Win32: don't copy the environment twice when spawning child processes

diff --git a/run-command.c b/run-command.c
index 75abc478c6da75471e5fdbb55c74efdfcf3ad160..82dd0853a195adc000cd88c9b5874969f3836df0 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -279,6 +279,9 @@ int start_command(struct child_process *cmd)
        int failed_errno;
        char *str;
 
+       if (!cmd->argv)
+               cmd->argv = cmd->args.argv;
+
        /*
         * In case of errors we must keep the promise to close FDs
         * that have been passed in via ->in and ->out.
@@ -328,6 +331,7 @@ int start_command(struct child_process *cmd)
 fail_pipe:
                        error("cannot create %s pipe for %s: %s",
                                str, cmd->argv[0], strerror(failed_errno));
+                       argv_array_clear(&cmd->args);
                        errno = failed_errno;
                        return -1;
                }
@@ -450,7 +454,6 @@ int start_command(struct child_process *cmd)
 {
        int fhin = 0, fhout = 1, fherr = 2;
        const char **sargv = cmd->argv;
-       char **env = environ;
 
        if (cmd->no_stdin)
                fhin = open("/dev/null", O_RDWR);
@@ -475,24 +478,19 @@ int start_command(struct child_process *cmd)
        else if (cmd->out > 1)
                fhout = dup(cmd->out);
 
-       if (cmd->env)
-               env = make_augmented_environ(cmd->env);
-
        if (cmd->git_cmd)
                cmd->argv = prepare_git_cmd(cmd->argv);
        else if (cmd->use_shell)
                cmd->argv = prepare_shell_cmd(cmd->argv);
 
-       cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, env, cmd->dir,
-                                 fhin, fhout, fherr);
+       cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, (char**) cmd->env,
+                       cmd->dir, fhin, fhout, fherr);
        failed_errno = errno;
        if (cmd->pid < 0 && (!cmd->silent_exec_failure || errno != ENOENT))
                error("cannot spawn %s: %s", cmd->argv[0], strerror(errno));
        if (cmd->clean_on_exit && cmd->pid >= 0)
                mark_child_for_cleanup(cmd->pid);
 
-       if (cmd->env)
-               free_environ(env);
        if (cmd->git_cmd)
                free(cmd->argv);
 
@@ -519,6 +517,7 @@ int start_command(struct child_process *cmd)
                        close_pair(fderr);
                else if (cmd->err)
                        close(cmd->err);
+               argv_array_clear(&cmd->args);
                errno = failed_errno;
                return -1;
        }
@@ -543,7 +542,9 @@ int start_command(struct child_process *cmd)
 
 int finish_command(struct child_process *cmd)
 {
-       return wait_or_whine(cmd->pid, cmd->argv[0]);
+       int ret = wait_or_whine(cmd->pid, cmd->argv[0]);
+       argv_array_clear(&cmd->args);
+       return ret;
 }
 
 int run_command(struct child_process *cmd)