mirror of
https://git.notmuchmail.org/git/notmuch
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6cdd34a4c7
I think it would be no real problem to cut and paste the gdb based error message test from count to the other clients modified here, but I'm not currently convinced it's worth the trouble since the code path being tested is almost the the same, and the tests are relatively heavyweight.
262 lines
7 KiB
C
262 lines
7 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 "string-util.h"
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#include <zlib.h>
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static int
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database_dump_file (notmuch_database_t *notmuch, gzFile output,
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const char *query_str, int output_format)
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{
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notmuch_query_t *query;
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notmuch_messages_t *messages;
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notmuch_message_t *message;
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notmuch_tags_t *tags;
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if (! query_str)
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query_str = "";
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query = notmuch_query_create (notmuch, query_str);
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if (query == NULL) {
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fprintf (stderr, "Out of memory\n");
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return EXIT_FAILURE;
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}
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/* Don't ask xapian to sort by Message-ID. Xapian optimizes returning the
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* first results quickly at the expense of total time.
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*/
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notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
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char *buffer = NULL;
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size_t buffer_size = 0;
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notmuch_status_t status;
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status = notmuch_query_search_messages_st (query, &messages);
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if (print_status_query ("notmuch dump", query, status))
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return EXIT_FAILURE;
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for (;
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notmuch_messages_valid (messages);
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notmuch_messages_move_to_next (messages)) {
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int first = 1;
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const char *message_id;
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message = notmuch_messages_get (messages);
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message_id = notmuch_message_get_message_id (message);
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if (output_format == DUMP_FORMAT_BATCH_TAG &&
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strchr (message_id, '\n')) {
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/* This will produce a line break in the output, which
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* would be difficult to handle in tools. However, it's
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* also impossible to produce an email containing a line
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* break in a message ID because of unfolding, so we can
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* safely disallow it. */
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fprintf (stderr, "Warning: skipping message id containing line break: \"%s\"\n", message_id);
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notmuch_message_destroy (message);
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continue;
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}
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if (output_format == DUMP_FORMAT_SUP) {
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gzprintf (output, "%s (", message_id);
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}
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for (tags = notmuch_message_get_tags (message);
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notmuch_tags_valid (tags);
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notmuch_tags_move_to_next (tags)) {
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const char *tag_str = notmuch_tags_get (tags);
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if (! first)
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gzputs (output, " ");
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first = 0;
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if (output_format == DUMP_FORMAT_SUP) {
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gzputs (output, tag_str);
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} else {
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if (hex_encode (notmuch, tag_str,
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&buffer, &buffer_size) != HEX_SUCCESS) {
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fprintf (stderr, "Error: failed to hex-encode tag %s\n",
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tag_str);
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return EXIT_FAILURE;
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}
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gzprintf (output, "+%s", buffer);
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}
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}
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if (output_format == DUMP_FORMAT_SUP) {
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gzputs (output, ")\n");
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} else {
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if (make_boolean_term (notmuch, "id", message_id,
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&buffer, &buffer_size)) {
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fprintf (stderr, "Error quoting message id %s: %s\n",
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message_id, strerror (errno));
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return EXIT_FAILURE;
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}
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gzprintf (output, " -- %s\n", buffer);
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}
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notmuch_message_destroy (message);
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}
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notmuch_query_destroy (query);
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return EXIT_SUCCESS;
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}
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/* Dump database into output_file_name if it's non-NULL, stdout
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* otherwise.
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*/
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int
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notmuch_database_dump (notmuch_database_t *notmuch,
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const char *output_file_name,
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const char *query_str,
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dump_format_t output_format,
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notmuch_bool_t gzip_output)
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{
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gzFile output = NULL;
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const char *mode = gzip_output ? "w9" : "wT";
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const char *name_for_error = output_file_name ? output_file_name : "stdout";
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char *tempname = NULL;
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int outfd = -1;
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int ret = -1;
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if (output_file_name) {
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tempname = talloc_asprintf (notmuch, "%s.XXXXXX", output_file_name);
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outfd = mkstemp (tempname);
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} else {
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outfd = dup (STDOUT_FILENO);
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}
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if (outfd < 0) {
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fprintf (stderr, "Bad output file %s\n", name_for_error);
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goto DONE;
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}
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output = gzdopen (outfd, mode);
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if (output == NULL) {
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fprintf (stderr, "Error opening %s for (gzip) writing: %s\n",
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name_for_error, strerror (errno));
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if (close (outfd))
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fprintf (stderr, "Error closing %s during shutdown: %s\n",
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name_for_error, strerror (errno));
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goto DONE;
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}
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ret = database_dump_file (notmuch, output, query_str, output_format);
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if (ret) goto DONE;
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ret = gzflush (output, Z_FINISH);
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if (ret) {
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fprintf (stderr, "Error flushing output: %s\n", gzerror (output, NULL));
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goto DONE;
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}
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if (output_file_name) {
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ret = fsync (outfd);
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if (ret) {
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fprintf (stderr, "Error syncing %s to disk: %s\n",
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name_for_error, strerror (errno));
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goto DONE;
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}
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}
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if (gzclose_w (output) != Z_OK) {
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fprintf (stderr, "Error closing %s: %s\n", name_for_error,
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gzerror (output, NULL));
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ret = EXIT_FAILURE;
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output = NULL;
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goto DONE;
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}
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if (output_file_name) {
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ret = rename (tempname, output_file_name);
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if (ret) {
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fprintf (stderr, "Error renaming %s to %s: %s\n",
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tempname, output_file_name, strerror (errno));
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goto DONE;
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}
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}
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DONE:
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if (ret != EXIT_SUCCESS && output)
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(void) gzclose_w (output);
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if (ret != EXIT_SUCCESS && output_file_name)
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(void) unlink (tempname);
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return ret;
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}
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int
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notmuch_dump_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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const char *query_str = NULL;
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int ret;
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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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notmuch_exit_if_unmatched_db_uuid (notmuch);
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char *output_file_name = NULL;
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int opt_index;
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int output_format = DUMP_FORMAT_BATCH_TAG;
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notmuch_bool_t gzip_output = 0;
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notmuch_opt_desc_t options[] = {
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{ NOTMUCH_OPT_KEYWORD, &output_format, "format", 'f',
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(notmuch_keyword_t []){ { "sup", DUMP_FORMAT_SUP },
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{ "batch-tag", DUMP_FORMAT_BATCH_TAG },
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{ 0, 0 } } },
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{ NOTMUCH_OPT_STRING, &output_file_name, "output", 'o', 0 },
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{ NOTMUCH_OPT_BOOLEAN, &gzip_output, "gzip", 'z', 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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return EXIT_FAILURE;
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notmuch_process_shared_options (argv[0]);
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if (opt_index < argc) {
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query_str = query_string_from_args (notmuch, argc - opt_index, argv + opt_index);
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if (query_str == NULL) {
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fprintf (stderr, "Out of memory.\n");
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return EXIT_FAILURE;
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}
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}
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ret = notmuch_database_dump (notmuch, output_file_name, query_str,
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output_format, gzip_output);
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notmuch_database_destroy (notmuch);
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return ret;
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}
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