notmuch/notmuch-search.c
Carl Worth b64afb1ab9 notmuch search: Clean up some memory leaks during search loop.
With talloc, we were already freeing all memory by the time we exited
the loop, but that didn't help with excess use of memory inside the
loop, (which was mostly from tallocing some objects with the incorrect
parent).

Thanks to Andrew Tridgell for sitting next to me and teaching me to
use talloc_report_full to find these leaks.
2011-01-26 15:59:19 +10:00

449 lines
10 KiB
C

/* 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"
typedef enum {
OUTPUT_SUMMARY,
OUTPUT_THREADS,
OUTPUT_MESSAGES,
OUTPUT_FILES,
OUTPUT_TAGS
} output_t;
typedef struct search_format {
const char *results_start;
const char *item_start;
void (*item_id) (const void *ctx,
const char *item_type,
const char *item_id);
void (*thread_summary) (const void *ctx,
const char *thread_id,
const time_t date,
const int matched,
const int total,
const char *authors,
const char *subject);
const char *tag_start;
const char *tag;
const char *tag_sep;
const char *tag_end;
const char *item_sep;
const char *item_end;
const char *results_end;
} search_format_t;
static void
format_item_id_text (const void *ctx,
const char *item_type,
const char *item_id);
static void
format_thread_text (const void *ctx,
const char *thread_id,
const time_t date,
const int matched,
const int total,
const char *authors,
const char *subject);
static const search_format_t format_text = {
"",
"",
format_item_id_text,
format_thread_text,
" (",
"%s", " ",
")", "\n",
"",
"\n",
};
static void
format_item_id_json (const void *ctx,
const char *item_type,
const char *item_id);
static void
format_thread_json (const void *ctx,
const char *thread_id,
const time_t date,
const int matched,
const int total,
const char *authors,
const char *subject);
static const search_format_t format_json = {
"[",
"{",
format_item_id_json,
format_thread_json,
"\"tags\": [",
"\"%s\"", ", ",
"]", ",\n",
"}",
"]\n",
};
static void
format_item_id_text (unused (const void *ctx),
const char *item_type,
const char *item_id)
{
printf ("%s%s", item_type, item_id);
}
static void
format_thread_text (const void *ctx,
const char *thread_id,
const time_t date,
const int matched,
const int total,
const char *authors,
const char *subject)
{
printf ("thread:%s %12s [%d/%d] %s; %s",
thread_id,
notmuch_time_relative_date (ctx, date),
matched,
total,
authors,
subject);
}
static void
format_item_id_json (const void *ctx,
unused (const char *item_type),
const char *item_id)
{
void *ctx_quote = talloc_new (ctx);
printf ("%s", json_quote_str (ctx_quote, item_id));
talloc_free (ctx_quote);
}
static void
format_thread_json (const void *ctx,
const char *thread_id,
const time_t date,
const int matched,
const int total,
const char *authors,
const char *subject)
{
void *ctx_quote = talloc_new (ctx);
printf ("\"thread\": %s,\n"
"\"timestamp\": %ld,\n"
"\"matched\": %d,\n"
"\"total\": %d,\n"
"\"authors\": %s,\n"
"\"subject\": %s,\n",
json_quote_str (ctx_quote, thread_id),
date,
matched,
total,
json_quote_str (ctx_quote, authors),
json_quote_str (ctx_quote, subject));
talloc_free (ctx_quote);
}
static int
do_search_threads (const search_format_t *format,
notmuch_query_t *query,
notmuch_sort_t sort,
output_t output)
{
notmuch_thread_t *thread;
notmuch_threads_t *threads;
notmuch_tags_t *tags;
time_t date;
int first_thread = 1;
threads = notmuch_query_search_threads (query);
if (threads == NULL)
return 1;
for (;
notmuch_threads_valid (threads);
notmuch_threads_move_to_next (threads))
{
int first_tag = 1;
if (first_thread)
fputs (format->results_start, stdout);
else
fputs (format->item_sep, stdout);
thread = notmuch_threads_get (threads);
if (output == OUTPUT_THREADS) {
format->item_id (thread, "thread:",
notmuch_thread_get_thread_id (thread));
} else { /* output == OUTPUT_SUMMARY */
fputs (format->item_start, stdout);
if (sort == NOTMUCH_SORT_OLDEST_FIRST)
date = notmuch_thread_get_oldest_date (thread);
else
date = notmuch_thread_get_newest_date (thread);
format->thread_summary (thread,
notmuch_thread_get_thread_id (thread),
date,
notmuch_thread_get_matched_messages (thread),
notmuch_thread_get_total_messages (thread),
notmuch_thread_get_authors (thread),
notmuch_thread_get_subject (thread));
fputs (format->tag_start, stdout);
for (tags = notmuch_thread_get_tags (thread);
notmuch_tags_valid (tags);
notmuch_tags_move_to_next (tags))
{
if (! first_tag)
fputs (format->tag_sep, stdout);
printf (format->tag, notmuch_tags_get (tags));
first_tag = 0;
}
fputs (format->tag_end, stdout);
fputs (format->item_end, stdout);
}
first_thread = 0;
notmuch_thread_destroy (thread);
}
if (! first_thread)
fputs (format->results_end, stdout);
return 0;
}
static int
do_search_messages (const search_format_t *format,
notmuch_query_t *query,
output_t output)
{
notmuch_message_t *message;
notmuch_messages_t *messages;
int first_message = 1;
messages = notmuch_query_search_messages (query);
if (messages == NULL)
return 1;
for (;
notmuch_messages_valid (messages);
notmuch_messages_move_to_next (messages))
{
message = notmuch_messages_get (messages);
if (first_message)
fputs (format->results_start, stdout);
else
fputs (format->item_sep, stdout);
if (output == OUTPUT_FILES) {
format->item_id (message, "",
notmuch_message_get_filename (message));
} else { /* output == OUTPUT_MESSAGES */
format->item_id (message, "id:",
notmuch_message_get_message_id (message));
}
first_message = 0;
notmuch_message_destroy (message);
}
notmuch_messages_destroy (messages);
if (! first_message)
fputs (format->results_end, stdout);
return 0;
}
static int
do_search_tags (notmuch_database_t *notmuch,
const search_format_t *format,
notmuch_query_t *query)
{
notmuch_messages_t *messages = NULL;
notmuch_tags_t *tags;
const char *tag;
int first_tag = 1;
/* Special-case query of "*" for better performance. */
if (strcmp (notmuch_query_get_query_string (query), "*") == 0) {
tags = notmuch_database_get_all_tags (notmuch);
} else {
messages = notmuch_query_search_messages (query);
if (messages == NULL)
return 1;
tags = notmuch_messages_collect_tags (messages);
}
if (tags == NULL)
return 1;
for (;
notmuch_tags_valid (tags);
notmuch_tags_move_to_next (tags))
{
tag = notmuch_tags_get (tags);
if (first_tag)
fputs (format->results_start, stdout);
else
fputs (format->item_sep, stdout);
format->item_id (tags, "", tag);
first_tag = 0;
}
notmuch_tags_destroy (tags);
if (messages)
notmuch_messages_destroy (messages);
if (! first_tag)
fputs (format->results_end, stdout);
return 0;
}
int
notmuch_search_command (void *ctx, int argc, char *argv[])
{
notmuch_config_t *config;
notmuch_database_t *notmuch;
notmuch_query_t *query;
char *query_str;
char *opt;
notmuch_sort_t sort = NOTMUCH_SORT_NEWEST_FIRST;
const search_format_t *format = &format_text;
int i, ret;
output_t output = OUTPUT_SUMMARY;
for (i = 0; i < argc && argv[i][0] == '-'; i++) {
if (strcmp (argv[i], "--") == 0) {
i++;
break;
}
if (STRNCMP_LITERAL (argv[i], "--sort=") == 0) {
opt = argv[i] + sizeof ("--sort=") - 1;
if (strcmp (opt, "oldest-first") == 0) {
sort = NOTMUCH_SORT_OLDEST_FIRST;
} else if (strcmp (opt, "newest-first") == 0) {
sort = NOTMUCH_SORT_NEWEST_FIRST;
} else {
fprintf (stderr, "Invalid value for --sort: %s\n", opt);
return 1;
}
} else if (STRNCMP_LITERAL (argv[i], "--format=") == 0) {
opt = argv[i] + sizeof ("--format=") - 1;
if (strcmp (opt, "text") == 0) {
format = &format_text;
} else if (strcmp (opt, "json") == 0) {
format = &format_json;
} else {
fprintf (stderr, "Invalid value for --format: %s\n", opt);
return 1;
}
} else if (STRNCMP_LITERAL (argv[i], "--output=") == 0) {
opt = argv[i] + sizeof ("--output=") - 1;
if (strcmp (opt, "summary") == 0) {
output = OUTPUT_SUMMARY;
} else if (strcmp (opt, "threads") == 0) {
output = OUTPUT_THREADS;
} else if (strcmp (opt, "messages") == 0) {
output = OUTPUT_MESSAGES;
} else if (strcmp (opt, "files") == 0) {
output = OUTPUT_FILES;
} else if (strcmp (opt, "tags") == 0) {
output = OUTPUT_TAGS;
} else {
fprintf (stderr, "Invalid value for --output: %s\n", opt);
return 1;
}
} else {
fprintf (stderr, "Unrecognized option: %s\n", argv[i]);
return 1;
}
}
argc -= i;
argv += i;
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_ONLY);
if (notmuch == NULL)
return 1;
query_str = query_string_from_args (notmuch, argc, argv);
if (query_str == NULL) {
fprintf (stderr, "Out of memory.\n");
return 1;
}
if (*query_str == '\0') {
fprintf (stderr, "Error: notmuch search requires at least one search term.\n");
return 1;
}
query = notmuch_query_create (notmuch, query_str);
if (query == NULL) {
fprintf (stderr, "Out of memory\n");
return 1;
}
notmuch_query_set_sort (query, sort);
switch (output) {
default:
case OUTPUT_SUMMARY:
case OUTPUT_THREADS:
ret = do_search_threads (format, query, sort, output);
break;
case OUTPUT_MESSAGES:
case OUTPUT_FILES:
ret = do_search_messages (format, query, output);
break;
case OUTPUT_TAGS:
ret = do_search_tags (notmuch, format, query);
break;
}
notmuch_query_destroy (query);
notmuch_database_close (notmuch);
return ret;
}