other side accepts such a request since Git v2.5, but
the documentation was left stale.
* jc/fetch-refspec-doc-update:
fetch doc: src side of refspec could be full SHA-1
Junio C Hamano [Thu, 19 Oct 2017 05:45:43 +0000 (14:45 +0900)]
Merge branch 'wk/merge-options-gpg-sign-doc'
Doc updates.
* wk/merge-options-gpg-sign-doc:
Documentation/merge-options.txt: describe -S/--gpg-sign for 'pull'
Nathan Payre [Wed, 18 Oct 2017 20:27:16 +0000 (22:27 +0200)]
config doc: clarify "git config --path" example
Change the word "bla" to "section.variable"; "bla" is a placeholder
for a variable name but it wasn't clear for everyone.
While we're here, also reformat this sample command line to use
monospace instead of italics, to better match the rest of the file.
Use a space instead of a dash in "git config", as is common in the
rest of Git's documentation.
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: MOY Matthieu <matthieu.moy@univ-lyon1.fr>
Signed-off-by: Daniel Bensoussan <daniel.bensoussan--bohm@etu.univ-lyon1.fr>
Signed-off-by: Timothee Albertin <timothee.albertin@etu.univ-lyon1.fr>
Signed-off-by: Nathan Payre <nathan.payre@etu.univ-lyon1.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jiang Xin [Thu, 19 Oct 2017 00:17:23 +0000 (08:17 +0800)]
Merge branch 'l10n_fr_v2.15.0r2' of git://github.com/jnavila/git
* 'l10n_fr_v2.15.0r2' of git://github.com/jnavila/git:
l10n: fr.po: v2.15.0 round 2
l10n: fr.po change translation of "First, rewinding"
l10n: fr.po fix some mistakes