CLI: pass --config to external commands via NOTMUCH_CONFIG.

[notmuch] / notmuch.c

diff --git a/notmuch.c b/notmuch.c
index 68a785e25bf0b826a17071bc8162edefe30fb87b..c75b0188e7dfc901d9822558135117c404b93bde 100644 (file)
--- a/notmuch.c
+++ b/notmuch.c
@@ -429,11 +429,18 @@ notmuch_command (notmuch_database_t *notmuch,
  * false on errors.
  */
 static bool
-try_external_command (char *argv[])
+try_external_command (const char *config_file_name, char *argv[])
 {
     char *old_argv0 = argv[0];
     bool ret = true;
 
+    if (config_file_name) {
+       if (setenv ("NOTMUCH_CONFIG", config_file_name, 1)) {
+           perror ("setenv");
+           exit (1);
+       }
+    }
+
     argv[0] = talloc_asprintf (NULL, "notmuch-%s", old_argv0);
 
     /*
@@ -493,7 +500,7 @@ main (int argc, char *argv[])
     /* if command->function is NULL, try external command */
     if (! command || ! command->function) {
        /* This won't return if the external command is found. */
-       if (try_external_command (argv + opt_index))
+       if (try_external_command (config_file_name, argv + opt_index))
            fprintf (stderr, "Error: Unknown command '%s' (see \"notmuch help\")\n",
                     command_name);
        ret = EXIT_FAILURE;