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6 commits

Author SHA1 Message Date
Ronan Pigott 13d5bbdf72 for-each-repo: interpolate repo path arguments
This is a quality of life change for git-maintenance, so repos can be
recorded with the tilde syntax. The register subcommand will not record
repos in this format by default.

Signed-off-by: Ronan Pigott <ronan@rjp.ie>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
2022-11-14 22:39:25 -05:00
Ævar Arnfjörð Bjarmason c08cfc395f doc txt & -h consistency: add or fix optional "--" syntax
Add the "[--]" for those cases where the *.txt and -h were
inconsistent, or where we incorrectly stated in one but not the other
that the "--" was mandatory.

In the case of "rev-list" both sides were wrong, as we we don't
require one or more paths if "--" is used, e.g. this is OK:

	git rev-list HEAD --

That part of this change is not a "doc txt & -h consistency" change,
as we're changing both versions, doing so here makes both sides
consistent.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-13 09:32:56 -07:00
Ævar Arnfjörð Bjarmason f6a8ef0700 doc txt & -h consistency: fix mismatching labels
Fix various inconsistencies between command SYNOPSIS and the
corresponding -h output where our translatable labels didn't match
up.

In some cases we need to adjust the prose that follows the SYNOPSIS
accordingly, as it refers back to the changed label.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-13 09:32:56 -07:00
Andrzej Hunt 2b2999460c builtin/for-each-repo: remove unnecessary argv copy to plug leak
cmd_for_each_repo() copies argv into args (a strvec), which is later
passed into run_command_on_repo(), which in turn copies that strvec onto
the end of child.args. The initial copy is unnecessary (we never modify
args). We therefore choose to just pass argv directly into
run_command_on_repo(), which lets us avoid the copy and fixes the leak.

LSAN output from t0068:

Direct leak of 192 byte(s) in 1 object(s) allocated from:
    #0 0x7f63bd4ab8b0 in realloc (/usr/lib64/libasan.so.4+0xdc8b0)
    #1 0x98d7e6 in xrealloc wrapper.c:126
    #2 0x916914 in strvec_push_nodup strvec.c:19
    #3 0x916a6e in strvec_push strvec.c:26
    #4 0x4be4eb in cmd_for_each_repo builtin/for-each-repo.c:49
    #5 0x410dcd in run_builtin git.c:475
    #6 0x410dcd in handle_builtin git.c:729
    #7 0x414087 in run_argv git.c:818
    #8 0x414087 in cmd_main git.c:949
    #9 0x40e9ec in main common-main.c:52
    #10 0x7f63bc9fa349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 22 byte(s) in 2 object(s) allocated from:
    #0 0x7f63bd445e30 in __interceptor_strdup (/usr/lib64/libasan.so.4+0x76e30)
    #1 0x98d698 in xstrdup wrapper.c:29
    #2 0x916a63 in strvec_push strvec.c:26
    #3 0x4be4eb in cmd_for_each_repo builtin/for-each-repo.c:49
    #4 0x410dcd in run_builtin git.c:475
    #5 0x410dcd in handle_builtin git.c:729
    #6 0x414087 in run_argv git.c:818
    #7 0x414087 in cmd_main git.c:949
    #8 0x40e9ec in main common-main.c:52
    #9 0x7f63bc9fa349 in __libc_start_main (/lib64/libc.so.6+0x24349)

See also discussion about the original implementation below - this code
appears to have evolved from a callback explaining the double-strvec-copy
pattern, but there's no strong reason to keep that now:
  https://lore.kernel.org/git/68bbeca5-314b-08ee-ef36-040e3f3814e9@gmail.com/

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-26 12:19:20 -07:00
Derrick Stolee 6c62f01552 for-each-repo: do nothing on empty config
'git for-each-repo --config=X' should return success without calling any
subcommands when the config key 'X' has no value. The current
implementation instead segfaults.

A user could run into this issue if they used 'git maintenance start' to
initialize their cron schedule using 'git for-each-repo
--config=maintenance.repo ...' but then using 'git maintenance
unregister' to remove the config option. (Note: 'git maintenance stop'
would remove the config _and_ remove the cron schedule.)

Add a simple test to ensure this works. Use 'git help --no-such-option'
as the potential subcommand to ensure that we will hit a failure if the
subcommand is ever run.

Reported-by: Andreas Bühmann <dev@uuml.de>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-07 19:12:02 -08:00
Derrick Stolee 4950b2a2b5 for-each-repo: run subcommands on configured repos
It can be helpful to store a list of repositories in global or system
config and then iterate Git commands on that list. Create a new builtin
that makes this process simple for experts. We will use this builtin to
run scheduled maintenance on all configured repositories in a future
change.

The test is very simple, but does highlight that the "--" argument is
optional.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-25 10:59:44 -07:00