We have now clang format hooks/extension for hg and git.
Both work in the same way: at commit phase, they will automatically run
"mach clang-format
<https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style/Formatting_C++_Code_With_clang-format>"
(which is now executing in parallel
<https://bugzilla.mozilla.org/show_bug.cgi?id=1521772>) on the files
added as part of the commit operation. The reformatting will be done
also during a commit --amend.
The hg extension (provided by version-control-tools) is automatically
installed as part of the mach bootstrap process or can be done by hand
by adding the following line in .hgrc:
format-source = ~/.mozbuild/version-control-tools/hgext/format-source
For git, running this command should be enough:
$ ln -s $(pwd)/tools/lint/hooks_clang_format.py .git/hooks/pre-commit
However, for git, because of limitations in this vcs, we aren't able to
manage the git add -p case for now.
The goal is to have more and more people use these hooks to avoid the
task of regularly reformatting the tree
<https://bugzilla.mozilla.org/show_bug.cgi?id=1519636>.
Bugs should be reported here :
https://bugzilla.mozilla.org/enter_bug.cgi?product=Firefox%20Build%20System&component=Lint%20and%20Formatting
Implementations:
hg:
https://hg.mozilla.org/hgcustom/version-control-tools/file/tip/hgext/clang-format/__init__.py
git:
https://hg.mozilla.org/mozilla-central/file/tip/tools/lint/hooks_clang_format.py
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