Re: [PATCH v4 4/4] commit: support commit.verbose and --no-verbose

> Add a new configuration variable commit.verbose to implicitly pass
> `--verbose` to `git-commit`. Add `--no-verbose` to commit to negate that
> setting.
>
> Signed-off-by: Caleb Thompson<caleb@calebthompson.io>
> ---
>   Documentation/config.txt               |  5 +++++
>   Documentation/git-commit.txt           |  8 +++++++-
>   builtin/commit.c                       |  6 +++++-
>   contrib/completion/git-completion.bash |  1 +
>   t/t7507-commit-verbose.sh              | 36 ++++++++++++++++++++++++++++++++++
>   5 files changed, 54 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/config.txt b/Documentation/config.txt
> index cd2d651..ec51e1c 100644
> --- a/Documentation/config.txt
> +++ b/Documentation/config.txt
> @@ -1017,6 +1017,11 @@ commit.template::
> 	"`~/`" is expanded to the value of `$HOME` and "`~user/`" to the
> 	specified user's home directory.
>
> +commit.verbose::
> +	A boolean to enable/disable inclusion of diff information in the
> +	commit message template when using an editor to prepare the commit
> +	message.  Defaults to false.
> +
>   credential.helper::
> 	Specify an external helper to be called when a username or
> 	password credential is needed; the helper may consult external
> diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
> index 0bbc8f5..8cb3439 100644
> --- a/Documentation/git-commit.txt
> +++ b/Documentation/git-commit.txt
> @@ -282,7 +282,13 @@ configuration variable documented in linkgit:git-config[1].
> 	Show unified diff between the HEAD commit and what
> 	would be committed at the bottom of the commit message
> 	template.  Note that this diff output doesn't have its
> -	lines prefixed with '#'.
> +	lines prefixed with '#'.  The `commit.verbose` configuration
> +	variable can be set to true to implicitly send this option.
> +
> +--no-verbose::
> +	Do not show the unified diff at the bottom of the commit message
> +	template.  This is the default behavior, but can be used to override
> +	the `commit.verbose` configuration variable.
>
>   -q::
>   --quiet::
> diff --git a/builtin/commit.c b/builtin/commit.c
> index 99c2044..c5b20c6 100644
> --- a/builtin/commit.c
> +++ b/builtin/commit.c
> @@ -1489,6 +1489,10 @@ static int git_commit_config(const char *k, const char *v, void *cb)
> 		sign_commit = git_config_bool(k, v) ? "" : NULL;
> 		return 0;
> 	}
> +	if (!strcmp(k, "commit.verbose")) {
> +		verbose = git_config_bool(k, v);
> +		return 0;
> +	}
>
> 	status = git_gpg_config(k, v, NULL);
> 	if (status)

> @@ -1556,7 +1560,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
> 	static struct wt_status s;
> 	static struct option builtin_commit_options[] = {
> 		OPT__QUIET(&quiet, N_("suppress summary after successful commit")),
> -		OPT__VERBOSE(&verbose, N_("show diff in commit message template")),
> +		OPT_BOOL('v', "verbose", &verbose, N_("show diff in commit message template")),

> 		OPT_GROUP(N_("Commit message options")),
> 		OPT_FILENAME('F', "file", &logfile, N_("read message from file")),
> diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
> index 2c59a76..b8f4b94 100644
> --- a/contrib/completion/git-completion.bash
> +++ b/contrib/completion/git-completion.bash
> @@ -1976,6 +1976,7 @@ _git_config ()
> 		color.ui
> 		commit.status
> 		commit.template
> +		commit.verbose
> 		core.abbrev
> 		core.askpass
> 		core.attributesfile
> diff --git a/t/t7507-commit-verbose.sh b/t/t7507-commit-verbose.sh
> index 35a4d06..512eef3 100755
> --- a/t/t7507-commit-verbose.sh
> +++ b/t/t7507-commit-verbose.sh
> @@ -7,6 +7,10 @@ write_script check-for-diff <<-'EOF'
> 	exec grep '^diff --git' "$1"
>   EOF
>
> +write_script check-for-no-diff <<-EOF
> +	exec grep -v '^diff --git' "\$1"
> +EOF
> +
>   cat >message <<'EOF'
>   subject
>
> @@ -48,6 +52,38 @@ test_expect_success 'verbose diff is stripped out (mnemonicprefix)' '
> 	check_message message
>   '
>
> +test_expect_success 'commit shows verbose diff with commit.verbose true' '
> +	echo morecontent >>file &&
> +	git add file &&
> +	test_config commit.verbose true &&
> +	test_set_editor "$PWD/check-for-diff" &&
> +	git commit --amend
> +'
> +
> +test_expect_success 'commit --verbose overrides commit.verbose false' '
> +	echo evenmorecontent >>file &&
> +	git add file &&
> +	test_config commit.verbose false  &&
> +	test_set_editor "$PWD/check-for-diff" &&
> +	git commit --amend --verbose
> +'
> +
> +test_expect_success 'commit does not show verbose diff with commit.verbose false' '
> +	echo evenmorecontent >>file &&
> +	git add file &&
> +	test_config commit.verbose false &&
> +	test_set_editor "$PWD/check-for-no-diff" &&
> +	git commit --amend
> +'
> +
> +test_expect_success 'commit --no-verbose overrides commit.verbose true' '
> +	echo evenmorecontent >>file &&
> +	git add file &&
> +	test_config commit.verbose true &&
> +	test_set_editor "$PWD/check-for-no-diff" &&
> +	git commit --amend --no-verbose
> +'
> +
>   cat >diff <<'EOF'
>   This is an example commit message that contains a diff.
>
> --
> 2.0.0
>