+++ /dev/null
-/* 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"
-
-static volatile sig_atomic_t do_add_files_print_progress = 0;
-
-static void
-handle_sigalrm (unused (int signal))
-{
- do_add_files_print_progress = 1;
-}
-
-static void
-add_files_print_progress (add_files_state_t *state)
-{
- struct timeval tv_now;
- double elapsed_overall, rate_overall;
-
- gettimeofday (&tv_now, NULL);
-
- elapsed_overall = notmuch_time_elapsed (state->tv_start, tv_now);
- rate_overall = (state->processed_files) / elapsed_overall;
-
- printf ("Processed %d", state->processed_files);
-
- if (state->total_files) {
- double time_remaining;
-
- time_remaining = ((state->total_files - state->processed_files) /
- rate_overall);
- printf (" of %d files (", state->total_files);
- notmuch_time_print_formatted_seconds (time_remaining);
- printf (" remaining). \r");
- } else {
- printf (" files (%d files/sec.) \r", (int) rate_overall);
- }
-
- fflush (stdout);
-}
-
-/* Examine 'path' recursively as follows:
- *
- * o Ask the filesystem for the mtime of 'path' (path_mtime)
- *
- * o Ask the database for its timestamp of 'path' (path_dbtime)
- *
- * o If 'path_mtime' > 'path_dbtime'
- *
- * o For each regular file in 'path' with mtime newer than the
- * 'path_dbtime' call add_message to add the file to the
- * database.
- *
- * o For each sub-directory of path, recursively call into this
- * same function.
- *
- * o Tell the database to update its time of 'path' to 'path_mtime'
- *
- * The 'struct stat *st' must point to a structure that has already
- * been initialized for 'path' by calling stat().
- */
-static notmuch_status_t
-add_files_recursive (notmuch_database_t *notmuch,
- const char *path,
- struct stat *st,
- add_files_state_t *state)
-{
- DIR *dir = NULL;
- struct dirent *e, *entry = NULL;
- int entry_length;
- int err;
- char *next = NULL;
- time_t path_mtime, path_dbtime;
- notmuch_status_t status, ret = NOTMUCH_STATUS_SUCCESS;
- notmuch_message_t *message = NULL, **closure;
-
- /* If we're told to, we bail out on encountering a read-only
- * directory, (with this being a clear clue from the user to
- * Notmuch that new mail won't be arriving there and we need not
- * look. */
- if (state->ignore_read_only_directories &&
- (st->st_mode & S_IWUSR) == 0)
- {
- state->saw_read_only_directory = TRUE;
- goto DONE;
- }
-
- path_mtime = st->st_mtime;
-
- path_dbtime = notmuch_database_get_timestamp (notmuch, path);
-
- dir = opendir (path);
- if (dir == NULL) {
- fprintf (stderr, "Error opening directory %s: %s\n",
- path, strerror (errno));
- ret = NOTMUCH_STATUS_FILE_ERROR;
- goto DONE;
- }
-
- entry_length = offsetof (struct dirent, d_name) +
- pathconf (path, _PC_NAME_MAX) + 1;
- entry = malloc (entry_length);
-
- while (1) {
- err = readdir_r (dir, entry, &e);
- if (err) {
- fprintf (stderr, "Error reading directory: %s\n",
- strerror (errno));
- ret = NOTMUCH_STATUS_FILE_ERROR;
- goto DONE;
- }
-
- if (e == NULL)
- break;
-
- /* If this directory hasn't been modified since the last
- * add_files, then we only need to look further for
- * sub-directories. */
- if (path_mtime <= path_dbtime && entry->d_type != DT_DIR)
- continue;
-
- /* Ignore special directories to avoid infinite recursion.
- * Also ignore the .notmuch directory.
- */
- /* XXX: Eventually we'll want more sophistication to let the
- * user specify files to be ignored. */
- if (strcmp (entry->d_name, ".") == 0 ||
- strcmp (entry->d_name, "..") == 0 ||
- strcmp (entry->d_name, ".notmuch") ==0)
- {
- continue;
- }
-
- next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
-
- if (stat (next, st)) {
- fprintf (stderr, "Error reading %s: %s\n",
- next, strerror (errno));
- ret = NOTMUCH_STATUS_FILE_ERROR;
- continue;
- }
-
- if (S_ISREG (st->st_mode)) {
- /* If the file hasn't been modified since the last
- * add_files, then we need not look at it. */
- if (st->st_mtime > path_dbtime) {
- state->processed_files++;
-
- if (state->callback)
- closure = &message;
- else
- closure = NULL;
-
- status = notmuch_database_add_message (notmuch, next, closure);
- switch (status) {
- /* success */
- case NOTMUCH_STATUS_SUCCESS:
- state->added_messages++;
- if (state->callback)
- (state->callback) (message);
- break;
- /* Non-fatal issues (go on to next file) */
- case NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID:
- /* Stay silent on this one. */
- break;
- case NOTMUCH_STATUS_FILE_NOT_EMAIL:
- fprintf (stderr, "Note: Ignoring non-mail file: %s\n",
- next);
- break;
- /* Fatal issues. Don't process anymore. */
- case NOTMUCH_STATUS_XAPIAN_EXCEPTION:
- case NOTMUCH_STATUS_OUT_OF_MEMORY:
- fprintf (stderr, "Error: %s. Halting processing.\n",
- notmuch_status_to_string (status));
- ret = status;
- goto DONE;
- default:
- case NOTMUCH_STATUS_FILE_ERROR:
- case NOTMUCH_STATUS_NULL_POINTER:
- case NOTMUCH_STATUS_TAG_TOO_LONG:
- case NOTMUCH_STATUS_UNBALANCED_FREEZE_THAW:
- case NOTMUCH_STATUS_LAST_STATUS:
- INTERNAL_ERROR ("add_message returned unexpected value: %d", status);
- goto DONE;
- }
-
- if (message) {
- notmuch_message_destroy (message);
- message = NULL;
- }
-
- if (do_add_files_print_progress) {
- do_add_files_print_progress = 0;
- add_files_print_progress (state);
- }
- }
- } else if (S_ISDIR (st->st_mode)) {
- status = add_files_recursive (notmuch, next, st, state);
- if (status && ret == NOTMUCH_STATUS_SUCCESS)
- ret = status;
- }
-
- talloc_free (next);
- next = NULL;
- }
-
- status = notmuch_database_set_timestamp (notmuch, path, path_mtime);
- if (status && ret == NOTMUCH_STATUS_SUCCESS)
- ret = status;
-
- DONE:
- if (next)
- talloc_free (next);
- if (entry)
- free (entry);
- if (dir)
- closedir (dir);
-
- return ret;
-}
-
-/* This is the top-level entry point for add_files. It does a couple
- * of error checks, sets up the progress-printing timer and then calls
- * into the recursive function. */
-notmuch_status_t
-add_files (notmuch_database_t *notmuch,
- const char *path,
- add_files_state_t *state)
-{
- struct stat st;
- notmuch_status_t status;
- struct sigaction action;
- struct itimerval timerval;
-
- if (stat (path, &st)) {
- fprintf (stderr, "Error reading directory %s: %s\n",
- path, strerror (errno));
- return NOTMUCH_STATUS_FILE_ERROR;
- }
-
- if (! S_ISDIR (st.st_mode)) {
- fprintf (stderr, "Error: %s is not a directory.\n", path);
- return NOTMUCH_STATUS_FILE_ERROR;
- }
-
- /* Setup our handler for SIGALRM */
- memset (&action, 0, sizeof (struct sigaction));
- action.sa_handler = handle_sigalrm;
- sigemptyset (&action.sa_mask);
- action.sa_flags = SA_RESTART;
- sigaction (SIGALRM, &action, NULL);
-
- /* Then start a timer to send SIGALRM once per second. */
- timerval.it_interval.tv_sec = 1;
- timerval.it_interval.tv_usec = 0;
- timerval.it_value.tv_sec = 1;
- timerval.it_value.tv_usec = 0;
- setitimer (ITIMER_REAL, &timerval, NULL);
-
- status = add_files_recursive (notmuch, path, &st, state);
-
- /* Now stop the timer. */
- timerval.it_interval.tv_sec = 0;
- timerval.it_interval.tv_usec = 0;
- timerval.it_value.tv_sec = 0;
- timerval.it_value.tv_usec = 0;
- setitimer (ITIMER_REAL, &timerval, NULL);
-
- /* And disable the signal handler. */
- action.sa_handler = SIG_IGN;
- sigaction (SIGALRM, &action, NULL);
-
- return status;
-}
projects / notmuch / blobdiff