The previous commit fixed the problem that the staged but that ignored
submodules did not show up in the status output of the commit command and
weren't committed afterwards either. But when commit doesn't generate the
status output (e.g. when used in a script with '-m') the ignored submodule
will still not be committed. This is because in that case a different code
path is taken which calls index_differs_from() instead of calling the
wt_status functions.

Fix that by calling index_differs_from() from builtin/commit.c with a
diff_options argument value that tells it not ignore any submodule changes
unless the '--ignore-submodules' option is used. Even though this option
isn't yet implemented for cmd_commit() but only for cmd_status() this
prepares cmd_commit() to correctly handle the '--ignore-submodules' option
later. As status and commit share the same ignore_submodule_arg variable
this makes the code more robust against accidental breakage and documents
how to correctly call index_differs_from().

Change the expected result of the test documenting this problem from
failure to success.

Signed-off-by: Jens Lehmann <>
 builtin/commit.c  | 18 ++++++++++++++++--
 t/ |  2 +-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index d9550c5..a456a60 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -833,8 +833,22 @@ static int prepare_to_commit(const char *index_file, const 
char *prefix,

                if (get_sha1(parent, sha1))
                        commitable = !!active_nr;
-               else
-                       commitable = index_differs_from(parent, 0);
+               else {
+                       /*
+                        * Unless the user did explicitly request a submodule
+                        * ignore mode by passing a command line option we do
+                        * not ignore any changed submodule SHA-1s when
+                        * comparing index and parent, no matter what is
+                        * configured. Otherwise we won't commit any
+                        * submodules which were manually staged, which would
+                        * be really confusing.
+                        */
+                       int diff_flags = DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG;
+                       if (ignore_submodule_arg &&
+                           !strcmp(ignore_submodule_arg, "all"))
+                               diff_flags |= DIFF_OPT_IGNORE_SUBMODULES;
+                       commitable = index_differs_from(parent, diff_flags);
+               }

diff --git a/t/ b/t/
index e6483fc..d480069 100755
--- a/t/
+++ b/t/
@@ -1523,7 +1523,7 @@ EOF
        test_i18ngrep "^M. sm" output

-test_expect_failure 'git commit -m will commit a staged but ignored submodule' 
+test_expect_success 'git commit -m will commit a staged but ignored submodule' 
        git commit -uno -m message &&
        git status -s --ignore-submodules=dirty >output &&
         test_i18ngrep ! "^M. sm" output &&

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