This section was added in 3d89a8c118 (Documentation/technical: add
cruft-packs.txt, 2022-05-20) to highlight a potential pitfall when
deploying cruft packs in an environment where multiple versions of Git
are GC-ing the same repository.
Now that it has been more than a year since 3d89a8c118 was written,
let's drop this section as it is no longer relevant.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This text, originally from 3d89a8c118 (Documentation/technical: add
cruft-packs.txt, 2022-05-20) lists multiple cruft packs as a potential
alternative to the design of cruft packs.
We have always supported multiple cruft packs (i.e. we use the most
recent mtime for a given object among all cruft packs which contain it,
etc.), but haven't encouraged its use.
We still aren't encouraging users to go out and generate multiple cruft
packs, but let's take a step in that direction by dropping language that
suggests we aren't capable of working with multiple cruft packs.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When pack-objects learned the `--cruft` option back in b757353676
(builtin/pack-objects.c: --cruft without expiration, 2022-05-20), we
explicitly forbade `--cruft` with `--max-pack-size`.
At the time, there was no specific rationale given in the patch for not
supporting the `--max-pack-size` option with `--cruft`. (As best I can
remember, it's because we were trying to push users towards only ever
having a single cruft pack, but I cannot be sure).
However, `--max-pack-size` is flexible enough that it already works with
`--cruft` and can shard unreachable objects across multiple cruft packs,
creating separate ".mtimes" files as appropriate. In fact, the
`--max-pack-size` option worked with `--cruft` as far back as
b757353676!
This is because we overwrite the `written_list`, and pass down the
appropriate length, i.e. the number of objects written in each pack
shard.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When reading input with the `--cruft` option, `git pack-objects` reads
each line into a strbuf, and then moves it to either the list of
discarded or fresh packs, depending on whether or not the input line
starts with a '-' character.
At the beginning of each loop iteration, the next line of input is read
with `strbuf_getline()`, which calls `strbuf_reset()` (as a part of
`strbuf_getwholeline()`) before reading the next line of input.
Thus, the call to `strbuf_reset()` (added back in b757353676
(builtin/pack-objects.c: --cruft without expiration, 2022-05-20)) at the
end of the loop is unnecessary, so let's remove it accordingly.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These two topics did not see much interest and reviews while they
were on 'next'; let's "inflict" them to the general public and see
if anybody screams, which is much less nicer way than to merge
only topics that are well reviewed down in an orderly manner, but
that is the only thing we can do to these topics without any
development community help.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Update two credential helpers to correctly match which credential
to erase; they dropped not the ones with stale password.
* mh/credential-erase-improvements-more:
credential/wincred: erase matching creds only
credential/libsecret: erase matching creds only
The way authentication related data other than passwords (e.g.
oath token and password expiration data) are stored in libsecret
keyrings has been rethought.
* mh/credential-libsecret-attrs:
credential/libsecret: store new attributes
"git cmd -h" learned to signal which options can be negated by
listing such options like "--[no-]opt".
* rs/parse-options-negation-help:
parse-options: simplify usage_padding()
parse-options: no --[no-]no-...
parse-options: factor out usage_indent() and usage_padding()
parse-options: show negatability of options in short help
t1502: test option negation
t1502: move optionspec help output to a file
t1502, docs: disallow --no-help
subtree: disallow --no-{help,quiet,debug,branch,message}
Hourly and other schedule of "git maintenance" jobs are randomly
distributed now.
* ds/maintenance-schedule-fuzz:
maintenance: update schedule before config
maintenance: fix systemd schedule overlaps
maintenance: use random minute in systemd scheduler
maintenance: swap method locations
maintenance: use random minute in cron scheduler
maintenance: use random minute in Windows scheduler
maintenance: use random minute in launchctl scheduler
maintenance: add get_random_minute()
Test updates.
* ob/test-lib-rebase-fake-editor-updates:
t/lib-rebase: improve documentation of set_fake_editor()
t/lib-rebase: set_fake_editor(): handle FAKE_LINES more consistently
t/lib-rebase: set_fake_editor(): fix recognition of reset's short command
Overly long label names used in the sequencer machinery are now
chopped to fit under filesystem limitation.
* mp/rebase-label-length-limit:
rebase: allow overriding the maximal length of the generated labels
sequencer: truncate labels to accommodate loose refs
A message written in olden time prevented a branch from getting
checked out saying it is already checked out elsewhere, but these
days, we treat a branch that is being bisected or rebased just like
a branch that is checked out and protect it. Rephrase the message
to say that the branch is in use.
* rj/branch-in-use-error-message:
branch: error message checking out a branch in use
branch: error message deleting a branch in use
Fix a minor regression that some compiler might notice.
* 'jk/function-pointer-mismatches-fix' (early part):
fsck: use enum object_type for fsck_walk callback
We prefer for callback functions to match the signature with which
they'll be called, rather than casting them to the correct type when
assigning function pointers. Even though casting often works in the real
world, it is a violation of the standard.
We did a mass conversion in 939af16eac (hashmap_cmp_fn takes
hashmap_entry params, 2019-10-06), but have grown a few new cases since
then. Because of the cast, the compiler does not complain. However, as
of clang-18, UBSan will catch these at run-time, and the case in
range-diff.c triggers when running t3206.
After seeing that one, I scanned the results of:
git grep '_fn)[^(]' '*.c' | grep -v typedef
and found a similar case in compat/terminal.c (which presumably isn't
called in the test suite, since it doesn't trigger UBSan). There might
be other cases lurking if the cast is done using a typedef that doesn't
end in "_fn", but loosening it finds too many false positives. I also
looked for:
git grep ' = ([a-z_]*) *[a-z]' '*.c'
to find assignments that cast, but nothing looked like a function.
The resulting code is unfortunately a little longer, but the bonus of
using container_of() is that we are no longer restricted to the
hashmap_entry being at the start of the struct.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We switched the function interface for fsck callbacks in a1aad71601
(fsck.h: use "enum object_type" instead of "int", 2021-03-28). However,
we accidentally flipped the type back to "int" as part of 0b4e9013f1
(fsck: mark unused parameters in various fsck callbacks, 2023-07-03).
The mistake happened because that commit was written before a1aad71601
and rebased forward, and I screwed up while resolving the conflict.
Curiously, the compiler does not warn about this mismatch, at least not
when using gcc and clang on Linux (nor in any of our CI environments).
Based on 28abf260a5 (builtin/fsck.c: don't conflate "int" and "enum" in
callback, 2021-06-01), I'd guess that this would cause the AIX xlc
compiler to complain. I noticed because clang-18's UBSan now identifies
mis-matched function calls at runtime, and does complain of this case
when running the test suite.
I'm not entirely clear on whether this mismatch is a problem in
practice. Compilers are certainly free to make enums smaller than "int"
if they don't need the bits, but I suspect that they have to promote
back to int for function calls (though I didn't dig in the standard, and
I won't be surprised if I'm simply wrong and the real-world impact would
depend on the ABI).
Regardless, switching it back to enum is obviously the right thing to do
here; the switch to "int" was simply a mistake.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Typo/grammofix to documentation added during this cycle.
* tl/notes-separator:
notes doc: tidy up `--no-stripspace` paragraph
notes doc: split up run-on sentences
With `--stdin`, we read *from* standard input, not *for*.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When commit 00bf685975 (show-ref doc: update for internal consistency,
2023-05-19) switched from double quotes to backticks around our {caret}
macro, we started rendering "{caret}" literally. Fix this by replacing
by a "^" character.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Where we document the `--no-stripspace` option, remove a superfluous
"For" to fix the grammar. Mark option names and command names using
`backticks` to set them in monospace.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When commit c4e2aa7d45 (notes.c: introduce "--[no-]stripspace" option,
2023-05-27) mentioned the new `--no-stripspace` in the documentation for
`-m` and `-F`, it created run-on sentences. It also used slightly
different language in the two sections for no apparent reason. Split the
sentences in two to improve readability, and while touching the two
sites, make them more similar.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 7ba7c52d76 (upload-pack: fix race condition in error messages,
2023-08-10), we have fixed a race in t5516-fetch-push.sh where sometimes
error messages got intermingled. This was done by splitting up the call
to `die()` such that we print the error message before writing to the
remote side, followed by a call to `exit(1)` afterwards.
This causes a subtle regression though as `die()` causes us to exit with
exit code 128, whereas we now call `exit(1)`. It's not really clear
whether we want to guarantee any specific error code in this case, and
neither do we document anything like that. But on the other hand, it
seems rather clear that this is an unintended side effect of the change
given that this change in behaviour was not mentioned at all.
Restore the status-quo by exiting with 128. The test in t5703 to
ensure that "git fetch" fails by using test_must_fail, which does
not care between exiting 1 and 128, so this changes will not affect
any test.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
