notmuch new: Unbreak after the addition of notmuch-config.

Pull in the code from add-files.c now that notmuch_new_command is
the only user, (we no longer have notmuch_setup_command adding any
messages).

1 files changed, 381 insertions, 13 deletions

diff --git a/notmuch-new.c b/notmuch-new.c
index a7bc994b..7603d3d7 100644
--- a/notmuch-new.c
+++ b/notmuch-new.c
@@ -20,6 +20,14 @@
 
 #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
 tag_inbox_and_unread (notmuch_message_t *message)
 {
@@ -27,34 +35,396 @@ tag_inbox_and_unread (notmuch_message_t *message)
     notmuch_message_add_tag (message, "unread");
 }
 
+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;
+
+    /* 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++;
+
+		status = notmuch_database_add_message (notmuch, next, &message);
+		switch (status) {
+		    /* success */
+		    case NOTMUCH_STATUS_SUCCESS:
+			state->added_messages++;
+			tag_inbox_and_unread (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;
+}
+
+/* XXX: This should be merged with the add_files function since it
+ * shares a lot of logic with it. */
+/* Recursively count all regular files in path and all sub-direcotries
+ * of path.  The result is added to *count (which should be
+ * initialized to zero by the top-level caller before calling
+ * count_files). */
+static void
+count_files (const char *path, int *count)
+{
+    DIR *dir;
+    struct dirent *e, *entry = NULL;
+    int entry_length;
+    int err;
+    char *next;
+    struct stat st;
+
+    dir = opendir (path);
+
+    if (dir == NULL) {
+	fprintf (stderr, "Warning: failed to open directory %s: %s\n",
+		 path, strerror (errno));
+	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));
+	    free (entry);
+	    goto DONE;
+	}
+
+	if (e == NULL)
+	    break;
+
+	/* 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;
+	}
+
+	if (asprintf (&next, "%s/%s", path, entry->d_name) == -1) {
+	    next = NULL;
+	    fprintf (stderr, "Error descending from %s to %s: Out of memory\n",
+		     path, entry->d_name);
+	    continue;
+	}
+
+	stat (next, &st);
+
+	if (S_ISREG (st.st_mode)) {
+	    *count = *count + 1;
+	    if (*count % 1000 == 0) {
+		printf ("Found %d files so far.\r", *count);
+		fflush (stdout);
+	    }
+	} else if (S_ISDIR (st.st_mode)) {
+	    count_files (next, count);
+	}
+
+	free (next);
+    }
+
+  DONE:
+    if (entry)
+	free (entry);
+
+    closedir (dir);
+}
+
 int
-notmuch_new_command (unused (void *ctx),
+notmuch_new_command (void *ctx,
 		     unused (int argc), unused (char *argv[]))
 {
+    notmuch_config_t *config;
     notmuch_database_t *notmuch;
-    const char *mail_directory;
     add_files_state_t add_files_state;
     double elapsed;
     struct timeval tv_now;
     int ret = 0;
+    struct stat st;
+    const char *db_path;
+    char *dot_notmuch_path;
+    int new_database = 0;
 
-    notmuch = notmuch_database_open (NULL);
-    if (notmuch == NULL) {
-	ret = 1;
-	goto DONE;
+    config = notmuch_config_open (ctx, NULL, NULL);
+    if (config == NULL)
+	return 1;
+
+    db_path = notmuch_config_get_database_path (config);
+
+    dot_notmuch_path = talloc_asprintf (ctx, "%s/%s", db_path, ".notmuch");
+
+    if (stat (dot_notmuch_path, &st)) {
+	new_database = 1;
+	notmuch = notmuch_database_create (db_path);
+    } else {
+	notmuch = notmuch_database_open (db_path);
     }
 
-    mail_directory = notmuch_database_get_path (notmuch);
+    if (notmuch == NULL)
+	return 1;
+
+    talloc_free (dot_notmuch_path);
+    dot_notmuch_path = NULL;
+
+    if (new_database) {
+	int count;
+	count_files (db_path, &count);
+	add_files_state.ignore_read_only_directories = FALSE;
+	add_files_state.total_files = count;
+    } else {
+	add_files_state.ignore_read_only_directories = TRUE;
+	add_files_state.total_files = 0;
+    }
 
-    add_files_state.ignore_read_only_directories = TRUE;
     add_files_state.saw_read_only_directory = FALSE;
     add_files_state.total_files = 0;
     add_files_state.processed_files = 0;
     add_files_state.added_messages = 0;
-    add_files_state.callback = tag_inbox_and_unread;
     gettimeofday (&add_files_state.tv_start, NULL);
 
-    ret = add_files (notmuch, mail_directory, &add_files_state);
+    ret = add_files (notmuch, db_path, &add_files_state);
 
     gettimeofday (&tv_now, NULL);
     elapsed = notmuch_time_elapsed (add_files_state.tv_start,
@@ -92,9 +462,7 @@ notmuch_new_command (unused (void *ctx),
 		notmuch_status_to_string (ret));
     }
 
-  DONE:
-    if (notmuch)
-	notmuch_database_close (notmuch);
+    notmuch_database_close (notmuch);
 
     return ret;
 }