[PATCH v2 26/28] submodule--helper: libify "must_die_on_failure" code paths

[Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>]

In preceding commits the codepaths around update_submodules() were
changed from using exit() or die() to ferrying up a
"must_die_on_failure" in the cases where we'd exit(), and in most
cases where we'd die().

We needed to do this this to ensure that we'd early exit or otherwise
abort the update_submodules() processing before it was completed.

Now that those preceding changes have shown that we've converted those
paths, we can remove the remaining "ret == 128" special-cases, leaving
the only such special-case in update_submodules(). I.e. we now know
after having gone through the various codepaths that we were only
returning 128 if we meant to early abort.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 builtin/submodule--helper.c | 33 +++++++++++----------------------
 1 file changed, 11 insertions(+), 22 deletions(-)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 2b78fa7573f..79a11992d1c 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -2147,8 +2147,7 @@ static int fetch_in_submodule(const char *module_path, int depth, int quiet, str
 	return run_command(&cp);
 }
 
-static int run_update_command(struct update_data *ud, int subforce,
-			      int *must_die_on_failure)
+static int run_update_command(struct update_data *ud, int subforce)
 {
 	struct child_process cp = CHILD_PROCESS_INIT;
 	char *oid = oid_to_hex(&ud->oid);
@@ -2211,8 +2210,6 @@ static int run_update_command(struct update_data *ud, int subforce,
 			    ud->update_strategy.type);
 		}
 
-		if (ret == 128)
-			*must_die_on_failure = 1;
 		return ret;
 	}
 
@@ -2244,8 +2241,7 @@ static int run_update_command(struct update_data *ud, int subforce,
 	return 0;
 }
 
-static int run_update_procedure(struct update_data *ud,
-				int *must_die_on_failure)
+static int run_update_procedure(struct update_data *ud)
 {
 	int subforce = is_null_oid(&ud->suboid) || ud->force;
 
@@ -2272,7 +2268,7 @@ static int run_update_procedure(struct update_data *ud,
 			    ud->displaypath, oid_to_hex(&ud->oid));
 	}
 
-	return run_update_command(ud, subforce, must_die_on_failure);
+	return run_update_command(ud, subforce);
 }
 
 static const char *remote_submodule_branch(const char *path)
@@ -2408,8 +2404,7 @@ static void update_data_to_args(struct update_data *update_data, struct strvec *
 				    "--no-single-branch");
 }
 
-static int update_submodule(struct update_data *update_data,
-			    int *must_die_on_failure)
+static int update_submodule(struct update_data *update_data)
 {
 	int ret;
 
@@ -2454,11 +2449,9 @@ static int update_submodule(struct update_data *update_data,
 	}
 
 	if (!oideq(&update_data->oid, &update_data->suboid) || update_data->force) {
-		ret = run_update_procedure(update_data, must_die_on_failure);
-		if (*must_die_on_failure)
-			return ret;
+		ret = run_update_procedure(update_data);
 		if (ret)
-			return 1;
+			return ret;
 	}
 
 	if (update_data->recursive) {
@@ -2476,12 +2469,9 @@ static int update_submodule(struct update_data *update_data,
 
 		/* die() if child process die()'d */
 		ret = run_command(&cp);
-		if (!ret)
-			return 0;
-		die_message(_("Failed to recurse into submodule path '%s'"),
-			    update_data->displaypath);
-		if (ret == 128)
-			*must_die_on_failure = 1;
+		if (ret)
+			die_message(_("Failed to recurse into submodule path '%s'"),
+				    update_data->displaypath);
 		return ret;
 	}
 
@@ -2514,17 +2504,16 @@ static int update_submodules(struct update_data *update_data)
 
 	for (i = 0; i < suc.update_clone_nr; i++) {
 		struct update_clone_data ucd = suc.update_clone[i];
-		int must_die_on_failure = 0;
 		int code;
 
 		oidcpy(&update_data->oid, &ucd.oid);
 		update_data->just_cloned = ucd.just_cloned;
 		update_data->sm_path = ucd.sub->path;
 
-		code = update_submodule(update_data, &must_die_on_failure);
+		code = update_submodule(update_data);
 		if (code)
 			ret = code;
-		if (must_die_on_failure)
+		if (code == 128)
 			goto cleanup;
 		else if (code)
 			ret = 1;
-- 
2.37.1.1233.ge8b09efaedc