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2026-07-07hash: use git_hash_init() consistentlyJeff King1-1/+1
We'd like to add more logic to git_hash_init(), but many callers skip it and call algop->init_fn() directly. Let's make sure we're consistently using the wrapper by adding a coccinelle rule. Besides the coccinelle file itself, this is a purely mechanical conversion based on the patch it generates. There should be no bare init_fn() calls left (except for the one in the wrapper). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-01-31global: adapt callers to use generic hash context helpersPatrick Steinhardt1-2/+2
Adapt callers to use generic hash context helpers instead of using the hash algorithm to update them. This makes the callsites easier to reason about and removes the possibility that the wrong hash algorithm is used to update the hash context's state. And as a nice side effect this also gets rid of a bunch of users of `the_hash_algo`. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-01-31hash: stop typedeffing the hash contextPatrick Steinhardt1-1/+1
We generally avoid using `typedef` in the Git codebase. One exception though is the `git_hash_ctx`, likely because it used to be a union rather than a struct until the preceding commit refactored it. But now that it is a normal `struct` there isn't really a need for a typedef anymore. Drop the typedef and adapt all callers accordingly. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21treewide: remove unnecessary includes of cache.hElijah Newren1-1/+2
The last several commits were geared at replacing the include of cache.h in strbuf.c with an include of git-compat-util.h. Unfortunately, I had to drop a patch moving some functions from cache.h to object-name.h, due to excessive conflicts with other in-flight topics. However, even without that patch, the series of patches so far allows us to modify a number of C files to replace an include of cache.h with git-compat-util.h. Do that to reduce our dependencies. (If we could have kept our object-name.h patch in this series, it would have also let us reduce the includes in checkout.c and fmt-merge-msg.c in addition to strbuf.c). Just to ensure that nothing else was bringing in cache.h, all of the affected files have been checked to ensure that gcc -E -I. $SOURCE_FILE | grep '"cache.h"' found no hits and that make DEVELOPER=1 ${OBJECT_FILE_FOR_SOURCE_FILE} successfully compiles without warnings. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-23cache.h: remove dependence on hex.h; make other files include it explicitlyElijah Newren1-0/+1
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-10Fix spelling errors in code commentsElijah Newren1-1/+1
Reported-by: Jens Schleusener <Jens.Schleusener@fossies.org> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-28trace2: rename environment variables to GIT_TRACE2*SZEDER Gábor1-1/+1
For an environment variable that is supposed to be set by users, the GIT_TR2* env vars are just too unclear, inconsistent, and ugly. Most of the established GIT_* environment variables don't use abbreviations, and in case of the few that do (GIT_DIR, GIT_COMMON_DIR, GIT_DIFF_OPTS) it's quite obvious what the abbreviations (DIR and OPTS) stand for. But what does TR stand for? Track, traditional, trailer, transaction, transfer, transformation, transition, translation, transplant, transport, traversal, tree, trigger, truncate, trust, or ...?! The trace2 facility, as the '2' suffix in its name suggests, is supposed to eventually supercede Git's original trace facility. It's reasonable to expect that the corresponding environment variables follow suit, and after the original GIT_TRACE variables they are called GIT_TRACE2; there is no such thing is 'GIT_TR'. All trace2-specific config variables are, very sensibly, in the 'trace2' section, not in 'tr2'. OTOH, we don't gain anything at all by omitting the last three characters of "trace" from the names of these environment variables. So let's rename all GIT_TR2* environment variables to GIT_TRACE2*, before they make their way into a stable release. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-16trace2: make SIDs more uniqueJeff Hostetler1-4/+49
Update SID component construction to use the current UTC datetime and a portion of the SHA1 of the hostname. Use an simplified date/time format to make it easier to use the SID component as a logfile filename. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-22trace2: create new combined trace facilityJeff Hostetler1-0/+67
Create a new unified tracing facility for git. The eventual intent is to replace the current trace_printf* and trace_performance* routines with a unified set of git_trace2* routines. In addition to the usual printf-style API, trace2 provides higer-level event verbs with fixed-fields allowing structured data to be written. This makes post-processing and analysis easier for external tools. Trace2 defines 3 output targets. These are set using the environment variables "GIT_TR2", "GIT_TR2_PERF", and "GIT_TR2_EVENT". These may be set to "1" or to an absolute pathname (just like the current GIT_TRACE). * GIT_TR2 is intended to be a replacement for GIT_TRACE and logs command summary data. * GIT_TR2_PERF is intended as a replacement for GIT_TRACE_PERFORMANCE. It extends the output with columns for the command process, thread, repo, absolute and relative elapsed times. It reports events for child process start/stop, thread start/stop, and per-thread function nesting. * GIT_TR2_EVENT is a new structured format. It writes event data as a series of JSON records. Calls to trace2 functions log to any of the 3 output targets enabled without the need to call different trace_printf* or trace_performance* routines. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>