[PATCH 01/10] run-command.c: refactor run_command_*_tr2() to internal helpers

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Refactor the run_command_v_opt_cd_env_tr2() function to helpers which
takes a "struct child_process *cmd" argument. This will allow for
adding a helper which won't need to copy a set of arguments to the
"cmd.args" we'd otherwise have to populate from the "argv".

Splitting out the part of the function that sets the various members
from "opt" will help in the subsequent commit.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 run-command.c | 40 +++++++++++++++++++++++++++-------------
 1 file changed, 27 insertions(+), 13 deletions(-)

diff --git a/run-command.c b/run-command.c
index 5ec3a46dccf..cf4a431c839 100644
--- a/run-command.c
+++ b/run-command.c
@@ -1004,6 +1004,18 @@ int run_command(struct child_process *cmd)
 	return finish_command(cmd);
 }
 
+static void run_command_set_opts(struct child_process *cmd, int opt)
+{
+	cmd->no_stdin = opt & RUN_COMMAND_NO_STDIN ? 1 : 0;
+	cmd->git_cmd = opt & RUN_GIT_CMD ? 1 : 0;
+	cmd->stdout_to_stderr = opt & RUN_COMMAND_STDOUT_TO_STDERR ? 1 : 0;
+	cmd->silent_exec_failure = opt & RUN_SILENT_EXEC_FAILURE ? 1 : 0;
+	cmd->use_shell = opt & RUN_USING_SHELL ? 1 : 0;
+	cmd->clean_on_exit = opt & RUN_CLEAN_ON_EXIT ? 1 : 0;
+	cmd->wait_after_clean = opt & RUN_WAIT_AFTER_CLEAN ? 1 : 0;
+	cmd->close_object_store = opt & RUN_CLOSE_OBJECT_STORE ? 1 : 0;
+}
+
 int run_command_v_opt(const char **argv, int opt)
 {
 	return run_command_v_opt_cd_env(argv, opt, NULL, NULL);
@@ -1019,24 +1031,26 @@ int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const
 	return run_command_v_opt_cd_env_tr2(argv, opt, dir, env, NULL);
 }
 
+static int run_command_v_opt_cd_env_tr2_1(struct child_process *cmd, int opt,
+					  const char *dir,
+					  const char *const *env,
+					  const char *tr2_class)
+{
+	run_command_set_opts(cmd, opt);
+	cmd->dir = dir;
+	if (env)
+		strvec_pushv(&cmd->env, (const char **)env);
+	cmd->trace2_child_class = tr2_class;
+	return run_command(cmd);
+}
+
 int run_command_v_opt_cd_env_tr2(const char **argv, int opt, const char *dir,
 				 const char *const *env, const char *tr2_class)
 {
 	struct child_process cmd = CHILD_PROCESS_INIT;
+
 	strvec_pushv(&cmd.args, argv);
-	cmd.no_stdin = opt & RUN_COMMAND_NO_STDIN ? 1 : 0;
-	cmd.git_cmd = opt & RUN_GIT_CMD ? 1 : 0;
-	cmd.stdout_to_stderr = opt & RUN_COMMAND_STDOUT_TO_STDERR ? 1 : 0;
-	cmd.silent_exec_failure = opt & RUN_SILENT_EXEC_FAILURE ? 1 : 0;
-	cmd.use_shell = opt & RUN_USING_SHELL ? 1 : 0;
-	cmd.clean_on_exit = opt & RUN_CLEAN_ON_EXIT ? 1 : 0;
-	cmd.wait_after_clean = opt & RUN_WAIT_AFTER_CLEAN ? 1 : 0;
-	cmd.close_object_store = opt & RUN_CLOSE_OBJECT_STORE ? 1 : 0;
-	cmd.dir = dir;
-	if (env)
-		strvec_pushv(&cmd.env, (const char **)env);
-	cmd.trace2_child_class = tr2_class;
-	return run_command(&cmd);
+	return run_command_v_opt_cd_env_tr2_1(&cmd, opt, dir, env, tr2_class);
 }
 
 #ifndef NO_PTHREADS
-- 
2.38.0.1092.g8c0298861b0