--- /dev/null
+/*
+ * 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);
+ }
+
+ randomchar = random_unichar ();
+
+ 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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