notmuch/notmuch-tag.c
David Bremner 61f0a5b8ee cli: change argument parsing convention for subcommands
previously we deleted the subcommand name from argv before passing to
the subcommand. In this version, the deletion is done in the actual
subcommands. Although this causes some duplication of code, it allows
us to be more flexible about how we parse command line arguments in
the subcommand, including possibly using off-the-shelf routines like
getopt_long that expect the name of the command in argv[0].
2011-10-22 19:42:54 -03:00

143 lines
3.9 KiB
C

/* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2009 Carl Worth
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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/ .
*
* Author: Carl Worth <cworth@cworth.org>
*/
#include "notmuch-client.h"
static volatile sig_atomic_t interrupted;
static void
handle_sigint (unused (int sig))
{
static char msg[] = "Stopping... \n";
write(2, msg, sizeof(msg)-1);
interrupted = 1;
}
int
notmuch_tag_command (void *ctx, unused (int argc), unused (char *argv[]))
{
int *add_tags, *remove_tags;
int add_tags_count = 0;
int remove_tags_count = 0;
char *query_string;
notmuch_config_t *config;
notmuch_database_t *notmuch;
notmuch_query_t *query;
notmuch_messages_t *messages;
notmuch_message_t *message;
struct sigaction action;
notmuch_bool_t synchronize_flags;
int i;
/* Setup our handler for SIGINT */
memset (&action, 0, sizeof (struct sigaction));
action.sa_handler = handle_sigint;
sigemptyset (&action.sa_mask);
action.sa_flags = SA_RESTART;
sigaction (SIGINT, &action, NULL);
add_tags = talloc_size (ctx, argc * sizeof (int));
if (add_tags == NULL) {
fprintf (stderr, "Out of memory.\n");
return 1;
}
remove_tags = talloc_size (ctx, argc * sizeof (int));
if (remove_tags == NULL) {
fprintf (stderr, "Out of memory.\n");
return 1;
}
argc--; argv++; /* skip subcommand argument */
for (i = 0; i < argc; i++) {
if (strcmp (argv[i], "--") == 0) {
i++;
break;
}
if (argv[i][0] == '+') {
add_tags[add_tags_count++] = i;
} else if (argv[i][0] == '-') {
remove_tags[remove_tags_count++] = i;
} else {
break;
}
}
if (add_tags_count == 0 && remove_tags_count == 0) {
fprintf (stderr, "Error: 'notmuch tag' requires at least one tag to add or remove.\n");
return 1;
}
query_string = query_string_from_args (ctx, argc - i, &argv[i]);
if (*query_string == '\0') {
fprintf (stderr, "Error: notmuch tag requires at least one search term.\n");
return 1;
}
config = notmuch_config_open (ctx, NULL, NULL);
if (config == NULL)
return 1;
notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_WRITE);
if (notmuch == NULL)
return 1;
synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);
query = notmuch_query_create (notmuch, query_string);
if (query == NULL) {
fprintf (stderr, "Out of memory.\n");
return 1;
}
/* tagging is not interested in any special sort order */
notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
for (messages = notmuch_query_search_messages (query);
notmuch_messages_valid (messages) && !interrupted;
notmuch_messages_move_to_next (messages))
{
message = notmuch_messages_get (messages);
notmuch_message_freeze (message);
for (i = 0; i < remove_tags_count; i++)
notmuch_message_remove_tag (message,
argv[remove_tags[i]] + 1);
for (i = 0; i < add_tags_count; i++)
notmuch_message_add_tag (message, argv[add_tags[i]] + 1);
notmuch_message_thaw (message);
if (synchronize_flags)
notmuch_message_tags_to_maildir_flags (message);
notmuch_message_destroy (message);
}
notmuch_query_destroy (query);
notmuch_database_close (notmuch);
return interrupted;
}