1 /* notmuch - Not much of an email program, (just index and search)
3 * Copyright © 2009 Carl Worth
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see http://www.gnu.org/licenses/ .
18 * Author: Carl Worth <cworth@cworth.org>
21 #include "notmuch-client.h"
25 typedef struct _filename_node {
27 struct _filename_node *next;
30 typedef struct _filename_list {
31 _filename_node_t *head;
32 _filename_node_t **tail;
42 struct timeval tv_start;
44 _filename_list_t *removed_files;
45 _filename_list_t *removed_directories;
48 static volatile sig_atomic_t do_add_files_print_progress = 0;
51 handle_sigalrm (unused (int signal))
53 do_add_files_print_progress = 1;
56 static volatile sig_atomic_t interrupted;
59 handle_sigint (unused (int sig))
62 static char msg[] = "Stopping... \n";
64 ignored = write(2, msg, sizeof(msg)-1);
68 static _filename_list_t *
69 _filename_list_create (const void *ctx)
71 _filename_list_t *list;
73 list = talloc (ctx, _filename_list_t);
78 list->tail = &list->head;
84 _filename_list_add (_filename_list_t *list,
87 _filename_node_t *node = talloc (list, _filename_node_t);
89 node->filename = talloc_strdup (list, filename);
93 list->tail = &node->next;
97 tag_inbox_and_unread (notmuch_message_t *message)
99 notmuch_message_add_tag (message, "inbox");
100 notmuch_message_add_tag (message, "unread");
104 add_files_print_progress (add_files_state_t *state)
106 struct timeval tv_now;
107 double elapsed_overall, rate_overall;
109 gettimeofday (&tv_now, NULL);
111 elapsed_overall = notmuch_time_elapsed (state->tv_start, tv_now);
112 rate_overall = (state->processed_files) / elapsed_overall;
114 printf ("Processed %d", state->processed_files);
116 if (state->total_files) {
117 double time_remaining;
119 time_remaining = ((state->total_files - state->processed_files) /
121 printf (" of %d files (", state->total_files);
122 notmuch_time_print_formatted_seconds (time_remaining);
123 printf (" remaining). \r");
125 printf (" files (%d files/sec.) \r", (int) rate_overall);
132 dirent_sort_inode (const struct dirent **a, const struct dirent **b)
134 return ((*a)->d_ino < (*b)->d_ino) ? -1 : 1;
138 dirent_sort_strcmp_name (const struct dirent **a, const struct dirent **b)
140 return strcmp ((*a)->d_name, (*b)->d_name);
143 /* Test if the directory looks like a Maildir directory.
145 * Search through the array of directory entries to see if we can find all
146 * three subdirectories typical for Maildir, that is "new", "cur", and "tmp".
148 * Return 1 if the directory looks like a Maildir and 0 otherwise.
151 _entries_resemble_maildir (struct dirent **entries, int count)
155 for (i = 0; i < count; i++) {
156 if (entries[i]->d_type != DT_DIR)
159 if (strcmp(entries[i]->d_name, "new") == 0 ||
160 strcmp(entries[i]->d_name, "cur") == 0 ||
161 strcmp(entries[i]->d_name, "tmp") == 0)
172 /* Examine 'path' recursively as follows:
174 * o Ask the filesystem for the mtime of 'path' (fs_mtime)
175 * o Ask the database for its timestamp of 'path' (db_mtime)
177 * o Ask the filesystem for files and directories within 'path'
178 * (via scandir and stored in fs_entries)
179 * o Ask the database for files and directories within 'path'
180 * (db_files and db_subdirs)
182 * o Pass 1: For each directory in fs_entries, recursively call into
183 * this same function.
185 * o Pass 2: If 'fs_mtime' > 'db_mtime', then walk fs_entries
186 * simultaneously with db_files and db_subdirs. Look for one of
187 * three interesting cases:
189 * 1. Regular file in fs_entries and not in db_files
190 * This is a new file to add_message into the database.
192 * 2. Filename in db_files not in fs_entries.
193 * This is a file that has been removed from the mail store.
195 * 3. Directory in db_subdirs not in fs_entries
196 * This is a directory that has been removed from the mail store.
198 * Note that the addition of a directory is not interesting here,
199 * since that will have been taken care of in pass 1. Also, we
200 * don't immediately act on file/directory removal since we must
201 * ensure that in the case of a rename that the new filename is
202 * added before the old filename is removed, (so that no
203 * information is lost from the database).
205 * o Tell the database to update its time of 'path' to 'fs_mtime'
207 static notmuch_status_t
208 add_files_recursive (notmuch_database_t *notmuch,
210 add_files_state_t *state)
213 struct dirent *entry = NULL;
215 time_t fs_mtime, db_mtime;
216 notmuch_status_t status, ret = NOTMUCH_STATUS_SUCCESS;
217 notmuch_message_t *message = NULL;
218 struct dirent **fs_entries = NULL;
219 int i, num_fs_entries;
220 notmuch_directory_t *directory;
221 notmuch_filenames_t *db_files = NULL;
222 notmuch_filenames_t *db_subdirs = NULL;
224 notmuch_bool_t is_maildir;
226 if (stat (path, &st)) {
227 fprintf (stderr, "Error reading directory %s: %s\n",
228 path, strerror (errno));
229 return NOTMUCH_STATUS_FILE_ERROR;
232 if (! S_ISDIR (st.st_mode)) {
233 fprintf (stderr, "Error: %s is not a directory.\n", path);
234 return NOTMUCH_STATUS_FILE_ERROR;
237 fs_mtime = st.st_mtime;
239 directory = notmuch_database_get_directory (notmuch, path);
240 db_mtime = notmuch_directory_get_mtime (directory);
242 /* If the database knows about this directory, then we sort based
243 * on strcmp to match the database sorting. Otherwise, we can do
244 * inode-based sorting for faster filesystem operation. */
245 num_fs_entries = scandir (path, &fs_entries, 0,
247 dirent_sort_strcmp_name : dirent_sort_inode);
249 if (num_fs_entries == -1) {
250 fprintf (stderr, "Error opening directory %s: %s\n",
251 path, strerror (errno));
252 ret = NOTMUCH_STATUS_FILE_ERROR;
256 /* Pass 1: Recurse into all sub-directories. */
257 is_maildir = _entries_resemble_maildir (fs_entries, num_fs_entries);
259 for (i = 0; i < num_fs_entries; i++) {
263 entry = fs_entries[i];
265 if (entry->d_type != DT_DIR)
268 /* Ignore special directories to avoid infinite recursion.
269 * Also ignore the .notmuch directory and any "tmp" directory
270 * that appears within a maildir.
272 /* XXX: Eventually we'll want more sophistication to let the
273 * user specify files to be ignored. */
274 if (strcmp (entry->d_name, ".") == 0 ||
275 strcmp (entry->d_name, "..") == 0 ||
276 (is_maildir && strcmp (entry->d_name, "tmp") == 0) ||
277 strcmp (entry->d_name, ".notmuch") ==0)
282 next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
283 status = add_files_recursive (notmuch, next, state);
284 if (status && ret == NOTMUCH_STATUS_SUCCESS)
290 /* If this directory hasn't been modified since the last
291 * "notmuch new", then we can skip the second pass entirely. */
292 if (fs_mtime <= db_mtime)
295 /* Pass 2: Scan for new files, removed files, and removed directories. */
296 db_files = notmuch_directory_get_child_files (directory);
297 db_subdirs = notmuch_directory_get_child_directories (directory);
299 for (i = 0; i < num_fs_entries; i++)
304 entry = fs_entries[i];
306 /* Check if we've walked past any names in db_files or
307 * db_subdirs. If so, these have been deleted. */
308 while (notmuch_filenames_has_more (db_files) &&
309 strcmp (notmuch_filenames_get (db_files), entry->d_name) < 0)
311 char *absolute = talloc_asprintf (state->removed_files,
313 notmuch_filenames_get (db_files));
315 _filename_list_add (state->removed_files, absolute);
317 notmuch_filenames_advance (db_files);
320 while (notmuch_filenames_has_more (db_subdirs) &&
321 strcmp (notmuch_filenames_get (db_subdirs), entry->d_name) <= 0)
323 const char *filename = notmuch_filenames_get (db_subdirs);
325 if (strcmp (filename, entry->d_name) < 0)
327 char *absolute = talloc_asprintf (state->removed_directories,
328 "%s/%s", path, filename);
330 _filename_list_add (state->removed_directories, absolute);
333 notmuch_filenames_advance (db_subdirs);
336 if (entry->d_type != DT_REG)
339 /* Don't add a file that we've added before. */
340 if (notmuch_filenames_has_more (db_files) &&
341 strcmp (notmuch_filenames_get (db_files), entry->d_name) == 0)
343 notmuch_filenames_advance (db_files);
347 /* We're now looking at a regular file that doesn't yet exist
348 * in the database, so add it. */
349 next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
351 state->processed_files++;
353 if (state->verbose) {
354 if (state->output_is_a_tty)
358 state->processed_files,
362 putchar((state->output_is_a_tty) ? '\r' : '\n');
366 status = notmuch_database_add_message (notmuch, next, &message);
369 case NOTMUCH_STATUS_SUCCESS:
370 state->added_messages++;
371 tag_inbox_and_unread (message);
373 /* Non-fatal issues (go on to next file) */
374 case NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID:
375 /* Stay silent on this one. */
377 case NOTMUCH_STATUS_FILE_NOT_EMAIL:
378 fprintf (stderr, "Note: Ignoring non-mail file: %s\n",
381 /* Fatal issues. Don't process anymore. */
382 case NOTMUCH_STATUS_READONLY_DATABASE:
383 case NOTMUCH_STATUS_XAPIAN_EXCEPTION:
384 case NOTMUCH_STATUS_OUT_OF_MEMORY:
385 fprintf (stderr, "Error: %s. Halting processing.\n",
386 notmuch_status_to_string (status));
390 case NOTMUCH_STATUS_FILE_ERROR:
391 case NOTMUCH_STATUS_NULL_POINTER:
392 case NOTMUCH_STATUS_TAG_TOO_LONG:
393 case NOTMUCH_STATUS_UNBALANCED_FREEZE_THAW:
394 case NOTMUCH_STATUS_LAST_STATUS:
395 INTERNAL_ERROR ("add_message returned unexpected value: %d", status);
400 notmuch_message_destroy (message);
404 if (do_add_files_print_progress) {
405 do_add_files_print_progress = 0;
406 add_files_print_progress (state);
414 status = notmuch_directory_set_mtime (directory, fs_mtime);
415 if (status && ret == NOTMUCH_STATUS_SUCCESS)
429 notmuch_filenames_destroy (db_subdirs);
431 notmuch_filenames_destroy (db_files);
433 notmuch_directory_destroy (directory);
438 /* This is the top-level entry point for add_files. It does a couple
439 * of error checks, sets up the progress-printing timer and then calls
440 * into the recursive function. */
441 static notmuch_status_t
442 add_files (notmuch_database_t *notmuch,
444 add_files_state_t *state)
446 notmuch_status_t status;
447 struct sigaction action;
448 struct itimerval timerval;
449 notmuch_bool_t timer_is_active = FALSE;
451 if (state->output_is_a_tty && ! debugger_is_active () && ! state->verbose) {
452 /* Setup our handler for SIGALRM */
453 memset (&action, 0, sizeof (struct sigaction));
454 action.sa_handler = handle_sigalrm;
455 sigemptyset (&action.sa_mask);
456 action.sa_flags = SA_RESTART;
457 sigaction (SIGALRM, &action, NULL);
459 /* Then start a timer to send SIGALRM once per second. */
460 timerval.it_interval.tv_sec = 1;
461 timerval.it_interval.tv_usec = 0;
462 timerval.it_value.tv_sec = 1;
463 timerval.it_value.tv_usec = 0;
464 setitimer (ITIMER_REAL, &timerval, NULL);
466 timer_is_active = TRUE;
469 status = add_files_recursive (notmuch, path, state);
471 if (timer_is_active) {
472 /* Now stop the timer. */
473 timerval.it_interval.tv_sec = 0;
474 timerval.it_interval.tv_usec = 0;
475 timerval.it_value.tv_sec = 0;
476 timerval.it_value.tv_usec = 0;
477 setitimer (ITIMER_REAL, &timerval, NULL);
479 /* And disable the signal handler. */
480 action.sa_handler = SIG_IGN;
481 sigaction (SIGALRM, &action, NULL);
487 /* XXX: This should be merged with the add_files function since it
488 * shares a lot of logic with it. */
489 /* Recursively count all regular files in path and all sub-directories
490 * of path. The result is added to *count (which should be
491 * initialized to zero by the top-level caller before calling
494 count_files (const char *path, int *count)
496 struct dirent *entry = NULL;
499 struct dirent **fs_entries = NULL;
500 int num_fs_entries = scandir (path, &fs_entries, 0, dirent_sort_inode);
503 if (num_fs_entries == -1) {
504 fprintf (stderr, "Warning: failed to open directory %s: %s\n",
505 path, strerror (errno));
509 while (!interrupted) {
510 if (i == num_fs_entries)
513 entry = fs_entries[i++];
515 /* Ignore special directories to avoid infinite recursion.
516 * Also ignore the .notmuch directory.
518 /* XXX: Eventually we'll want more sophistication to let the
519 * user specify files to be ignored. */
520 if (strcmp (entry->d_name, ".") == 0 ||
521 strcmp (entry->d_name, "..") == 0 ||
522 strcmp (entry->d_name, ".notmuch") == 0)
527 if (asprintf (&next, "%s/%s", path, entry->d_name) == -1) {
529 fprintf (stderr, "Error descending from %s to %s: Out of memory\n",
530 path, entry->d_name);
536 if (S_ISREG (st.st_mode)) {
538 if (*count % 1000 == 0) {
539 printf ("Found %d files so far.\r", *count);
542 } else if (S_ISDIR (st.st_mode)) {
543 count_files (next, count);
557 notmuch_new_command (void *ctx, int argc, char *argv[])
559 notmuch_config_t *config;
560 notmuch_database_t *notmuch;
561 add_files_state_t add_files_state;
563 struct timeval tv_now;
567 char *dot_notmuch_path;
568 struct sigaction action;
570 int renamed_files, removed_files;
571 notmuch_status_t status;
574 add_files_state.verbose = 0;
575 add_files_state.output_is_a_tty = isatty (fileno (stdout));
577 for (i = 0; i < argc && argv[i][0] == '-'; i++) {
578 if (STRNCMP_LITERAL (argv[i], "--verbose") == 0) {
579 add_files_state.verbose = 1;
581 fprintf (stderr, "Unrecognized option: %s\n", argv[i]);
586 /* Setup our handler for SIGINT */
587 memset (&action, 0, sizeof (struct sigaction));
588 action.sa_handler = handle_sigint;
589 sigemptyset (&action.sa_mask);
590 action.sa_flags = SA_RESTART;
591 sigaction (SIGINT, &action, NULL);
593 config = notmuch_config_open (ctx, NULL, NULL);
597 db_path = notmuch_config_get_database_path (config);
599 dot_notmuch_path = talloc_asprintf (ctx, "%s/%s", db_path, ".notmuch");
601 if (stat (dot_notmuch_path, &st)) {
605 count_files (db_path, &count);
609 printf ("Found %d total files (that's not much mail).\n", count);
610 notmuch = notmuch_database_create (db_path);
611 add_files_state.total_files = count;
613 notmuch = notmuch_database_open (db_path,
614 NOTMUCH_DATABASE_MODE_READ_WRITE);
615 add_files_state.total_files = 0;
621 talloc_free (dot_notmuch_path);
622 dot_notmuch_path = NULL;
624 add_files_state.processed_files = 0;
625 add_files_state.added_messages = 0;
626 gettimeofday (&add_files_state.tv_start, NULL);
628 add_files_state.removed_files = _filename_list_create (ctx);
629 add_files_state.removed_directories = _filename_list_create (ctx);
631 ret = add_files (notmuch, db_path, &add_files_state);
635 for (f = add_files_state.removed_files->head; f; f = f->next) {
636 status = notmuch_database_remove_message (notmuch, f->filename);
637 if (status == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID)
643 for (f = add_files_state.removed_directories->head; f; f = f->next) {
644 notmuch_directory_t *directory;
645 notmuch_filenames_t *files;
647 directory = notmuch_database_get_directory (notmuch, f->filename);
649 for (files = notmuch_directory_get_child_files (directory);
650 notmuch_filenames_has_more (files);
651 notmuch_filenames_advance (files))
655 absolute = talloc_asprintf (ctx, "%s/%s", f->filename,
656 notmuch_filenames_get (files));
657 status = notmuch_database_remove_message (notmuch, absolute);
658 if (status == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID)
662 talloc_free (absolute);
665 notmuch_directory_destroy (directory);
668 talloc_free (add_files_state.removed_files);
669 talloc_free (add_files_state.removed_directories);
671 gettimeofday (&tv_now, NULL);
672 elapsed = notmuch_time_elapsed (add_files_state.tv_start,
675 if (add_files_state.processed_files) {
676 printf ("Processed %d %s in ", add_files_state.processed_files,
677 add_files_state.processed_files == 1 ?
678 "file" : "total files");
679 notmuch_time_print_formatted_seconds (elapsed);
681 printf (" (%d files/sec.). \n",
682 (int) (add_files_state.processed_files / elapsed));
688 if (add_files_state.added_messages) {
689 printf ("Added %d new %s to the database.",
690 add_files_state.added_messages,
691 add_files_state.added_messages == 1 ?
692 "message" : "messages");
694 printf ("No new mail.");
698 printf (" Removed %d %s.",
700 removed_files == 1 ? "message" : "messages");
704 printf (" Detected %d file %s.",
706 renamed_files == 1 ? "rename" : "renames");
712 printf ("\nNote: At least one error was encountered: %s\n",
713 notmuch_status_to_string (ret));
716 notmuch_database_close (notmuch);
718 return ret || interrupted;