[PATCH v2 1/1] submodule foreach: fix recursion of options

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From: Morian Sonnet <MorianSonnet@xxxxxxxxxxxxxx>

Calling

    git submodule foreach --recursive git reset --hard

leads to an error stating that the option --hard is unknown to
submodule--helper.

Reasons:

. Above call is internally translated into

    git submodule--helper foreach --recursive -- git reset --hard

. After calling

    git reset --hard

  inside the first first level submodule,

    git --super-prefix <submodulepath> submodule--helper \
      foreach --recursive git reset --hard

  is called. Note the missing --.

. Due to the removal of PARSE_OPT_KEEP_UNKNOWN in commit a282f5a906 the
  option --hard is not passed to

    git reset

  anymore, but leads to git submodule--helper complaining about an
  unknown option.

Fix:

. Add -- before the command to execute, such that now correctly

    git --super-prefix <submodulepath> submodule--helper \
      foreach --recursive -- git reset --hard

  is called.

Signed-off-by: Morian Sonnet <moriansonnet@xxxxxxxxxxxxxx>
---
 builtin/submodule--helper.c  | 1 +
 t/t7407-submodule-foreach.sh | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 0bf4aa088e..afaf0819c9 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -540,6 +540,7 @@ static void runcommand_in_submodule_cb(const struct cache_entry *list_item,
 		if (info->quiet)
 			argv_array_push(&cpr.args, "--quiet");
 
+		argv_array_push(&cpr.args, "--");
 		argv_array_pushv(&cpr.args, info->argv);
 
 		if (run_command(&cpr))
diff --git a/t/t7407-submodule-foreach.sh b/t/t7407-submodule-foreach.sh
index 706ae762e0..c554589e6f 100755
--- a/t/t7407-submodule-foreach.sh
+++ b/t/t7407-submodule-foreach.sh
@@ -421,4 +421,11 @@ test_expect_success 'option-like arguments passed to foreach commands are not lo
 	test_cmp expected actual
 '
 
+test_expect_success 'option-like arguments passed to foreach recurse correctly' '
+  (
+    cd super &&
+    git submodule foreach --recursive git reset --hard
+  )
+'
+
 test_done
-- 
gitgitgadget



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