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Preparatory code to later add json output for telemetry data.
* jh/json-writer:
json_writer: new routines to create JSON data
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"make DEVELOPER=1 DEVOPTS=pedantic" allows developers to compile
with -pedantic option, which may catch more problematic program
constructs and potential bugs.
* bb/make-developer-pedantic:
Makefile: add a DEVOPTS flag to get pedantic compilation
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The singleton commit-graph in-core instance is made per in-core
repository instance.
* jt/commit-graph-per-object-store:
commit-graph: add repo arg to graph readers
commit-graph: store graph in struct object_store
commit-graph: add free_commit_graph
commit-graph: add missing forward declaration
object-store: add missing include
commit-graph: refactor preparing commit graph
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Add a server-side knob to skip commits in exponential/fibbonacci
stride in an attempt to cover wider swath of history with a smaller
number of iterations, potentially accepting a larger packfile
transfer, instead of going back one commit a time during common
ancestor discovery during the "git fetch" transaction.
* jt/fetch-negotiator-skipping:
negotiator/skipping: skip commits during fetch
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Code restructuring and a small fix to transport protocol v2 during
fetching.
* jt/fetch-pack-negotiator:
fetch-pack: introduce negotiator API
fetch-pack: move common check and marking together
fetch-pack: make negotiation-related vars local
fetch-pack: use ref adv. to prune "have" sent
fetch-pack: directly end negotiation if ACK ready
fetch-pack: clear marks before re-marking
fetch-pack: split up everything_local()
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In the interest of code hygiene, make it easier to compile Git with the
flag -pedantic.
Pure pedantic compilation with GCC 7.3 results in one warning per use of
the translation macro `N_`:
warning: array initialized from parenthesized string constant [-Wpedantic]
Therefore also disable the parenthesising of i18n strings with
-DUSE_PARENS_AROUND_GETTEXT_N=0.
Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build fix.
* js/enhanced-version-info:
Makefile: fix the "built from commit" code
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POSIX portability fix in Makefile to fix a glitch introduced a few
releases ago.
* dj/runtime-prefix:
Makefile: tweak sed invocation
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Add a struct repository argument to the functions in commit-graph.h that
read the commit graph. (This commit does not affect functions that write
commit graphs.)
Because the commit graph functions can now read the commit graph of any
repository, the global variable core_commit_graph has been removed.
Instead, the config option core.commitGraph is now read on the first
time in a repository that a commit is attempted to be parsed using its
commit graph.
This commit includes a test that exercises the functionality on an
arbitrary repository that is not the_repository.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new negotiation algorithm used during fetch that skips
commits in an effort to find common ancestors faster. The skips grow
similarly to the Fibonacci sequence as the commit walk proceeds further
away from the tips. The skips may cause unnecessary commits to be
included in the packfile, but the negotiation step typically ends more
quickly.
Usage of this algorithm is guarded behind the configuration flag
fetch.negotiationAlgorithm.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add "struct json_writer" and a series of jw_ routines to compose JSON
data into a string buffer. The resulting string may then be printed by
commands wanting to support a JSON-like output format.
The json_writer is limited to correctly formatting structured data for
output. It does not attempt to build an object model of the JSON data.
We say "JSON-like" because we do not enforce the Unicode (usually UTF-8)
requirement on string fields. Internally, Git does not necessarily have
Unicode/UTF-8 data for most fields, so it is currently unclear the best
way to enforce that requirement. For example, on Linux pathnames can
contain arbitrary 8-bit character data, so a command like "status" would
not know how to encode the reported pathnames. We may want to revisit
this (or double encode such strings) in the future.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: René Scharfe <l.s.r@web.de>
Helped-by: Wink Saville <wink@saville.com>
Helped-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In ed32b788c06 (version --build-options: report commit, too, if
possible, 2017-12-15), we introduced code to let `git version
--build-options` report the current commit from which the binaries were
built, if any.
To prevent erroneous commits from being reported (e.g. when unpacking
Git's source code from a .tar.gz file into a subdirectory of a different
Git project, as e.g. git_osx_installer does), we painstakingly set
GIT_CEILING_DIRECTORIES when trying to determine the current commit.
Except that we got the quoting wrong, and that variable therefore does
not have the desired effect.
The issue is that the $(shell) is resolved before the output is stuffed
into the command-line with -DGIT_BUILT_FROM_COMMIT, and therefore is
*not* inside quotes. And thus backslashing the quotes is wrong, as the
quote gets literally inserted into the CEILING_DIRECTORIES variable.
Let's fix that quoting, and while at it, also suppress the unhelpful
message
fatal: not a git repository (or any of the parent directories): .git
that gets printed to stderr if no current commit could be determined,
and might scare the occasional developer who simply tries to build Git
from scratch.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With GNU sed, the r command doesn't care if a space separates it and
the filename it reads from.
With SunOS sed, the space is required.
Signed-off-by: Alejandro R. Sedeño <asedeno@mit.edu>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Separate "rebase -p" codepath out of "rebase -i" implementation to
slim down the latter and make it easier to manage.
* ag/rebase-p:
rebase: remove -p code from git-rebase--interactive.sh
rebase: use the new git-rebase--preserve-merges.sh
rebase: strip unused code in git-rebase--preserve-merges.sh
rebase: introduce a dedicated backend for --preserve-merges
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Modernize a less often used command.
* jk/show-index:
show-index: update documentation for index v2
make show-index a builtin
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"make NO_ICONV=NoThanks" did not override NEEDS_LIBICONV
(i.e. linkage of -lintl, -liconv, etc. that are platform-specific
tweaks), which has been corrected.
* es/make-no-iconv:
Makefile: make NO_ICONV really mean "no iconv"
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The Makefile tweak NO_ICONV is meant to allow Git to be built without
iconv in case iconv is not installed or is otherwise dysfunctional.
However, NO_ICONV's disabling of iconv is incomplete and can incorrectly
allow "-liconv" to slip into the linker flags when NEEDS_LIBICONV is
defined, which breaks the build when iconv is not installed.
On some platforms, iconv lives directly in libc, whereas, on others it
resides in libiconv. For the latter case, NEEDS_LIBICONV instructs the
Makefile to add "-liconv" to the linker flags. config.mak.uname
automatically defines NEEDS_LIBICONV for platforms which require it.
The adding of "-liconv" is done unconditionally, despite NO_ICONV.
Work around this problem by making NO_ICONV take precedence over
NEEDS_LIBICONV.
Reported by: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce the new files fetch-negotiator.{h,c}, which contains an API
behind which the details of negotiation are abstracted. Currently, only
one algorithm is available: the existing one.
This patch is written to be easily reviewed: static functions are
moved verbatim from fetch-pack.c to negotiator/default.c, and it can be
seen that the lines replaced by negotiator->X() calls are present in the
X() functions respectively.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The list of commands with their various attributes were spread
across a few places in the build procedure, but it now is getting a
bit more consolidated to allow more automation.
* nd/command-list:
completion: allow to customize the completable command list
completion: add and use --list-cmds=alias
completion: add and use --list-cmds=nohelpers
Move declaration for alias.c to alias.h
completion: reduce completable command list
completion: let git provide the completable command list
command-list.txt: documentation and guide line
help: use command-list.txt for the source of guides
help: add "-a --verbose" to list all commands with synopsis
git: support --list-cmds=list-<category>
completion: implement and use --list-cmds=main,others
git --list-cmds: collect command list in a string_list
git.c: convert --list-* to --list-cmds=*
Remove common-cmds.h
help: use command-list.h for common command list
generate-cmds.sh: export all commands to command-list.h
generate-cmds.sh: factor out synopsis extract code
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This duplicates git-rebase--interactive.sh to
git-rebase--preserve-merges.sh. This is done to split -p from -i. No
modifications are made to this file here, but any code that is not used
by -p will be stripped in the next commit.
Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
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The git-show-index command is built as its own separate
program. There's really no good reason for this, and it
means we waste extra space on disk (and CPU time running the
linker). Let's fold it in to the main binary as a builtin.
The history here is actually a bit amusing. The program
itself is mostly self-contained, and doesn't even use our
normal pack index code. In a5031214c4 (slim down "git
show-index", 2010-01-21), we even stopped using xmalloc() so
that it could avoid libgit.a entirely. But then 040a655116
(cleanup: use internal memory allocation wrapper functions
everywhere, 2011-10-06) switched that back to xmalloc, which
later become ALLOC_ARRAY().
Making it a builtin should give us the best of both worlds:
no wasted space and no need to avoid the usual patterns.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The help command currently hard codes the list of guides and their
summary in C. Let's move this list to command-list.txt. This lets us
extract summary lines from Documentation/git*.txt. This also
potentially lets us list guides in git.txt, but I'll leave that for
now.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In preparation for performing a refactor on refspec related code, move
the refspec parsing logic into its own file.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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After the last patch, common-cmds.h is no longer used (and it was
actually broken). Remove all related code. command-list.h will take
its place from now on.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The previous commit added code generation for all_cmd_desc[] which
includes almost everything we need to generate common command list.
Convert help code to use that array instead and drop common_cmds[] array.
The description of each common command group is removed from
command-list.txt. This keeps this file format simpler. common-cmds.h
will not be generated correctly after this change due to the
command-list.txt format change. But it does not matter and
common-cmds.h will be removed.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current generate-cmds.sh generates just enough to print "git help"
output. That is, it only extracts help text for common commands.
The script is now updated to extract help text for all commands and
keep command classification a new file, command-list.h. This will be
useful later:
- "git help -a" could print a short summary of all commands instead of
just the common ones.
- "git" could produce a list of commands of one or more category. One
of its use is to reduce another command classification embedded in
git-completion.bash.
The new file can be generated but is not used anywhere yet. The plan
is we migrate away from common-cmds.h. Then we can kill off
common-cmds.h build rules and generation code (and also delete
duplicate content in command-list.h which we keep for now to not mess
generate-cmds.sh up too much).
PS. The new fixed column requirement on command-list.txt is
technically not needed. But it helps simplify the code a bit at this
stage. We could lift this restriction later if we want to.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/runtime-prefix:
Avoid multiple PREFIX definitions
git_setup_gettext: plug memory leak
gettext: avoid initialization if the locale dir is not present
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The build procedure "make DEVELOPER=YesPlease" learned to enable a
bit more warning options depending on the compiler used to help
developers more. There also is "make DEVOPTS=tokens" knob
available now, for those who want to help fixing warnings we
usually ignore, for example.
* nd/warn-more-for-devs:
Makefile: add a DEVOPTS to get all of -Wextra
Makefile: add a DEVOPTS to suppress -Werror under DEVELOPER
Makefile: detect compiler and enable more warnings in DEVELOPER=1
connect.c: mark die_initial_contact() NORETURN
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Precompute and store information necessary for ancestry traversal
in a separate file to optimize graph walking.
* ds/commit-graph:
commit-graph: implement "--append" option
commit-graph: build graph from starting commits
commit-graph: read only from specific pack-indexes
commit: integrate commit graph with commit parsing
commit-graph: close under reachability
commit-graph: add core.commitGraph setting
commit-graph: implement git commit-graph read
commit-graph: implement git-commit-graph write
commit-graph: implement write_commit_graph()
commit-graph: create git-commit-graph builtin
graph: add commit graph design document
commit-graph: add format document
csum-file: refactor finalize_hashfile() method
csum-file: rename hashclose() to finalize_hashfile()
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A build-time option has been added to allow Git to be told to refer
to its associated files relative to the main binary, in the same
way that has been possible on Windows for quite some time, for
Linux, BSDs and Darwin.
* dj/runtime-prefix:
Makefile: quote $INSTLIBDIR when passing it to sed
Makefile: remove unused @@PERLLIBDIR@@ substitution variable
mingw/msvc: use the new-style RUNTIME_PREFIX helper
exec_cmd: provide a new-style RUNTIME_PREFIX helper for Windows
exec_cmd: RUNTIME_PREFIX on some POSIX systems
Makefile: add Perl runtime prefix support
Makefile: generate Perl header from template file
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Recent simplification of build procedure forgot a bit of tweak to
the build procedure of contrib/mw-to-git/
* ab/simplify-perl-makefile:
Makefile: mark perllibdir as a .PHONY target
perl: fix installing modules from contrib
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The beginning of the next-gen transfer protocol.
* bw/protocol-v2: (35 commits)
remote-curl: don't request v2 when pushing
remote-curl: implement stateless-connect command
http: eliminate "# service" line when using protocol v2
http: don't always add Git-Protocol header
http: allow providing extra headers for http requests
remote-curl: store the protocol version the server responded with
remote-curl: create copy of the service name
pkt-line: add packet_buf_write_len function
transport-helper: introduce stateless-connect
transport-helper: refactor process_connect_service
transport-helper: remove name parameter
connect: don't request v2 when pushing
connect: refactor git_connect to only get the protocol version once
fetch-pack: support shallow requests
fetch-pack: perform a fetch using v2
upload-pack: introduce fetch server command
push: pass ref prefixes when pushing
fetch: pass ref prefixes when fetching
ls-remote: pass ref prefixes when requesting a remote's refs
transport: convert transport_get_remote_refs to take a list of ref prefixes
...
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An reusable "memory pool" implementation has been extracted from
fast-import.c, which in turn has become the first user of the
mem-pool API.
* jm/mem-pool:
mem-pool: move reusable parts of memory pool into its own file
fast-import: introduce mem_pool type
fast-import: rename mem_pool type to mp_block
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Rename bunch of source files to more consistently use dashes
instead of underscores to connect words.
* sb/filenames-with-dashes:
replace_object.c: rename to use dash in file name
sha1_file.c: rename to use dash in file name
sha1_name.c: rename to use dash in file name
exec_cmd: rename to use dash in file name
unicode_width.h: rename to use dash in file name
write_or_die.c: rename to use dashes in file name
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Some codepaths, including the refs API, get and keep relative
paths, that go out of sync when the process does chdir(2). The
chdir-notify API is introduced to let these codepaths adjust these
cached paths to the new current directory.
* jk/relative-directory-fix:
refs: use chdir_notify to update cached relative paths
set_work_tree: use chdir_notify
add chdir-notify API
trace.c: export trace_setup_key
set_git_dir: die when setenv() fails
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The short and sweet PREFIX can be confused when used in many places.
Rename both usages to better describe their purpose. EXEC_CMD_PREFIX is
used in full to disambiguate it from the nearby GIT_EXEC_PATH.
The PREFIX in sideband.c, while nominally independant of the exec_cmd
PREFIX, does reside within libgit[1], so the definitions would clash
when taken together with a PREFIX given on the command line for use by
exec_cmd.c.
Noticed when compiling Git for Windows using MSVC/Visual Studio [1] which
reports the conflict beteeen the command line definition and the
definition in sideband.c within the libgit project.
[1] the libgit functions are brought into a single sub-project
within the Visual Studio construction script provided in contrib,
and hence uses a single command for both exec_cmd.c and sideband.c.
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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f6a0ad4b (Makefile: generate Perl header from template file,
2018-04-10) moved code for generating the 'use lib' lines at the top
of perl scripts from the $(SCRIPT_PERL_GEN) rule to a separate
GIT-PERL-HEADER rule.
This rule first populates INSTLIBDIR and then substitutes it into the
GIT-PERL-HEADER using sed:
INSTLIBDIR=... something ...
sed -e 's=@@INSTLIBDIR@@='$$INSTLIBDIR'=g' $< > $@
Because $INSTLIBDIR is not surrounded by double quotes, the shell
splits it at each space, causing errors if INSTLIBDIR contains an $IFS
character:
sed: 1: "s=@@INSTLIBDIR@@=/usr/l ...": unescaped newline inside substitute pattern
Add back the missing double-quotes to make it work again.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio noticed that this variable is not quoted correctly when it is
passed to sed. As a shell-quoted string, it should be inside
single-quotes like $(perllibdir_relative_SQ), not outside them like
$INSTLIBDIR.
In fact, this substitution variable is not used. Simplify by removing
it.
Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This target should be marked as .PHONY, just like other targets that
exist only for their side effects that do not create filesystem
entities with the same name.
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change DEVOPTS to understand a "extra-all" option. When the DEVELOPER
flag is enabled we turn on -Wextra, but manually switch some of the
warnings it turns on off.
This is because we have many existing occurrences of them in the code
base. This mode will stop the suppression, let the developer see and
decide whether to fix them.
This change is a slight alteration of Nguyễn Thái Ngọc Duy
EAGER_DEVELOPER mode patch[1]
1. "[PATCH v3 3/3] Makefile: add EAGER_DEVELOPER
mode" (<20180329150322.10722-4-pclouds@gmail.com>;
https://public-inbox.org/git/20180329150322.10722-4-pclouds@gmail.com/)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a DEVOPTS variable that'll be used to tweak the behavior of
DEVELOPER.
I've long wanted to use DEVELOPER=1 in my production builds, but on
some old systems I still get warnings, and thus the build would
fail. However if the build/tests fail for some other reason, it would
still be useful to scroll up and see what the relevant code is warning
about.
This change allows for that. Now setting DEVELOPER will set -Werror as
before, but if DEVOPTS=no-error is provided is set you'll get the same
warnings, but without -Werror.
Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The set of extra warnings we enable when DEVELOPER has to be
conservative because we can't assume any compiler version the
developer may use. Detect the compiler version so we know when it's
safe to enable -Wextra and maybe more.
These warning settings are mostly from my custom config.mak a long
time ago when I tried to enable as many warnings as possible that can
still build without showing warnings. Some of those warnings are
probably worth fixing instead of just suppressing in future.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This moves the reusable parts of the memory pool logic used by
fast-import.c into its own file for use by other components.
Signed-off-by: Jameson Miller <jamill@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is more consistent with the project style. The majority of
Git's source files use dashes in preference to underscores in their file
names.
Noticed while adding a header corresponding to this file.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
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This is more consistent with the project style. The majority of Git's
source files use dashes in preference to underscores in their file names.
Signed-off-by: Stefan Beller <sbeller@google.com>
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This is more consistent with the project style. The majority of Git's
source files use dashes in preference to underscores in their file names.
Signed-off-by: Stefan Beller <sbeller@google.com>
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This is more consistent with the project style. The majority of Git's
source files use dashes in preference to underscores in their file names.
Signed-off-by: Stefan Beller <sbeller@google.com>
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This is more consistent with the project style. The majority of Git's
source files use dashes in preference to underscores in their file names.
Signed-off-by: Stefan Beller <sbeller@google.com>
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The RUNTIME_PREFIX feature comes from Git for Windows, but it was
enhanced to allow support for other platforms. While changing the
original idea, the concept was also improved by not forcing argv[0] to
be adjusted.
Let's allow the same for Windows by implementing a helper just as for
the other platforms.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Enable Git to resolve its own binary location using a variety of
OS-specific and generic methods, including:
- procfs via "/proc/self/exe" (Linux)
- _NSGetExecutablePath (Darwin)
- KERN_PROC_PATHNAME sysctl on BSDs.
- argv0, if absolute (all, including Windows).
This is used to enable RUNTIME_PREFIX support for non-Windows systems,
notably Linux and Darwin. When configured with RUNTIME_PREFIX, Git will
do a best-effort resolution of its executable path and automatically use
this as its "exec_path" for relative helper and data lookups, unless
explicitly overridden.
Small incidental formatting cleanup of "exec_cmd.c".
Signed-off-by: Dan Jacques <dnj@google.com>
Thanks-to: Robbie Iannucci <iannucci@google.com>
Thanks-to: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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