X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch.c;h=b9c320329dd526000b436210d52cceee0ced0717;hp=9580c3fe1e062b4821b8bd10677aafbd8f5ddc5c;hb=429c30c2bc6587023f234a8a801f9ad5ce7076c0;hpb=653190bf2a1bed19e9a8dffc437084604261cc26

diff --git a/notmuch.c b/notmuch.c
index 9580c3fe..b9c32032 100644
--- a/notmuch.c
+++ b/notmuch.c
@@ -14,7 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ * along with this program.  If not, see https://www.gnu.org/licenses/ .
  *
  * Authors: Carl Worth <cworth@cworth.org>
  *	    Keith Packard <keithp@keithp.com>
@@ -47,10 +47,12 @@ static int
 _help_for (const char *topic);
 
 static notmuch_bool_t print_version = FALSE, print_help = FALSE;
+char *notmuch_requested_db_uuid = NULL;
 
 const notmuch_opt_desc_t notmuch_shared_options [] = {
     { NOTMUCH_OPT_BOOLEAN, &print_version, "version", 'v', 0 },
     { NOTMUCH_OPT_BOOLEAN, &print_help, "help", 'h', 0 },
+    { NOTMUCH_OPT_STRING, &notmuch_requested_db_uuid, "uuid", 'u', 0 },
     {0, 0, 0, 0, 0}
 };
 
@@ -218,6 +220,22 @@ be supported in the future.\n", notmuch_format_version);
     }
 }
 
+void
+notmuch_exit_if_unmatched_db_uuid (notmuch_database_t *notmuch)
+{
+    const char *uuid = NULL;
+
+    if (!notmuch_requested_db_uuid)
+	return;
+    IGNORE_RESULT (notmuch_database_get_revision (notmuch, &uuid));
+
+    if (strcmp (notmuch_requested_db_uuid, uuid) != 0){
+	fprintf (stderr, "Error: requested database revision %s does not match %s\n",
+		 notmuch_requested_db_uuid, uuid);
+	exit (1);
+    }
+}
+
 static void
 exec_man (const char *page)
 {
@@ -336,7 +354,7 @@ notmuch_command (notmuch_config_t *config,
 	    "You can also use \"notmuch show\" with any of the thread IDs resulting\n"
 	    "from a search. Finally, you may want to explore using a more sophisticated\n"
 	    "interface to notmuch such as the emacs interface implemented in notmuch.el\n"
-	    "or any other interface described at http://notmuchmail.org\n\n"
+	    "or any other interface described at https://notmuchmail.org\n\n"
 	    "And don't forget to run \"notmuch new\" whenever new mail arrives.\n\n"
 	    "Have fun, and may your inbox never have much mail.\n\n",
 	    notmuch_config_get_user_name (config),
@@ -345,6 +363,39 @@ notmuch_command (notmuch_config_t *config,
     return EXIT_SUCCESS;
 }
 
+/*
+ * Try to run subcommand in argv[0] as notmuch- prefixed external
+ * command. argv must be NULL terminated (argv passed to main always
+ * is).
+ *
+ * Does not return if the external command is found and
+ * executed. Return TRUE if external command is not found. Return
+ * FALSE on errors.
+ */
+static notmuch_bool_t try_external_command(char *argv[])
+{
+    char *old_argv0 = argv[0];
+    notmuch_bool_t ret = TRUE;
+
+    argv[0] = talloc_asprintf (NULL, "notmuch-%s", old_argv0);
+
+    /*
+     * This will only return on errors. Not finding an external
+     * command (ENOENT) is not an error from our perspective.
+     */
+    execvp (argv[0], argv);
+    if (errno != ENOENT) {
+	fprintf (stderr, "Error: Running external command '%s' failed: %s\n",
+		 argv[0], strerror(errno));
+	ret = FALSE;
+    }
+
+    talloc_free (argv[0]);
+    argv[0] = old_argv0;
+
+    return ret;
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -388,8 +439,10 @@ main (int argc, char *argv[])
 
     command = find_command (command_name);
     if (!command) {
-	fprintf (stderr, "Error: Unknown command '%s' (see \"notmuch help\")\n",
-		 command_name);
+	/* This won't return if the external command is found. */
+	if (try_external_command(argv + opt_index))
+	    fprintf (stderr, "Error: Unknown command '%s' (see \"notmuch help\")\n",
+		     command_name);
 	ret = EXIT_FAILURE;
 	goto DONE;
     }