notmuch: Revamp help message a bit.

The big update here is the addition of the dump and restore commands
which are next on my list. Also, I've now come up with a syntax for
documenting the arguments of sub-commands.
This commit is contained in:
Carl Worth 2009-10-19 23:41:31 -07:00
parent ad784f38ce
commit 5f8d44fa5b

View file

@ -379,19 +379,49 @@ search_command (int argc, char *argv[])
int int
show_command (int argc, char *argv[]) show_command (int argc, char *argv[])
{ {
fprintf (stderr, "Error: show-thread is not implemented yet.\n"); fprintf (stderr, "Error: show is not implemented yet.\n");
return 1;
}
int
dump_command (int argc, char *argv[])
{
fprintf (stderr, "Error: dump is not implemented yet.\n");
return 1;
}
int
restore_command (int argc, char *argv[])
{
fprintf (stderr, "Error: restore is not implemented yet.\n");
return 1; return 1;
} }
command_t commands[] = { command_t commands[] = {
{ "setup", setup_command, { "setup", setup_command,
"Interactively setup notmuch for first use (no arguments).\n" "Interactively setup notmuch for first use.\n"
"\t\tInvoking notmuch with no command argument will run setup if\n" "\t\tInvoking notmuch with no command argument will run setup if\n"
"\t\the setup command has not previously been completed." }, "\t\tthe setup command has not previously been completed." },
{ "search", search_command, { "search", search_command,
"Search for threads matching the given search terms." }, "<search-term> [...]\n\n"
"\t\tSearch for threads matching the given search terms.\n"
"\t\tOnce we actually implement search we'll document the\n"
"\t\tsyntax here." },
{ "show", show_command, { "show", show_command,
"Show the thread with the given thread ID (see 'search')." } "<thread-id>\n\n"
"\t\tShow the thread with the given thread ID (see 'search')." },
{ "dump", dump_command,
"[<filename>]\n\n"
"\t\tCreate a plain-text dump of the tags for each message\n"
"\t\twriting to the given filename, if any, or to stdout.\n"
"\t\tThese tags are the only data in the notmuch database\n"
"\t\tthat can't be recreated from the messages themselves.\n"
"\t\tThe output of notmuch dump is therefore the only\n"
"\t\tcritical thing to backup (and much more friendly to\n"
"\t\tincremental backup than the native database files." },
{ "restore", restore_command,
"<filename>\n\n"
"\t\tRestore the tags from the given dump file (see 'dump')." }
}; };
void void
@ -402,7 +432,7 @@ usage (void)
fprintf (stderr, "Usage: notmuch <command> [args...]\n"); fprintf (stderr, "Usage: notmuch <command> [args...]\n");
fprintf (stderr, "\n"); fprintf (stderr, "\n");
fprintf (stderr, "Where <command> is one of the following:\n"); fprintf (stderr, "Where <command> and [args...] are as follows:\n");
fprintf (stderr, "\n"); fprintf (stderr, "\n");
for (i = 0; i < ARRAY_SIZE (commands); i++) { for (i = 0; i < ARRAY_SIZE (commands); i++) {
@ -428,7 +458,15 @@ main (int argc, char *argv[])
return (command->function) (argc - 2, &argv[2]); return (command->function) (argc - 2, &argv[2]);
} }
fprintf (stderr, "Error: Unknown command '%s'\n\n", argv[1]); /* Don't complain about "help" being an unknown command when we're
about to provide exactly what's wanted anyway. */
if (strcmp (argv[1], "help") == 0 ||
strcmp (argv[1], "--help") == 0)
{
fprintf (stderr, "The notmuch mail system.\n\n");
} else {
fprintf (stderr, "Error: Unknown command '%s'\n\n", argv[1]);
}
usage (); usage ();
exit (1); exit (1);