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/*
* Generate a random corpus of stub messages.
*
* Initial use case is testing dump and restore, so we only have
* message-ids and tags.
*
* Generated message-id's and tags are intentionally nasty.
*
* Copyright (c) 2012 David Bremner
*
* 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: David Bremner <david@tethera.net>
*/
#include <stdlib.h>
#include <assert.h>
#include <talloc.h>
#include <string.h>
#include <glib.h>
#include <math.h>
#include "notmuch-client.h"
#include "command-line-arguments.h"
#include "database-test.h"
/* Current largest Unicode value defined. Note that most of these will
* be printed as boxes in most fonts.
*/
#define GLYPH_MAX 0x10FFFE
typedef struct {
int weight;
int start;
int stop;
} char_class_t;
/*
* Choose about half ascii as test characters, as ascii
* punctation and whitespace is the main cause of problems for
* the (old) restore parser.
*
* We then favour code points with 2 byte encodings. Note that
* code points 0xD800-0xDFFF are forbidden in UTF-8.
*/
static const
char_class_t char_class[] = { { 0.50 * GLYPH_MAX, 0x0001, 0x007f },
{ 0.75 * GLYPH_MAX, 0x0080, 0x07ff },
{ 0.88 * GLYPH_MAX, 0x0800, 0xd7ff },
{ 0.90 * GLYPH_MAX, 0xE000, 0xffff },
{ GLYPH_MAX, 0x10000, GLYPH_MAX } };
static gunichar
random_unichar ()
{
int i;
int class = random () % GLYPH_MAX;
int size;
for (i = 0; char_class[i].weight < class; i++) /* nothing */;
size = char_class[i].stop - char_class[i].start + 1;
return char_class[i].start + (random () % size);
}
static char *
random_utf8_string (void *ctx, size_t char_count)
{
size_t offset = 0;
size_t i;
gchar *buf = NULL;
size_t buf_size = 0;
for (i = 0; i < char_count; i++) {
gunichar randomchar;
size_t written;
/* 6 for one glyph, one for null, one for luck */
while (buf_size <= offset + 8) {
buf_size = 2 * buf_size + 8;
buf = talloc_realloc (ctx, buf, gchar, buf_size);
}
do {
randomchar = random_unichar ();
} while (randomchar == '\n');
written = g_unichar_to_utf8 (randomchar, buf + offset);
if (written <= 0) {
fprintf (stderr, "error converting to utf8\n");
exit (1);
}
offset += written;
}
buf[offset] = 0;
return buf;
}
int
main (int argc, char **argv)
{
void *ctx = talloc_new (NULL);
char *config_path = NULL;
notmuch_config_t *config;
notmuch_database_t *notmuch;
int num_messages = 500;
int max_tags = 10;
// leave room for UTF-8 encoding.
int tag_len = NOTMUCH_TAG_MAX / 6;
// NOTMUCH_MESSAGE_ID_MAX is not exported, so we make a
// conservative guess.
int message_id_len = (NOTMUCH_TAG_MAX - 20) / 6;
int seed = 734569;
notmuch_opt_desc_t options[] = {
{ NOTMUCH_OPT_STRING, &config_path, "config-path", 'c', 0 },
{ NOTMUCH_OPT_INT, &num_messages, "num-messages", 'n', 0 },
{ NOTMUCH_OPT_INT, &max_tags, "max-tags", 'm', 0 },
{ NOTMUCH_OPT_INT, &message_id_len, "message-id-len", 'M', 0 },
{ NOTMUCH_OPT_INT, &tag_len, "tag-len", 't', 0 },
{ NOTMUCH_OPT_INT, &seed, "seed", 's', 0 },
{ 0, 0, 0, 0, 0 }
};
int opt_index = parse_arguments (argc, argv, options, 1);
if (opt_index < 0)
exit (1);
if (message_id_len < 1) {
fprintf (stderr, "message id's must be least length 1\n");
exit (1);
}
if (config_path == NULL) {
fprintf (stderr, "configuration path must be specified");
exit (1);
}
config = notmuch_config_open (ctx, config_path, NULL);
if (config == NULL)
return 1;
if (notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))
return 1;
srandom (seed);
int count;
for (count = 0; count < num_messages; count++) {
int j;
/* explicitly allow zero tags */
int num_tags = random () % (max_tags + 1);
/* message ids should be non-empty */
int this_mid_len = (random () % message_id_len) + 1;
const char **tag_list;
char *mid;
notmuch_status_t status;
do {
mid = random_utf8_string (ctx, this_mid_len);
tag_list = talloc_realloc (ctx, NULL, const char *, num_tags + 1);
for (j = 0; j < num_tags; j++) {
int this_tag_len = random () % tag_len + 1;
tag_list[j] = random_utf8_string (ctx, this_tag_len);
}
tag_list[j] = NULL;
status = notmuch_database_add_stub_message (notmuch, mid, tag_list);
} while (status == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID);
if (status != NOTMUCH_STATUS_SUCCESS) {
fprintf (stderr, "error %d adding message", status);
exit (status);
}
}
notmuch_database_destroy (notmuch);
talloc_free (ctx);
return 0;
}
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