X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch-new.c;h=33645349cd5fd8abdb5936e185b5f5c70d529c08;hp=72dd558d0fa150288eb15a14ea6aee5f6b00f135;hb=acd66cdec075312944e527febd46382e54d99367;hpb=3f3c446c40e6e7661620645f1c152968b5590f10

diff --git a/notmuch-new.c b/notmuch-new.c
index 72dd558d..33645349 100644
--- a/notmuch-new.c
+++ b/notmuch-new.c
@@ -19,6 +19,7 @@
  */
 
 #include "notmuch-client.h"
+#include "tag-util.h"
 
 #include <unistd.h>
 
@@ -34,9 +35,16 @@ typedef struct _filename_list {
     _filename_node_t **tail;
 } _filename_list_t;
 
+enum verbosity {
+    VERBOSITY_QUIET,
+    VERBOSITY_NORMAL,
+    VERBOSITY_VERBOSE,
+};
+
 typedef struct {
     int output_is_a_tty;
-    int verbose;
+    enum verbosity verbosity;
+    notmuch_bool_t debug;
     const char **new_tags;
     size_t new_tags_length;
     const char **new_ignore;
@@ -154,6 +162,48 @@ dirent_sort_strcmp_name (const struct dirent **a, const struct dirent **b)
     return strcmp ((*a)->d_name, (*b)->d_name);
 }
 
+/* Return the type of a directory entry relative to path as a stat(2)
+ * mode.  Like stat, this follows symlinks.  Returns -1 and sets errno
+ * if the file's type cannot be determined (which includes dangling
+ * symlinks).
+ */
+static int
+dirent_type (const char *path, const struct dirent *entry)
+{
+    struct stat statbuf;
+    char *abspath;
+    int err, saved_errno;
+
+#if HAVE_D_TYPE
+    /* Mapping from d_type to stat mode_t.  We omit DT_LNK so that
+     * we'll fall through to stat and get the real file type. */
+    static const mode_t modes[] = {
+	[DT_BLK]  = S_IFBLK,
+	[DT_CHR]  = S_IFCHR,
+	[DT_DIR]  = S_IFDIR,
+	[DT_FIFO] = S_IFIFO,
+	[DT_REG]  = S_IFREG,
+	[DT_SOCK] = S_IFSOCK
+    };
+    if (entry->d_type < ARRAY_SIZE(modes) && modes[entry->d_type])
+	return modes[entry->d_type];
+#endif
+
+    abspath = talloc_asprintf (NULL, "%s/%s", path, entry->d_name);
+    if (!abspath) {
+	errno = ENOMEM;
+	return -1;
+    }
+    err = stat(abspath, &statbuf);
+    saved_errno = errno;
+    talloc_free (abspath);
+    if (err < 0) {
+	errno = saved_errno;
+	return -1;
+    }
+    return statbuf.st_mode & S_IFMT;
+}
+
 /* Test if the directory looks like a Maildir directory.
  *
  * Search through the array of directory entries to see if we can find all
@@ -162,12 +212,12 @@ dirent_sort_strcmp_name (const struct dirent **a, const struct dirent **b)
  * Return 1 if the directory looks like a Maildir and 0 otherwise.
  */
 static int
-_entries_resemble_maildir (struct dirent **entries, int count)
+_entries_resemble_maildir (const char *path, struct dirent **entries, int count)
 {
     int i, found = 0;
 
     for (i = 0; i < count; i++) {
-	if (entries[i]->d_type != DT_DIR && entries[i]->d_type != DT_UNKNOWN)
+	if (dirent_type (path, entries[i]) != S_IFDIR)
 	    continue;
 
 	if (strcmp(entries[i]->d_name, "new") == 0 ||
@@ -197,6 +247,60 @@ _entry_in_ignore_list (const char *entry, add_files_state_t *state)
     return FALSE;
 }
 
+/* Add a single file to the database. */
+static notmuch_status_t
+add_file (notmuch_database_t *notmuch, const char *filename,
+	  add_files_state_t *state)
+{
+    notmuch_message_t *message = NULL;
+    const char **tag;
+    notmuch_status_t status;
+
+    status = notmuch_database_begin_atomic (notmuch);
+    if (status)
+	goto DONE;
+
+    status = notmuch_database_add_message (notmuch, filename, &message);
+    switch (status) {
+    /* Success. */
+    case NOTMUCH_STATUS_SUCCESS:
+	state->added_messages++;
+	notmuch_message_freeze (message);
+	for (tag = state->new_tags; *tag != NULL; tag++)
+	    notmuch_message_add_tag (message, *tag);
+	if (state->synchronize_flags)
+	    notmuch_message_maildir_flags_to_tags (message);
+	notmuch_message_thaw (message);
+	break;
+    /* Non-fatal issues (go on to next file). */
+    case NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID:
+	if (state->synchronize_flags)
+	    notmuch_message_maildir_flags_to_tags (message);
+	break;
+    case NOTMUCH_STATUS_FILE_NOT_EMAIL:
+	fprintf (stderr, "Note: Ignoring non-mail file: %s\n", filename);
+	break;
+    /* Fatal issues. Don't process anymore. */
+    case NOTMUCH_STATUS_READ_ONLY_DATABASE:
+    case NOTMUCH_STATUS_XAPIAN_EXCEPTION:
+    case NOTMUCH_STATUS_OUT_OF_MEMORY:
+	fprintf (stderr, "Error: %s. Halting processing.\n",
+		 notmuch_status_to_string (status));
+	goto DONE;
+    default:
+	INTERNAL_ERROR ("add_message returned unexpected value: %d", status);
+	goto DONE;
+    }
+
+    status = notmuch_database_end_atomic (notmuch);
+
+  DONE:
+    if (message)
+	notmuch_message_destroy (message);
+
+    return status;
+}
+
 /* Examine 'path' recursively as follows:
  *
  *   o Ask the filesystem for the mtime of 'path' (fs_mtime)
@@ -239,25 +343,23 @@ _entry_in_ignore_list (const char *entry, add_files_state_t *state)
  *     if fs_mtime isn't the current wall-clock time.
  */
 static notmuch_status_t
-add_files_recursive (notmuch_database_t *notmuch,
-		     const char *path,
-		     add_files_state_t *state)
+add_files (notmuch_database_t *notmuch,
+	   const char *path,
+	   add_files_state_t *state)
 {
     DIR *dir = NULL;
     struct dirent *entry = NULL;
     char *next = NULL;
     time_t fs_mtime, db_mtime;
     notmuch_status_t status, ret = NOTMUCH_STATUS_SUCCESS;
-    notmuch_message_t *message = NULL;
     struct dirent **fs_entries = NULL;
-    int i, num_fs_entries = 0;
+    int i, num_fs_entries = 0, entry_type;
     notmuch_directory_t *directory;
     notmuch_filenames_t *db_files = NULL;
     notmuch_filenames_t *db_subdirs = NULL;
     time_t stat_time;
     struct stat st;
     notmuch_bool_t is_maildir;
-    const char **tag;
 
     if (stat (path, &st)) {
 	fprintf (stderr, "Error reading directory %s: %s\n",
@@ -266,11 +368,10 @@ add_files_recursive (notmuch_database_t *notmuch,
     }
     stat_time = time (NULL);
 
-    /* This is not an error since we may have recursed based on a
-     * symlink to a regular file, not a directory, and we don't know
-     * that until this stat. */
-    if (! S_ISDIR (st.st_mode))
-	return NOTMUCH_STATUS_SUCCESS;
+    if (! S_ISDIR (st.st_mode)) {
+	fprintf (stderr, "Error: %s is not a directory.\n", path);
+	return NOTMUCH_STATUS_FILE_ERROR;
+    }
 
     fs_mtime = st.st_mtime;
 
@@ -281,6 +382,35 @@ add_files_recursive (notmuch_database_t *notmuch,
     }
     db_mtime = directory ? notmuch_directory_get_mtime (directory) : 0;
 
+    /* If the directory is unchanged from our last scan and has no
+     * sub-directories, then return without scanning it at all.  In
+     * some situations, skipping the scan can substantially reduce the
+     * cost of notmuch new, especially since the huge numbers of files
+     * in Maildirs make scans expensive, but all files live in leaf
+     * directories.
+     *
+     * To check for sub-directories, we borrow a trick from find,
+     * kpathsea, and many other UNIX tools: since a directory's link
+     * count is the number of sub-directories (specifically, their
+     * '..' entries) plus 2 (the link from the parent and the link for
+     * '.').  This check is safe even on weird file systems, since
+     * file systems that can't compute this will return 0 or 1.  This
+     * is safe even on *really* weird file systems like HFS+ that
+     * mistakenly return the total number of directory entries, since
+     * that only inflates the count beyond 2.
+     */
+    if (directory && fs_mtime == db_mtime && st.st_nlink == 2) {
+	/* There's one catch: pass 1 below considers symlinks to
+	 * directories to be directories, but these don't increase the
+	 * file system link count.  So, only bail early if the
+	 * database agrees that there are no sub-directories. */
+	db_subdirs = notmuch_directory_get_child_directories (directory);
+	if (!notmuch_filenames_valid (db_subdirs))
+	    goto DONE;
+	notmuch_filenames_destroy (db_subdirs);
+	db_subdirs = NULL;
+    }
+
     /* If the database knows about this directory, then we sort based
      * on strcmp to match the database sorting. Otherwise, we can do
      * inode-based sorting for faster filesystem operation. */
@@ -300,7 +430,7 @@ add_files_recursive (notmuch_database_t *notmuch,
     }
 
     /* Pass 1: Recurse into all sub-directories. */
-    is_maildir = _entries_resemble_maildir (fs_entries, num_fs_entries);
+    is_maildir = _entries_resemble_maildir (path, fs_entries, num_fs_entries);
 
     for (i = 0; i < num_fs_entries; i++) {
 	if (interrupted)
@@ -308,36 +438,43 @@ add_files_recursive (notmuch_database_t *notmuch,
 
 	entry = fs_entries[i];
 
-	/* We only want to descend into directories.
-	 * But symlinks can be to directories too, of course.
-	 *
-	 * And if the filesystem doesn't tell us the file type in the
-	 * scandir results, then it might be a directory (and if not,
-	 * then we'll stat and return immediately in the next level of
-	 * recursion). */
-	if (entry->d_type != DT_DIR &&
-	    entry->d_type != DT_LNK &&
-	    entry->d_type != DT_UNKNOWN)
-	{
+	/* Ignore any files/directories the user has configured to
+	 * ignore.  We do this before dirent_type both for performance
+	 * and because we don't care if dirent_type fails on entries
+	 * that are explicitly ignored.
+	 */
+	if (_entry_in_ignore_list (entry->d_name, state)) {
+	    if (state->debug)
+		printf ("(D) add_files_recursive, pass 1: explicitly ignoring %s/%s\n",
+			path, entry->d_name);
+	    continue;
+	}
+
+	/* We only want to descend into directories (and symlinks to
+	 * directories). */
+	entry_type = dirent_type (path, entry);
+	if (entry_type == -1) {
+	    /* Be pessimistic, e.g. so we don't lose lots of mail just
+	     * because a user broke a symlink. */
+	    fprintf (stderr, "Error reading file %s/%s: %s\n",
+		     path, entry->d_name, strerror (errno));
+	    return NOTMUCH_STATUS_FILE_ERROR;
+	} else if (entry_type != S_IFDIR) {
 	    continue;
 	}
 
 	/* Ignore special directories to avoid infinite recursion.
-	 * Also ignore the .notmuch directory, any "tmp" directory
-	 * that appears within a maildir and files/directories
-	 * the user has configured to be ignored.
+	 * Also ignore the .notmuch directory and any "tmp" directory
+	 * that appears within a maildir.
 	 */
 	if (strcmp (entry->d_name, ".") == 0 ||
 	    strcmp (entry->d_name, "..") == 0 ||
 	    (is_maildir && strcmp (entry->d_name, "tmp") == 0) ||
-	    strcmp (entry->d_name, ".notmuch") == 0 ||
-	    _entry_in_ignore_list (entry->d_name, state))
-	{
+	    strcmp (entry->d_name, ".notmuch") == 0)
 	    continue;
-	}
 
 	next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
-	status = add_files_recursive (notmuch, next, state);
+	status = add_files (notmuch, next, state);
 	if (status) {
 	    ret = status;
 	    goto DONE;
@@ -374,8 +511,13 @@ add_files_recursive (notmuch_database_t *notmuch,
         entry = fs_entries[i];
 
 	/* Ignore files & directories user has configured to be ignored */
-	if (_entry_in_ignore_list (entry->d_name, state))
+	if (_entry_in_ignore_list (entry->d_name, state)) {
+	    if (state->debug)
+		printf ("(D) add_files_recursive, pass 2: explicitly ignoring %s/%s\n",
+			path,
+			entry->d_name);
 	    continue;
+	}
 
 	/* Check if we've walked past any names in db_files or
 	 * db_subdirs. If so, these have been deleted. */
@@ -386,6 +528,10 @@ add_files_recursive (notmuch_database_t *notmuch,
 					      "%s/%s", path,
 					      notmuch_filenames_get (db_files));
 
+	    if (state->debug)
+		printf ("(D) add_files_recursive, pass 2: queuing passed file %s for deletion from database\n",
+			absolute);
+
 	    _filename_list_add (state->removed_files, absolute);
 
 	    notmuch_filenames_move_to_next (db_files);
@@ -400,6 +546,9 @@ add_files_recursive (notmuch_database_t *notmuch,
 	    {
 		char *absolute = talloc_asprintf (state->removed_directories,
 						  "%s/%s", path, filename);
+		if (state->debug)
+		    printf ("(D) add_files_recursive, pass 2: queuing passed directory %s for deletion from database\n",
+			absolute);
 
 		_filename_list_add (state->removed_directories, absolute);
 	    }
@@ -407,31 +556,13 @@ add_files_recursive (notmuch_database_t *notmuch,
 	    notmuch_filenames_move_to_next (db_subdirs);
 	}
 
-	/* If we're looking at a symlink, we only want to add it if it
-	 * links to a regular file, (and not to a directory, say).
-	 *
-	 * Similarly, if the file is of unknown type (due to filesystem
-	 * limitations), then we also need to look closer.
-	 *
-	 * In either case, a stat does the trick.
-	 */
-	if (entry->d_type == DT_LNK || entry->d_type == DT_UNKNOWN) {
-	    int err;
-
-	    next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
-	    err = stat (next, &st);
-	    talloc_free (next);
-	    next = NULL;
-
-	    /* Don't emit an error for a link pointing nowhere, since
-	     * the directory-traversal pass will have already done
-	     * that. */
-	    if (err)
-		continue;
-
-	    if (! S_ISREG (st.st_mode))
-		continue;
-	} else if (entry->d_type != DT_REG) {
+	/* Only add regular files (and symlinks to regular files). */
+	entry_type = dirent_type (path, entry);
+	if (entry_type == -1) {
+	    fprintf (stderr, "Error reading file %s/%s: %s\n",
+		     path, entry->d_name, strerror (errno));
+	    return NOTMUCH_STATUS_FILE_ERROR;
+	} else if (entry_type != S_IFREG) {
 	    continue;
 	}
 
@@ -449,76 +580,23 @@ add_files_recursive (notmuch_database_t *notmuch,
 
 	state->processed_files++;
 
-	if (state->verbose) {
+	if (state->verbosity >= VERBOSITY_VERBOSE) {
 	    if (state->output_is_a_tty)
 		printf("\r\033[K");
 
-	    printf ("%i/%i: %s",
-		    state->processed_files,
-		    state->total_files,
+	    printf ("%i/%i: %s", state->processed_files, state->total_files,
 		    next);
 
 	    putchar((state->output_is_a_tty) ? '\r' : '\n');
 	    fflush (stdout);
 	}
 
-	status = notmuch_database_begin_atomic (notmuch);
-	if (status) {
-	    ret = status;
-	    goto DONE;
-	}
-
-	status = notmuch_database_add_message (notmuch, next, &message);
-	switch (status) {
-	/* success */
-	case NOTMUCH_STATUS_SUCCESS:
-	    state->added_messages++;
-	    notmuch_message_freeze (message);
-	    for (tag=state->new_tags; *tag != NULL; tag++)
-	        notmuch_message_add_tag (message, *tag);
-	    if (state->synchronize_flags == TRUE)
-		notmuch_message_maildir_flags_to_tags (message);
-	    notmuch_message_thaw (message);
-	    break;
-	/* Non-fatal issues (go on to next file) */
-	case NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID:
-	    if (state->synchronize_flags == TRUE)
-		notmuch_message_maildir_flags_to_tags (message);
-	    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_READ_ONLY_DATABASE:
-	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_UNBALANCED_ATOMIC:
-	case NOTMUCH_STATUS_LAST_STATUS:
-	    INTERNAL_ERROR ("add_message returned unexpected value: %d",  status);
-	    goto DONE;
-	}
-
-	status = notmuch_database_end_atomic (notmuch);
+	status = add_file (notmuch, next, state);
 	if (status) {
 	    ret = status;
 	    goto DONE;
 	}
 
-	if (message) {
-	    notmuch_message_destroy (message);
-	    message = NULL;
-	}
-
 	if (do_print_progress) {
 	    do_print_progress = 0;
 	    generic_print_progress ("Processed", "files", state->tv_start,
@@ -539,6 +617,9 @@ add_files_recursive (notmuch_database_t *notmuch,
 	char *absolute = talloc_asprintf (state->removed_files,
 					  "%s/%s", path,
 					  notmuch_filenames_get (db_files));
+	if (state->debug)
+	    printf ("(D) add_files_recursive, pass 3: queuing leftover file %s for deletion from database\n",
+		    absolute);
 
 	_filename_list_add (state->removed_files, absolute);
 
@@ -551,6 +632,10 @@ add_files_recursive (notmuch_database_t *notmuch,
 					  "%s/%s", path,
 					  notmuch_filenames_get (db_subdirs));
 
+	if (state->debug)
+	    printf ("(D) add_files_recursive, pass 3: queuing leftover directory %s for deletion from database\n",
+		    absolute);
+
 	_filename_list_add (state->removed_directories, absolute);
 
 	notmuch_filenames_move_to_next (db_subdirs);
@@ -591,7 +676,7 @@ setup_progress_printing_timer (void)
     struct sigaction action;
     struct itimerval timerval;
 
-    /* Setup our handler for SIGALRM */
+    /* Set up our handler for SIGALRM */
     memset (&action, 0, sizeof (struct sigaction));
     action.sa_handler = handle_sigalrm;
     sigemptyset (&action.sa_mask);
@@ -625,32 +710,6 @@ stop_progress_printing_timer (void)
 }
 
 
-/* This is the top-level entry point for add_files. It does a couple
- * of error checks and then calls into the recursive function. */
-static notmuch_status_t
-add_files (notmuch_database_t *notmuch,
-	   const char *path,
-	   add_files_state_t *state)
-{
-    notmuch_status_t status;
-    struct stat st;
-
-    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;
-    }
-
-    status = add_files_recursive (notmuch, path, state);
-
-    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-directories
@@ -662,10 +721,9 @@ count_files (const char *path, int *count, add_files_state_t *state)
 {
     struct dirent *entry = NULL;
     char *next;
-    struct stat st;
     struct dirent **fs_entries = NULL;
     int num_fs_entries = scandir (path, &fs_entries, 0, dirent_sort_inode);
-    int i = 0;
+    int entry_type, i;
 
     if (num_fs_entries == -1) {
 	fprintf (stderr, "Warning: failed to open directory %s: %s\n",
@@ -673,11 +731,8 @@ count_files (const char *path, int *count, add_files_state_t *state)
 	goto DONE;
     }
 
-    while (!interrupted) {
-        if (i == num_fs_entries)
-	    break;
-
-        entry = fs_entries[i++];
+    for (i = 0; i < num_fs_entries && ! interrupted; i++) {
+        entry = fs_entries[i];
 
 	/* Ignore special directories to avoid infinite recursion.
 	 * Also ignore the .notmuch directory and files/directories
@@ -688,6 +743,10 @@ count_files (const char *path, int *count, add_files_state_t *state)
 	    strcmp (entry->d_name, ".notmuch") == 0 ||
 	    _entry_in_ignore_list (entry->d_name, state))
 	{
+	    if (state->debug && _entry_in_ignore_list (entry->d_name, state))
+		printf ("(D) count_files: explicitly ignoring %s/%s\n",
+			path,
+			entry->d_name);
 	    continue;
 	}
 
@@ -698,15 +757,14 @@ count_files (const char *path, int *count, add_files_state_t *state)
 	    continue;
 	}
 
-	stat (next, &st);
-
-	if (S_ISREG (st.st_mode)) {
+	entry_type = dirent_type (path, entry);
+	if (entry_type == S_IFREG) {
 	    *count = *count + 1;
-	    if (*count % 1000 == 0) {
+	    if (*count % 1000 == 0 && state->verbosity >= VERBOSITY_NORMAL) {
 		printf ("Found %d files so far.\r", *count);
 		fflush (stdout);
 	    }
-	} else if (S_ISDIR (st.st_mode)) {
+	} else if (entry_type == S_IFDIR) {
 	    count_files (next, count, state);
 	}
 
@@ -820,60 +878,124 @@ _remove_directory (void *ctx,
 	    goto DONE;
     }
 
+    /*
+     * XXX: The library does not have a function to remove a directory
+     * document for a path. Usually this doesn't matter except for a
+     * slight waste of space. However, if the directory gets added to
+     * the filesystem again, the old directory document is found with
+     * the old mtime. Reset the directory mtime to avoid problems.
+     */
+    notmuch_directory_set_mtime (directory, 0);
+
   DONE:
     notmuch_directory_destroy (directory);
     return status;
 }
 
+static void
+print_results (const add_files_state_t *state)
+{
+    double elapsed;
+    struct timeval tv_now;
+
+    gettimeofday (&tv_now, NULL);
+    elapsed = notmuch_time_elapsed (state->tv_start, tv_now);
+
+    if (state->processed_files) {
+	printf ("Processed %d %s in ", state->processed_files,
+		state->processed_files == 1 ? "file" : "total files");
+	notmuch_time_print_formatted_seconds (elapsed);
+	if (elapsed > 1)
+	    printf (" (%d files/sec.).\033[K\n",
+		    (int) (state->processed_files / elapsed));
+	else
+	    printf (".\033[K\n");
+    }
+
+    if (state->added_messages)
+	printf ("Added %d new %s to the database.", state->added_messages,
+		state->added_messages == 1 ? "message" : "messages");
+    else
+	printf ("No new mail.");
+
+    if (state->removed_messages)
+	printf (" Removed %d %s.", state->removed_messages,
+		state->removed_messages == 1 ? "message" : "messages");
+
+    if (state->renamed_messages)
+	printf (" Detected %d file %s.", state->renamed_messages,
+		state->renamed_messages == 1 ? "rename" : "renames");
+
+    printf ("\n");
+}
+
 int
-notmuch_new_command (void *ctx, int argc, char *argv[])
+notmuch_new_command (notmuch_config_t *config, int argc, char *argv[])
 {
-    notmuch_config_t *config;
     notmuch_database_t *notmuch;
     add_files_state_t add_files_state;
-    double elapsed;
-    struct timeval tv_now, tv_start;
+    struct timeval tv_start;
     int ret = 0;
     struct stat st;
     const char *db_path;
     char *dot_notmuch_path;
     struct sigaction action;
     _filename_node_t *f;
-    int i;
+    int opt_index;
+    unsigned int i;
     notmuch_bool_t timer_is_active = FALSE;
-    notmuch_bool_t run_hooks = TRUE;
+    notmuch_bool_t no_hooks = FALSE;
+    notmuch_bool_t quiet = FALSE, verbose = FALSE;
+    notmuch_status_t status;
 
-    add_files_state.verbose = 0;
+    add_files_state.verbosity = VERBOSITY_NORMAL;
+    add_files_state.debug = FALSE;
     add_files_state.output_is_a_tty = isatty (fileno (stdout));
 
-    argc--; argv++; /* skip subcommand argument */
+    notmuch_opt_desc_t options[] = {
+	{ NOTMUCH_OPT_BOOLEAN,  &quiet, "quiet", 'q', 0 },
+	{ NOTMUCH_OPT_BOOLEAN,  &verbose, "verbose", 'v', 0 },
+	{ NOTMUCH_OPT_BOOLEAN,  &add_files_state.debug, "debug", 'd', 0 },
+	{ NOTMUCH_OPT_BOOLEAN,  &no_hooks, "no-hooks", 'n', 0 },
+	{ NOTMUCH_OPT_INHERIT, (void *) &notmuch_shared_options, NULL, 0, 0 },
+	{ 0, 0, 0, 0, 0 }
+    };
 
-    for (i = 0; i < argc && argv[i][0] == '-'; i++) {
-	if (STRNCMP_LITERAL (argv[i], "--verbose") == 0) {
-	    add_files_state.verbose = 1;
-	} else if (strcmp (argv[i], "--no-hooks") == 0) {
-	    run_hooks = FALSE;
-	} else {
-	    fprintf (stderr, "Unrecognized option: %s\n", argv[i]);
-	    return 1;
-	}
-    }
-    config = notmuch_config_open (ctx, NULL, NULL);
-    if (config == NULL)
-	return 1;
+    opt_index = parse_arguments (argc, argv, options, 1);
+    if (opt_index < 0)
+	return EXIT_FAILURE;
+
+    notmuch_process_shared_options (argv[0]);
+
+    /* quiet trumps verbose */
+    if (quiet)
+	add_files_state.verbosity = VERBOSITY_QUIET;
+    else if (verbose)
+	add_files_state.verbosity = VERBOSITY_VERBOSE;
 
     add_files_state.new_tags = notmuch_config_get_new_tags (config, &add_files_state.new_tags_length);
     add_files_state.new_ignore = notmuch_config_get_new_ignore (config, &add_files_state.new_ignore_length);
     add_files_state.synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);
     db_path = notmuch_config_get_database_path (config);
 
-    if (run_hooks) {
+    for (i = 0; i < add_files_state.new_tags_length; i++) {
+	const char *error_msg;
+
+	error_msg = illegal_tag (add_files_state.new_tags[i], FALSE);
+	if (error_msg) {
+	    fprintf (stderr, "Error: tag '%s' in new.tags: %s\n",
+		     add_files_state.new_tags[i], error_msg);
+	    return EXIT_FAILURE;
+	}
+    }
+
+    if (!no_hooks) {
 	ret = notmuch_run_hook (db_path, "pre-new");
 	if (ret)
-	    return ret;
+	    return EXIT_FAILURE;
     }
 
-    dot_notmuch_path = talloc_asprintf (ctx, "%s/%s", db_path, ".notmuch");
+    dot_notmuch_path = talloc_asprintf (config, "%s/%s", db_path, ".notmuch");
 
     if (stat (dot_notmuch_path, &st)) {
 	int count;
@@ -881,33 +1003,78 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
 	count = 0;
 	count_files (db_path, &count, &add_files_state);
 	if (interrupted)
-	    return 1;
+	    return EXIT_FAILURE;
 
-	printf ("Found %d total files (that's not much mail).\n", count);
+	if (add_files_state.verbosity >= VERBOSITY_NORMAL)
+	    printf ("Found %d total files (that's not much mail).\n", count);
 	if (notmuch_database_create (db_path, &notmuch))
-	    return 1;
+	    return EXIT_FAILURE;
 	add_files_state.total_files = count;
     } else {
-	if (notmuch_database_open (db_path, NOTMUCH_DATABASE_MODE_READ_WRITE,
-				   &notmuch))
-	    return 1;
+	char *status_string = NULL;
+	if (notmuch_database_open_verbose (db_path, NOTMUCH_DATABASE_MODE_READ_WRITE,
+					   &notmuch, &status_string)) {
+	    if (status_string) {
+		fputs (status_string, stderr);
+		free (status_string);
+	    }
+	    return EXIT_FAILURE;
+	}
+
+	notmuch_exit_if_unmatched_db_uuid (notmuch);
 
 	if (notmuch_database_needs_upgrade (notmuch)) {
-	    printf ("Welcome to a new version of notmuch! Your database will now be upgraded.\n");
+	    time_t now = time (NULL);
+	    struct tm *gm_time = gmtime (&now);
+
+	    /* since dump files are written atomically, the amount of
+	     * harm from overwriting one within a second seems
+	     * relatively small. */
+
+	    const char *backup_name =
+		talloc_asprintf (notmuch, "%s/dump-%04d%02d%02dT%02d%02d%02d.gz",
+				 dot_notmuch_path,
+				 gm_time->tm_year + 1900,
+				 gm_time->tm_mon + 1,
+				 gm_time->tm_mday,
+				 gm_time->tm_hour,
+				 gm_time->tm_min,
+				 gm_time->tm_sec);
+
+	    if (add_files_state.verbosity >= VERBOSITY_NORMAL) {
+		printf ("Welcome to a new version of notmuch! Your database will now be upgraded.\n");
+		printf ("This process is safe to interrupt.\n");
+		printf ("Backing up tags to %s...\n", backup_name);
+	    }
+
+	    if (notmuch_database_dump (notmuch, backup_name, "",
+				       DUMP_FORMAT_BATCH_TAG, TRUE)) {
+		fprintf (stderr, "Backup failed. Aborting upgrade.");
+		return EXIT_FAILURE;
+	    }
+
 	    gettimeofday (&add_files_state.tv_start, NULL);
-	    notmuch_database_upgrade (notmuch, upgrade_print_progress,
-				      &add_files_state);
-	    printf ("Your notmuch database has now been upgraded to database format version %u.\n",
-		    notmuch_database_get_version (notmuch));
+	    status = notmuch_database_upgrade (
+		notmuch,
+		add_files_state.verbosity >= VERBOSITY_NORMAL ? upgrade_print_progress : NULL,
+		&add_files_state);
+	    if (status) {
+		printf ("Upgrade failed: %s\n",
+			notmuch_status_to_string (status));
+		notmuch_database_destroy (notmuch);
+		return EXIT_FAILURE;
+	    }
+	    if (add_files_state.verbosity >= VERBOSITY_NORMAL)
+		printf ("Your notmuch database has now been upgraded.\n");
 	}
 
 	add_files_state.total_files = 0;
     }
 
     if (notmuch == NULL)
-	return 1;
+	return EXIT_FAILURE;
 
-    /* Setup our handler for SIGINT. We do this after having
+    /* Set up our handler for SIGINT. We do this after having
      * potentially done a database upgrade we this interrupt handler
      * won't support. */
     memset (&action, 0, sizeof (struct sigaction));
@@ -924,12 +1091,12 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
     add_files_state.removed_messages = add_files_state.renamed_messages = 0;
     gettimeofday (&add_files_state.tv_start, NULL);
 
-    add_files_state.removed_files = _filename_list_create (ctx);
-    add_files_state.removed_directories = _filename_list_create (ctx);
-    add_files_state.directory_mtimes = _filename_list_create (ctx);
+    add_files_state.removed_files = _filename_list_create (config);
+    add_files_state.removed_directories = _filename_list_create (config);
+    add_files_state.directory_mtimes = _filename_list_create (config);
 
-    if (! debugger_is_active () && add_files_state.output_is_a_tty
-	&& ! add_files_state.verbose) {
+    if (add_files_state.verbosity == VERBOSITY_NORMAL &&
+	add_files_state.output_is_a_tty && ! debugger_is_active ()) {
 	setup_progress_printing_timer ();
 	timer_is_active = TRUE;
     }
@@ -953,7 +1120,7 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
 
     gettimeofday (&tv_start, NULL);
     for (f = add_files_state.removed_directories->head, i = 0; f && !interrupted; f = f->next, i++) {
-	ret = _remove_directory (ctx, notmuch, f->filename, &add_files_state);
+	ret = _remove_directory (config, notmuch, f->filename, &add_files_state);
 	if (ret)
 	    goto DONE;
 	if (do_print_progress) {
@@ -965,7 +1132,6 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
     }
 
     for (f = add_files_state.directory_mtimes->head; f && !interrupted; f = f->next) {
-	notmuch_status_t status;
 	notmuch_directory_t *directory;
 	status = notmuch_database_get_directory (notmuch, f->filename, &directory);
 	if (status == NOTMUCH_STATUS_SUCCESS && directory) {
@@ -982,45 +1148,8 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
     if (timer_is_active)
 	stop_progress_printing_timer ();
 
-    gettimeofday (&tv_now, NULL);
-    elapsed = notmuch_time_elapsed (add_files_state.tv_start,
-				    tv_now);
-
-    if (add_files_state.processed_files) {
-	printf ("Processed %d %s in ", add_files_state.processed_files,
-		add_files_state.processed_files == 1 ?
-		"file" : "total files");
-	notmuch_time_print_formatted_seconds (elapsed);
-	if (elapsed > 1) {
-	    printf (" (%d files/sec.).\033[K\n",
-		    (int) (add_files_state.processed_files / elapsed));
-	} else {
-	    printf (".\033[K\n");
-	}
-    }
-
-    if (add_files_state.added_messages) {
-	printf ("Added %d new %s to the database.",
-		add_files_state.added_messages,
-		add_files_state.added_messages == 1 ?
-		"message" : "messages");
-    } else {
-	printf ("No new mail.");
-    }
-
-    if (add_files_state.removed_messages) {
-	printf (" Removed %d %s.",
-		add_files_state.removed_messages,
-		add_files_state.removed_messages == 1 ? "message" : "messages");
-    }
-
-    if (add_files_state.renamed_messages) {
-	printf (" Detected %d file %s.",
-		add_files_state.renamed_messages,
-		add_files_state.renamed_messages == 1 ? "rename" : "renames");
-    }
-
-    printf ("\n");
+    if (add_files_state.verbosity >= VERBOSITY_NORMAL)
+	print_results (&add_files_state);
 
     if (ret)
 	fprintf (stderr, "Note: A fatal error was encountered: %s\n",
@@ -1028,8 +1157,8 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
 
     notmuch_database_destroy (notmuch);
 
-    if (run_hooks && !ret && !interrupted)
+    if (!no_hooks && !ret && !interrupted)
 	ret = notmuch_run_hook (db_path, "post-new");
 
-    return ret || interrupted;
+    return ret || interrupted ? EXIT_FAILURE : EXIT_SUCCESS;
 }