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/* 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"
int
notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
{
notmuch_config_t *config;
notmuch_database_t *notmuch;
FILE *input;
char *line = NULL;
size_t line_size;
ssize_t line_len;
regex_t regex;
int rerr;
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;
if (argc) {
input = fopen (argv[0], "r");
if (input == NULL) {
fprintf (stderr, "Error opening %s for reading: %s\n",
argv[0], strerror (errno));
return 1;
}
} else {
printf ("No filename given. Reading dump from stdin.\n");
input = stdin;
}
/* Dump output is one line per message. We match a sequence of
* non-space characters for the message-id, then one or more
* spaces, then a list of space-separated tags as a sequence of
* characters within literal '(' and ')'. */
xregcomp (®ex,
"^([^ ]+) \\(([^)]*)\\)$",
REG_EXTENDED);
while ((line_len = getline (&line, &line_size, input)) != -1) {
regmatch_t match[3];
char *message_id, *file_tags, *tag, *next;
notmuch_message_t *message = NULL;
notmuch_status_t status;
notmuch_tags_t *db_tags;
char *db_tags_str;
chomp_newline (line);
rerr = xregexec (®ex, line, 3, match, 0);
if (rerr == REG_NOMATCH)
{
fprintf (stderr, "Warning: Ignoring invalid input line: %s\n",
line);
continue;
}
message_id = xstrndup (line + match[1].rm_so,
match[1].rm_eo - match[1].rm_so);
file_tags = xstrndup (line + match[2].rm_so,
match[2].rm_eo - match[2].rm_so);
message = notmuch_database_find_message (notmuch, message_id);
if (message == NULL) {
fprintf (stderr, "Warning: Cannot apply tags to missing message: %s\n",
message_id);
goto NEXT_LINE;
}
db_tags_str = NULL;
for (db_tags = notmuch_message_get_tags (message);
notmuch_tags_valid (db_tags);
notmuch_tags_move_to_next (db_tags))
{
const char *tag = notmuch_tags_get (db_tags);
if (db_tags_str)
db_tags_str = talloc_asprintf_append (db_tags_str, " %s", tag);
else
db_tags_str = talloc_strdup (message, tag);
}
if (((file_tags == NULL || *file_tags == '\0') &&
(db_tags_str == NULL || *db_tags_str == '\0')) ||
(file_tags && db_tags_str && strcmp (file_tags, db_tags_str) == 0))
{
goto NEXT_LINE;
}
notmuch_message_freeze (message);
notmuch_message_remove_all_tags (message);
next = file_tags;
while (next) {
tag = strsep (&next, " ");
if (*tag == '\0')
continue;
status = notmuch_message_add_tag (message, tag);
if (status) {
fprintf (stderr,
"Error applying tag %s to message %s:\n",
tag, message_id);
fprintf (stderr, "%s\n",
notmuch_status_to_string (status));
}
}
notmuch_message_thaw (message);
NEXT_LINE:
if (message)
notmuch_message_destroy (message);
message = NULL;
free (message_id);
free (file_tags);
}
regfree (®ex);
if (line)
free (line);
notmuch_database_close (notmuch);
if (input != stdin)
fclose (input);
return 0;
}
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