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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"
#include "dump-restore-private.h"
#include "string-util.h"
static int
database_dump_file (notmuch_database_t *notmuch, FILE *output,
const char *query_str, int output_format)
{
notmuch_query_t *query;
notmuch_messages_t *messages;
notmuch_message_t *message;
notmuch_tags_t *tags;
if (! query_str)
query_str = "";
query = notmuch_query_create (notmuch, query_str);
if (query == NULL) {
fprintf (stderr, "Out of memory\n");
return EXIT_FAILURE;
}
/* Don't ask xapian to sort by Message-ID. Xapian optimizes returning the
* first results quickly at the expense of total time.
*/
notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
char *buffer = NULL;
size_t buffer_size = 0;
for (messages = notmuch_query_search_messages (query);
notmuch_messages_valid (messages);
notmuch_messages_move_to_next (messages)) {
int first = 1;
const char *message_id;
message = notmuch_messages_get (messages);
message_id = notmuch_message_get_message_id (message);
if (output_format == DUMP_FORMAT_BATCH_TAG &&
strchr (message_id, '\n')) {
/* This will produce a line break in the output, which
* would be difficult to handle in tools. However, it's
* also impossible to produce an email containing a line
* break in a message ID because of unfolding, so we can
* safely disallow it. */
fprintf (stderr, "Warning: skipping message id containing line break: \"%s\"\n", message_id);
notmuch_message_destroy (message);
continue;
}
if (output_format == DUMP_FORMAT_SUP) {
fprintf (output, "%s (", message_id);
}
for (tags = notmuch_message_get_tags (message);
notmuch_tags_valid (tags);
notmuch_tags_move_to_next (tags)) {
const char *tag_str = notmuch_tags_get (tags);
if (! first)
fputs (" ", output);
first = 0;
if (output_format == DUMP_FORMAT_SUP) {
fputs (tag_str, output);
} else {
if (hex_encode (notmuch, tag_str,
&buffer, &buffer_size) != HEX_SUCCESS) {
fprintf (stderr, "Error: failed to hex-encode tag %s\n",
tag_str);
return EXIT_FAILURE;
}
fprintf (output, "+%s", buffer);
}
}
if (output_format == DUMP_FORMAT_SUP) {
fputs (")\n", output);
} else {
if (make_boolean_term (notmuch, "id", message_id,
&buffer, &buffer_size)) {
fprintf (stderr, "Error quoting message id %s: %s\n",
message_id, strerror (errno));
return EXIT_FAILURE;
}
fprintf (output, " -- %s\n", buffer);
}
notmuch_message_destroy (message);
}
notmuch_query_destroy (query);
return EXIT_SUCCESS;
}
int
notmuch_dump_command (notmuch_config_t *config, int argc, char *argv[])
{
notmuch_database_t *notmuch;
FILE *output = stdout;
const char *query_str = NULL;
int ret;
if (notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_ONLY, ¬much))
return EXIT_FAILURE;
char *output_file_name = NULL;
int opt_index;
int output_format = DUMP_FORMAT_BATCH_TAG;
notmuch_opt_desc_t options[] = {
{ NOTMUCH_OPT_KEYWORD, &output_format, "format", 'f',
(notmuch_keyword_t []){ { "sup", DUMP_FORMAT_SUP },
{ "batch-tag", DUMP_FORMAT_BATCH_TAG },
{ 0, 0 } } },
{ NOTMUCH_OPT_STRING, &output_file_name, "output", 'o', 0 },
{ 0, 0, 0, 0, 0 }
};
opt_index = parse_arguments (argc, argv, options, 1);
if (opt_index < 0)
return EXIT_FAILURE;
if (output_file_name) {
output = fopen (output_file_name, "w");
if (output == NULL) {
fprintf (stderr, "Error opening %s for writing: %s\n",
output_file_name, strerror (errno));
return EXIT_FAILURE;
}
}
if (opt_index < argc) {
query_str = query_string_from_args (notmuch, argc - opt_index, argv + opt_index);
if (query_str == NULL) {
fprintf (stderr, "Out of memory.\n");
return EXIT_FAILURE;
}
}
ret = database_dump_file (notmuch, output, query_str, output_format);
if (output != stdout)
fclose (output);
notmuch_database_destroy (notmuch);
return ret;
}
|