1 /* notmuch - Not much of an email program, (just index and search)
3 * Copyright © 2009 Carl Worth
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see http://www.gnu.org/licenses/ .
18 * Author: Carl Worth <cworth@cworth.org>
21 #include "notmuch-client.h"
23 static volatile sig_atomic_t interrupted;
26 handle_sigint (unused (int sig))
28 static char msg[] = "Stopping... \n";
30 /* This write is "opportunistic", so it's okay to ignore the
31 * result. It is not required for correctness, and if it does
32 * fail or produce a short write, we want to get out of the signal
33 * handler as quickly as possible, not retry it. */
34 IGNORE_RESULT (write (2, msg, sizeof(msg)-1));
39 _escape_tag (char *buf, const char *tag)
43 /* Boolean terms surrounded by double quotes can contain any
44 * character. Double quotes are quoted by doubling them. */
57 _optimize_tag_query (void *ctx, const char *orig_query_string, char *argv[],
58 int *add_tags, int add_tags_count,
59 int *remove_tags, int remove_tags_count)
61 /* This is subtler than it looks. Xapian ignores the '-' operator
62 * at the beginning both queries and parenthesized groups and,
63 * furthermore, the presence of a '-' operator at the beginning of
64 * a group can inhibit parsing of the previous operator. Hence,
65 * the user-provided query MUST appear first, but it is safe to
66 * parenthesize and the exclusion part of the query must not use
67 * the '-' operator (though the NOT operator is fine). */
69 char *escaped, *query_string;
70 const char *join = "";
72 unsigned int max_tag_len = 0;
74 /* Allocate a buffer for escaping tags. This is large enough to
75 * hold a fully escaped tag with every character doubled plus
76 * enclosing quotes and a NUL. */
77 for (i = 0; i < add_tags_count; i++)
78 if (strlen (argv[add_tags[i]] + 1) > max_tag_len)
79 max_tag_len = strlen (argv[add_tags[i]] + 1);
80 for (i = 0; i < remove_tags_count; i++)
81 if (strlen (argv[remove_tags[i]] + 1) > max_tag_len)
82 max_tag_len = strlen (argv[remove_tags[i]] + 1);
83 escaped = talloc_array(ctx, char, max_tag_len * 2 + 3);
87 /* Build the new query string */
88 if (strcmp (orig_query_string, "*") == 0)
89 query_string = talloc_strdup (ctx, "(");
91 query_string = talloc_asprintf (ctx, "( %s ) and (", orig_query_string);
93 for (i = 0; i < add_tags_count && query_string; i++) {
94 query_string = talloc_asprintf_append_buffer (
95 query_string, "%snot tag:%s", join,
96 _escape_tag (escaped, argv[add_tags[i]] + 1));
99 for (i = 0; i < remove_tags_count && query_string; i++) {
100 query_string = talloc_asprintf_append_buffer (
101 query_string, "%stag:%s", join,
102 _escape_tag (escaped, argv[remove_tags[i]] + 1));
107 query_string = talloc_strdup_append_buffer (query_string, ")");
109 talloc_free (escaped);
114 notmuch_tag_command (void *ctx, unused (int argc), unused (char *argv[]))
116 int *add_tags, *remove_tags;
117 int add_tags_count = 0;
118 int remove_tags_count = 0;
120 notmuch_config_t *config;
121 notmuch_database_t *notmuch;
122 notmuch_query_t *query;
123 notmuch_messages_t *messages;
124 notmuch_message_t *message;
125 struct sigaction action;
126 notmuch_bool_t synchronize_flags;
129 /* Setup our handler for SIGINT */
130 memset (&action, 0, sizeof (struct sigaction));
131 action.sa_handler = handle_sigint;
132 sigemptyset (&action.sa_mask);
133 action.sa_flags = SA_RESTART;
134 sigaction (SIGINT, &action, NULL);
136 add_tags = talloc_size (ctx, argc * sizeof (int));
137 if (add_tags == NULL) {
138 fprintf (stderr, "Out of memory.\n");
142 remove_tags = talloc_size (ctx, argc * sizeof (int));
143 if (remove_tags == NULL) {
144 fprintf (stderr, "Out of memory.\n");
148 argc--; argv++; /* skip subcommand argument */
150 for (i = 0; i < argc; i++) {
151 if (strcmp (argv[i], "--") == 0) {
155 if (argv[i][0] == '+') {
156 add_tags[add_tags_count++] = i;
157 } else if (argv[i][0] == '-') {
158 remove_tags[remove_tags_count++] = i;
164 if (add_tags_count == 0 && remove_tags_count == 0) {
165 fprintf (stderr, "Error: 'notmuch tag' requires at least one tag to add or remove.\n");
169 query_string = query_string_from_args (ctx, argc - i, &argv[i]);
171 if (*query_string == '\0') {
172 fprintf (stderr, "Error: notmuch tag requires at least one search term.\n");
176 /* Optimize the query so it excludes messages that already have
177 * the specified set of tags. */
178 query_string = _optimize_tag_query (ctx, query_string, argv,
179 add_tags, add_tags_count,
180 remove_tags, remove_tags_count);
181 if (query_string == NULL) {
182 fprintf (stderr, "Out of memory.\n");
186 config = notmuch_config_open (ctx, NULL, NULL);
190 notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
191 NOTMUCH_DATABASE_MODE_READ_WRITE);
195 synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);
197 query = notmuch_query_create (notmuch, query_string);
199 fprintf (stderr, "Out of memory.\n");
203 /* tagging is not interested in any special sort order */
204 notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
206 for (messages = notmuch_query_search_messages (query);
207 notmuch_messages_valid (messages) && !interrupted;
208 notmuch_messages_move_to_next (messages))
210 message = notmuch_messages_get (messages);
212 notmuch_message_freeze (message);
214 for (i = 0; i < remove_tags_count; i++)
215 notmuch_message_remove_tag (message,
216 argv[remove_tags[i]] + 1);
218 for (i = 0; i < add_tags_count; i++)
219 notmuch_message_add_tag (message, argv[add_tags[i]] + 1);
221 notmuch_message_thaw (message);
223 if (synchronize_flags)
224 notmuch_message_tags_to_maildir_flags (message);
226 notmuch_message_destroy (message);
229 notmuch_query_destroy (query);
230 notmuch_database_close (notmuch);