--ours, --theirs, and --union are already supported in `git merge-file`
for automatically resolving conflicts in favor of one version or the
other, instead of leaving conflict markers in the file. Support them in
`git apply -3` as well because the two commands do the same kind of
file-level merges.
In case in the future --ours, --theirs, and --union gain a meaning
outside of three-way-merges, they do not imply --3way but rather must be
specified alongside it.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make our codebase compilable with the -Werror=unused-parameter
option.
* jk/unused-parameters:
CodingGuidelines: mention -Wunused-parameter and UNUSED
config.mak.dev: enable -Wunused-parameter by default
compat: mark unused parameters in win32/mingw functions
compat: disable -Wunused-parameter in win32/headless.c
compat: disable -Wunused-parameter in 3rd-party code
t-reftable-readwrite: mark unused parameter in callback function
gc: mark unused config parameter in virtual functions
More trace2 events at key points on push and fetch code paths have
been added.
* js/fetch-push-trace2-annotation:
send-pack: add new tracing regions for push
fetch: add top-level trace2 regions
trace2: implement trace2_printf() for event target
This is needed to build things with -Werror=unused-parameter on a
platform without symbolic link support.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We provide custom malloc/free callbacks for the pcre library to use.
Those take an extra "data" parameter, but we don't use it. Back when
these were added in 513f2b0bbd (grep: make PCRE2 aware of custom
allocator, 2019-10-16), we only had MAYBE_UNUSED.
But these days we have UNUSED, which we should prefer, as it will
let the compiler inform us if the code changes to actually use the
parameters.
I also moved the annotations to come after the variable name, which is
how we typically spell it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "opts" parameter is always used, so marking it with MAYBE_UNUSED is
just confusing.
This annotation goes back to 41abfe15d9 (maintenance: add pack-refs
task, 2021-02-09), when it really was unused. Back then we did not have
the UNUSED macro that would complain if the code changed to use the
parameter. So when we started using it in bfc2f9eb8e (builtin/gc:
forward git-gc(1)'s `--auto` flag when packing refs, 2024-03-25), nobody
noticed.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A function that uses a parameter in one build may lose all uses of
the parameter in another build, depending on the configuration. A
workaround for such a case, MAYBE_UNUSED, should also be mentioned
when we recommend the use of UNUSED to our developers.
Keep the addition to the guideline short and document the criteria
to choose between UNUSED and MAYBE_UNUSED near their definition.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/unused-parameters:
CodingGuidelines: mention -Wunused-parameter and UNUSED
config.mak.dev: enable -Wunused-parameter by default
compat: mark unused parameters in win32/mingw functions
compat: disable -Wunused-parameter in win32/headless.c
compat: disable -Wunused-parameter in 3rd-party code
t-reftable-readwrite: mark unused parameter in callback function
gc: mark unused config parameter in virtual functions
The underlying machinery for "git diff-index" has long been made to
expand the sparse index as needed, but the command fully expanded
the sparse index upfront, which now has been taught not to do.
* ds/sparse-diff-index:
diff-index: integrate with the sparse index
Another test for reftable library ported to the unit test framework.
* cp/unit-test-reftable-block:
t-reftable-block: mark unused argv/argc
t-reftable-block: add tests for index blocks
t-reftable-block: add tests for obj blocks
t-reftable-block: add tests for log blocks
t-reftable-block: remove unnecessary variable 'j'
t-reftable-block: use xstrfmt() instead of xstrdup()
t-reftable-block: use block_iter_reset() instead of block_iter_close()
t-reftable-block: use reftable_record_key() instead of strbuf_addstr()
t-reftable-block: use reftable_record_equal() instead of check_str()
t-reftable-block: release used block reader
t: harmonize t-reftable-block.c with coding guidelines
t: move reftable/block_test.c to the unit testing framework
The code in the reftable library has been cleaned up by discarding
unused "generic" interface.
* ps/reftable-drop-generic:
reftable: mark unused parameters in empty iterator functions
reftable/generic: drop interface
t/helper: refactor to not use `struct reftable_table`
t/helper: use `hash_to_hex_algop()` to print hashes
t/helper: inline printing of reftable records
t/helper: inline `reftable_table_print()`
t/helper: inline `reftable_stack_print_directory()`
t/helper: inline `reftable_reader_print_file()`
t/helper: inline `reftable_dump_main()`
reftable/dump: drop unused `compact_stack()`
reftable/generic: move generic iterator code into iterator interface
reftable/iter: drop double-checking logic
reftable/stack: open-code reading refs
reftable/merged: stop using generic tables in the merged table
reftable/merged: rename `reftable_new_merged_table()`
reftable/merged: expose functions to initialize iterators
The command line prompt support used to be littered with bash-isms,
which has been corrected to work with more shells.
* ah/git-prompt-portability:
git-prompt: support custom 0-width PS1 markers
git-prompt: ta-da! document usage in other shells
git-prompt: don't use shell $'...'
git-prompt: add some missing quotes
git-prompt: replace [[...]] with standard code
git-prompt: don't use shell arrays
git-prompt: fix uninitialized variable
git-prompt: use here-doc instead of here-string
These unused parameters were marked in a68ec8683a (reftable: mark unused
parameters in virtual functions, 2024-08-17), but the functions were
moved to a new file in a parallel branch via f2406c81b9
(reftable/generic: move generic iterator code into iterator interface,
2024-08-22).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is conceptually the same as the cases in df9d638c24 (unit-tests:
ignore unused argc/argv, 2024-08-17), but this unit test was migrated
from the reftable tests in a parallel branch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now that -Wunused-parameter is on by default for DEVELOPER=1 builds,
people may trigger it, blocking their build. When it's a mistake for the
parameter to exist, the path forward is obvious: remove it. But
sometimes you need to suppress the warning, and the "UNUSED" mechanism
for that is specific to our project, so people may not know about it.
Let's put some advice in CodingGuidelines, including an example warning
message. That should help people who grep for the warning text after
seeing it from the compiler.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Having now removed or annotated all of the unused function parameters in
our code base, I found that each instance falls into one of three
categories:
1. ignoring the parameter is a bug (e.g., a function takes a ptr/len
pair, but ignores the length). Detecting these helps us find the
bugs.
2. the parameter is unnecessary (and usually left over from a
refactoring or earlier iteration of a patches series). Removing
these cleans up the code.
3. the function has to conform to a specific interface (because it's
used via a function pointer, or matches something on the other side
of an #ifdef). These ones are annoying, but annotating them with
UNUSED is not too bad (especially if the compiler tells you about
the problem promptly).
Certainly instances of (3) are more common than (1), but after finding
all of these, I think there were enough cases of (1) that it justifies
the work in annotating all of the (3)s.
And since the code base is now at a spot where we compile cleanly with
-Wunused-parameter, turning it on will make it the responsibility of
individual patch writers going forward.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The compat/ directory contains many stub functions, wrappers, and so on
that have to conform to a specific interface, but don't necessarily need
to use all of their parameters. Let's mark them to avoid complaints from
-Wunused-parameter.
This was done mostly via guess-and-check with the Windows build in
GitHub CI. I also confirmed that the win+VS build is similarly happy.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As with the files touched in the previous commit, win32/headless.c does
not include git-compat-util.h, so it doesn't have our UNUSED macro.
Unlike those ones, this is not third-party code, so it would not be a
big deal to modify it.
However, I'm not sure if including git-compat-util.h would create other
headaches (and I don't even have a machine to test this on; I'm relying
on Windows CI to compile it at all). Given how trivial the file is, and
that the unused parameters are not interesting (they are just
boilerplate for the wWinMain() function), we can just use the same trick
as the previous commit and disable the warnings via pragma.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We carry some vendored 3rd-party code in compat/ that does not build
cleanly with -Wunused-parameters. We could mark these with UNUSED, but
there are two reasons not to:
1. This is code imported from elsewhere, so we'd prefer to avoid
modifying it in an invasive way that could create conflicts if we
tried to pull in a new version.
2. These files don't include git-compat-util.h at all, so we'd need to
factor out (or repeat) our UNUSED macro.
In theory we could modify the build process to invoke the compiler with
the extra warning disabled for these files, but there are tricky corner
cases there (e.g., for NO_REGEX we cannot assume that the compiler
understands -Wno-unused-parameter as an option, so we'd have to use our
detect-compiler script).
Instead, let's rely on the gcc diagnostic #pragma. This is horribly
unportable, of course, but it should do what we want. Compilers which
don't understand this particular pragma should ignore it (per the
standard), and compilers which do care about "-Wunused-parameter" will
hopefully respect it, even if they are not gcc (e.g., clang does).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This spot was originally marked in in 4695c3f3a9 (reftable: mark unused
parameters in virtual functions, 2024-08-17), but was copied in
5b539a5361 (t: move reftable/readwrite_test.c to the unit testing
framework, 2024-08-13).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit d1ae15d68b (builtin/gc: refactor to read config into structure,
2024-08-16) added a new parameter to the maintenance_task virtual
functions, but most of them don't need to look at it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In some cases, a user may be generating a patch for an old commit which
now has an out-of-date author or other identity. For example, consider a
team member who contributes to an internal fork of an upstream project,
but leaves before this change is submitted upstream.
In this case, the team members company address may no longer be valid,
and will thus bounce when sending email.
This can be manually avoided by editing the generated patch files, or by
carefully using --suppress-<cc|to> options. This requires a lot of
manual intervention and is easy to forget.
Git has support for mapping old email addresses and names to a canonical
name and address via the .mailmap file (and its associated mailmap.file,
mailmap.blob, and log.mailmap options).
Teach git send-email to enable mailmap support for all addresses. This
ensures that addresses point to the canonical real name and email
address.
Add the sendemail.mailmap configuration option and its associated
--mailmap (and --use-mailmap for compatibility with git log) options.
For now, the default behavior is to disable the mailmap in order to
avoid any surprises or breaking any existing setups.
These options support per-identity configuration via the
sendemail.identity configuration blocks. This enables identity-specific
configuration in cases where users may not want to enable support.
In addition, support send-email specific mailmap data via
sendemail.mailmap.file, sendemail.mailmap.blob and their
identity-specific variants.
The intention of these options is to enable mapping addresses which are
no longer valid to a current project or team maintainer. Such mappings
may change the actual person being referred to, and may not make sense
in a traditional mailmap file which is intended for updating canonical
name and address for the same individual.
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The git check-mailmap command reads the mailmap from either the default
.mailmap location and then from the mailmap.blob and mailmap.file
configurations.
A following change to git send-email will want to support new
configuration options based on the configured identity. The
identity-based configuration and options only make sense in the context
of git send-email.
Expose the read_mailmap_file and read_mailmap_blob functions from
mailmap.c. Teach git check-mailmap the --mailmap-file and
--mailmap-blob options which load the additional mailmap sources.
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git check-mailmap splits each provided contact using split_ident_line.
This function requires that the contact either be of the form "Name
<user@host>" or of the form "<user@host>". In particular, if the mail
portion of the contact is not surrounded by angle brackets,
split_ident_line will reject it.
This results in git check-mailmap rejecting attempts to translate simple
email addresses:
$ git check-mailmap user@host
fatal: unable to parse contact: user@host
This limits the usability of check-mailmap as it requires placing angle
brackets around plain email addresses.
In particular, attempting to use git check-mailmap to support mapping
addresses in git send-email is not straight forward. The sanitization
and validation functions in git send-email strip angle brackets from
plain email addresses. It is not trivial to add brackets prior to
invoking git check-mailmap.
Instead, modify check_mailmap() to allow such strings as contacts. In
particular, treat any line which cannot be split by split_ident_line as
a simple email address.
No attempt is made to actually parse the address line, or validate that
it is actually an email address. Implementing such validation is not
trivial. Besides, we weren't validating the address between angle
brackets before anyways.
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The synopsis says --regexp=<regexp> but the --regexp option is a
Boolean that says "the name given is not literal, but a pattern to
match the name".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git config --get-all foo.bar" shows all values for the foo.bar
variable, but does not give the variable name in each output entry.
Hence it is equivalent to "git config get --all foo.bar", without
"--show-names", in the more modern syntax.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git for-each-ref' learned a new "--format" atom to find the branch
that the history leading to a given commit "%(is-base:<commit>)" is
likely based on.
* ds/for-each-ref-is-base:
p1500: add is-base performance tests
for-each-ref: add 'is-base' token
commit: add gentle reference lookup method
commit-reach: add get_branch_base_for_tip
"git send-email" learned "--translate-aliases" option that reads
addresses from the standard input and emits the result of applying
aliases on them to the standard output.
* jk/send-email-translate-aliases:
send-email: teach git send-email option to translate aliases
t9001-send-email.sh: update alias list used for pine test
t9001-send-email.sh: fix quoting for mailrc --dump-aliases test
Mark unused parameters as UNUSED to squelch -Wunused warnings.
* jk/mark-unused-parameters:
t-hashmap: stop calling setup() for t_intern() test
scalar: mark unused parameters in dummy function
daemon: mark unused parameters in non-posix fallbacks
setup: mark unused parameter in config callback
test-mergesort: mark unused parameters in trivial callback
t-hashmap: mark unused parameters in callback function
reftable: mark unused parameters in virtual functions
reftable: drop obsolete test function declarations
reftable: ignore unused argc/argv in test functions
unit-tests: ignore unused argc/argv
t/helper: mark more unused argv/argc arguments
oss-fuzz: mark unused argv/argc argument
refs: mark unused parameters in do_for_each_reflog_helper()
refs: mark unused parameters in ref_store fsck callbacks
update-ref: mark more unused parameters in parser callbacks
imap-send: mark unused parameter in ssl_socket_connect() fallback
Drop unused parameters from functions.
* jk/drop-unused-parameters:
diff-lib: drop unused index argument from get_stat_data()
ref-filter: drop unused parameters from email_atom_option_parser()
pack-bitmap: drop unused parameters from select_pseudo_merges()
pack-bitmap: load writer config from repository parameter
refs: drop some unused parameters from create_symref_lock()
