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Support for libnettle as SHA256 implementation has been added.
* bc/nettle-sha256:
sha256: add support for Nettle
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For SHA-256, we currently have support for OpenSSL and libgcrypt because
these two libraries contain optimized implementations that can take
advantage of native processor instructions. However, OpenSSL is not
suitable for linking against for Linux distros due to licensing
incompatibilities with the GPLv2, and libgcrypt has been less favored by
cryptographers due to some security-related implementation issues,
which, while not affecting our use of hash algorithms, has affected its
reputation.
Let's add another option that's compatible with the GPLv2, which is
Nettle. This is an option which is generally better than libgcrypt
because on many distros GnuTLS (which uses Nettle) is used for HTTPS and
therefore as a practical matter it will be available on most systems.
As a result, prefer it over libgcrypt and our built-in implementation.
Nettle also has recently gained support for Intel's SHA-NI instructions,
which compare very favorably to other implementations, as well as
assembly implementations for when SHA-NI is not available.
A git gc on git.git sees a 12% performance improvement with Nettle over
our block SHA-256 implementation due to general assembly improvements.
With SHA-NI, the performance of raw SHA-256 on a 2 GiB file goes from
7.296 seconds with block SHA-256 to 1.523 seconds with Nettle.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add Coccinelle rules to detect the pattern of initializing and then
finalizing a structure without using it in between at all, which
happens after code restructuring and the compilers fail to
recognize as an unused variable.
* ab/cocci-unused:
cocci: generalize "unused" rule to cover more than "strbuf"
cocci: add and apply a rule to find "unused" strbufs
cocci: have "coccicheck{,-pending}" depend on "coccicheck-test"
cocci: add a "coccicheck-test" target and test *.cocci rules
Makefile & .gitignore: ignore & clean "git.res", not "*.res"
Makefile: remove mandatory "spatch" arguments from SPATCH_FLAGS
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Have the newly introduced "coccicheck-test" target run implicitly when
"coccicheck" itself is run. As with e.g. the "check-chainlint"
target (see [1]) it makes sense to run this unconditionally before we
run other "spatch" rules as a basic sanity check. See
1. 803394459d4 (t/Makefile: add machinery to check correctness of
chainlint.sed, 2018-07-11)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a "coccicheck-test" target to test our *.cocci rules, and as a
demonstration add tests for the rules added in 39ea59a2570 (remove
unnecessary NULL check before free(3), 2016-10-08) and
1b83d1251ed (coccinelle: add a rule to make "expression" code use
FREE_AND_NULL(), 2017-06-15).
I considered making use of the "spatch --test" option, and the choice
of a "tests" over a "t" directory is to make these tests compatible
with such a future change.
Unfortunately "spatch --test" doesn't return meaningful exit codes,
AFAICT you need to "grep" its output to see if the *.res is what you
expect. There's "--test-okfailed", but I didn't find a way to sensibly
integrate those (it relies on some in-between status files, but
doesn't help with the status codes).
Instead let's use a "--sp-file" pattern similar to the main
"coccicheck" rule, with the difference that we use and compare the
two *.res files with cmp(1).
The --very-quiet and --no-show-diff options ensure that we don't need
to pipe stdout and stderr somewhere. Unlike the "%.cocci.patch" rule
we're not using the diff.
The "cmp || git diff" is optimistically giving us better output on
failure, but even if we only have POSIX cmp and no system git
installed we'll still fail with the "cmp", just with an error message
that isn't as friendly. The "2>/dev/null" is in case we don't have a
"git" installed.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Adjust the overly broad .gitignore and "make clean" rule added in
ce39c2e04ce (Provide a Windows version resource for the git
executables., 2012-05-24).
For now this is merely a correctness fix, but needed because a
subsequent commit will want to check in *.res files elsewhere in the
tree, which we shouldn't have to "git add -f".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "--patch ." part of SPATCH_FLAGS added in f57d11728d1 (coccinelle:
put sane filenames into output patches, 2018-07-23) should have been
added unconditionally to the "spatch" invocation instead, using it
isn't optional.
Let's also move the other mandatory flag to come after
$(SPATCH_FLAGS), to ensure that our "--sp-file" overrides any provided
in the environment, both --sp-file <arg> and --patch <arg> are
last-option-wins as far as spatch(1) option parsing is concerned.
The environment variable override was initially added in
a9a884aea57 (coccicheck: use --all-includes by default,
2016-09-30). In practice there's probably nobody that's using
SPATCH_FLAGS to try to intentionally break our invocations, but since
we're changing this let's make it clear what (if anything) we expect
to be overridden by user-supplied flags.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach "make all" to build gitweb as well.
* ab/build-gitweb:
gitweb/Makefile: add a "NO_GITWEB" parameter
Makefile: build 'gitweb' in the default target
gitweb/Makefile: include in top-level Makefile
gitweb: remove "test" and "test-installed" targets
gitweb/Makefile: prepare to merge into top-level Makefile
gitweb/Makefile: clear up and de-duplicate the gitweb.{css,js} vars
gitweb/Makefile: add a $(GITWEB_ALL) variable
gitweb/Makefile: define all .PHONY prerequisites inline
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From looking at the {Free,Net,Dragonfly}BSD packages for git[1]
they've been monkeypatching "gitweb" out of the Makefile, let's be
nicer and provide a NO_GITWEB=Y for their use.
For the "all" target this allows for optionally restoring what's been
the status quo before the preceding commit, but now we'll also behave
correctly on the subsequent "make install".
As before our installation of gitweb can be suppressed with
NO_PERL. For backwards compatibility the NO_PERL=Y flag by itself
still doesn't change whether or not we build gitweb, unlike the new
NO_GITWEB=Y flag.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our Makefile's default target used to build 'gitweb', though
indirectly: the 'all' target depended on 'git-instaweb', which in turn
depended on 'gitweb'. Then e25c7cc146 (Makefile: drop dependency
between git-instaweb and gitweb, 2015-05-29) removed the latter
dependency, and for good reasons (quoting its commit message):
"1. git-instaweb has no build-time dependency on gitweb; it
is a run-time dependency
2. gitweb is a directory that we want to recursively make
in. As a result, its recipe is marked .PHONY, which
causes "make" to rebuild git-instaweb every time it is
run."
Since then a simple 'make' doesn't build 'gitweb'.
Luckily, installing 'gitweb' is not broken: although 'make install'
doesn't depend on the 'gitweb' target, it has a dependency on the
'install-gitweb' target, which does generate all the necessary files
for 'gitweb' and installs them. However, if someone runs 'make &&
sudo make install', then those files in the 'gitweb' directory will be
generated and owned by root, which is not nice.
List 'gitweb' as a direct dependency of the default target, so a plain
'make' will build it.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Include the gitweb/Makefile in the top-level Makefile rather than
calling it as a sub-Makefile. As noted in the thread starting at at
[1] (in particular [2]) we'll pay a high cost on NOOP runs of "make"
just to figure out that we have nothing to do for "make gitweb".
The "gitweb" script also isn't maintained out-of-tree, unlike
"gitk-git" or "git-gui", which both have their own "Makefile". Other
parts of it are already integrated into our main Makefiles, e.g. the
documentation is built by Documentation/Makefile since
07ea4df2780 (gitweb: Add gitweb(1) manpage for gitweb itself,
2011-10-16).
1. https://lore.kernel.org/git/20220525205651.825669-1-szeder.dev@gmail.com/
2. https://lore.kernel.org/git/220526.86k0a96sv2.gmgdl@evledraar.gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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More fsmonitor--daemon.
* jh/builtin-fsmonitor-part3: (30 commits)
t7527: improve implicit shutdown testing in fsmonitor--daemon
fsmonitor--daemon: allow --super-prefix argument
t7527: test Unicode NFC/NFD handling on MacOS
t/lib-unicode-nfc-nfd: helper prereqs for testing unicode nfc/nfd
t/helper/hexdump: add helper to print hexdump of stdin
fsmonitor: on macOS also emit NFC spelling for NFD pathname
t7527: test FSMonitor on case insensitive+preserving file system
fsmonitor: never set CE_FSMONITOR_VALID on submodules
t/perf/p7527: add perf test for builtin FSMonitor
t7527: FSMonitor tests for directory moves
fsmonitor: optimize processing of directory events
fsm-listen-darwin: shutdown daemon if worktree root is moved/renamed
fsm-health-win32: force shutdown daemon if worktree root moves
fsm-health-win32: add polling framework to monitor daemon health
fsmonitor--daemon: stub in health thread
fsmonitor--daemon: rename listener thread related variables
fsmonitor--daemon: prepare for adding health thread
fsmonitor--daemon: cd out of worktree root
fsm-listen-darwin: ignore FSEvents caused by xattr changes on macOS
unpack-trees: initialize fsmonitor_has_run_once in o->result
...
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Co-authored-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create another thread to watch over the daemon process and
automatically shut it down if necessary.
This commit creates the basic framework for a "health" thread
to monitor the daemon and/or the file system. Later commits
will add platform-specific code to do the actual work.
The "health" thread is intended to monitor conditions that
would be difficult to track inside the IPC thread pool and/or
the file system listener threads. For example, when there are
file system events outside of the watched worktree root or if
we want to have an idle-timeout auto-shutdown feature.
This commit creates the health thread itself, defines the thread-proc
and sets up the thread's event loop. It integrates this new thread
into the existing IPC and Listener thread models.
This commit defines the API to the platform-specific code where all of
the monitoring will actually happen.
The platform-specific code for MacOS is just stubs. Meaning that the
health thread will immediately exit on MacOS, but that is OK and
expected. Future work can define MacOS-specific monitoring.
The platform-specific code for Windows sets up enough of the
WaitForMultipleObjects() machinery to watch for system and/or custom
events. Currently, the set of wait handles only includes our custom
shutdown event (sent from our other theads). Later commits in this
series will extend the set of wait handles to monitor other
conditions.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Extend generic incompatibility checkout with platform-specific
mechanism. Stub in Win32 version.
In the existing fsmonitor-settings code we have a way to mark
types of repos as incompatible with fsmonitor (whether via the
hook and IPC APIs). For example, we do this for bare repos,
since there are no files to watch.
Extend this exclusion mechanism for platform-specific reasons.
This commit just creates the framework and adds a stub for Win32.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A mechanism to pack unreachable objects into a "cruft pack",
instead of ejecting them into loose form to be reclaimed later, has
been introduced.
* tb/cruft-packs:
sha1-file.c: don't freshen cruft packs
builtin/gc.c: conditionally avoid pruning objects via loose
builtin/repack.c: add cruft packs to MIDX during geometric repack
builtin/repack.c: use named flags for existing_packs
builtin/repack.c: allow configuring cruft pack generation
builtin/repack.c: support generating a cruft pack
builtin/pack-objects.c: --cruft with expiration
reachable: report precise timestamps from objects in cruft packs
reachable: add options to add_unseen_recent_objects_to_traversal
builtin/pack-objects.c: --cruft without expiration
builtin/pack-objects.c: return from create_object_entry()
t/helper: add 'pack-mtimes' test-tool
pack-mtimes: support writing pack .mtimes files
chunk-format.h: extract oid_version()
pack-write: pass 'struct packing_data' to 'stage_tmp_packfiles'
pack-mtimes: support reading .mtimes files
Documentation/technical: add cruft-packs.txt
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In the next patch, we will implement and test support for writing a
cruft pack via a special mode of `git pack-objects`. To make sure that
objects are written with the correct timestamps, and a new test-tool
that can dump the object names and corresponding timestamps from a given
`.mtimes` file.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To store the individual mtimes of objects in a cruft pack, introduce a
new `.mtimes` format that can optionally accompany a single pack in the
repository.
The format is defined in Documentation/technical/pack-format.txt, and
stores a 4-byte network order timestamp for each object in name (index)
order.
This patch prepares for cruft packs by defining the `.mtimes` format,
and introducing a basic API that callers can use to read out individual
mtimes.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A workflow change for translators are being proposed.
* jx/l10n-workflow-change:
l10n: Document the new l10n workflow
Makefile: add "po-init" rule to initialize po/XX.po
Makefile: add "po-update" rule to update po/XX.po
po/git.pot: don't check in result of "make pot"
po/git.pot: this is now a generated file
Makefile: remove duplicate and unwanted files in FOUND_SOURCE_FILES
i18n CI: stop allowing non-ASCII source messages in po/git.pot
Makefile: have "make pot" not "reset --hard"
Makefile: generate "po/git.pot" from stable LOCALIZED_C
Makefile: sort source files before feeding to xgettext
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The core translation is the minimum set of work that must be done for a
new language translation.
There are over 5000 messages in the template message file "po/git.pot"
that need to be translated. It is not a piece of cake for such a huge
workload. So we used to define a small set of messages called "core
translation" that a new l10n contributor must complete before sending
pull request to the l10n coordinator.
By pulling in some parts of the git-po-helper[^1] logic, we add a new
rule to create this core translation message "po/git-core.pot":
make po/git-core.pot
To help new l10n contributors to initialized their "po/XX.pot" from
"po/git-core.pot", we also add new rules "po-init":
make po-init PO_FILE=po/XX.po
[^1]: https://github.com/git-l10n/git-po-helper/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since there is no longer a "po/git.pot" file in tree, a l10n team leader
has to run several commands to update their "po/XX.po" file:
$ make pot
$ msgmerge --add-location --backup=off -U po/XX.po po/git.pot
To make this process easier, add a new rule so that l10n team leaders
can update their "po/XX.po" with one command. E.g.:
$ make po-update PO_FILE=po/zh_CN.po
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the "po/git.pot" file from being tracked, which started with
dce37b66fb0 (l10n: initial git.pot for 1.7.10 upcoming release,
2012-02-13).
The reason the po/git.pot started being checked in was because the
po/*.po files were changed a schema where we'd generate them from a
known-good snapshot of po/git.pot, instead of each translator running
"make pot" themselves.
This makes sense, but we don't need to carry this file in-tree just to
achieve that aim, and doing so has resulted in a significant amount of
"diff churn" since this method of doing it was introduced:
$ git log -p --oneline -- po/git.pot|wc -l
553743
We can instead let l10n contributors to generate "po/git.pot" in runtime
to update their own "po/XX.po", and the l10n coordinator can check
pull requests using CI pipeline.
This reverts to the schema introduced initially in cd5513a7168 (i18n:
Makefile: "pot" target to extract messages marked for translation,
2011-02-22).
The actual "git rm" of po/git.pot was in preceding commit to make this
change easier to review, and to preempt the mailing list from blocking
it due to it being too large.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We get source files saved in "$(FOUND_SOURCE_FILES)" by running the
command "git ls-files" or the command "find". We tried to have the
both commands return the same list of files, but apparently the "find"
command will return more files, such as the generated headers. We can
filter out these generated headers to get closer results.
In addition to this, "$(FOUND_SOURCE_FILES)" may contain duplicate
files. E.g. "git-ls-files" may have duplicate entries for the same file
in different staging areas if there are unresolved conflicts in the
working tree. For this case, we can reduce duplicate entries by passing
the option "--deduplicate" to git-ls-files.
Junio reported that when running "make" in a working tree with
unresolved conflicts, "make" may report warnings like below:
Makefile:xxxx: target '.build/pot/po/FOO.c.po' given more than once
in the same rule
The duplicate targets are introduced by the following pattern rule we
added in the preceding commit for incremental build of "po/git.pot".
$(LOCALIZED_C_GEN_PO): .build/pot/po/%.po: %
Although we have resolved this issue by sorting to create a unique
$(LOCALIZED_C), other targets may benefit from this. Such as: tags,
cscope.out, etc.
Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the preceding commit we moved away from using xgettext(1) to both
generate the po/git.pot, and to merge the incrementally generated
po/git.pot+ file as we sourced translations from C, shell and Perl.
Doing it this way, which dates back to my initial
implementation[1][2][3] was conflating two things: With xgettext(1)
the --from-code both controls what encoding is specified in the
po/git.pot's header, and what encoding we allow in source messages.
We don't ever want to allow non-ASCII in *source messages*, and doing
so has hid e.g. a buggy message introduced in
a6226fd772b (submodule--helper: convert the bulk of cmd_add() to C,
2021-08-10) from us, we'd warn about it before, but only when running
"make pot", but the operation would still succeed. Now we'll error out
on it when running "make pot".
Since the preceding Makefile changes made this easy: let's add a "make
check-pot" target with the same prerequisites as the "po/git.pot"
target, but without changing the file "po/git.pot". Running it as part
of the "static-analysis" CI target will ensure that we catch any such
issues in the future. E.g.:
$ make check-pot
XGETTEXT .build/pot/po/builtin/submodule--helper.c.po
xgettext: Non-ASCII string at builtin/submodule--helper.c:3381.
Please specify the source encoding through --from-code.
make: *** [.build/pot/po/builtin/submodule--helper.c.po] Error 1
1. cd5513a7168 (i18n: Makefile: "pot" target to extract messages
marked for translation, 2011-02-22)
2. adc3b2b2767 (Makefile: add xgettext target for *.sh files,
2011-05-14)
3. 5e9637c6297 (i18n: add infrastructure for translating Git with
gettext, 2011-11-18)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before commit fc0fd5b23b (Makefile: help gettext tools to cope with our
custom PRItime format, 2017-07-20), we'd consider source files as-is
with gettext, but because we need to understand PRItime in the same way
that gettext itself understands PRIuMAX, we'd first check if we had a
clean checkout, then munge all of the processed files in-place with
"sed", generate "po/git.pot", and then finally "reset --hard" to undo
our changes.
By generating "pot" snippets in ".build/pot/po" for each source file
and rewriting certain source files with PRItime macros to temporary
files in ".build/pot/po", we can avoid running "make pot" by altering
files in place and doing a "reset --hard" afterwards.
This speed of "make pot" is slower than before on an initial run,
because we run "xgettext" many times (once per source file), but it
can be boosted by parallelization. It is *much* faster for incremental
runs, and will allow us to implement related targets in subsequent
commits.
When the "pot" target was originally added in cd5513a7168 (i18n:
Makefile: "pot" target to extract messages marked for translation,
2011-02-22) it behaved like a "normal" target. I.e. we'd skip the
re-generation of the po/git.pot if nothing had to be done.
Then after po/git.pot was checked in in dce37b66fb0 (l10n: initial
git.pot for 1.7.10 upcoming release, 2012-02-13) the target was broken
until 1f31963e921 (i18n: treat "make pot" as an explicitly-invoked
target, 2014-08-22) when it was made to depend on "FORCE". I.e. the
Makefile's dependency resolution inherently can't handle incremental
building when the target file may be updated by git (or something else
external to "make"). But this case no longer applies, so FORCE is no
longer needed.
That out of the way, the main logic change here is getting rid of the
"reset --hard":
We'll generate intermediate ".build/pot/po/%.po" files from "%", which
is handy to see at a glance what strings (if any) in a given file are
marked for translation:
$ make .build/pot/po/pretty.c.po
[...]
$ cat .build/pot/po/pretty.c.po
#: pretty.c:1051
msgid "unable to parse --pretty format"
msgstr ""
$
For these C source files which contain the PRItime macros, we will
create temporary munged "*.c" files in a tree in ".build/pot/po"
corresponding to our source tree, and have "xgettext" consider those.
The rule needs to be careful to "(cd .build/pot/po && ...)", because
otherwise the comments in the po/git.pot file wouldn't refer to the
correct source locations (they'd be prefixed with ".build/pot/po").
These temporary munged "*.c” files will be removed immediately after
the corresponding po files are generated, because some development tools
cannot ignore the duplicate source files in the ".build" directory
according to the ".gitignore" file, and that may cause trouble.
The output of the generated po/git.pot file is changed in one minor
way: Because we're using msgcat(1) instead of xgettext(1) to
concatenate the output we'll now disambiguate where "TRANSLATORS"
comments come from, in cases where a message is the same in N files,
and either only one has a "TRANSLATORS" comment, or they're
different. E.g. for the "Your edited hunk[...]" message we'll now
apply this change (comment content elided):
+#. #-#-#-#-# add-patch.c.po #-#-#-#-#
#. TRANSLATORS: do not translate [y/n]
[...]
+#. #-#-#-#-# git-add--interactive.perl.po #-#-#-#-#
#. TRANSLATORS: do not translate [y/n]
[...]
#: add-patch.c:1253 git-add--interactive.perl:1244
msgid ""
"Your edited hunk does not apply. Edit again (saying \"no\" discards!) [y/n]? "
msgstr ""
There are six such changes, and they all make the context more
understandable, as msgcat(1) is better at handling these edge cases
than xgettext(1)'s previously used "--join-existing" flag.
But filenames in the above disambiguation lines of extracted-comments
have an extra ".po" extension compared to the filenames at the file
locations. While we could rename the intermediate ".build/pot/po/%.po"
files without the ".po" extension to use more intuitive filenames in
the disambiguation lines of extracted-comments, but that will confuse
developer tools with lots of invalid C or other source files in
".build/pot/po" directory.
The addition of "--omit-header" option for xgettext makes the "pot"
snippets in ".build/pot/po/*.po" smaller. But as we'll see in a
subsequent commit this header behavior has been hiding an
encoding-related bug from us, so let's carry it forward instead of
re-generating it with xgettext(1).
The "po/git.pot" file should have a header entry, because a proper
header entry will increase the speed of creating a new po file using
msginit and set a proper "POT-Creation-Date:" field in the header
entry of a "po/XX.po" file. We use xgettext to generate a separate
header file at ".build/pot/git.header" from "/dev/null", and use this
header to assemble "po/git.pot".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Different users may generate a different message template file
"po/git.pot". This is because the POT file is generated from
"$(LOCALIZED_C)", which is supposed to list all the sources that we
extract the strings to be translated from. But "$(LOCALIZED_C)"
includes "$(C_OBJ)", which only lists the source files used in the
current build for a specific platform and specific compiler
conditions.
Instead of using "$(C_OBJ)", we use "$(FOUND_C_SOURCES)", which lists
all source files we keep track of (or ship in a tarball extract), to
form a stable "LOCALIZED_C". We also add "$(SCALAR_SOURCES)", which
is part of "$(C_OBJ)" but not included in "$(FOUND_C_SOURCES)".
With this update, the newly generated "po/git.pot" will have 30 new
entries coming from the following C source files:
* compat/fsmonitor/fsm-listen-win32.c
* compat/mingw.c
* compat/regex/regcomp.c
* compat/simple-ipc/ipc-win32.c
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We will feed xgettext with more C source files and in different order
in subsequent commit. To generate a stable "po/git.pot" regardless of
the number and order of input source files, we sort the c, perl, and
shell source files in groups before feeding them to xgettext.
Ævar suggested that we should not pass the option "--sort-by-file" to
xgettext to sort the translatable strings, as it will mix the three
groups of source files (c, perl and shell) in the file "po/git.pot",
and change the order of translatable strings in the same line of a file.
With this update, the newly generated "po/git.pot" will have the same
entries while in a different order.
With the help of a custom diff driver as shown below,
git config --global diff.gettext-fmt.textconv \
"msgcat --no-location --sort-by-file"
and appending a new entry "*.pot diff=gettext-fmt" to git attributes,
we can see that there are no substantial changes in "po/git.pot".
We won't checkin the newly generated "po/git.pot", because we will
remove it from tree in a later commit.
Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"make coverage-report" without first running "make coverage" did
not produce any meaningful result, which has been corrected.
* ep/coverage-report-wants-test-to-have-run:
Makefile: add a prerequisite to the coverage-report target
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Directly invoking make coverage-report as a target results in an error because
its prerequisites are missing,
This patch adds the compile-test prerequisite, which is run only once each time
the compile-report target is invoked. In practice, the developer may decide to
review the coverage-report results without necessarily rerunning for this
coverage-test, if it has already been run.
Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Avoid problems from interaction between malloc_check and address
sanitizer.
* pw/test-malloc-with-sanitize-address:
tests: make SANITIZE=address imply TEST_NO_MALLOC_CHECK
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As the address sanitizer checks for a superset of the issues detected
by setting MALLOC_CHECK_ (which tries to detect things like double
frees and off-by-one errors) there is no need to set the latter when
compiling with -fsanitize=address.
This fixes a regression introduced by 131b94a10a ("test-lib.sh: Use
GLIBC_TUNABLES instead of MALLOC_CHECK_ on glibc >= 2.34", 2022-03-04)
which causes all the tests to fail with the message
ASan runtime does not come first in initial library list;
you should either link runtime to your application or
manually preload it with LD_PRELOAD.
when git is compiled with SANITIZE=address on systems with glibc >=
2.34. I have tested SANITIZE=leak and SANITIZE=undefined and they do
not suffer from this regression so the fix in this patch should be
sufficient.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build fix.
* bc/csprng-mktemps:
git-compat-util: really support openssl as a source of entropy
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05cd988dce5 (wrapper: add a helper to generate numbers from a CSPRNG,
2022-01-17), configure openssl as the source for entropy in NON-STOP
but doesn't add the needed header or link options.
Since the only system that is configured to use openssl as a source
of entropy is NON-STOP, add the header unconditionally, and -lcrypto
to the list of external libraries.
An additional change is required to make sure a NO_OPENSSL=1 build
will be able to work as well (tested on Linux with a modified value
of CSPRNG_METHOD = openssl), and the more complex logic that allows
for compatibility with APPLE_COMMON_CRYPTO or allowing for simpler
ways to link (without libssl) has been punted for now.
Reported-by: Randall Becker <rsbecker@nexbridge.com>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Built-in fsmonitor (part 2).
* jh/builtin-fsmonitor-part2: (30 commits)
t7527: test status with untracked-cache and fsmonitor--daemon
fsmonitor: force update index after large responses
fsmonitor--daemon: use a cookie file to sync with file system
fsmonitor--daemon: periodically truncate list of modified files
t/perf/p7519: add fsmonitor--daemon test cases
t/perf/p7519: speed up test on Windows
t/perf/p7519: fix coding style
t/helper/test-chmtime: skip directories on Windows
t/perf: avoid copying builtin fsmonitor files into test repo
t7527: create test for fsmonitor--daemon
t/helper/fsmonitor-client: create IPC client to talk to FSMonitor Daemon
help: include fsmonitor--daemon feature flag in version info
fsmonitor--daemon: implement handle_client callback
compat/fsmonitor/fsm-listen-darwin: implement FSEvent listener on MacOS
compat/fsmonitor/fsm-listen-darwin: add MacOS header files for FSEvent
compat/fsmonitor/fsm-listen-win32: implement FSMonitor backend on Windows
fsmonitor--daemon: create token-based changed path cache
fsmonitor--daemon: define token-ids
fsmonitor--daemon: add pathname classification
fsmonitor--daemon: implement 'start' command
...
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Create an IPC client to send query and flush commands to the daemon.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Stub in empty filesystem listener backend for fsmonitor--daemon on Windows.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create a built-in file system monitoring daemon that can be used by
the existing `fsmonitor` feature (protocol API and index extension)
to improve the performance of various Git commands, such as `status`.
The `fsmonitor--daemon` feature builds upon the `Simple IPC` API and
provides an alternative to hook access to existing fsmonitors such
as `watchman`.
This commit merely adds the new command without any functionality.
Co-authored-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move fsmonitor config settings to a new and opaque
`struct fsmonitor_settings` structure. Add a lazily-loaded pointer
to this into `struct repo_settings`
Create an `enum fsmonitor_mode` type in `struct fsmonitor_settings` to
represent the state of fsmonitor. This lets us represent which, if
any, fsmonitor provider (hook or IPC) is enabled.
Create `fsm_settings__get_*()` getters to lazily look up fsmonitor-
related config settings.
Get rid of the `core_fsmonitor` global variable. Move the code to
lookup the existing `core.fsmonitor` config value into the fsmonitor
settings.
Create a hook pathname variable in `struct fsmonitor-settings` and
only set it when in hook mode.
Extend the definition of `core.fsmonitor` to be either a boolean
or a hook pathname. When true, the builtin FSMonitor is used.
When false or unset, no FSMonitor (neither builtin nor hook) is
used.
The existing `core_fsmonitor` global variable was used to store the
pathname to the fsmonitor hook *and* it was used as a boolean to see
if fsmonitor was enabled. This dual usage and global visibility leads
to confusion when we add the IPC-based provider. So lets hide the
details in fsmonitor-settings.c and let it decide which provider to
use in the case of multiple settings. This avoids cluttering up
repo-settings.c with these private details.
A future commit in builtin-fsmonitor series will add the ability to
disqualify worktrees for various reasons, such as being mounted from a
remote volume, where fsmonitor should not be started. Having the
config settings hidden in fsmonitor-settings.c allows such worktree
restrictions to override the config values used.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create fsmonitor_ipc__*() client routines to spawn the built-in file
system monitor daemon and send it an IPC request using the `Simple
IPC` API.
Stub in empty fsmonitor_ipc__*() functions for unsupported platforms.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Replace core.fsyncObjectFiles with two new configuration variables,
core.fsync and core.fsyncMethod.
* ns/core-fsyncmethod:
core.fsync: documentation and user-friendly aggregate options
core.fsync: new option to harden the index
core.fsync: add configuration parsing
core.fsync: introduce granular fsync control infrastructure
core.fsyncmethod: add writeout-only mode
wrapper: make inclusion of Windows csprng header tightly scoped
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This commit introduces the `core.fsyncMethod` configuration
knob, which can currently be set to `fsync` or `writeout-only`.
The new writeout-only mode attempts to tell the operating system to
flush its in-memory page cache to the storage hardware without issuing a
CACHE_FLUSH command to the storage controller.
Writeout-only fsync is significantly faster than a vanilla fsync on
common hardware, since data is written to a disk-side cache rather than
all the way to a durable medium. Later changes in this patch series will
take advantage of this primitive to implement batching of hardware
flushes.
When git_fsync is called with FSYNC_WRITEOUT_ONLY, it may fail and the
caller is expected to do an ordinary fsync as needed.
On Apple platforms, the fsync system call does not issue a CACHE_FLUSH
directive to the storage controller. This change updates fsync to do
fcntl(F_FULLFSYNC) to make fsync actually durable. We maintain parity
with existing behavior on Apple platforms by setting the default value
of the new core.fsyncMethod option.
Signed-off-by: Neeraj Singh <neerajsi@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git stash drop" is reimplemented as an internal call to
reflog_delete() function, instead of invoking "git reflog delete"
via run_command() API.
* jc/stash-drop:
stash: call reflog_delete() in reflog.c
reflog: libify delete reflog function and helpers
stash: add tests to ensure reflog --rewrite --updatref behavior
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Currently stash shells out to reflog in order to delete refs. In an
effort to reduce how much we shell out to a subprocess, libify the
functionality that stash needs into reflog.c.
Add a reflog_delete function that is pretty much the logic in the while
loop in builtin/reflog.c cmd_reflog_delete(). This is a function that
builtin/reflog.c and builtin/stash.c can both call.
Also move functions needed by reflog_delete and export them.
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a template to do the "mkdir -p" of $(@D) (the parent dir of $@)
for us, and use it for the "make lint-docs" targets I added in
8650c6298c1 (doc lint: make "lint-docs" non-.PHONY, 2021-10-15).
As seen in 4c64fb5aad9 (Documentation/Makefile: fix lint-docs mkdir
dependency, 2021-10-26) maintaining these manual lists of parent
directory dependencies is fragile, in addition to being obviously
verbose.
I used this pattern at the time because I couldn't find another method
than "order-only" prerequisites to avoid doing a "mkdir -p $(@D)" for
every file being created, which as noted in [1] would be significantly
slower.
But as it turns out we can use this neat trick of only doing a "mkdir
-p" if the $(wildcard) macro tells us the path doesn't exist. A re-run
of a performance test similar to that noted downthread of [1] in [2]
shows that this is faster, in addition to being less verbose and more
reliable (this uses my "git-hyperfine" thin wrapper for "hyperfine"[3]):
$ git -c hyperfine.hook.setup= hyperfine -L rev HEAD~1,HEAD~0 -s 'make -C Documentation lint-docs' -p 'rm -rf Documentation/.build' 'make -C Documentation -j1 lint-docs'
Benchmark 1: make -C Documentation -j1 lint-docs' in 'HEAD~1
Time (mean ± σ): 2.914 s ± 0.062 s [User: 2.449 s, System: 0.489 s]
Range (min … max): 2.834 s … 3.020 s 10 runs
Benchmark 2: make -C Documentation -j1 lint-docs' in 'HEAD~0
Time (mean ± σ): 2.315 s ± 0.062 s [User: 1.950 s, System: 0.386 s]
Range (min … max): 2.229 s … 2.397 s 10 runs
Summary
'make -C Documentation -j1 lint-docs' in 'HEAD~0' ran
1.26 ± 0.04 times faster than 'make -C Documentation -j1 lint-docs' in 'HEAD~1'
So let's use that pattern both for the "lint-docs" target, and a few
miscellaneous other targets.
This method of creating parent directories is explicitly racy in that
we don't know if we're going to say always create a "foo" followed by
a "foo/bar" under parallelism, or skip the "foo" because we created
"foo/bar" first. In this case it doesn't matter for anything except
that we aren't guaranteed to get the same number of rules firing when
running make in parallel.
1. https://lore.kernel.org/git/211028.861r45y3pt.gmgdl@evledraar.gmail.com/
2. https://lore.kernel.org/git/211028.86o879vvtp.gmgdl@evledraar.gmail.com/
3. https://gitlab.com/avar/git-hyperfine/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The $(QUIET) variables we define are largely duplicated between our
various Makefiles, let's define them in the new "shared.mak" instead.
Since we're not using the environment to pass these around we don't
need to export the "QUIET_GEN" and "QUIET_BUILT_IN" variables
anymore. The "QUIET_GEN" variable is used in "git-gui/Makefile" and
"gitweb/Makefile", but they've got their own definition for those. The
"QUIET_BUILT_IN" variable is only used in the top-level "Makefile". We
still need to export the "V" variable.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move these variables over to the shared.mak, we'll make use of them in
a subsequent commit.
Note that there's reason for these to be "simply expanded variables",
i.e. to use ":=" assignments instead of lazily expanded "="
assignments. We could use "=", but let's leave this as-is for now for
ease of review.
See 425ca6710b2 (Makefile: allow combining UBSan with other
sanitizers, 2017-07-15) for the commit that introduced these.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This was added in 30248886ce8 (Makefile: disable default implicit
rules, 2010-01-26), let's move it to the top of "shared.mak" so it'll
apply to all our Makefiles.
This doesn't benefit the main Makefile at all, since it already had
the rule, but since we're including shared.mak in other Makefiles
starts to benefit them. E.g. running the 'man" target is now faster:
$ git -c hyperfine.hook.setup= hyperfine -L rev HEAD~1,HEAD~0 -s 'make -C Documentation man' 'make -C Documentation -j1 man'
Benchmark 1: make -C Documentation -j1 man' in 'HEAD~1
Time (mean ± σ): 121.7 ms ± 8.8 ms [User: 105.8 ms, System: 18.6 ms]
Range (min … max): 112.8 ms … 148.4 ms 26 runs
Benchmark 2: make -C Documentation -j1 man' in 'HEAD~0
Time (mean ± σ): 97.5 ms ± 8.0 ms [User: 80.1 ms, System: 20.1 ms]
Range (min … max): 89.8 ms … 111.8 ms 32 runs
Summary
'make -C Documentation -j1 man' in 'HEAD~0' ran
1.25 ± 0.14 times faster than 'make -C Documentation -j1 man' in 'HEAD~1'
The reason for that can be seen when comparing that run with
"--debug=a". Without this change making a target like "git-status.1"
will cause "make" to consider not only "git-status.txt", but
"git-status.txt.o", as well as numerous other implicit suffixes such
as ".c", ".cc", ".cpp" etc. See [1] for a more detailed before/after
example.
So this is causing us to omit a bunch of work we didn't need to
do. For making "git-status.1" the "--debug=a" output is reduced from
~140k lines to ~6k.
1. https://lore.kernel.org/git/220222.86bkyz875k.gmgdl@evledraar.gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Combine the definitions of $(FIND_SOURCE_FILES) and $(LIB_H) to speed
up the Makefile, as these are the two main expensive $(shell) commands
that we execute unconditionally.
When see what was in $(FOUND_SOURCE_FILES) that wasn't in $(LIB_H) via
the ad-hoc test of:
$(error $(filter-out $(LIB_H),$(filter %.h,$(ALL_SOURCE_FILES))))
$(error $(filter-out $(ALL_SOURCE_FILES),$(filter %.h,$(LIB_H))))
We'll get, respectively:
Makefile:850: *** t/helper/test-tool.h. Stop.
Makefile:850: *** . Stop.
I.e. we only had a discrepancy when it came to
t/helper/test-tool.h. In terms of correctness this was broken before,
but now works:
$ make t/helper/test-tool.hco
HDR t/helper/test-tool.h
This speeds things up a lot:
$ git -c hyperfine.hook.setup= hyperfine -L rev HEAD~1,HEAD~0 -s 'make NO_TCLTK=Y' 'make -j1 NO_TCLTK=Y' --warmup 10 -M 10
Benchmark 1: make -j1 NO_TCLTK=Y' in 'HEAD~1
Time (mean ± σ): 159.9 ms ± 6.8 ms [User: 137.2 ms, System: 28.0 ms]
Range (min … max): 154.6 ms … 175.9 ms 10 runs
Benchmark 2: make -j1 NO_TCLTK=Y' in 'HEAD~0
Time (mean ± σ): 100.0 ms ± 1.3 ms [User: 84.2 ms, System: 20.2 ms]
Range (min … max): 98.8 ms … 102.8 ms 10 runs
Summary
'make -j1 NO_TCLTK=Y' in 'HEAD~0' ran
1.60 ± 0.07 times faster than 'make -j1 NO_TCLTK=Y' in 'HEAD~1'
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have various behavior that's shared across our Makefiles, or that
really should be (e.g. via defined templates). Let's create a
top-level "shared.mak" to house those sorts of things, and start by
adding the ".DELETE_ON_ERROR" flag to it.
See my own 7b76d6bf221 (Makefile: add and use the ".DELETE_ON_ERROR"
flag, 2021-06-29) and db10fc6c09f (doc: simplify Makefile using
.DELETE_ON_ERROR, 2021-05-21) for the addition and use of the
".DELETE_ON_ERROR" flag.
I.e. this changes the behavior of existing rules in the altered
Makefiles (except "Makefile" & "Documentation/Makefile"). I'm
confident that this is safe having read the relevant rules in those
Makfiles, and as the GNU make manual notes that it isn't the default
behavior is out of an abundance of backwards compatibility
caution. From edition 0.75 of its manual, covering GNU make 4.3:
[Enabling '.DELETE_ON_ERROR' is] almost always what you want
'make' to do, but it is not historical practice; so for
compatibility, you must explicitly request it.
This doesn't introduce a bug by e.g. having this
".DELETE_ON_ERROR" flag only apply to this new shared.mak, Makefiles
have no such scoping semantics.
It does increase the danger that any Makefile without an explicit "The
default target of this Makefile is..." snippet to define the default
target as "all" could have its default rule changed if our new
shared.mak ever defines a "real" rule. In subsequent commits we'll be
careful not to do that, and such breakage would be obvious e.g. in the
case of "make -C t".
We might want to make that less fragile still (e.g. by using
".DEFAULT_GOAL" as noted in the preceding commit), but for now let's
simply include "shared.mak" without adding that boilerplate to all the
Makefiles that don't have it already. Most of those are already
exposed to that potential caveat e.g. due to including "config.mak*".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The build procedure has been taught to notice older version of zlib
and enable our replacement uncompress2() automatically.
* ab/auto-detect-zlib-compress2:
compat: auto-detect if zlib has uncompress2()
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