Commit Graph

21597 Commits

Author SHA1 Message Date
Junio C Hamano
0ebbaa07d0 Merge branch 'jk/t1006-cat-file-objectsize-disk'
Test update.

* jk/t1006-cat-file-objectsize-disk:
  t1006: prefer shell loop to awk for packed object sizes
  t1006: add tests for %(objectsize:disk)
2024-01-12 16:09:56 -08:00
Junio C Hamano
3e8558438d Merge branch 'jw/builtin-objectmode-attr'
The builtin_objectmode attribute is populated for each path
without adding anything in .gitattributes files, which would be
useful in magic pathspec, e.g., ":(attr:builtin_objectmode=100755)"
to limit to executables.

* jw/builtin-objectmode-attr:
  attr: add builtin objectmode values support
2024-01-12 16:09:55 -08:00
Junio C Hamano
bdfa7a2445 Merge branch 'rs/mem-pool-improvements'
MemPool allocator fixes.

* rs/mem-pool-improvements:
  mem-pool: simplify alignment calculation
  mem-pool: fix big allocations
2024-01-08 14:05:17 -08:00
Junio C Hamano
d73db002b5 Merge branch 'en/sparse-checkout-eoo'
"git sparse-checkout (add|set) --[no-]cone --end-of-options" did
not handle "--end-of-options" correctly after a recent update.

* en/sparse-checkout-eoo:
  sparse-checkout: be consistent with end of options markers
2024-01-08 14:05:16 -08:00
Junio C Hamano
492ee03f60 Merge branch 'en/header-cleanup'
Remove unused header "#include".

* en/header-cleanup:
  treewide: remove unnecessary includes in source files
  treewide: add direct includes currently only pulled in transitively
  trace2/tr2_tls.h: remove unnecessary include
  submodule-config.h: remove unnecessary include
  pkt-line.h: remove unnecessary include
  line-log.h: remove unnecessary include
  http.h: remove unnecessary include
  fsmonitor--daemon.h: remove unnecessary includes
  blame.h: remove unnecessary includes
  archive.h: remove unnecessary include
  treewide: remove unnecessary includes in source files
  treewide: remove unnecessary includes from header files
2024-01-08 14:05:15 -08:00
Junio C Hamano
6bf317df4b Merge branch 'jc/archive-list-with-extra-args'
"git archive --list extra garbage" silently ignored excess command
line parameters, which has been corrected.

* jc/archive-list-with-extra-args:
  archive: "--list" does not take further options
2024-01-08 14:05:14 -08:00
René Scharfe
54d8a2531b t1006: prefer shell loop to awk for packed object sizes
To compute the expected on-disk size of packed objects, we sort the
output of show-index by pack offset and then compute the difference
between adjacent entries using awk. This works but has a few readability
problems:

  1. Reading the index in pack order means don't find out the size of an
     oid's entry until we see the _next_ entry. So we have to save it to
     print later.

     We can instead iterate in reverse order, so we compute each oid's
     size as we see it.

  2. Since the awk invocation is inside a text_expect block, we can't
     easily use single-quotes to hold the script. So we use
     double-quotes, but then have to escape the dollar signs in the awk
     script.

     We can swap this out for a shell loop instead (which is made much
     easier by the first change).

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-01-03 09:26:53 -08:00
Junio C Hamano
dbf668a1b7 Merge branch 'ps/pseudo-refs'
Assorted changes around pseudoref handling.

* ps/pseudo-refs:
  bisect: consistently write BISECT_EXPECTED_REV via the refdb
  refs: complete list of special refs
  refs: propagate errno when reading special refs fails
  wt-status: read HEAD and ORIG_HEAD via the refdb
2024-01-02 13:51:30 -08:00
Junio C Hamano
601b1571e8 Merge branch 'jc/orphan-unborn'
Doc updates to clarify what an "unborn branch" means.

* jc/orphan-unborn:
  orphan/unborn: fix use of 'orphan' in end-user facing messages
  orphan/unborn: add to the glossary and use them consistently
2024-01-02 13:51:30 -08:00
Junio C Hamano
cce4778520 Merge branch 'rj/status-bisect-while-rebase'
"git status" is taught to show both the branch being bisected and
being rebased when both are in effect at the same time.

* rj/status-bisect-while-rebase:
  status: fix branch shown when not only bisecting
2024-01-02 13:51:29 -08:00
Joanna Wang
2232a88ab6 attr: add builtin objectmode values support
Gives all paths builtin objectmode values based on the paths' modes
(one of 100644, 100755, 120000, 040000, 160000). Users may use
this feature to filter by file types. For example a pathspec such as
':(attr:builtin_objectmode=160000)' could filter for submodules without
needing to have `builtin_objectmode=160000` to be set in .gitattributes
for every submodule path.

These values are also reflected in `git check-attr` results.
If the git_attr_direction is set to GIT_ATTR_INDEX or GIT_ATTR_CHECKIN
and a path is not found in the index, the value will be unspecified.

This patch also reserves the builtin_* attribute namespace for objectmode
and any future builtin attributes. Any user defined attributes using this
reserved namespace will result in a warning. This is a breaking change for
any existing builtin_* attributes.
Pathspecs with some builtin_* attribute name (excluding builtin_objectmode)
will behave like any attribute where there are no user specified values.

Signed-off-by: Joanna Wang <jojwang@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-28 13:21:52 -08:00
René Scharfe
6cbae64000 mem-pool: fix big allocations
Memory pool allocations that require a new block and would fill at
least half of it are handled specially.  Before 158dfeff3d (mem-pool:
add life cycle management functions, 2018-07-02) they used to be
allocated outside of the pool.  This patch made mem_pool_alloc() create
a bespoke block instead, to allow releasing it when the pool gets
discarded.

Unfortunately mem_pool_alloc() returns a pointer to the start of such a
bespoke block, i.e. to the struct mp_block at its top.  When the caller
writes to it, the management information gets corrupted.  This affects
mem_pool_discard() and -- if there are no other blocks in the pool --
also mem_pool_alloc().

Return the payload pointer of bespoke blocks, just like for smaller
allocations, to protect the management struct.

Also update next_free to mark the block as full.  This is only strictly
necessary for the first allocated block, because subsequent ones are
inserted after the current block and never considered for further
allocations, but it's easier to just do it in all cases.

Add a basic unit test to demonstrate the issue by using
mem_pool_calloc() with a tiny block size, which forces the creation of a
bespoke block.

Helped-by: Phillip Wood <phillip.wood123@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-28 12:22:43 -08:00
Junio C Hamano
94e8e404a7 Merge branch 'ps/clone-into-reftable-repository'
"git clone" has been prepared to allow cloning a repository with
non-default hash function into a repository that uses the reftable
backend.

* ps/clone-into-reftable-repository:
  builtin/clone: create the refdb with the correct object format
  builtin/clone: skip reading HEAD when retrieving remote
  builtin/clone: set up sparse checkout later
  builtin/clone: fix bundle URIs with mismatching object formats
  remote-curl: rediscover repository when fetching refs
  setup: allow skipping creation of the refdb
  setup: extract function to create the refdb
2023-12-27 14:52:28 -08:00
Junio C Hamano
6db745e1f5 Merge branch 'rs/t6300-compressed-size-fix'
Test fix.

* rs/t6300-compressed-size-fix:
  t6300: avoid hard-coding object sizes
2023-12-27 14:52:27 -08:00
Junio C Hamano
deb67d12de Merge branch 'jx/fetch-atomic-error-message-fix'
"git fetch --atomic" issued an unnecessary empty error message,
which has been corrected.

* jx/fetch-atomic-error-message-fix:
  fetch: no redundant error message for atomic fetch
  t5574: test porcelain output of atomic fetch
2023-12-27 14:52:27 -08:00
Junio C Hamano
aa6122ce52 Merge branch 'sp/test-i18ngrep'
Error message fix in the test framework.

* sp/test-i18ngrep:
  test-lib-functions.sh: fix test_grep fail message wording
2023-12-27 14:52:27 -08:00
Junio C Hamano
9df9e3770a Merge branch 'jk/mailinfo-iterative-unquote-comment'
The code to parse the From e-mail header has been updated to avoid
recursion.

* jk/mailinfo-iterative-unquote-comment:
  mailinfo: avoid recursion when unquoting From headers
  t5100: make rfc822 comment test more careful
2023-12-27 14:52:26 -08:00
Junio C Hamano
f6a129ceaf Merge branch 'ps/chainlint-self-check-update'
Test framework update.

* ps/chainlint-self-check-update:
  tests: adjust whitespace in chainlint expectations
2023-12-27 14:52:25 -08:00
Junio C Hamano
73b1808fa3 Merge branch 'rs/show-ref-incompatible-options'
Code clean-up for sanity checking of command line options for "git
show-ref".

* rs/show-ref-incompatible-options:
  show-ref: use die_for_incompatible_opt3()
2023-12-27 14:52:25 -08:00
Junio C Hamano
db2cf6f3bb Merge branch 'jk/mailinfo-oob-read-fix'
OOB read fix.

* jk/mailinfo-oob-read-fix:
  mailinfo: fix out-of-bounds memory reads in unquote_quoted_pair()
2023-12-27 14:52:24 -08:00
Junio C Hamano
f09e74175d Merge branch 'jc/checkout-B-branch-in-use'
"git checkout -B <branch> [<start-point>]" allowed a branch that is
in use in another worktree to be updated and checked out, which
might be a bit unexpected.  The rule has been tightened, which is a
breaking change.  "--ignore-other-worktrees" option is required to
unbreak you, if you are used to the current behaviour that "-B"
overrides the safety.

* jc/checkout-B-branch-in-use:
  checkout: forbid "-B <branch>" from touching a branch used elsewhere
  checkout: refactor die_if_checked_out() caller
2023-12-27 14:52:24 -08:00
Elijah Newren
f8ab66f9f3 sparse-checkout: be consistent with end of options markers
93851746 (parse-options: decouple "--end-of-options" and "--",
2023-12-06) updated the world order to make callers of parse-options
that set PARSE_OPT_KEEP_UNKNOWN_OPT responsible for deciding what to
do with "--end-of-options" they may see after parse_options() returns.

This made a previous bug in sparse-checkout more visible; namely,
that

  git sparse-checkout [add|set] --[no-]cone --end-of-options ...

would simply treat "--end-of-options" as one of the paths to include in
the sparse-checkout.  But this was already problematic before; namely,

  git sparse-checkout [add|set| --[no-]cone --sikp-checks ...

would not give an error on the mis-typed "--skip-checks" but instead
simply treat "--sikp-checks" as a path or pattern to include in the
sparse-checkout, which is highly unfriendly.

This behavior began when the command was converted to parse-options in
7bffca95ea (sparse-checkout: add '--stdin' option to set subcommand,
2019-11-21).  Back then it was just called KEEP_UNKNOWN. Later it was
renamed to KEEP_UNKNOWN_OPT in 99d86d60e5 (parse-options:
PARSE_OPT_KEEP_UNKNOWN only applies to --options, 2022-08-19) to clarify
that it was only about dashed options; we always keep non-option
arguments.  Looking at that original patch, both Peff and I think that
the author was simply confused about the mis-named option, and really
just wanted to keep the non-option arguments.  We never should have used
the flag all along (and the other cases were cargo-culted within the
file).

Remove the erroneous PARSE_OPT_KEEP_UNKNOWN_OPT flag now to fix this
bug.  Note that this does mean that anyone who might have been using

  git sparse-checkout [add|set] [--[no-]cone] --foo --bar

to request paths or patterns '--foo' and '--bar' will now have to use

  git sparse-checkout [add|set] [--[no-]cone] -- --foo --bar

That makes sparse-checkout more consistent with other git commands,
provides users much friendlier error messages and behavior, and is
consistent with the all-caps warning in git-sparse-checkout.txt that
this command "is experimental...its behavior...will likely change".  :-)

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-26 12:15:25 -08:00
Elijah Newren
d57c671a51 treewide: remove unnecessary includes in source files
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-26 12:04:33 -08:00
Elijah Newren
e9bb166491 submodule-config.h: remove unnecessary include
The unnecessary include in the header transitively pulled in some
other headers actually needed by source files, though.  Have those
source files explicitly include the headers they need.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-26 12:04:32 -08:00
Elijah Newren
545f7b50e8 pkt-line.h: remove unnecessary include
The unnecessary include in the header transitively pulled in some
other headers actually needed by source files, though.  Have those
source files explicitly include the headers they need.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-26 12:04:32 -08:00
Elijah Newren
eea0e59ffb treewide: remove unnecessary includes in source files
Each of these were checked with
   gcc -E -I. ${SOURCE_FILE} | grep ${HEADER_FILE}
to ensure that removing the direct inclusion of the header actually
resulted in that header no longer being included at all (i.e. that
no other header pulled it in transitively).

...except for a few cases where we verified that although the header
was brought in transitively, nothing from it was directly used in
that source file.  These cases were:
  * builtin/credential-cache.c
  * builtin/pull.c
  * builtin/send-pack.c

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-26 12:04:31 -08:00
Jeff King
f546151228 t1006: add tests for %(objectsize:disk)
Back when we added this placeholder in a4ac106178 (cat-file: add
%(objectsize:disk) format atom, 2013-07-10), there were no tests,
claiming "[...]the exact numbers returned are volatile and subject to
zlib and packing decisions".

But we can use a little shell hackery to get the expected numbers
ourselves. To a certain degree this is just re-implementing what Git is
doing under the hood, but it is still worth doing. It makes sure we
exercise the %(objectsize:disk) code at all, and having the two
implementations agree gives us more confidence.

Note that our shell code assumes that no object appears twice (either in
two packs, or as both loose and packed), as then the results really are
undefined. That's OK for our purposes, and the test will notice if that
assumption is violated (the shell version would produce duplicate lines
that Git's output does not have).

Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-21 10:37:46 -08:00
Junio C Hamano
d6b6cd1393 archive: "--list" does not take further options
"git archive --list blah" should notice an extra command line
parameter that goes unused.  Make it so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-21 10:33:09 -08:00
Junio C Hamano
2e13ed4671 Merge branch 'jk/end-of-options' into jc/sparse-checkout-set-add-end-of-options
* jk/end-of-options:
  parse-options: decouple "--end-of-options" and "--"
2023-12-20 21:49:33 -08:00
Junio C Hamano
67dfb897b3 Merge branch 'jk/bisect-reset-fix'
"git bisect reset" has been taught to clean up state files and refs
even when BISECT_START file is gone.

* jk/bisect-reset-fix:
  bisect: always clean on reset
2023-12-20 10:14:54 -08:00
Junio C Hamano
9eec6a1c5f Merge branch 'jk/end-of-options'
"git $cmd --end-of-options --rev -- --path" for some $cmd failed
to interpret "--rev" as a rev, and "--path" as a path.  This was
fixed for many programs like "reset" and "checkout".

* jk/end-of-options:
  parse-options: decouple "--end-of-options" and "--"
2023-12-20 10:14:54 -08:00
Junio C Hamano
3c8f932d35 Merge branch 'rs/incompatible-options-messages'
Clean-up code that handles combinations of incompatible options.

* rs/incompatible-options-messages:
  worktree: simplify incompatibility message for --orphan and commit-ish
  worktree: standardize incompatibility messages
  clean: factorize incompatibility message
  revision, rev-parse: factorize incompatibility messages about - -exclude-hidden
  revision: use die_for_incompatible_opt3() for - -graph/--reverse/--walk-reflogs
  repack: use die_for_incompatible_opt3() for -A/-k/--cruft
  push: use die_for_incompatible_opt4() for - -delete/--tags/--all/--mirror
2023-12-20 10:14:53 -08:00
Junio C Hamano
c4bf868bee Merge branch 'jc/revision-parse-int'
The command line parser for the "log" family of commands was too
loose when parsing certain numbers, e.g., silently ignoring the
extra 'q' in "git log -n 1q" without complaining, which has been
tightened up.

* jc/revision-parse-int:
  revision: parse integer arguments to --max-count, --skip, etc., more carefully
2023-12-20 10:14:53 -08:00
Junio C Hamano
a21a929643 Merge branch 'ps/ref-tests-update-more'
Tests update.

* ps/ref-tests-update-more:
  t6301: write invalid object ID via `test-tool ref-store`
  t5551: stop writing packed-refs directly
  t5401: speed up creation of many branches
  t4013: simplify magic parsing and drop "failure"
  t3310: stop checking for reference existence via `test -f`
  t1417: make `reflog --updateref` tests backend agnostic
  t1410: use test-tool to create empty reflog
  t1401: stop treating FETCH_HEAD as real reference
  t1400: split up generic reflog tests from the reffile-specific ones
  t0410: mark tests to require the reffiles backend
2023-12-20 10:14:53 -08:00
Junio C Hamano
425e7f0532 Merge branch 'en/complete-sparse-checkout'
Command line completion (in contrib/) learned to complete path
arguments to the "add/set" subcommands of "git sparse-checkout"
better.

* en/complete-sparse-checkout:
  completion: avoid user confusion in non-cone mode
  completion: avoid misleading completions in cone mode
  completion: fix logic for determining whether cone mode is active
  completion: squelch stray errors in sparse-checkout completion
2023-12-20 10:14:52 -08:00
Junio C Hamano
c1aefb6d04 Merge branch 'jh/trace2-redact-auth'
trace2 streams used to record the URLs that potentially embed
authentication material, which has been corrected.

* jh/trace2-redact-auth:
  t0212: test URL redacting in EVENT format
  t0211: test URL redacting in PERF format
  trace2: redact passwords from https:// URLs by default
  trace2: fix signature of trace2_def_param() macro
2023-12-18 14:10:13 -08:00
Junio C Hamano
78956864b0 Merge branch 'ad/merge-file-diff-algo'
"git merge-file" learned to take the "--diff-algorithm" option to
use algorithm different from the default "myers" diff.

* ad/merge-file-diff-algo:
  merge-file: add --diff-algorithm option
2023-12-18 14:10:13 -08:00
Junio C Hamano
cacf27bf82 Merge branch 'rs/column-leakfix'
Leakfix.

* rs/column-leakfix:
  column: release strbuf and string_list after use
2023-12-18 14:10:13 -08:00
Junio C Hamano
b3e223ddda Merge branch 'rs/i18n-cannot-be-used-together'
Clean-up code that handles combinations of incompatible options.

* rs/i18n-cannot-be-used-together:
  i18n: factorize even more 'incompatible options' messages
2023-12-18 14:10:12 -08:00
Junio C Hamano
ec5ab1482d Merge branch 'js/update-urls-in-doc-and-comment'
Stale URLs have been updated to their current counterparts (or
archive.org) and HTTP links are replaced with working HTTPS links.

* js/update-urls-in-doc-and-comment:
  doc: refer to internet archive
  doc: update links for andre-simon.de
  doc: switch links to https
  doc: update links to current pages
2023-12-18 14:10:12 -08:00
Junio C Hamano
66685e8555 Merge branch 'ps/commit-graph-less-paranoid'
Earlier we stopped relying on commit-graph that (still) records
information about commits that are lost from the object store,
which has negative performance implications.  The default has been
flipped to disable this pessimization.

* ps/commit-graph-less-paranoid:
  commit-graph: disable GIT_COMMIT_GRAPH_PARANOIA by default
2023-12-18 14:10:11 -08:00
Junio C Hamano
02230b74e8 Merge branch 'cc/git-replay'
Introduce "git replay", a tool meant on the server side without
working tree to recreate a history.

* cc/git-replay:
  replay: stop assuming replayed branches do not diverge
  replay: add --contained to rebase contained branches
  replay: add --advance or 'cherry-pick' mode
  replay: use standard revision ranges
  replay: make it a minimal server side command
  replay: remove HEAD related sanity check
  replay: remove progress and info output
  replay: add an important FIXME comment about gpg signing
  replay: change rev walking options
  replay: introduce pick_regular_commit()
  replay: die() instead of failing assert()
  replay: start using parse_options API
  replay: introduce new builtin
  t6429: remove switching aspects of fast-rebase
2023-12-18 14:10:11 -08:00
Junio C Hamano
71c746632a Merge branch 'ps/ref-deletion-updates'
Simplify API implementation to delete references by eliminating
duplication.

* ps/ref-deletion-updates:
  refs: remove `delete_refs` callback from backends
  refs: deduplicate code to delete references
  refs/files: use transactions to delete references
  t5510: ensure that the packed-refs file needs locking
2023-12-18 14:10:11 -08:00
Shreyansh Paliwal
37e8d795be test-lib-functions.sh: fix test_grep fail message wording
In the recent commit 2e87fca189 (test framework: further deprecate
test_i18ngrep, 2023-10-31), the test_i18ngrep function was
deprecated, and all the callers were updated to call the test_grep
function instead.  But test_grep inherited an error message that
still refers to test_i18ngrep by mistake.  Correct it so that a
broken call to the test_grep will identify itself as such.

Signed-off-by: Shreyansh Paliwal <shreyanshpaliwalcmsmn@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-18 10:44:41 -08:00
Jiang Xin
18ce48918c fetch: no redundant error message for atomic fetch
If an error occurs during an atomic fetch, a redundant error message
will appear at the end of do_fetch(). It was introduced in b3a804663c
(fetch: make `--atomic` flag cover backfilling of tags, 2022-02-17).

Because a failure message is displayed before setting retcode in the
function do_fetch(), calling error() on the err message at the end of
this function may result in redundant or empty error message to be
displayed.

We can remove the redundant error() function, because we know that
the function ref_transaction_abort() never fails. While we can find a
common pattern for calling ref_transaction_abort() by running command
"git grep -A1 ref_transaction_abort", e.g.:

    if (ref_transaction_abort(transaction, &error))
        error("abort: %s", error.buf);

Following this pattern, we can tolerate the return value of the function
ref_transaction_abort() being changed in the future. We also delay the
output of the err message to the end of do_fetch() to reduce redundant
code. With these changes, the test case "fetch porcelain output
(atomic)" in t5574 will also be fixed.

Helped-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-18 08:30:33 -08:00
Jiang Xin
97d82b2963 t5574: test porcelain output of atomic fetch
The test case "fetch porcelain output" checks output of the fetch
command. The error output must be empty with the follow assertion:

    test_must_be_empty stderr

But this assertion fails if using atomic fetch. Refactor this test case
to use different fetch options by splitting it into three test cases.

  1. "setup for fetch porcelain output".

  2. "fetch porcelain output": for non-atomic fetch.

  3. "fetch porcelain output (atomic)": for atomic fetch.

Add new command "test_commit ..." in the first test case, so that if we
run these test cases individually (--run=4-6), "git rev-parse HEAD~"
command will work properly. Run the above test cases, we can find that
one test case has a known breakage, as shown below:

    ok 4 - setup for fetch porcelain output
    ok 5 - fetch porcelain output  # TODO known breakage vanished
    not ok 6 - fetch porcelain output (atomic) # TODO known breakage

The failed test case has an error message with only the error prompt but
no message body, as follows:

    'stderr' is not empty, it contains:
    error:

In a later commit, we will fix this issue.

Helped-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-18 08:30:32 -08:00
Patrick Steinhardt
647b5e0998 tests: adjust whitespace in chainlint expectations
The "check-chainlint" target runs automatically when running tests and
performs self-checks to verify that the chainlinter itself produces the
expected output. Originally, the chainlinter was implemented via sed,
but the infrastructure has been rewritten in fb41727b7e (t: retire
unused chainlint.sed, 2022-09-01) to use a Perl script instead.

The rewrite caused some slight whitespace changes in the output that are
ultimately not of much importance. In order to be able to assert that
the actual chainlinter errors match our expectations we thus have to
ignore whitespace characters when diffing them. As the `-w` flag is not
in POSIX we try to use `git diff -w --no-index` before we fall back to
`diff -w -u`.

To accomodate for cases where the host system has no Git installation we
use the locally-compiled version of Git. This can result in problems
though when the Git project's repository is using extensions that the
locally-compiled version of Git doesn't understand. It will refuse to
run and thus cause the checks to fail.

Instead of improving the detection logic, fix our ".expect" files so
that we do not need any post-processing at all anymore. This allows us
to drop the `-w` flag when diffing so that we can always use diff(1)
now.

Note that we keep some of the post-processing of `chainlint.pl` output
intact to strip leading line numbers generated by the script. Having
these would cause a rippling effect whenever we add a new test that
sorts into the middle of existing tests and would require us to
renumerate all subsequent lines, which seems rather pointless.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-15 08:36:14 -08:00
Jeff King
2d9396c2fe t5100: make rfc822 comment test more careful
When processing "From" headers in an email, mailinfo "unquotes" quoted
strings and rfc822 parenthesized comments. For quoted strings, we
actually remove the double-quotes, so:

  From: "A U Thor" <someone@example.com>

become:

  Author: A U Thor
  Email: someone@example.com

But for comments, we leave the outer parentheses in place, so:

  From: A U (this is a comment) Thor <someone@example.com>

becomes:

  Author: A U (this is a comment) Thor
  Email: someone@example.com

So what is the comment "unquoting" actually doing? In our code, being in
a comment section has exactly two effects:

  1. We'll unquote backslash-escaped characters inside a comment
     section.

  2. We _won't_ unquote double-quoted strings inside a comment section.

Our test for comments in t5100 checks this:

  From: "A U Thor" <somebody@example.com> (this is \(really\) a comment (honestly))

So it is covering (1), but not (2). Let's add in a quoted string to
cover this.

Moreover, because the comment appears at the end of the From header,
there's nothing to confirm that we correctly found the end of the
comment section (and not just the end-of-string). Let's instead move it
to the beginning of the header, which means we can confirm that the
existing quoted string is detected (which will only happen if we know
we've left the comment block).

As expected, the test continues to pass, but this will give us more
confidence as we refactor the code in the next patch.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-14 14:33:50 -08:00
Patrick Steinhardt
0a06892ddd bisect: consistently write BISECT_EXPECTED_REV via the refdb
We're inconsistently writing BISECT_EXPECTED_REV both via the filesystem
and via the refdb, which violates the newly established rules for how
special refs must be treated. This works alright in practice with the
reffiles reference backend, but will cause bugs once we gain additional
backends.

Fix this issue and consistently write BISECT_EXPECTED_REV via the refdb
so that it is no longer a special ref.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-14 09:25:27 -08:00
Patrick Steinhardt
668cdc043f refs: propagate errno when reading special refs fails
Some refs in Git are more special than others due to reasons explained
in the next commit. These refs are read via `refs_read_special_head()`,
but this function doesn't behave the same as when we try to read a
normal ref. Most importantly, we do not propagate `failure_errno` in the
case where the reference does not exist, which is behaviour that we rely
on in many parts of Git.

Fix this bug by propagating errno when `strbuf_read_file()` fails.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-12-14 09:25:26 -08:00