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

From: Phillip Wood <phillip.wood@dunelm.org.uk>

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/6a3154e0-e7bc-45ae-b554-67ccab18727a@gmail.com [2] https://lore.kernel.org/git/20250315140913.577404-1-oswald.buddenhagen@gmx.de [3] https://lore.kernel.org/git/20250626132233.414789-1-ayu.chandekar@gmail.com

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(-)