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Various fixes to "git commit-graph verify".
* jk/commit-graph-verify-fix:
commit-graph: report incomplete chains during verification
commit-graph: tighten chain size check
commit-graph: detect read errors when verifying graph chain
t5324: harmonize sha1/sha256 graph chain corruption
commit-graph: check mixed generation validation when loading chain file
commit-graph: factor out chain opening function
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"checkout --merge -- path" and "update-index --unresolve path" did
not resurrect conflicted state that was resolved to remove path,
but now they do.
* jc/unresolve-removal:
checkout: allow "checkout -m path" to unmerge removed paths
checkout/restore: add basic tests for --merge
checkout/restore: refuse unmerging paths unless checking out of the index
update-index: remove stale fallback code for "--unresolve"
update-index: use unmerge_index_entry() to support removal
resolve-undo: allow resurrecting conflicted state that resolved to deletion
update-index: do not read HEAD and MERGE_HEAD unconditionally
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The parameters to generate an error message have been corrected.
* ob/am-msgfix:
am: fix error message in parse_opt_show_current_patch()
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"git diff" learned diff.statNameWidth configuration variable, to
give the default width for the name part in the "--stat" output.
* ds/stat-name-width-configuration:
diff --stat: add config option to limit filename width
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Unused parameters in fsmonitor related code paths have been marked
as such.
* jk/fsmonitor-unused-parameter:
run-command: mark unused parameters in start_bg_wait callbacks
fsmonitor: mark unused hashmap callback parameters
fsmonitor/darwin: mark unused parameters in system callback
fsmonitor: mark unused parameters in stub functions
fsmonitor/win32: mark unused parameter in fsm_os__incompatible()
fsmonitor: mark some maybe-unused parameters
fsmonitor/win32: drop unused parameters
fsmonitor: prefer repo_git_path() to git_pathdup()
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The load_commit_graph_chain_fd_st() function will stop loading chains
when it sees an error. But if it has loaded any graph slice at all, it
will return it. This is a good thing for normal use (we use what data we
can, and this is just an optimization). But it's a bad thing for
"commit-graph verify", which should be careful about finding any
irregularities. We do complain to stderr with a warning(), but the
verify command still exits with a successful return code.
The new tests here cover corruption of both the base and tip slices of
the chain. The corruption of the base file already works (it is the
first file we look at, so when we see the error we return NULL). The
"tip" case is what is fixed by this patch (it complains to stderr but
still returns the base slice).
Likewise the existing tests for corruption of the commit-graph-chain
file itself need to be updated. We already exited non-zero correctly for
the "base" case, but the "tip" case can now do so, too.
Note that this also causes us to adjust a test later in the file that
similarly corrupts a tip (though confusingly the test script calls this
"base"). It checks stderr but erroneously expects the whole "verify"
command to exit with a successful code.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Because it's OK to not have a graph file at all, the graph_verify()
function needs to tell the difference between a missing file and a real
error. So when loading a traditional graph file, we call
open_commit_graph() separately from load_commit_graph_chain_fd_st(), and
don't complain if the first one fails with ENOENT.
When the function learned about chain files in 3da4b609bb (commit-graph:
verify chains with --shallow mode, 2019-06-18), we couldn't be as
careful, since the only way to load a chain was with
read_commit_graph_one(), which did both the open/load as a single unit.
So we'll miss errors in chain files we load, thinking instead that there
was just no chain file at all.
Note that we do still report some of these problems to stderr, as the
loading function calls error() and warning(). But we'd exit with a
successful exit code, which is wrong.
We can fix that by using the recently split open/load functions for
chains. That lets us treat the chain file just like a single file with
respect to error handling here.
An existing test (from 3da4b609bb) shows off the problem; we were
expecting "commit-graph verify" to report success, but that makes no
sense. We did not even verify the contents of the graph data, because we
couldn't load it! I don't think this was an intentional exception, but
rather just the test covering what happened to occur.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code to keep track of existing packs in the repository while
repacking has been refactored.
* tb/repack-existing-packs-cleanup:
builtin/repack.c: extract common cruft pack loop
builtin/repack.c: avoid directly inspecting "util"
builtin/repack.c: store existing cruft packs separately
builtin/repack.c: extract `has_existing_non_kept_packs()`
builtin/repack.c: extract redundant pack cleanup for existing packs
builtin/repack.c: extract redundant pack cleanup for --geometric
builtin/repack.c: extract marking packs for deletion
builtin/repack.c: extract structure to store existing packs
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The argument order was incorrect. This was introduced by 246cac8505
(i18n: turn even more messages into "cannot be used together" ones,
2022-01-05).
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git update-index" learns "--show-index-version" to inspect
the index format version used by the on-disk index file.
* jc/update-index-show-index-version:
test-tool: retire "index-version"
update-index: add --show-index-version
update-index doc: v4 is OK with JGit and libgit2
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Update "git maintainance" timers' implementation based on systemd
timers to work with WSL.
* js/systemd-timers-wsl-fix:
maintenance(systemd): support the Windows Subsystem for Linux
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The start_bg_command() function takes a callback to tell when the
background-ed process is "ready". The callback receives the
child_process struct as well as an extra void pointer. But curiously,
neither of the two users of this interface look at either parameter!
This makes some sense. The only non-test user of the API is fsmonitor,
which uses fsmonitor_ipc__get_state() to connect to a single global
fsmonitor daemon (i.e., the one we just started!).
So we could just drop these parameters entirely. But it seems like a
pretty reasonable interface for the "wait" callback to have access to
the details of the spawned process, and to have room for passing extra
data through a void pointer. So let's leave these in place but mark the
unused ones so that -Wunused-parameter does not complain.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Like many hashmap comparison functions, our cookies_cmp() does not look
at its extra void data parameter. This should have been annotated in
02c3c59e62 (hashmap: mark unused callback parameters, 2022-08-19), but
this new case was added around the same time (plus fsmonitor is not
built at all on Linux, so it is easy to miss there).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's a bit of conditionally-compiled code in fsmonitor, so some
function parameters may be unused depending on the build options:
- in fsmonitor--daemon.c's try_to_run_foreground_daemon(), we take a
detach_console argument, but it's only used on Windows. This seems
intentional (and not mistakenly missing other platforms) based on
the discussion in c284e27ba7 (fsmonitor--daemon: implement 'start'
command, 2022-03-25), which introduced it.
- in fsmonitor-setting.c's check_for_incompatible(), we pass the "ipc"
flag down to the system-specific fsm_os__incompatible() helper. But
we can only do so if our platform has such a helper.
In both cases we can mark the argument as MAYBE_UNUSED. That annotates
it enough to suppress the compiler's -Wunused-parameter warning, but
without making it impossible to use the variable, as a regular UNUSED
annotation would.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git grep -e A --no-or -e B" is accepted, even though the negation
of "or" did not mean anything, which has been tightened.
* rs/grep-no-no-or:
grep: reject --no-or
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Add new configuration option diff.statNameWidth=<width> that is equivalent
to the command-line option --stat-name-width=<width>, but it is ignored
by format-patch. This follows the logic established by the already
existing configuration option diff.statGraphWidth=<width>.
Limiting the widths of names and graphs in the --stat output makes sense
for interactive work on wide terminals with many columns, hence the support
for these configuration options. They don't affect format-patch because
it already adheres to the traditional 80-column standard.
Update the documentation and add more tests to cover new configuration
option diff.statNameWidth=<width>. While there, perform a few minor code
and whitespace cleanups here and there, as spotted.
Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Simplify use of parse-options API a bit.
* rs/name-rev-use-opt-hidden-bool:
name-rev: use OPT_HIDDEN_BOOL for --peel-tag
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Simplify use of parse-options API a bit.
* rs/grep-parseopt-simplify:
grep: use OPT_INTEGER_F for --max-depth
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When generating the list of packs to store in a MIDX (when given the
`--write-midx` option), we include any cruft packs both during
--geometric and non-geometric repacks.
But the rules for when we do and don't have to check whether any of
those cruft packs were queued for deletion differ slightly between the
two cases.
But the two can be unified, provided there is a little bit of extra
detail added in the comment to clarify when it is safe to avoid checking
for any pending deletions (and why it is OK to do so even when not
required).
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `->util` field corresponding to each string_list_item is used to
track the existence of some pack at the beginning of a repack operation
was originally intended to be used as a bitfield.
This bitfield tracked:
- (1 << 0): whether or not the pack should be deleted
- (1 << 1): whether or not the pack is cruft
The previous commit removed the use of the second bit, but a future
patch (from a different series than this one) will introduce a new use
of it.
So we could stop treating the util pointer as a bitfield and instead
start treating it as if it were a boolean. But this would require some
backtracking when that later patch is applied.
Instead, let's avoid touching the ->util field directly, and instead
introduce convenience functions like:
- pack_mark_for_deletion()
- pack_is_marked_for_deletion()
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Jeff King <peff@peff.net>
Helped-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When repacking with the `--write-midx` option, we invoke the function
`midx_included_packs()` in order to produce the list of packs we want to
include in the resulting MIDX.
This list is comprised of:
- existing .keep packs
- any pack(s) which were written earlier in the same process
- any unchanged packs when doing a `--geometric` repack
- any cruft packs
Prior to this patch, we stored pre-existing cruft and non-cruft packs
together (provided those packs are non-kept). This meant we needed an
additional bit to indicate which non-kept pack(s) were cruft versus
those that aren't.
But alternatively we can store cruft packs in a separate list, avoiding
the need for this extra bit, and simplifying the code below.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When there is:
- at least one pre-existing packfile (which is not marked as kept),
- repacking with the `-d` flag, and
- not doing a cruft repack
, then we pass a handful of additional options to the inner
`pack-objects` process, like `--unpack-unreachable`,
`--keep-unreachable`, and `--pack-loose-unreachable`, in addition to
marking any packs we just wrote for promisor remotes as kept in-core
(with `--keep-pack`, as opposed to the presence of a ".keep" file on
disk).
Because we store both cruft and non-cruft packs together in the same
`existing.non_kept_packs` list, it suffices to check its `nr` member to
see if it is zero or not.
But a following change will store cruft- and non-cruft packs separately,
meaning this check would break as a result. Prepare for this by
extracting this part of the check into a new helper function called
`has_existing_non_kept_packs()`.
This patch does not introduce any functional changes, but prepares us to
make a more isolated change in a subsequent patch.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To remove redundant packs at the end of a repacking operation, Git uses
its `remove_redundant_pack()` function in a loop over the set of
pre-existing, non-kept packs.
In a later commit, we will split this list into two, one for
pre-existing cruft pack(s), and another for non-cruft pack(s). Prepare
for this by factoring out the routine to loop over and delete redundant
packs into its own function.
Instead of calling `remove_redundant_pack()` directly, we now will call
`remove_redundant_existing_packs()`, which itself dispatches a call to
`remove_redundant_packs_1()`. Note that the geometric repacking code
will still call `remove_redundant_pack()` directly, but see the previous
commit for more details.
Having `remove_redundant_packs_1()` exist as a separate function may
seem like overkill in this patch. However, a later patch will call
`remove_redundant_packs_1()` once over two separate lists, so this
refactoring sets us up for that.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To reduce the complexity of the already quite-long `cmd_repack()`
implementation, extract out the parts responsible for deleting redundant
packs from a geometric repack out into its own sub-routine.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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At the end of a repack (when given `-d`), Git attempts to remove any
packs which have been made "redundant" as a result of the repacking
operation. For example, an all-into-one (`-A` or `-a`) repack makes
every pre-existing pack which is not marked as kept redundant. Geometric
repacks (with `--geometric=<n>`) make any packs which were rolled up
redundant, and so on.
But before deleting the set of packs we think are redundant, we first
check to see whether or not we just wrote a pack which is identical to
any one of the packs we were going to delete. When this is the case, Git
must avoid deleting that pack, since it matches a pack we just wrote
(so deleting it may cause the repository to become corrupt).
Right now we only process the list of non-kept packs in a single pass.
But a future change will split the existing non-kept packs further into
two lists: one for cruft packs, and another for non-cruft packs.
Factor out this routine to prepare for calling it twice on two separate
lists in a future patch.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The repack machinery needs to keep track of which packfiles were present
in the repository at the beginning of a repack, segmented by whether or
not each pack is marked as kept.
The names of these packs are stored in two `string_list`s, corresponding
to kept- and non-kept packs, respectively. As a consequence, many
functions within the repack code need to take both `string_list`s as
arguments, leading to code like this:
ret = write_cruft_pack(&cruft_po_args, packtmp, pack_prefix,
cruft_expiration, &names,
&existing_nonkept_packs, /* <- */
&existing_kept_packs); /* <- */
Wrap up this pair of `string_list`s into a single structure that stores
both. This saves us from having to pass both string lists separately,
and prepares for adding additional fields to this structure.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix-up for a topic that already has graduated.
* bc/more-git-var:
var: avoid a segmentation fault when `HOME` is unset
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Fix-up new-ish code to support OpenSSL EVP API.
* ew/hash-with-openssl-evp:
treewide: fix various bugs w/ OpenSSL 3+ EVP API
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Unused parameters to functions are marked as such, and/or removed,
in order to bring us closer to -Wunused-parameter clean.
* jk/unused-post-2.42-part2:
parse-options: mark unused parameters in noop callback
interpret-trailers: mark unused "unset" parameters in option callbacks
parse-options: add more BUG_ON() annotations
merge: do not pass unused opt->value parameter
parse-options: mark unused "opt" parameter in callbacks
parse-options: prefer opt->value to globals in callbacks
checkout-index: delay automatic setting of to_tempfile
format-patch: use OPT_STRING_LIST for to/cc options
merge: simplify parsing of "-n" option
merge: make xopts a strvec
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"git update-index --index-version N" is used to set the index format
version to a specific version, but there was no way to query the
current version used in the on-disk index file.
Teach the command a new "--show-index-version" option, and also
teach the "--index-version N" option to report what the version was
when run with the "--verbose" option.
Helped-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running in the Windows Subsystem for Linux (WSL), it is usually
necessary to use the Git Credential Manager for authentication when
performing the background fetches.
This requires interoperability between the Windows Subsystem for Linux
and the Windows host to work, which uses so-called vsocks, i.e. sockets
intended for communcations between virtual machines and the host they
are running on.
However, when Git is configured to run background maintenance via
`systemd`, the address families available to those maintenance processes
are restricted, and did not include `AF_VSOCK`. This leads to problems
e.g. when a background fetch tries to access github.com:
systemd[437]: Starting Optimize Git repositories data...
git[747387]: WSL (747387) ERROR: UtilBindVsockAnyPort:285: socket failed 97
git[747381]: fatal: could not read Username for 'https://github.com': No such device or address
git[747381]: error: failed to prefetch remotes
git[747381]: error: task 'prefetch' failed
systemd[437]: git-maintenance@hourly.service: Main process exited, code=exited, status=1/FAILURE
systemd[437]: git-maintenance@hourly.service: Failed with result 'exit-code'.
systemd[437]: Failed to start Optimize Git repositories data.
Address this (pun intended) by adding the `AF_VSOCK` address family to
the allow list.
This fixes https://github.com/microsoft/git/issues/604.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git format-patch --rfc --subject-prefix=<foo>" used to ignore the
"--subject-prefix" option and used "[RFC PATCH]"; now we will add
"RFC" prefix to whatever subject prefix is specified.
This is a backward compatible change that may deserve a note.
* dd/format-patch-rfc-updates:
format-patch: --rfc honors what --subject-prefix sets
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Unused parameters to functions are marked as such, and/or removed,
in order to bring us closer to -Wunused-parameter clean.
* jk/unused-post-2.42: (22 commits)
update-ref: mark unused parameter in parser callbacks
gc: mark unused descriptors in scheduler callbacks
bundle-uri: mark unused parameters in callbacks
fetch: mark unused parameter in ref_transaction callback
credential: mark unused parameter in urlmatch callback
grep: mark unused parmaeters in pcre fallbacks
imap-send: mark unused parameters with NO_OPENSSL
worktree: mark unused parameters in noop repair callback
negotiator/noop: mark unused callback parameters
add-interactive: mark unused callback parameters
grep: mark unused parameter in output function
test-trace2: mark unused argv/argc parameters
trace2: mark unused config callback parameter
trace2: mark unused us_elapsed_absolute parameters
stash: mark unused parameter in diff callback
ls-tree: mark unused parameter in callback
commit-graph: mark unused data parameters in generation callbacks
worktree: mark unused parameters in each_ref_fn callback
pack-bitmap: mark unused parameters in show_object callback
ref-filter: mark unused parameters in parser callbacks
...
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Use of --max-pack-size to allow multiple packfiles to be created is
now supported even when we are sending unreachable objects to cruft
packs.
* tb/multi-cruft-pack:
Documentation/gitformat-pack.txt: drop mixed version section
Documentation/gitformat-pack.txt: remove multi-cruft packs alternative
builtin/pack-objects.c: support `--max-pack-size` with `--cruft`
builtin/pack-objects.c: remove unnecessary strbuf_reset()
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Since 3e230fa1b2 (grep: use parseopt, 2009-05-07) git grep has been
accepting the option --no-or. It does the same as --or: nothing.
That's confusing and unintended. Forbid negating --or.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code introduced in 576a37fccbf (var: add attributes files locations,
2023-06-27) paid careful attention to use `xstrdup()` for pointers known
never to be `NULL`, and `xstrdup_or_null()` otherwise.
One spot was missed, though: `git_attr_global_file()` can return `NULL`,
when the `HOME` variable is not set (and neither `XDG_CONFIG_HOME`), a
scenario not too uncommon in certain server scenarios.
Fix this, and add a test case to avoid future regressions.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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a91f453f64 (grep: Add --max-depth option., 2009-07-22) added the option
--max-depth, defining it using a positional struct option initializer of
type OPTION_INTEGER. It also sets defval to 1 for some reason, but that
value would only be used if the flag PARSE_OPT_OPTARG was given.
Use the macro OPT_INTEGER_F instead to standardize the definition and
specify only the necessary values. This also normalizes argh to N_("n")
as a side-effect, which is OK.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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adfc1857bd (describe: fix --contains when a tag is given as input,
2013-07-18) added the option --peel-tag, defining it using a positional
struct option initializer and a comment indicating that it's intended to
be a hidden OPT_BOOL. 4741edd549 (Remove deprecated OPTION_BOOLEAN for
parsing arguments, 2013-08-03) added the macro OPT_HIDDEN_BOOL, which
allows to express this more succinctly. Use it.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are a few parse-option callbacks that do not look at their "unset"
parameters, but also do not set PARSE_OPT_NONEG. At first glance this
seems like a bug, as we'd ignore "--no-if-exists", etc.
But they do work fine, because when "unset" is true, then "arg" is NULL.
And all three functions pass "arg" on to helper functions which do the
right thing with the NULL.
Note that this shortcut would not be correct if any callback used
PARSE_OPT_NOARG (in which case "arg" would be NULL but "unset" would be
false). But none of these do.
So the code is fine as-is. But we'll want to mark the unused "unset"
parameters to quiet -Wunused-parameter. I've also added a comment to
make this rather subtle situation more explicit.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These callbacks are similar to the ones touched by 517fe807d6 (assert
NOARG/NONEG behavior of parse-options callbacks, 2018-11-05), but were
either missed in that commit (the one in add.c) or were added later (the
one in log.c).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The option_parse_strategy() callback does not look at opt->value;
instead it calls append_strategy(), which manipulates the global
use_strategies array directly. But the OPT_CALLBACK declaration assigns
"&use_strategies" to opt->value.
One could argue this is good, as it tells the reader what we generally
expect the callback to do. But it is also bad, because it can mislead
you into thinking that swapping out "&use_strategies" there might have
any effect. Let's switch it to pass NULL (which is what every other
"does not bother to look at opt->value" callback does). If you want to
know what the callback does, it's easy to read the function itself.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The previous commit argued that parse-options callbacks should try to
use opt->value rather than touching globals directly. In some cases,
however, that's awkward to do. Some callbacks touch multiple variables,
or may even just call into an abstracted function that does so.
In some of these cases we _could_ convert them by stuffing the multiple
variables into a single struct and passing the struct pointer through
opt->value. But that may make other parts of the code less readable,
as the struct relationship has to be mentioned everywhere.
Let's just accept that these cases are special and leave them as-is. But
we do need to mark their "opt" parameters to satisfy -Wunused-parameter.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have several parse-options callbacks that ignore their "opt"
parameters entirely. This is a little unusual, as we'd normally put the
result of the parsing into opt->value. In the case of these callbacks,
though, they directly manipulate global variables instead (and in
most cases the caller sets opt->value to NULL in the OPT_CALLBACK
declaration).
The immediate symptom we'd like to deal with is that the unused "opt"
variables trigger -Wunused-parameter. But how to fix that is debatable.
One option is to annotate them with UNUSED. But another is to have the
caller pass in the appropriate variable via opt->value, and use it. That
has the benefit of making the callbacks reusable (in theory at least),
and makes it clear from the OPT_CALLBACK declaration which variables
will be affected (doubly so for the cases in builtin/fast-export.c,
where we do set opt->value, but it is completely ignored!).
The slight downside is that we lose type safety, since they're now
passing through void pointers.
I went with the "just use them" approach here. The loss of type safety
is unfortunate, but that is already an issue with most of the other
callbacks. If we want to try to address that, we should do so more
consistently (and this patch would prepare these callbacks for whatever
we choose to do there).
Note that in the cases in builtin/fast-export.c, we are passing
anonymous enums. We'll have to give them names so that we can declare
the appropriate pointer type within the callbacks.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Using --stage=all requires writing to tempfiles, since we cannot put
multiple stages into a single file. So --stage=all implies --temp.
But we do so by setting to_tempfile in the options callback for --stage,
rather than after all options have been parsed. This leads to two bugs:
1. If you run "checkout-index --stage=all --stage=2", this should not
imply --temp, but it currently does. The callback cannot just unset
to_tempfile when it sees the "2" value, because it no longer knows
if its value was from the earlier --stage call, or if the user
specified --temp explicitly.
2. If you run "checkout-index --stage=all --no-temp", the --no-temp
will overwrite the earlier implied --temp. But this mode of
operation cannot work, and the command will fail with "<path>
already exists" when trying to write the higher stages.
We can fix both by lazily setting to_tempfile. We'll make it a tristate,
with -1 as "not yet given", and have --stage=all enable it only after
all options are parsed. Likewise, after all options are parsed we can
detect and reject the bogus "--no-temp" case.
Note that this does technically change the behavior for "--stage=all
--no-temp" for paths which have only one stage present (which
accidentally worked before, but is now forbidden). But this behavior was
never intended, and you'd have to go out of your way to try to trigger
it.
The new tests cover both cases, as well the general "--stage=all implies
--temp", as most of the other tests explicitly say "--temp". Ironically,
the test "checkout --temp within subdir" is the only one that _doesn't_
use "--temp", and so was implicitly covering this case. But it seems
reasonable to have a more explicit test alongside the other related
ones.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git format-patch" learns a way to feed cover letter description,
that (1) can be used on detached HEAD where there is no branch
description available, and (2) also can override the branch
description if there is one.
* ob/format-patch-description-file:
format-patch: add --description-file option
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"git diff --no-such-option" and other corner cases around the exit
status of the "diff" command has been corrected.
* jk/diff-result-code-cleanup:
diff: drop useless "status" parameter from diff_result_code()
diff: drop useless return values in git-diff helpers
diff: drop useless return from run_diff_{files,index} functions
diff: die when failing to read index in git-diff builtin
diff: show usage for unknown builtin_diff_files() options
diff-files: avoid negative exit value
diff: spell DIFF_INDEX_CACHED out when calling run_diff_index()
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The OpenSSL 3+ EVP API for SHA-* cannot support our prior use cases
supported by other SHA-* implementations. It has the following
differences:
1. ->init_fn is required before all use
2. struct assignments don't work and requires ->clone_fn
3. can't support ->update_fn after ->final_*fn
While fixing cases 1 and 2 is merely the matter of calling ->init_fn and
->clone_fn as appropriate, fixing case 3 requires calling ->final_*fn on
a temporary context that's cloned from the primary context.
Reported-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/ZPCL11k38PXTkFga@debian.me/
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Fixes: 3e440ea0aba0 ("sha256: avoid functions deprecated in OpenSSL 3+")
Fixes: bda9c12073e7 ("avoid SHA-1 functions deprecated in OpenSSL 3+")
Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The to_callback() and cc_callback() functions are identical to the
generic parse_opt_string_list() function (except that they don't handle
optional arguments, but that's OK because their callers do not use the
OPTARG flag).
Let's simplify the code by using OPT_STRING_LIST.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "-n" option is implemented by an option callback, as it is really a
"reverse bool". If given, it sets show_diffstat to 0. In theory, when
negated, it would set the same flag to 1. But it's not possible to
trigger that, since short options cannot be negated.
So in practice this is really just a SET_INT to 0. Let's use that
instead, which shortens the code.
Note that negation here would do the wrong thing (as with any SET_INT
with a value of "0"). We could specify PARSE_OPT_NONEG to future-proof
ourselves against somebody adding a long option name (which would make
it possible to negate). But there's not much point:
1. Nobody is going to do that, because the negated form already
exists, and is called "--stat" (which is defined separately so that
"--no-stat" works).
2. If they did, the BUG() check added by 3284b93862 (parse-options:
disallow negating OPTION_SET_INT 0, 2023-08-08) will catch it (and
that check is smart enough to realize that our short-only option is
OK).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "xopts" variable uses a custom array with ALLOC_GROW(). Using a
strvec simplifies things a bit. We need fewer variables, and we can also
ditch our custom parseopt callback in favor of OPT_STRVEC().
As a bonus, this means that "--no-strategy-option", which was previously
a silent noop, now does something useful: like other list-like options,
it will clear the list of -X options seen so far. This matches the
behavior of revert/cherry-pick, which made the same change in fb60b9f37f
(sequencer: use struct strvec to store merge strategy options,
2023-04-10).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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