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hook
To allow further flexibility in the Git hook, the SMTP header
information of the email which git-send-email intends to send, is now
passed as the 2nd argument to the sendemail-validate hook.
As an example, this can be useful for acting upon keywords in the
subject or specific email addresses.
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: Junio C Hamano <gitster@pobox.com>
Cc: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Michael Strawbridge <michael.strawbridge@amd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Split process_file and send_message into easier to use functions.
Making SMTP header information widely available.
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: Junio C Hamano <gitster@pobox.com>
Cc: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Michael Strawbridge <michael.strawbridge@amd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Clean-up of the code path that deals with merge strategy option
handling in "git rebase".
* pw/rebase-cleanup-merge-strategy-option-handling:
rebase: remove a couple of redundant strategy tests
rebase -m: fix serialization of strategy options
rebase -m: cleanup --strategy-option handling
sequencer: use struct strvec to store merge strategy options
rebase: stop reading and writing unnecessary strategy state
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Remove a test in t3402 that has been redundant ever since 80ff47957b
(rebase: remember strategy and strategy options, 2011-02-06). That
commit added a new test, the first part of which (as noted in the old
commit message) duplicated an existing test.
Also remove a test t3418 that has been redundant since the merge backend
was removed in 68aa495b59 (rebase: implement --merge via the interactive
machinery, 2018-12-11), since it now tests the same code paths as the
preceding test.
Helped-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To store the strategy options rebase prepends " --" to each one and
writes them to a file. To load them it reads the file and passes the
contents to split_cmdline(). This roughly mimics the behavior of the
scripted rebase but has a couple of limitations, (1) options containing
whitespace are not properly preserved (this is true of the scripted
rebase as well) and (2) options containing '"' or '\' are incorrectly
parsed and may cause the parser to return an error.
Fix these limitations by quoting each option when they are stored so
that they can be parsed correctly. Now that "--preserve-merges" no
longer exist this change also stops prepending "--" to the options when
they are stored as that was an artifact of the scripted rebase.
These changes are backwards compatible so the files written by an older
version of git can still be read. They are also forwards compatible,
the file can still be parsed by recent versions of git as they treat the
"--" prefix as optional.
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When handling "--strategy-option" rebase collects the commands into a
struct string_list, then concatenates them into a string, prepending "--"
to each one before splitting the string and removing the "--" prefix.
This is an artifact of the scripted rebase and the need to support
"rebase --preserve-merges". Now that "--preserve-merges" no-longer
exists we can cleanup the way the argument is handled.
The tests for a bad strategy option are adjusted now that
parse_strategy_opts() is no-longer called when starting a rebase. The
fact that it only errors out when running "git rebase --continue" is a
mixed blessing but the next commit will fix the root cause of the
parsing problem so lets not worry about that here.
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The sequencer stores the merge strategy options in an array of strings
which allocated with ALLOC_GROW(). Using "struct strvec" avoids manually
managing the memory of that array and simplifies the code.
Aside from memory allocation the changes to the sequencer are largely
mechanical, changing xopts_nr to xopts.nr and xopts[i] to xopts.v[i]. A
new option parsing macro OPT_STRVEC() is also added to collect the
strategy options. Hopefully this can be used to simplify the code in
builtin/merge.c in the future.
Note that there is a change of behavior to "git cherry-pick" and "git
revert" as passing “--no-strategy-option” will now clear any previous
strategy options whereas before this change it did nothing.
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The state files for "--strategy" and "--strategy-option" are written and
read twice, once by builtin/rebase.c and then by sequencer.c. This is an
artifact of the scripted rebase and the need to support "rebase
--preserve-merges". Now that "--preserve-merges" no-longer exists we
only need to read and write these files in sequencer.c. This enables us
to remove a call to free() in read_strategy_opts() that was added by
f1f4ebf432 (sequencer.c: fix "opts->strategy" leak in
read_strategy_opts(), 2022-11-08) as this commit fixes the root cause of
that leak.
There is further scope for removing duplication in the reading and
writing of state files between builtin/rebase.c and sequencer.c but that
is left for a follow up series.
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git branch -d origin/master" would say "no such branch", but it is
likely a missed "-r" if refs/remotes/origin/master exists. The
command has been taught to give such a hint in its error message.
* cm/branch-delete-error-message-update:
branch: improve error log on branch not found by checking remotes refs
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New git users may want to locally delete remote-tracking branches but
don't really understand how they are distinguished from branches by git.
Then one may naively try:
`git branch -d foo/bar` and get a correct error `branch foo/bar not
found` but hard to understand for a newbie, this patch aims to guide one
in such case.
when failing to delete a branch with `git branch -d <branch>` because
of branch not found, try to find a **remote refs** matching `<branch>`
and if so, add an hint:
`Did you forget --remote?` to the error message
Signed-off-by: Clement Mabileau <mabileau.clement@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc toolchain update to remove old workaround for AsciiDoc.
* fc/remove-header-workarounds-for-asciidoc:
doc: asciidoc: remove custom header macro
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In 2007 we added a custom header macro to provide version information
7ef195ba3e (Documentation: Add version information to man pages,
2007-03-25),
However, in 2008 asciidoc added the attributes to do this properly [1].
This was not implemented in Git until 2019: 226daba280 (Doc/Makefile:
give mansource/-version/-manual attributes, 2019-09-16).
But in 2023 we are doing it properly, so there's no need for the custom
macro.
[1] https://github.com/asciidoc-py/asciidoc-py/commit/ad78a3c
Cc: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Documentation mark-up fix.
* la/mfc-markup-fix:
MyFirstContribution: render literal *
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The HTML version of MyFirstContribution [1] does not render the
asterisks (*) meant to be typed in as glob patterns by the user, because
they are being interpreted as bold text delimiters.
[1]: Search for "pattern" in
https://git-scm.com/docs/MyFirstContribution#v2-git-send-email
Signed-off-by: Linus Arver <linusa@google.com>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git mergetool" and "git difftool" learns a new configuration
guiDefault to optionally favor configured guitool over non-gui-tool
automatically when $DISPLAY is set.
* tk/mergetool-gui-default-config:
mergetool: new config guiDefault supports auto-toggling gui by DISPLAY
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When no merge.tool or diff.tool is configured or manually selected, the
selection of a default tool is sensitive to the DISPLAY variable; in a
GUI session a gui-specific tool will be proposed if found, and
otherwise a terminal-based one. This "GUI-optimizing" behavior is
important because a GUI can make a huge difference to a user's ability
to understand and correctly complete a non-trivial conflicting merge.
Some time ago the merge.guitool and diff.guitool config options were
introduced to enable users to configure both a GUI tool, and a non-GUI
tool (with fallback if no GUI tool configured), in the same environment.
Unfortunately, the --gui argument introduced to support the selection of
the guitool is still explicit. When using configured tools, there is no
equivalent of the no-tool-configured "propose a GUI tool if we are in a GUI
environment" behavior.
As proposed in <xmqqmtb8jsej.fsf@gitster.g>, introduce new configuration
options, difftool.guiDefault and mergetool.guiDefault, supporting a special
value "auto" which causes the corresponding tool or guitool to be selected
depending on the presence of a non-empty DISPLAY value. Also support "true"
to say "default to the guitool (unless --no-gui is passed on the
commandline)", and "false" as the previous default behavior when these new
configuration options are not specified.
Signed-off-by: Tao Klerks <tao@klerks.biz>
Acked-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git write-tree" learns to work better with sparse-index.
* sl/sparse-write-tree:
write-tree: integrate with sparse index
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Update 'git write-tree' to allow using the sparse-index in memory
without expanding to a full one.
The recursive algorithm for update_one() was already updated in 2de37c5
(cache-tree: integrate with sparse directory entries, 2021-03-03) to
handle sparse directory entries in the index. Hence we can just set the
requires-full-index to false for "write-tree".
The `p2000` tests demonstrate a ~96% execution time reduction for 'git
write-tree' using a sparse index:
Test before after
-----------------------------------------------------------------
2000.78: git write-tree (full-v3) 0.34 0.33 -2.9%
2000.79: git write-tree (full-v4) 0.32 0.30 -6.3%
2000.80: git write-tree (sparse-v3) 0.47 0.02 -95.8%
2000.81: git write-tree (sparse-v4) 0.45 0.02 -95.6%
Signed-off-by: Shuqi Liang <cheskaqiqi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Tests had a few places where we ignored PERL_PATH and blindly used
/usr/bin/perl, which have been corrected.
* jk/use-perl-path-consistently:
t/lib-httpd: pass PERL_PATH to CGI scripts
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As discussed in t/README, tests should aim to use PERL_PATH rather than
straight "perl". We usually do this automatically with a "perl" function
in test-lib.sh, but a few cases need to be handled specially.
One such case is the apply-one-time-perl.sh CGI, which invokes plain
"perl". It should be using $PERL_PATH, but to make that work, we must
also instruct Apache to pass through the variable.
Prior to this patch, doing:
mv /usr/bin/perl /usr/bin/my-perl
make PERL_PATH=/usr/bin/my-perl test
would fail t5702, t5703, and t5616. After this it passes. This is a
pretty extreme case, as even if you install perl elsewhere, you'd likely
still have it in your $PATH. A more realistic case is that you don't
want to use the perl in your $PATH (because it's older, broken, etc) and
expect PERL_PATH to consistently override that (since that's what it's
documented to do). Removing it completely is just a convenient way of
completely breaking it for testing purposes.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git clone" from an empty repository learned to propagate the
choice of the hash algorithm from the source repository to the
newly created repository.
* jc/clone-object-format-from-void:
clone: propagate object-format when cloning from void
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A user could prepare an empty repository and set it to use SHA256 as
the object format. The new repository created by "git clone" from
such a repository however would not record that it is expecting
objects in the same SHA256 format. This works as expected if the
source repository is not empty.
Just like we started copying the name of the primary branch from the
remote repository even if it is unborn in 3d8314f8 (clone: propagate
empty remote HEAD even with other branches, 2022-07-07), lift the
code that records the object format out of the block executed only
when cloning from an instantiated repository, so that it works also
when cloning from an empty repository.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Modernize manpage generation toolchain.
* fc/doc-manpage-base-url-fix:
doc: remove manpage-base-url workaround
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Commit 50d9bbba92 (Documentation: Avoid use of xmlto --stringparam,
2009-12-04) introduced manpage-base-url.xsl because ancient versions of
xmlto did not have --stringparam.
However, that was more than ten years ago, no need for that complexity
anymore, we can just use --stringparam.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Grammofix.
* dw/doc-submittingpatches-grammofix:
SubmittingPatches: clarify MUA discussion with "the"
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Without the word "the", the sentence is a little harder to read. The
word "the" makes it clearer that the comment refers to discrete patches,
and not portions of individual patches.
Signed-off-by: Daniel Watson <ozzloy@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Correct use of an uninitialized structure member.
* jx/cap-object-info-uninitialized-fix:
object-info: init request_info before reading arg
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When retrieving object info via capability "object-info", we store the
command args into a requested_info variable, but forget to initialize
it. Initialize the variable before use to prevent unexpected output.
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Comment updates.
* ar/adjust-tests-for-the-index-fallout:
t2107: fix mention of the_index.cache_changed
t3060: fix mention of function prune_index
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Commit [1] added a test to t2107-update-index-basic.sh with a comment
that mentions macro "active_cache_changed". Later in [2], the macro was
removed and its usage in function cmd_update_index in file
builtin/update-index.c was replaced with "the_index.cache_changed".
Fix the outdated comment in file t2107-update-index-basic.sh.
[1] fa137f67a4 (lockfile.c: store absolute path, 2014-11-02)
[2] dc594180d9 (cocci & cache.h: apply variable section of "pending"
index-compatibility, 2022-11-19)
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit [1] added tests which trigger function prune_cache. The comments
in these tests, however, incorrectly call it "prune_path". Since then,
function "prune_cache" has been renamed to "prune_index" in commit [2].
Later still in commit [3], the_index singleton, which is also mentioned
in a comment, stopped being used directly with function "prune_index".
Fix mentions of function "prune_index" and the struct it changes in
comments in file "t3060-ls-files-with-tree.sh".
[1] 54e1abce90 (Add test case for ls-files --with-tree, 2007-10-03)
[2] 6510ae173a (ls-files: convert prune_cache to take an index,
2017-06-12)
[3] 188dce131f (ls-files: use repository object, 2017-06-22)
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Consistently spell "Message-ID" as such, not "Message-Id".
* jc/spell-id-in-both-caps-in-message-id:
e-mail workflow: Message-ID is spelled with ID in both capital letters
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We used to write "Message-Id:" and "Message-ID:" pretty much
interchangeably, and the header name is defined to be case
insensitive by the RFCs, but the canonical form "Message-ID:" is
used throughout the RFC documents, so let's imitate it ourselves.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
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"git sparse-checkout" command learns a debugging aid for the sparse
rule definitions.
* ws/sparse-check-rules:
builtin/sparse-checkout: add check-rules command
builtin/sparse-checkout: remove NEED_WORK_TREE flag
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There exists no direct way to interrogate git about which paths are
matched by a given set of sparsity rules. It is possible to get this
information from git, but it includes checking out the commit that
contains the paths, applying the sparse checkout patterns and then using
something like 'git ls-files -t' to check if the skip worktree bit is
set. This works in some case, but there are cases where it is awkward or
infeasible to generate a checkout for this purpose.
Exposing the pattern matching of sparse checkout enables more tooling to
be built and avoids a situation where tools that want to reason about
sparse checkouts start containing parallel implementation of the rules.
To accommodate this, add a 'check-rules' subcommand to the
'sparse-checkout' builtin along the lines of the 'git check-ignore' and
'git check-attr' commands. The new command accepts a list of paths on
stdin and outputs just the ones the match the sparse checkout.
To allow for use in a bare repository and to allow for interrogating
about other patterns than the current ones, include a '--rules-file'
option which allows the caller to explicitly pass sparse checkout rules
in the format accepted by 'sparse-checkout set --stdin'.
To allow for reuse of the handling of input patterns for the
'--rules-file' flag, modify 'add_patterns_from_input()' to be able to
read from a 'FILE' instead of just stdin.
To allow for reuse of the logic which decides whether or not rules
should be interpreted as cone-mode patterns, split that part out of
'update_modes()' such that can be called without modifying the config.
An alternative could have been to create a new 'check-sparsity' command.
However, placing it under 'sparse-checkout' allows for a) more easily
re-using the sparse checkout pattern matching and cone/non-code mode
handling, and b) keeps the documentation for the command next to the
experimental warning and the cone-mode discussion.
Signed-off-by: William Sprent <williams@unity3d.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In preparation for adding a sub-command to 'sparse-checkout' that can be
run in a bare repository, remove the 'NEED_WORK_TREE' flag from its
entry in the 'commands' array of 'git.c'.
To avoid that this changes any behaviour, add calls to
'setup_work_tree()' to all of the 'sparse-checkout' sub-commands and add
tests that verify that 'sparse-checkout <cmd>' still fail with a clear
error message telling the user that the command needs a work tree.
Signed-off-by: William Sprent <williams@unity3d.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Emily finally figured out how to set up their alias at DayJob, and would
prefer to use nasamuffin@google.com, partially to reduce confusion
between IRC and list, and partially because they just like the alias a
lot more.
Signed-off-by: Emily Shaffer <nasamuffin@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git fetch --all" does not have to download and handle the same
bundleURI over and over, which has been corrected.
* ds/fetch-bundle-uri-with-all:
fetch: download bundles once, even with --all
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When fetch.bundleURI is set, 'git fetch' downloads bundles from the
given bundle URI before fetching from the specified remote. However,
when using non-file remotes, 'git fetch --all' will launch 'git fetch'
subprocesses which then read fetch.bundleURI and fetch the bundle list
again. We do not expect the bundle list to have new information during
these multiple runs, so avoid these extra calls by un-setting
fetch.bundleURI in the subprocess arguments.
Be careful to skip fetching bundles for the empty bundle string.
Fetching bundles from the empty list presents some interesting test
failures.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up.
* ow/ref-format-remove-unused-member:
ref-filter: remove unused ref_format member
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use_rest was added in b9dee075eb (ref-filter: add %(rest) atom,
2021-07-26) but was never used. As far as I can tell it was used in a
later patch that was submitted to the mailing list but never applied.
Signed-off-by: Øystein Walle <oystwa@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test framework fix.
* jk/chainlint-fixes:
tests: skip test_eval_ in internal chain-lint
tests: drop here-doc check from internal chain-linter
tests: diagnose unclosed here-doc in chainlint.pl
tests: replace chainlint subshell with a function
tests: run internal chain-linter under "make test"
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To check for broken &&-chains, we run "fail_117 && $1" as a test
snippet, and check the exit code. We use test_eval_ to do so, because
that's the way we run the actual test.
But we don't need any of its niceties, like "set -x" tracing. In fact,
they hinder us, because we have to explicitly disable them. So let's
skip that and use "eval" more directly, which is simpler. I had hoped it
would also be faster, but it doesn't seem to produce a measurable
improvement (probably because it's just running internal shell commands,
with no subshells or forks).
Note that there is one gotcha: even though we don't intend to run any of
the commands if the &&-chain is intact, an error like this:
test_expect_success 'broken' '
# this next line breaks the &&-chain
true
# and then this one is executed even by the linter
return 1
'
means we'll "return 1" from the eval, and thus from test_run_(). We
actually do notice this in test_expect_success, but only by saying "hey,
this test didn't say it was OK, so it must have failed", which is not
right (it should say "broken &&-chain").
We can handle this by calling test_eval_inner_() instead, which is our
trick for wrapping "return" in a test snippet. But to do that, we have
to push the trace code out of that inner function and into test_eval_().
This is arguably where it belonged in the first place, but it never
mattered because the "inner_" function had only one caller.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 99a64e4b73c (tests: lint for run-away here-doc, 2017-03-22)
tweaked the chain-lint test to catch unclosed here-docs. It works by
adding an extra "echo" command after the test snippet, and checking that
it is run (if it gets swallowed by a here-doc, naturally it is not run).
The downside here is that we introduced an extra $() substitution, which
happens in a subshell. This has a measurable performance impact when
run for many tests.
The tradeoff in safety was undoubtedly worth it when 99a64e4b73c was
written. But since the external chainlint.pl learned to find these
recently, we can just rely on it. By switching back to a simpler
chain-lint, hyperfine reports a measurable speedup on t3070 (which has
1800 tests):
'HEAD' ran
1.12 ± 0.01 times faster than 'HEAD~1'
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An unclosed here-doc in a test is a problem, because it silently gobbles
up any remaining commands. Since 99a64e4b73c (tests: lint for run-away
here-doc, 2017-03-22) we detect this by piggy-backing on the internal
chainlint checker in test-lib.sh.
However, it would be nice to detect it in chainlint.pl, for a few
reasons:
- the output from chainlint.pl is much nicer; it can show the exact
spot of the error, rather than a vague "somewhere in this test you
broke the &&-chain or had a bad here-doc" message.
- the implementation in test-lib.sh runs for each test snippet. And
since it requires a subshell, the extra cost is small but not zero.
If chainlint.pl can reliably find the problem, we can optimize the
test-lib.sh code.
The chainlint.pl code never intended to find here-doc problems. But
since it has to parse them anyway (to avoid reporting problems inside
here-docs), most of what we need is already there. We can detect the
problem when we fail to find the missing end-tag in swallow_heredocs().
The extra change in scan_heredoc_tag() stores the location of the start
of the here-doc, which lets us mark it as the source of the error in the
output (see the new tests for examples).
[jk: added commit message and tests]
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To test that we don't break the &&-chain, test-lib.sh does something
like:
(exit 117) && $test_commands
and checks that the result is exit code 117. We don't care what that
initial command is, as long as it exits with a unique code. Using "exit"
works and is simple, but is a bit expensive since it requires a subshell
(to avoid exiting the whole script!). This isn't usually very
noticeable, but it can add up for scripts which have a large number of
tests.
Using "return" naively won't work here, because we'd return from the
function eval-ing the snippet (and it wouldn't find &&-chain breakages).
But if we further push that into its own function, it does exactly what
we want, without extra subshell overhead.
According to hyperfine, this produces a measurable improvement when
running t3070 (which has 1800 tests, all of them quite short):
'HEAD' ran
1.09 ± 0.01 times faster than 'HEAD~1'
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 69b9924b875 (t/Makefile: teach `make test` and `make prove` to run
chainlint.pl, 2022-09-01), we run a single chainlint.pl process for all
scripts, and then instruct each individual script to run with the
equivalent of --no-chain-lint, which tells them not to redundantly run
the chainlint script themselves.
However, this also disables the internal linter run within the shell by
eval-ing "(exit 117) && $1" and confirming we get code 117. In theory
the external linter produces a superset of complaints, and we don't need
the internal one anymore. However, we know there is at least one case
where they differ. A test like:
test_expect_success 'should fail linter' '
false &&
sleep 2 &
pid=$! &&
kill $pid
'
is buggy (it ignores the failure from "false", because it is
backgrounded along with the sleep). The internal linter catches this,
but the external one doesn't (and teaching it to do so is complicated[1]).
So not only does "make test" miss this problem, but it's doubly
confusing because running the script standalone does complain.
Let's teach the suppression in the Makefile to only turn off the
external linter (which we know is redundant, as it was already run) and
leave the internal one intact.
I've used a new environment variable to do this here, and intentionally
did not add a "--no-ext-chain-lint" option. This is an internal
optimization used by the Makefile, and not something that ordinary users
would need to tweak.
[1] For discussion of chainlint.pl and this case, see:
https://lore.kernel.org/git/CAPig+cQtLFX4PgXyyK_AAkCvg4Aw2RAC5MmLbib-aHHgTBcDuw@mail.gmail.com/
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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