mirror of
https://git.notmuchmail.org/git/notmuch
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f76d8f82dd
The function notmuch_exit_if_unmatched_db_uuid is split from notmuch_process_shared_options because it needs an open notmuch database. There are two exceptional cases in uuid handling. 1) notmuch config and notmuch setup don't currently open the database, so it doesn't make sense to check the UUID. 2) notmuch compact opens the database inside the library, so we either need to open the database just to check uuid, or change the API.
326 lines
8.4 KiB
C
326 lines
8.4 KiB
C
/* notmuch - Not much of an email program, (just index and search)
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*
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* Copyright © 2009 Carl Worth
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://www.gnu.org/licenses/ .
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*
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* Author: Carl Worth <cworth@cworth.org>
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*/
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#include "notmuch-client.h"
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#include "hex-escape.h"
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#include "tag-util.h"
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#include "string-util.h"
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#include "zlib-extra.h"
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static regex_t regex;
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/* Non-zero return indicates an error in retrieving the message,
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* or in applying the tags. Missing messages are reported, but not
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* considered errors.
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*/
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static int
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tag_message (unused (void *ctx),
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notmuch_database_t *notmuch,
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const char *message_id,
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tag_op_list_t *tag_ops,
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tag_op_flag_t flags)
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{
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notmuch_status_t status;
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notmuch_message_t *message = NULL;
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int ret = 0;
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status = notmuch_database_find_message (notmuch, message_id, &message);
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if (status) {
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fprintf (stderr, "Error applying tags to message %s: %s\n",
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message_id, notmuch_status_to_string (status));
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return 1;
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}
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if (message == NULL) {
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fprintf (stderr, "Warning: cannot apply tags to missing message: %s\n",
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message_id);
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/* We consider this a non-fatal error. */
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return 0;
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}
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/* In order to detect missing messages, this check/optimization is
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* intentionally done *after* first finding the message. */
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if ((flags & TAG_FLAG_REMOVE_ALL) || tag_op_list_size (tag_ops))
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ret = tag_op_list_apply (message, tag_ops, flags);
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notmuch_message_destroy (message);
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return ret;
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}
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/* Sup dump output is one line per message. We match a sequence of
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* non-space characters for the message-id, then one or more
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* spaces, then a list of space-separated tags as a sequence of
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* characters within literal '(' and ')'. */
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static int
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parse_sup_line (void *ctx, char *line,
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char **query_str, tag_op_list_t *tag_ops)
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{
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regmatch_t match[3];
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char *file_tags;
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int rerr;
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tag_op_list_reset (tag_ops);
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chomp_newline (line);
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/* Silently ignore blank lines */
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if (line[0] == '\0') {
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return 1;
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}
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rerr = xregexec (®ex, line, 3, match, 0);
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if (rerr == REG_NOMATCH) {
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fprintf (stderr, "Warning: Ignoring invalid sup format line: %s\n",
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line);
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return 1;
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}
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*query_str = talloc_strndup_debug (ctx, line + match[1].rm_so,
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match[1].rm_eo - match[1].rm_so);
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file_tags = talloc_strndup_debug (ctx, line + match[2].rm_so,
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match[2].rm_eo - match[2].rm_so);
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char *tok = file_tags;
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size_t tok_len = 0;
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tag_op_list_reset (tag_ops);
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while ((tok = strtok_len (tok + tok_len, " ", &tok_len)) != NULL) {
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if (*(tok + tok_len) != '\0') {
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*(tok + tok_len) = '\0';
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tok_len++;
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}
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if (tag_op_list_append (tag_ops, tok, FALSE))
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return -1;
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}
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return 0;
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}
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int
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notmuch_restore_command (notmuch_config_t *config, int argc, char *argv[])
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{
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notmuch_database_t *notmuch;
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notmuch_bool_t accumulate = FALSE;
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tag_op_flag_t flags = 0;
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tag_op_list_t *tag_ops;
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char *input_file_name = NULL;
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const char *name_for_error = NULL;
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gzFile input = NULL;
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char *line = NULL;
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void *line_ctx = NULL;
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ssize_t line_len;
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int ret = 0;
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int opt_index;
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int input_format = DUMP_FORMAT_AUTO;
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if (notmuch_database_open (notmuch_config_get_database_path (config),
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NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))
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return EXIT_FAILURE;
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if (notmuch_config_get_maildir_synchronize_flags (config))
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flags |= TAG_FLAG_MAILDIR_SYNC;
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notmuch_opt_desc_t options[] = {
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{ NOTMUCH_OPT_KEYWORD, &input_format, "format", 'f',
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(notmuch_keyword_t []){ { "auto", DUMP_FORMAT_AUTO },
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{ "batch-tag", DUMP_FORMAT_BATCH_TAG },
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{ "sup", DUMP_FORMAT_SUP },
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{ 0, 0 } } },
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{ NOTMUCH_OPT_STRING, &input_file_name, "input", 'i', 0 },
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{ NOTMUCH_OPT_BOOLEAN, &accumulate, "accumulate", 'a', 0 },
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{ NOTMUCH_OPT_INHERIT, (void *) ¬much_shared_options, NULL, 0, 0 },
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{ 0, 0, 0, 0, 0 }
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};
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opt_index = parse_arguments (argc, argv, options, 1);
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if (opt_index < 0) {
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ret = EXIT_FAILURE;
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goto DONE;
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}
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notmuch_process_shared_options (argv[0]);
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notmuch_exit_if_unmatched_db_uuid (notmuch);
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name_for_error = input_file_name ? input_file_name : "stdin";
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if (! accumulate)
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flags |= TAG_FLAG_REMOVE_ALL;
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errno = 0;
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if (input_file_name)
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input = gzopen (input_file_name, "r");
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else {
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int infd = dup (STDIN_FILENO);
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if (infd < 0) {
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fprintf (stderr, "Error duping stdin: %s\n",
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strerror (errno));
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ret = EXIT_FAILURE;
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goto DONE;
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}
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input = gzdopen (infd, "r");
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if (! input)
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close (infd);
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}
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if (input == NULL) {
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fprintf (stderr, "Error opening %s for (gzip) reading: %s\n",
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name_for_error, strerror (errno));
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ret = EXIT_FAILURE;
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goto DONE;
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}
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if (opt_index < argc) {
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fprintf (stderr, "Unused positional parameter: %s\n", argv[opt_index]);
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ret = EXIT_FAILURE;
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goto DONE;
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}
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tag_ops = tag_op_list_create (config);
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if (tag_ops == NULL) {
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fprintf (stderr, "Out of memory.\n");
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ret = EXIT_FAILURE;
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goto DONE;
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}
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do {
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util_status_t status;
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status = gz_getline (line_ctx, &line, &line_len, input);
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/* empty input file not considered an error */
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if (status == UTIL_EOF) {
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ret = EXIT_SUCCESS;
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goto DONE;
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}
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if (status) {
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fprintf (stderr, "Error reading (gzipped) input: %s\n",
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gz_error_string(status, input));
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ret = EXIT_FAILURE;
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goto DONE;
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}
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} while ((line_len == 0) ||
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(line[0] == '#') ||
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/* the cast is safe because we checked about for line_len < 0 */
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(strspn (line, " \t\n") == (unsigned)line_len));
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char *p;
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for (p = line; (input_format == DUMP_FORMAT_AUTO) && *p; p++) {
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if (*p == '(')
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input_format = DUMP_FORMAT_SUP;
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}
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if (input_format == DUMP_FORMAT_AUTO)
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input_format = DUMP_FORMAT_BATCH_TAG;
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if (input_format == DUMP_FORMAT_SUP)
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if ( xregcomp (®ex,
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"^([^ ]+) \\(([^)]*)\\)$",
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REG_EXTENDED) )
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INTERNAL_ERROR ("compile time constant regex failed.");
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do {
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char *query_string, *prefix, *term;
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if (line_ctx != NULL)
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talloc_free (line_ctx);
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line_ctx = talloc_new (config);
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if (input_format == DUMP_FORMAT_SUP) {
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ret = parse_sup_line (line_ctx, line, &query_string, tag_ops);
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} else {
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ret = parse_tag_line (line_ctx, line, TAG_FLAG_BE_GENEROUS,
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&query_string, tag_ops);
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if (ret == 0) {
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ret = parse_boolean_term (line_ctx, query_string,
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&prefix, &term);
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if (ret && errno == EINVAL) {
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fprintf (stderr, "Warning: cannot parse query: %s (skipping)\n", query_string);
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continue;
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} else if (ret) {
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/* This is more fatal (e.g., out of memory) */
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fprintf (stderr, "Error parsing query: %s\n",
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strerror (errno));
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ret = 1;
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break;
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} else if (strcmp ("id", prefix) != 0) {
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fprintf (stderr, "Warning: not an id query: %s (skipping)\n", query_string);
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continue;
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}
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query_string = term;
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}
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}
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if (ret > 0)
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continue;
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if (ret < 0)
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break;
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ret = tag_message (line_ctx, notmuch, query_string,
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tag_ops, flags);
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if (ret)
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break;
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} while (! (ret = gz_getline (line_ctx, &line, &line_len, input)));
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/* EOF is normal loop termination condition, UTIL_SUCCESS is
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* impossible here */
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if (ret == UTIL_EOF) {
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ret = EXIT_SUCCESS;
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} else {
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fprintf (stderr, "Error reading (gzipped) input: %s\n",
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gz_error_string (ret, input));
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ret = EXIT_FAILURE;
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}
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/* currently this should not be after DONE: since we don't
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* know if the xregcomp was reached
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*/
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if (input_format == DUMP_FORMAT_SUP)
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regfree (®ex);
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DONE:
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if (line_ctx != NULL)
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talloc_free (line_ctx);
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if (notmuch)
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notmuch_database_destroy (notmuch);
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if (input && gzclose_r (input)) {
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fprintf (stderr, "Error closing %s: %s\n",
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name_for_error, gzerror (input, NULL));
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ret = EXIT_FAILURE;
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}
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return ret ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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