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Make "notmuch new" ignore directories that are read-only.

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With this, "notmuch new" is now plenty fast even with large archives
spanning many sub-directories. Document this both in "notmuch help"
and also in the output of notmuch setup.
This commit is contained in:
Carl Worth 2009-10-23 17:20:43 -07:00
parent ef944693c3
commit c037dc5e53
1 changed files with 25 additions and 3 deletions
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28
notmuch.c
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@ -54,6 +54,8 @@ typedef struct command {
} command_t;
typedef struct {
int ignore_read_only_directories;
int total_files;
int processed_files;
int added_messages;
@ -160,6 +162,16 @@ add_files_recursive (notmuch_database_t *notmuch,
time_t path_mtime, path_dbtime;
notmuch_status_t status, ret = NOTMUCH_STATUS_SUCCESS;
/* 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)
{
goto DONE;
}
path_mtime = st->st_mtime;
path_dbtime = notmuch_database_get_timestamp (notmuch, path);
@ -448,6 +460,7 @@ setup_command (int argc, char *argv[])
printf ("Next, we'll inspect the messages and create a database of threads:\n");
add_files_state.ignore_read_only_directories = FALSE;
add_files_state.total_files = count;
add_files_state.processed_files = 0;
add_files_state.added_messages = 0;
@ -476,8 +489,12 @@ setup_command (int argc, char *argv[])
}
printf ("When new mail is delivered to %s in the future,\n"
"run \"notmuch new\" to add it to the database.\n",
"run \"notmuch new\" to add it to the database.\n\n",
mail_directory);
printf ("And if you have any sub-directories that are archives (that is,\n"
"they will never receive new mail), marking these directores as\n"
"read-only (chmod u-w /path/to/dir) will make \"notmuch new\"\n"
"much more efficient (it won't even look in those directories).\n\n");
if (ret) {
printf ("Note: At least one error was encountered: %s\n",
@ -511,6 +528,7 @@ new_command (int argc, char *argv[])
mail_directory = notmuch_database_get_path (notmuch);
add_files_state.ignore_read_only_directories = TRUE;
add_files_state.total_files = 0;
add_files_state.processed_files = 0;
add_files_state.added_messages = 0;
@ -752,11 +770,15 @@ restore_command (int argc, char *argv[])
command_t commands[] = {
{ "setup", setup_command,
"Interactively setup notmuch for first use.\n"
"Interactively setup notmuch for first use.\n\n"
"\t\tInvoking notmuch with no command argument will run setup if\n"
"\t\tthe setup command has not previously been completed." },
{ "new", new_command,
"Find and import any new messages."},
"Find and import any new messages.\n\n"
"\t\tScans all sub-directories of the database, adding new files\n"
"\t\tthat are found. Note: \"notmuch new\" will skip any\n"
"\t\tread-only directories, so you can use that to mark\n"
"\t\tdirectories that will not receive any new mail."},
{ "search", search_command,
"<search-term> [...]\n\n"
"\t\tSearch for threads matching the given search terms.\n"