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 #include "string-util.h"
25 static volatile sig_atomic_t interrupted;
28 handle_sigint (unused (int sig))
30 static char msg[] = "Stopping... \n";
32 /* This write is "opportunistic", so it's okay to ignore the
33 * result. It is not required for correctness, and if it does
34 * fail or produce a short write, we want to get out of the signal
35 * handler as quickly as possible, not retry it. */
36 IGNORE_RESULT (write (2, msg, sizeof (msg) - 1));
42 _optimize_tag_query (void *ctx, const char *orig_query_string,
43 const tag_op_list_t *list)
45 /* This is subtler than it looks. Xapian ignores the '-' operator
46 * at the beginning both queries and parenthesized groups and,
47 * furthermore, the presence of a '-' operator at the beginning of
48 * a group can inhibit parsing of the previous operator. Hence,
49 * the user-provided query MUST appear first, but it is safe to
50 * parenthesize and the exclusion part of the query must not use
51 * the '-' operator (though the NOT operator is fine). */
54 size_t escaped_len = 0;
56 const char *join = "";
59 /* Don't optimize if there are no tag changes. */
60 if (tag_op_list_size (list) == 0)
61 return talloc_strdup (ctx, orig_query_string);
63 /* Build the new query string */
64 if (strcmp (orig_query_string, "*") == 0)
65 query_string = talloc_strdup (ctx, "(");
67 query_string = talloc_asprintf (ctx, "( %s ) and (", orig_query_string);
69 for (i = 0; i < tag_op_list_size (list) && query_string; i++) {
70 /* XXX in case of OOM, query_string will be deallocated when
71 * ctx is, which might be at shutdown */
72 if (make_boolean_term (ctx,
73 "tag", tag_op_list_tag (list, i),
74 &escaped, &escaped_len))
77 query_string = talloc_asprintf_append_buffer (
78 query_string, "%s%s%s", join,
79 tag_op_list_isremove (list, i) ? "" : "not ",
85 query_string = talloc_strdup_append_buffer (query_string, ")");
87 talloc_free (escaped);
91 /* Tag messages matching 'query_string' according to 'tag_ops'
94 tag_query (void *ctx, notmuch_database_t *notmuch, const char *query_string,
95 tag_op_list_t *tag_ops, tag_op_flag_t flags)
97 notmuch_query_t *query;
98 notmuch_messages_t *messages;
99 notmuch_message_t *message;
101 /* Optimize the query so it excludes messages that already have
102 * the specified set of tags. */
103 query_string = _optimize_tag_query (ctx, query_string, tag_ops);
104 if (query_string == NULL) {
105 fprintf (stderr, "Out of memory.\n");
109 query = notmuch_query_create (notmuch, query_string);
111 fprintf (stderr, "Out of memory.\n");
115 /* tagging is not interested in any special sort order */
116 notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
118 for (messages = notmuch_query_search_messages (query);
119 notmuch_messages_valid (messages) && ! interrupted;
120 notmuch_messages_move_to_next (messages)) {
121 message = notmuch_messages_get (messages);
122 tag_op_list_apply (message, tag_ops, flags | TAG_FLAG_PRE_OPTIMIZED);
123 notmuch_message_destroy (message);
126 notmuch_query_destroy (query);
132 notmuch_tag_command (void *ctx, int argc, char *argv[])
134 tag_op_list_t *tag_ops = NULL;
135 char *query_string = NULL;
136 notmuch_config_t *config;
137 notmuch_database_t *notmuch;
138 struct sigaction action;
139 tag_op_flag_t tag_flags = TAG_FLAG_NONE;
142 /* Setup our handler for SIGINT */
143 memset (&action, 0, sizeof (struct sigaction));
144 action.sa_handler = handle_sigint;
145 sigemptyset (&action.sa_mask);
146 action.sa_flags = SA_RESTART;
147 sigaction (SIGINT, &action, NULL);
149 tag_ops = tag_op_list_create (ctx);
150 if (tag_ops == NULL) {
151 fprintf (stderr, "Out of memory.\n");
155 if (parse_tag_command_line (ctx, argc - 1, argv + 1,
156 &query_string, tag_ops))
159 config = notmuch_config_open (ctx, NULL, NULL);
163 if (notmuch_database_open (notmuch_config_get_database_path (config),
164 NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))
167 if (notmuch_config_get_maildir_synchronize_flags (config))
168 tag_flags |= TAG_FLAG_MAILDIR_SYNC;
170 ret = tag_query (ctx, notmuch, query_string, tag_ops, tag_flags);
172 notmuch_database_destroy (notmuch);