Another update to also use quotes around the check-for-no-diff script body.

If I don't get any more feedback in the next few hours I'll send another full
version of the patch.

Caleb Thompson

------------------------ >8 ------------------------

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                       |  4 ++++
 contrib/completion/git-completion.bash |  1 +
 t/t7507-commit-verbose.sh              | 36 ++++++++++++++++++++++++++++++++++
 5 files changed, 53 insertions(+), 1 deletion(-)

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..c782388 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)
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..402d6a1 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