doc/developer: deduplicate commit message rules

The patches/committing section currently contains several
partially-overlapping rules on commit messages. Merge and simplify them
into one item.
This commit is contained in:
Anton Khirnov 2023-08-24 11:12:55 +02:00
parent 4c4bf54d99
commit 99fe00ab4b

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@ -340,13 +340,24 @@ missing samples or an implementation with a small subset of features.
Always check the mailing list for any reviewers with issues and test
FATE before you push.
@subheading Keep the main commit message short with an extended description below.
The commit message should have a short first line in the form of
a @samp{topic: short description} as a header, separated by a newline
from the body consisting of an explanation of why the change is necessary.
If the commit fixes a known bug on the bug tracker, the commit message
should include its bug ID. Referring to the issue on the bug tracker does
not exempt you from writing an excerpt of the bug in the commit message.
@subheading Commit messages
Commit messages are highly important tools for informing other developers on
what a given change does and why. Every commit must always have a properly
filled out commit message with the following format:
@example
area changed: short 1 line description
details describing what and why and giving references.
@end example
If the commit addresses a known bug on our bug tracker or other external issue
(e.g. CVE), the commit message should include the relevant bug ID(s) or other
external identifiers. Note that this should be done in addition to a proper
explanation and not instead of it. Comments such as "fixed!" or "Changed it."
are not acceptable.
When applying patches that have been discussed at length on the mailing list,
reference the thread in the commit message.
@subheading Testing must be adequate but not excessive.
If it works for you, others, and passes FATE then it should be OK to commit
@ -379,28 +390,12 @@ NOTE: If you had to put if()@{ .. @} over a large (> 5 lines) chunk of code,
then either do NOT change the indentation of the inner part within (do not
move it to the right)! or do so in a separate commit
@subheading Commit messages should always be filled out properly.
Always fill out the commit log message. Describe in a few lines what you
changed and why. You can refer to mailing list postings if you fix a
particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
Recommended format:
@example
area changed: Short 1 line description
details describing what and why and giving references.
@end example
@subheading Credit the author of the patch.
Make sure the author of the commit is set correctly. (see git commit --author)
If you apply a patch, send an
answer to ffmpeg-devel (or wherever you got the patch from) saying that
you applied the patch.
@subheading Complex patches should refer to discussion surrounding them.
When applying patches that have been discussed (at length) on the mailing
list, reference the thread in the log message.
@subheading Always wait long enough before pushing changes
Do NOT commit to code actively maintained by others without permission.
Send a patch to ffmpeg-devel. If no one answers within a reasonable