git/ident.c, branch v2.46.2

ident: add casts for fallback name and GECOS

2024-06-07T17:30:51Z

In `xgetpwuid_self()`, we return a fallback identity when it was not possible to look up the current identity. This fallback identity needs to be internal and must never be written to by the calles as specified by getpwuid(3P). As both the `pw_name` and `pw_gecos` fields are marked as non-constant though, it will cause a warning to assign constant strings to them once compiling with `-Wwrite-strings`. Add explicit casts to avoid the warning. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano

Merge branch 'bc/ident-dot-is-no-longer-crud-letter'

2023-08-09T23:18:15Z

Exclude "." from the set of characters to be removed from the beginning and the end of the human-readable name. * bc/ident-dot-is-no-longer-crud-letter: ident: don't consider '.' a crud

ident: don't consider '.' a crud

2023-08-02T16:50:52Z

When we process a user's name (as in user.name), we strip all leading and trailing crud from it. Right now, we consider a dot a crud character, and strip it off. However, this is unsuitable for many personal names because humans frequently have abbreviated suffixes, such as "Jr." or "Sr." at the end of their names, and this corrupts them. Some other users may wish to use an abbreviated name or initial, which will pose a problem especially in cultures that write the family name first, followed by the personal name. Since the current approach causes lots of practical problems, let's avoid it by no longer considering a dot to be crud. Note that "." in the name forces the entire name to be quoted to please mailers, but stripping "." only at the beginning and the end does not help a name with "." in the middle (like "brian m. carlson") so this change will not make it much worse. A name like "Given Family, Jr." that did not have to be quoted now would need to be, in order to be placed on the e-mail headers, though. This is based on a weather-balloon patch by Jeff King sent in Aug 2021 https://lore.kernel.org/git/YSKm8Q8nyTavQaox@coredump.intra.peff.net/ Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano

config: add ctx arg to config_fn_t

2023-06-28T21:06:39Z

Add a new "const struct config_context *ctx" arg to config_fn_t to hold additional information about the config iteration operation. config_context has a "struct key_value_info kvi" member that holds metadata about the config source being read (e.g. what kind of config source it is, the filename, etc). In this series, we're only interested in .kvi, so we could have just used "struct key_value_info" as an arg, but config_context makes it possible to add/adjust members in the future without changing the config_fn_t signature. We could also consider other ways of organizing the args (e.g. moving the config name and value into config_context or key_value_info), but in my experiments, the incremental benefit doesn't justify the added complexity (e.g. a config_fn_t will sometimes invoke another config_fn_t but with a different config value). In subsequent commits, the .kvi member will replace the global "struct config_reader" in config.c, making config iteration a global-free operation. It requires much more work for the machinery to provide meaningful values of .kvi, so for now, merely change the signature and call sites, pass NULL as a placeholder value, and don't rely on the arg in any meaningful way. Most of the changes are performed by contrib/coccinelle/config_fn_ctx.pending.cocci, which, for every config_fn_t: - Modifies the signature to accept "const struct config_context *ctx" - Passes "ctx" to any inner config_fn_t, if needed - Adds UNUSED attributes to "ctx", if needed Most config_fn_t instances are easily identified by seeing if they are called by the various config functions. Most of the remaining ones are manually named in the .cocci patch. Manual cleanups are still needed, but the majority of it is trivial; it's either adjusting config_fn_t that the .cocci patch didn't catch, or adding forward declarations of "struct config_context ctx" to make the signatures make sense. The non-trivial changes are in cases where we are invoking a config_fn_t outside of config machinery, and we now need to decide what value of "ctx" to pass. These cases are: - trace2/tr2_cfg.c:tr2_cfg_set_fl() This is indirectly called by git_config_set() so that the trace2 machinery can notice the new config values and update its settings using the tr2 config parsing function, i.e. tr2_cfg_cb(). - builtin/checkout.c:checkout_main() This calls git_xmerge_config() as a shorthand for parsing a CLI arg. This might be worth refactoring away in the future, since git_xmerge_config() can call git_default_config(), which can do much more than just parsing. Handle them by creating a KVI_INIT macro that initializes "struct key_value_info" to a reasonable default, and use that to construct the "ctx" arg. Signed-off-by: Glen Choo Signed-off-by: Junio C Hamano

ident.h: move ident-related declarations out of cache.h

2023-02-24T01:25:29Z

These functions were all defined in a separate ident.c already, so create ident.h and move the declarations into that file. Signed-off-by: Elijah Newren Signed-off-by: Junio C Hamano

git-compat-util.h: use "UNUSED", not "UNUSED(var)"

2022-09-01T17:49:48Z

As reported in [1] the "UNUSED(var)" macro introduced in 2174b8c75de (Merge branch 'jk/unused-annotation' into next, 2022-08-24) breaks coccinelle's parsing of our sources in files where it occurs. Let's instead partially go with the approach suggested in [2] of making this not take an argument. As noted in [1] "coccinelle" will ignore such tokens in argument lists that it doesn't know about, and it's less of a surprise to syntax highlighters. This undoes the "help us notice when a parameter marked as unused is actually use" part of 9b240347543 (git-compat-util: add UNUSED macro, 2022-08-19), a subsequent commit will further tweak the macro to implement a replacement for that functionality. 1. https://lore.kernel.org/git/220825.86ilmg4mil.gmgdl@evledraar.gmail.com/ 2. https://lore.kernel.org/git/220819.868rnk54ju.gmgdl@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano

config: mark unused callback parameters

2022-08-19T19:18:55Z

The callback passed to git_config() must conform to a particular interface. But most callbacks don't actually look at the extra "void *data" parameter. Let's mark the unused parameters to make -Wunused-parameter happy. Note there's one unusual case here in get_remote_default() where we actually ignore the "value" parameter. That's because it's only checking whether the option is found at all, and not parsing its value. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

ident: rename commit_rewrite_person() to apply_mailmap_to_header()

2022-07-18T19:55:53Z

commit_rewrite_person() takes a commit buffer and replaces the idents in the header with their canonical versions using the mailmap mechanism. The name "commit_rewrite_person()" is misleading as it doesn't convey what kind of rewrite are we going to do to the buffer. It also doesn't clearly mention that the function will limit itself to the header part of the buffer. The new name, "apply_mailmap_to_header()", expresses the functionality of the function pretty clearly. We intend to use apply_mailmap_to_header() in git-cat-file to replace idents in the headers of commit and tag object buffers. So, we will be extending this function to take tag objects buffer as well and replace idents on the tagger header using the mailmap mechanism. Mentored-by: Christian Couder Mentored-by: John Cai Signed-off-by: Siddharth Asthana Signed-off-by: Junio C Hamano

ident: move commit_rewrite_person() to ident.c

2022-07-18T19:55:53Z

commit_rewrite_person() and rewrite_ident_line() are static functions defined in revision.c. Their usages are as follows: - commit_rewrite_person() takes a commit buffer and replaces the author and committer idents with their canonical versions using the mailmap mechanism - rewrite_ident_line() takes author/committer header lines from the commit buffer and replaces the idents with their canonical versions using the mailmap mechanism. This patch moves commit_rewrite_person() and rewrite_ident_line() to ident.c which contains many other functions related to idents like split_ident_line(). By moving commit_rewrite_person() to ident.c, we also intend to use it in git-cat-file to replace committer and author idents from the headers to their canonical versions using the mailmap mechanism. The function is moved as is for now to make it clear that there are no other changes, but it will be renamed in a following commit. Mentored-by: Christian Couder Mentored-by: John Cai Signed-off-by: Siddharth Asthana Signed-off-by: Junio C Hamano

date API: create a date.h, split from cache.h

2022-02-16T17:40:00Z

Move the declaration of the date.c functions from cache.h, and adjust the relevant users to include the new date.h header. The show_ident_date() function belonged in pretty.h (it's defined in pretty.c), its two users outside of pretty.c didn't strictly need to include pretty.h, as they get it indirectly, but let's add it to them anyway. Similarly, the change to "builtin/{fast-import,show-branch,tag}.c" isn't needed as far as the compiler is concerned, but since they all use the "DATE_MODE()" macro we now define in date.h, let's have them include it. We could simply include this new header in "cache.h", but as this change shows these functions weren't common enough to warrant including in it in the first place. By moving them out of cache.h changes to this API will no longer cause a (mostly) full re-build of the project when "make" is run. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano