mirror of
https://git.notmuchmail.org/git/notmuch
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0f314c0c99
C99 stdbool turned 18 this year. There really is no reason to use our own, except in the library interface for backward compatibility. Convert the cli and test binaries to stdbool.
483 lines
14 KiB
C
483 lines
14 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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* Copyright © 2009 Keith Packard
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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 https://www.gnu.org/licenses/ .
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*
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* Authors: Carl Worth <cworth@cworth.org>
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* Keith Packard <keithp@keithp.com>
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*/
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#include "notmuch-client.h"
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/*
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* Notmuch subcommand hook.
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*
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* The return value will be used as notmuch exit status code,
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* preferrably EXIT_SUCCESS or EXIT_FAILURE.
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*/
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typedef int (*command_function_t) (notmuch_config_t *config, int argc, char *argv[]);
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typedef struct command {
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const char *name;
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command_function_t function;
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notmuch_config_mode_t config_mode;
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const char *summary;
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} command_t;
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static int
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notmuch_help_command (notmuch_config_t *config, int argc, char *argv[]);
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static int
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notmuch_command (notmuch_config_t *config, int argc, char *argv[]);
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static int
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_help_for (const char *topic);
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static bool print_version = false, print_help = false;
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const char *notmuch_requested_db_uuid = NULL;
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const notmuch_opt_desc_t notmuch_shared_options [] = {
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{ .opt_bool = &print_version, .name = "version" },
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{ .opt_bool = &print_help, .name = "help" },
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{ .opt_string = ¬much_requested_db_uuid, .name = "uuid" },
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{ }
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};
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/* any subcommand wanting to support these options should call
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* inherit notmuch_shared_options and call
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* notmuch_process_shared_options (subcommand_name);
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*/
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void
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notmuch_process_shared_options (const char *subcommand_name) {
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if (print_version) {
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printf ("notmuch " STRINGIFY(NOTMUCH_VERSION) "\n");
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exit (EXIT_SUCCESS);
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}
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if (print_help) {
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int ret = _help_for (subcommand_name);
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exit (ret);
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}
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}
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/* This is suitable for subcommands that do not actually open the
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* database.
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*/
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int notmuch_minimal_options (const char *subcommand_name,
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int argc, char **argv)
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{
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int opt_index;
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notmuch_opt_desc_t options[] = {
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{ .opt_inherit = notmuch_shared_options },
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{ }
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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 -1;
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/* We can't use argv here as it is sometimes NULL */
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notmuch_process_shared_options (subcommand_name);
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return opt_index;
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}
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static command_t commands[] = {
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{ NULL, notmuch_command, NOTMUCH_CONFIG_OPEN | NOTMUCH_CONFIG_CREATE,
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"Notmuch main command." },
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{ "setup", notmuch_setup_command, NOTMUCH_CONFIG_OPEN | NOTMUCH_CONFIG_CREATE,
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"Interactively set up notmuch for first use." },
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{ "new", notmuch_new_command, NOTMUCH_CONFIG_OPEN,
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"Find and import new messages to the notmuch database." },
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{ "insert", notmuch_insert_command, NOTMUCH_CONFIG_OPEN,
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"Add a new message into the maildir and notmuch database." },
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{ "search", notmuch_search_command, NOTMUCH_CONFIG_OPEN,
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"Search for messages matching the given search terms." },
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{ "address", notmuch_address_command, NOTMUCH_CONFIG_OPEN,
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"Get addresses from messages matching the given search terms." },
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{ "show", notmuch_show_command, NOTMUCH_CONFIG_OPEN,
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"Show all messages matching the search terms." },
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{ "count", notmuch_count_command, NOTMUCH_CONFIG_OPEN,
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"Count messages matching the search terms." },
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{ "reply", notmuch_reply_command, NOTMUCH_CONFIG_OPEN,
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"Construct a reply template for a set of messages." },
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{ "tag", notmuch_tag_command, NOTMUCH_CONFIG_OPEN,
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"Add/remove tags for all messages matching the search terms." },
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{ "dump", notmuch_dump_command, NOTMUCH_CONFIG_OPEN,
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"Create a plain-text dump of the tags for each message." },
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{ "restore", notmuch_restore_command, NOTMUCH_CONFIG_OPEN,
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"Restore the tags from the given dump file (see 'dump')." },
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{ "compact", notmuch_compact_command, NOTMUCH_CONFIG_OPEN,
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"Compact the notmuch database." },
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{ "reindex", notmuch_reindex_command, NOTMUCH_CONFIG_OPEN,
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"Re-index all messages matching the search terms." },
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{ "config", notmuch_config_command, NOTMUCH_CONFIG_OPEN,
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"Get or set settings in the notmuch configuration file." },
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{ "help", notmuch_help_command, NOTMUCH_CONFIG_CREATE, /* create but don't save config */
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"This message, or more detailed help for the named command." }
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};
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typedef struct help_topic {
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const char *name;
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const char *summary;
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} help_topic_t;
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static help_topic_t help_topics[] = {
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{ "search-terms",
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"Common search term syntax." },
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{ "hooks",
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"Hooks that will be run before or after certain commands." },
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};
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static command_t *
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find_command (const char *name)
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{
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size_t i;
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for (i = 0; i < ARRAY_SIZE (commands); i++)
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if ((!name && !commands[i].name) ||
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(name && commands[i].name && strcmp (name, commands[i].name) == 0))
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return &commands[i];
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return NULL;
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}
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int notmuch_format_version;
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static void
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usage (FILE *out)
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{
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command_t *command;
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help_topic_t *topic;
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unsigned int i;
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fprintf (out,
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"Usage: notmuch --help\n"
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" notmuch --version\n"
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" notmuch <command> [args...]\n");
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fprintf (out, "\n");
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fprintf (out, "The available commands are as follows:\n");
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fprintf (out, "\n");
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for (i = 0; i < ARRAY_SIZE (commands); i++) {
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command = &commands[i];
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if (command->name)
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fprintf (out, " %-12s %s\n", command->name, command->summary);
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}
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fprintf (out, "\n");
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fprintf (out, "Additional help topics are as follows:\n");
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fprintf (out, "\n");
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for (i = 0; i < ARRAY_SIZE (help_topics); i++) {
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topic = &help_topics[i];
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fprintf (out, " %-12s %s\n", topic->name, topic->summary);
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}
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fprintf (out, "\n");
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fprintf (out,
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"Use \"notmuch help <command or topic>\" for more details "
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"on each command or topic.\n\n");
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}
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void
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notmuch_exit_if_unsupported_format (void)
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{
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if (notmuch_format_version > NOTMUCH_FORMAT_CUR) {
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fprintf (stderr, "\
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A caller requested output format version %d, but the installed notmuch\n\
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CLI only supports up to format version %d. You may need to upgrade your\n\
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notmuch CLI.\n",
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notmuch_format_version, NOTMUCH_FORMAT_CUR);
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exit (NOTMUCH_EXIT_FORMAT_TOO_NEW);
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} else if (notmuch_format_version < NOTMUCH_FORMAT_MIN) {
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fprintf (stderr, "\
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A caller requested output format version %d, which is no longer supported\n\
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by the notmuch CLI (it requires at least version %d). You may need to\n\
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upgrade your notmuch front-end.\n",
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notmuch_format_version, NOTMUCH_FORMAT_MIN);
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exit (NOTMUCH_EXIT_FORMAT_TOO_OLD);
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} else if (notmuch_format_version < NOTMUCH_FORMAT_MIN_ACTIVE) {
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/* Warn about old version requests so compatibility issues are
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* less likely when we drop support for a deprecated format
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* versions. */
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fprintf (stderr, "\
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A caller requested deprecated output format version %d, which may not\n\
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be supported in the future.\n", notmuch_format_version);
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}
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}
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void
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notmuch_exit_if_unmatched_db_uuid (notmuch_database_t *notmuch)
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{
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const char *uuid = NULL;
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if (!notmuch_requested_db_uuid)
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return;
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IGNORE_RESULT (notmuch_database_get_revision (notmuch, &uuid));
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if (strcmp (notmuch_requested_db_uuid, uuid) != 0){
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fprintf (stderr, "Error: requested database revision %s does not match %s\n",
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notmuch_requested_db_uuid, uuid);
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exit (1);
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}
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}
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static void
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exec_man (const char *page)
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{
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if (execlp ("man", "man", page, (char *) NULL)) {
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perror ("exec man");
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exit (1);
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}
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}
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static int
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_help_for (const char *topic_name)
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{
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command_t *command;
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help_topic_t *topic;
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unsigned int i;
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if (!topic_name) {
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printf ("The notmuch mail system.\n\n");
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usage (stdout);
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return EXIT_SUCCESS;
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}
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if (strcmp (topic_name, "help") == 0) {
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printf ("The notmuch help system.\n\n"
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"\tNotmuch uses the man command to display help. In case\n"
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"\tof difficulties check that MANPATH includes the pages\n"
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"\tinstalled by notmuch.\n\n"
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"\tTry \"notmuch help\" for a list of topics.\n");
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return EXIT_SUCCESS;
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}
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command = find_command (topic_name);
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if (command) {
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char *page = talloc_asprintf (NULL, "notmuch-%s", command->name);
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exec_man (page);
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}
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for (i = 0; i < ARRAY_SIZE (help_topics); i++) {
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topic = &help_topics[i];
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if (strcmp (topic_name, topic->name) == 0) {
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char *page = talloc_asprintf (NULL, "notmuch-%s", topic->name);
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exec_man (page);
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}
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}
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fprintf (stderr,
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"\nSorry, %s is not a known command. There's not much I can do to help.\n\n",
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topic_name);
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return EXIT_FAILURE;
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}
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static int
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notmuch_help_command (unused (notmuch_config_t * config), int argc, char *argv[])
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{
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int opt_index;
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opt_index = notmuch_minimal_options ("help", argc, argv);
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if (opt_index < 0)
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return EXIT_FAILURE;
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/* skip at least subcommand argument */
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argc-= opt_index;
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argv+= opt_index;
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if (argc == 0) {
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return _help_for (NULL);
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}
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return _help_for (argv[0]);
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}
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/* Handle the case of "notmuch" being invoked with no command
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* argument. For now we just call notmuch_setup_command, but we plan
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* to be more clever about this in the future.
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*/
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static int
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notmuch_command (notmuch_config_t *config,
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unused(int argc), unused(char *argv[]))
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{
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char *db_path;
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struct stat st;
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/* If the user has never configured notmuch, then run
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* notmuch_setup_command which will give a nice welcome message,
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* and interactively guide the user through the configuration. */
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if (notmuch_config_is_new (config))
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return notmuch_setup_command (config, 0, NULL);
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/* Notmuch is already configured, but is there a database? */
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db_path = talloc_asprintf (config, "%s/%s",
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notmuch_config_get_database_path (config),
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".notmuch");
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if (stat (db_path, &st)) {
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if (errno != ENOENT) {
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fprintf (stderr, "Error looking for notmuch database at %s: %s\n",
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db_path, strerror (errno));
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return EXIT_FAILURE;
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}
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printf ("Notmuch is configured, but there's not yet a database at\n\n\t%s\n\n",
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db_path);
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printf ("You probably want to run \"notmuch new\" now to create that database.\n\n"
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"Note that the first run of \"notmuch new\" can take a very long time\n"
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"and that the resulting database will use roughly the same amount of\n"
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"storage space as the email being indexed.\n\n");
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return EXIT_SUCCESS;
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}
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printf ("Notmuch is configured and appears to have a database. Excellent!\n\n"
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"At this point you can start exploring the functionality of notmuch by\n"
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"using commands such as:\n\n"
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"\tnotmuch search tag:inbox\n\n"
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"\tnotmuch search to:\"%s\"\n\n"
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"\tnotmuch search from:\"%s\"\n\n"
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"\tnotmuch search subject:\"my favorite things\"\n\n"
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"See \"notmuch help search\" for more details.\n\n"
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"You can also use \"notmuch show\" with any of the thread IDs resulting\n"
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"from a search. Finally, you may want to explore using a more sophisticated\n"
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"interface to notmuch such as the emacs interface implemented in notmuch.el\n"
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"or any other interface described at https://notmuchmail.org\n\n"
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"And don't forget to run \"notmuch new\" whenever new mail arrives.\n\n"
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"Have fun, and may your inbox never have much mail.\n\n",
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notmuch_config_get_user_name (config),
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notmuch_config_get_user_primary_email (config));
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return EXIT_SUCCESS;
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}
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/*
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* Try to run subcommand in argv[0] as notmuch- prefixed external
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* command. argv must be NULL terminated (argv passed to main always
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* is).
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*
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* Does not return if the external command is found and
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* executed. Return true if external command is not found. Return
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* false on errors.
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*/
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static bool try_external_command(char *argv[])
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{
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char *old_argv0 = argv[0];
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bool ret = true;
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argv[0] = talloc_asprintf (NULL, "notmuch-%s", old_argv0);
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/*
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* This will only return on errors. Not finding an external
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* command (ENOENT) is not an error from our perspective.
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*/
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execvp (argv[0], argv);
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if (errno != ENOENT) {
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fprintf (stderr, "Error: Running external command '%s' failed: %s\n",
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argv[0], strerror(errno));
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ret = false;
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}
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talloc_free (argv[0]);
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argv[0] = old_argv0;
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return ret;
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}
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int
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main (int argc, char *argv[])
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{
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void *local;
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char *talloc_report;
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const char *command_name = NULL;
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command_t *command;
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const char *config_file_name = NULL;
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notmuch_config_t *config = NULL;
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int opt_index;
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int ret;
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notmuch_opt_desc_t options[] = {
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{ .opt_string = &config_file_name, .name = "config" },
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{ .opt_inherit = notmuch_shared_options },
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{ }
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};
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talloc_enable_null_tracking ();
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local = talloc_new (NULL);
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g_mime_init (GMIME_ENABLE_RFC2047_WORKAROUNDS);
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#if !GLIB_CHECK_VERSION(2, 35, 1)
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g_type_init ();
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#endif
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/* Globally default to the current output format version. */
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notmuch_format_version = NOTMUCH_FORMAT_CUR;
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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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if (opt_index < argc)
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command_name = argv[opt_index];
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notmuch_process_shared_options (command_name);
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command = find_command (command_name);
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if (!command) {
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/* This won't return if the external command is found. */
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if (try_external_command(argv + opt_index))
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fprintf (stderr, "Error: Unknown command '%s' (see \"notmuch help\")\n",
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command_name);
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ret = EXIT_FAILURE;
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goto DONE;
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}
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config = notmuch_config_open (local, config_file_name, command->config_mode);
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if (!config) {
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ret = EXIT_FAILURE;
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goto DONE;
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}
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ret = (command->function)(config, argc - opt_index, argv + opt_index);
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DONE:
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if (config)
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notmuch_config_close (config);
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talloc_report = getenv ("NOTMUCH_TALLOC_REPORT");
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if (talloc_report && strcmp (talloc_report, "") != 0) {
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/* this relies on the previous call to
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* talloc_enable_null_tracking
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*/
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FILE *report = fopen (talloc_report, "w");
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if (report) {
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talloc_report_full (NULL, report);
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} else {
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ret = 1;
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fprintf (stderr, "ERROR: unable to write talloc log. ");
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perror (talloc_report);
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}
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}
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talloc_free (local);
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return ret;
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}
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