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 https://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;
100 notmuch_status_t status;
102 int ret = NOTMUCH_STATUS_SUCCESS;
104 if (! (flags & TAG_FLAG_REMOVE_ALL)) {
105 /* Optimize the query so it excludes messages that already
106 * have the specified set of tags. */
107 query_string = _optimize_tag_query (ctx, query_string, tag_ops);
108 if (query_string == NULL) {
109 fprintf (stderr, "Out of memory.\n");
112 flags |= TAG_FLAG_PRE_OPTIMIZED;
115 query = notmuch_query_create (notmuch, query_string);
117 fprintf (stderr, "Out of memory.\n");
121 /* tagging is not interested in any special sort order */
122 notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
124 status = notmuch_query_search_messages (query, &messages);
125 if (print_status_query ("notmuch tag", query, status))
129 notmuch_messages_valid (messages) && ! interrupted;
130 notmuch_messages_move_to_next (messages)) {
131 message = notmuch_messages_get (messages);
132 ret = tag_op_list_apply (message, tag_ops, flags);
133 notmuch_message_destroy (message);
134 if (ret != NOTMUCH_STATUS_SUCCESS)
138 notmuch_query_destroy (query);
140 return ret || interrupted;
144 tag_file (void *ctx, notmuch_database_t *notmuch, tag_op_flag_t flags,
148 char *query_string = NULL;
149 size_t line_size = 0;
153 tag_op_list_t *tag_ops;
155 tag_ops = tag_op_list_create (ctx);
156 if (tag_ops == NULL) {
157 fprintf (stderr, "Out of memory.\n");
161 while ((line_len = getline (&line, &line_size, input)) != -1 &&
164 ret = parse_tag_line (ctx, line, TAG_FLAG_NONE,
165 &query_string, tag_ops);
168 if (ret != TAG_PARSE_SKIPPED)
169 /* remember there has been problematic lines */
178 ret = tag_query (ctx, notmuch, query_string, tag_ops, flags);
190 notmuch_tag_command (notmuch_config_t *config, int argc, char *argv[])
192 tag_op_list_t *tag_ops = NULL;
193 char *query_string = NULL;
194 notmuch_database_t *notmuch;
195 struct sigaction action;
196 tag_op_flag_t tag_flags = TAG_FLAG_NONE;
197 notmuch_bool_t batch = FALSE;
198 notmuch_bool_t remove_all = FALSE;
200 char *input_file_name = NULL;
204 /* Set up our handler for SIGINT */
205 memset (&action, 0, sizeof (struct sigaction));
206 action.sa_handler = handle_sigint;
207 sigemptyset (&action.sa_mask);
208 action.sa_flags = SA_RESTART;
209 sigaction (SIGINT, &action, NULL);
211 notmuch_opt_desc_t options[] = {
212 { NOTMUCH_OPT_BOOLEAN, &batch, "batch", 0, 0 },
213 { NOTMUCH_OPT_STRING, &input_file_name, "input", 'i', 0 },
214 { NOTMUCH_OPT_BOOLEAN, &remove_all, "remove-all", 0, 0 },
215 { NOTMUCH_OPT_INHERIT, (void *) ¬much_shared_options, NULL, 0, 0 },
219 opt_index = parse_arguments (argc, argv, options, 1);
223 notmuch_process_shared_options (argv[0]);
225 if (input_file_name) {
227 input = fopen (input_file_name, "r");
229 fprintf (stderr, "Error opening %s for reading: %s\n",
230 input_file_name, strerror (errno));
236 if (opt_index != argc) {
237 fprintf (stderr, "Can't specify both cmdline and stdin!\n");
241 tag_ops = tag_op_list_create (config);
242 if (tag_ops == NULL) {
243 fprintf (stderr, "Out of memory.\n");
247 if (parse_tag_command_line (config, argc - opt_index, argv + opt_index,
248 &query_string, tag_ops))
251 if (tag_op_list_size (tag_ops) == 0 && ! remove_all) {
252 fprintf (stderr, "Error: 'notmuch tag' requires at least one tag to add or remove.\n");
256 if (*query_string == '\0') {
257 fprintf (stderr, "Error: notmuch tag requires at least one search term.\n");
262 if (notmuch_database_open (notmuch_config_get_database_path (config),
263 NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))
266 notmuch_exit_if_unmatched_db_uuid (notmuch);
268 if (notmuch_config_get_maildir_synchronize_flags (config))
269 tag_flags |= TAG_FLAG_MAILDIR_SYNC;
272 tag_flags |= TAG_FLAG_REMOVE_ALL;
275 ret = tag_file (config, notmuch, tag_flags, input);
277 ret = tag_query (config, notmuch, query_string, tag_ops, tag_flags);
279 notmuch_database_destroy (notmuch);
284 return ret || interrupted ? EXIT_FAILURE : EXIT_SUCCESS;