Subject: [PATCH 0/2] breaking-changes: deprecate support for core.commentChar=auto

From: Phillip Wood <[email-masked]>
Date: Tue, 8 Jul 2025 14:56:50 +0100

From: Phillip Wood <[email-masked]>

This series implements the plan to deprecate and remove support for
core.commentChar=auto outlined in [1]. This feature has been the
source of a couple of bug reports recently [2,3] and as explained in
the first patch the design is tricky to fix. When git sees the
deprecated config setting it will print advice like the example below
to help the user either remove the setting or set a custom comment
string.

hint: Support for 'core.commentChar=auto' is deprecated and will be removed in git 3.0
hint:
hint: To use the default comment string (#) please run
hint:
hint:     git config unset --file ~/.config/git/config --all core.commentString
hint:     git config unset --file ~/.config/git/config core.commentChar
hint:     git config unset --global core.commentChar
hint:
hint: To set a custom comment string please run
hint:
hint:     git config set --global core.commentChar <comment string>
hint:
hint: where '<comment string>' is the string you wish to use.

[1] https://lore.kernel.org/git/[email-masked]
[2] https://lore.kernel.org/git/[email-masked]
[3] https://lore.kernel.org/git/[email-masked]

Base-Commit: f0135a9047ca37d4d117dcf21f7e3e89fad85d00
Published-As: https://github.com/phillipwood/git/releases/tag/pw%2Fremove-auto-comment-char%2Fv1
View-Changes-At: https://github.com/phillipwood/git/compare/f0135a904...83d0d3ece
Fetch-It-Via: git fetch https://github.com/phillipwood/git pw/remove-auto-comment-char/v1

Phillip Wood (2):
  breaking-changes: deprecate support for core.commentString=auto
  commit: print advice when core.commentString=auto

 Documentation/BreakingChanges.adoc |   4 +
 Documentation/config/core.adoc     |  20 ++-
 builtin/commit.c                   | 192 +++++++++++++++++++++++++++++
 config.c                           |   4 +
 environment.c                      |   2 +
 environment.h                      |   2 +
 t/t3404-rebase-interactive.sh      |   2 +-
 t/t7502-commit-porcelain.sh        |  32 ++++-
 8 files changed, 252 insertions(+), 6 deletions(-)

-- 
2.49.0.897.gfad3eb7d210