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[PATCH 1/7] submodule--helper: run update using child process struct

From
Glen Choo <chooglen@google.com>
Date
Mar 15, 2022, 21:09 UTC
Message-ID
<20220315210925.79289-2-chooglen@google.com>
In-Reply-To
<20220315210925.79289-1-chooglen@google.com>
From: Atharva Raykar <raykar.ath@gmail.com>

We switch to using the run-command API function that takes a 'struct child process', since we are using a lot of the options. This will also make it simple to switch over to using 'capture_command()' when we start handling the output of the command completely in C.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Shourya Shukla <periperidip@gmail.com>
Signed-off-by: Atharva Raykar <raykar.ath@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/submodule--helper.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index bef9ab22d4..95ef113d16 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -2325,47 +2325,45 @@ static int fetch_in_submodule(const char *module_path, int depth, int quiet, str
 
 static int run_update_command(struct update_data *ud, int subforce)
 {
-	struct strvec args = STRVEC_INIT;
-	struct strvec child_env = STRVEC_INIT;
+	struct child_process cp = CHILD_PROCESS_INIT;
 	char *oid = oid_to_hex(&ud->oid);
 	int must_die_on_failure = 0;
-	int git_cmd;
 
 	switch (ud->update_strategy.type) {
 	case SM_UPDATE_CHECKOUT:
-		git_cmd = 1;
-		strvec_pushl(&args, "checkout", "-q", NULL);
+		cp.git_cmd = 1;
+		strvec_pushl(&cp.args, "checkout", "-q", NULL);
 		if (subforce)
-			strvec_push(&args, "-f");
+			strvec_push(&cp.args, "-f");
 		break;
 	case SM_UPDATE_REBASE:
-		git_cmd = 1;
-		strvec_push(&args, "rebase");
+		cp.git_cmd = 1;
+		strvec_push(&cp.args, "rebase");
 		if (ud->quiet)
-			strvec_push(&args, "--quiet");
+			strvec_push(&cp.args, "--quiet");
 		must_die_on_failure = 1;
 		break;
 	case SM_UPDATE_MERGE:
-		git_cmd = 1;
-		strvec_push(&args, "merge");
+		cp.git_cmd = 1;
+		strvec_push(&cp.args, "merge");
 		if (ud->quiet)
-			strvec_push(&args, "--quiet");
+			strvec_push(&cp.args, "--quiet");
 		must_die_on_failure = 1;
 		break;
 	case SM_UPDATE_COMMAND:
-		git_cmd = 0;
-		strvec_push(&args, ud->update_strategy.command);
+		cp.use_shell = 1;
+		strvec_push(&cp.args, ud->update_strategy.command);
 		must_die_on_failure = 1;
 		break;
 	default:
 		BUG("unexpected update strategy type: %s",
 		    submodule_strategy_to_string(&ud->update_strategy));
 	}
-	strvec_push(&args, oid);
+	strvec_push(&cp.args, oid);
 
-	prepare_submodule_repo_env(&child_env);
-	if (run_command_v_opt_cd_env(args.v, git_cmd ? RUN_GIT_CMD : RUN_USING_SHELL,
-				     ud->sm_path, child_env.v)) {
+	cp.dir = xstrdup(ud->sm_path);
+	prepare_submodule_repo_env(&cp.env_array);
+	if (run_command(&cp)) {
 		switch (ud->update_strategy.type) {
 		case SM_UPDATE_CHECKOUT:
 			printf(_("Unable to checkout '%s' in submodule path '%s'"),
-- 
2.33.GIT
Previous: Glen ChooNext: Glen Choo
Message 2 of 8 in “Finish converting "submodule update" to C”
  1. 0/7 Finish converting "submodule update" to CGlen Choo, Mar 15, 2022
  2. 1/7 submodule--helper: run update using child process structGlen Choo, Mar 15, 2022
  3. 2/7 submodule update: use die_message()Glen Choo, Mar 15, 2022
  4. 3/7 builtin/submodule--helper.c: rename option struct to "opt"Glen Choo, Mar 15, 2022
  5. 4/7 submodule--helper: teach update_data more optionsGlen Choo, Mar 15, 2022
  6. 5/7 submodule--helper: reduce logic in run_update_procedure()Glen Choo, Mar 15, 2022
  7. 6/7 submodule: move core cmd_update() logic to CGlen Choo, Mar 15, 2022
  8. 7/7 submodule--helper: remove forward declarationGlen Choo, Mar 15, 2022

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