Re: [Libguestfs] [PATCH] fish: show synopsis if command syntax is wrong

This patch lets guestfish show command synopsis if the syntax of command issued by user is wrong, rather than telling user that the number of parameters is wrong.

@@ -694,10 +679,16 @@ Guestfish will prompt for these separately." pr "run_action (const char *cmd, size_t argc, char *argv[])\n"; pr "{\n"; pr " const struct command_table *ct;\n"; + pr " int ret = -1;\n"; pr "\n"; pr " ct = lookup_fish_command (cmd, strlen (cmd));\n"; - pr " if (ct)\n"; - pr " return ct->entry->run (cmd, argc, argv);\n"; + pr " if (ct) {\n"; + pr " ret = ct->entry->run (cmd, argc, argv);\n"; + pr " if (ret == -2) {\n"; + pr " fprintf (stderr, _(\"usage: %%s\\n\"), ct->entry->synopsis);\n"; + pr " fprintf (stderr, _(\"type 'help %%s' for more help on %%s\\n\"), cmd, cmd);\n"; + pr " }\n"; + pr " }\n";