[notmuch] Subject: [PATCH] update the check whether a dir entry should be ignored.
Dirk-Jan C. Binnema
djcb.bulk at gmail.com
Sat Dec 12 08:45:49 PST 2009
Hi David,
>>>>> "DM" == David Maus <maus.david at gmail.com> writes:
>> There is one maybe controversial change, namely that it ignores all
>> dot-dirs; this works fine for .notmuch and .nnmaildir (gnus), but maybe
>> there is some valid use case for having mail in dot-dirs. Maybe one of
>> the IMAP-servers does this? Not sure. Anyway, I can change that part.
DM> Yes, ignore dot-dirs completely is not a good idea as the "." is a
DM> common separator for mailbox hierarchies on imap servers. Dovecot uses
DM> it by default, Courier too.
Thanks. I was suspecting something like that. Attached, updated patch that
also updates the counting part.
---
notmuch-new.c | 75 ++++++++++++++++++++++++++++++++++++++-------------------
1 files changed, 50 insertions(+), 25 deletions(-)
diff --git a/notmuch-new.c b/notmuch-new.c
index 9d20616..411e084 100644
--- a/notmuch-new.c
+++ b/notmuch-new.c
@@ -109,6 +109,44 @@ is_maildir (struct dirent **entries, int count)
return 0;
}
+
+static int
+ignore_dir_entry (const char* path, struct dirent *entry)
+{
+ char noindex[4096]; /* any path will fit */
+
+ /* ignore everything starting with a dot; this covers hidden
+ * files, as well as special dir (. and ..), but also things like
+ * gnus .nnmaildir or .notmuch */
+
+ /* special handling for dot-dirs */
+ if (entry->d_name[0] == '.') {
+
+ /* ignore '.' and '..' */
+ if (entry->d_name[1] == '\0' ||
+ (entry->d_name[1] == '.' && entry->d_name[2] == '\0'))
+ return 1;
+
+ if (entry->d_name[1] == 'n') { /* optimization */
+ /* ignore notmuch, gnus special dirs (or such-named files) */
+ if (strcmp (entry->d_name, ".notmuch") == 0 ||
+ strcmp (entry->d_name, ".nnmaildir") == 0)
+ return 1;
+ }
+ }
+
+ /* we also check if dir contains a file called '.noindex'; if so,
+ * we ignore this directory; alloca would be suitable here, if not
+ * for the portability. */
+ snprintf (noindex, sizeof(noindex), "%s/%s/.noindex", path, entry->d_name);
+ if (access (noindex, F_OK) == 0)
+ return 1;
+
+ return 0; /* don't ignore */
+}
+
+
+
/* Examine 'path' recursively as follows:
*
* o Ask the filesystem for the mtime of 'path' (path_mtime)
@@ -181,21 +219,17 @@ add_files_recursive (notmuch_database_t *notmuch,
if (path_mtime <= path_dbtime && entry->d_type == DT_REG)
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 ||
- (entry->d_type == DT_DIR &&
- (strcmp (entry->d_name, "tmp") == 0) &&
- is_maildir (namelist, num_entries)) ||
- strcmp (entry->d_name, ".notmuch") ==0)
- {
- continue;
- }
+ /* ignore tmp Maildirs, for obvious reasons */
+ if (entry->d_type == DT_DIR &&
+ (strcmp (entry->d_name, "tmp") == 0) &&
+ is_maildir (namelist, num_entries))
+ continue;
+
+ /* ignore special directories and files */
+ if (ignore_dir_entry (path, entry))
+ continue;
+
next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
if (stat (next, st)) {
@@ -394,18 +428,9 @@ count_files (const char *path, int *count)
entry= namelist[i++];
- /* 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)
- {
+ if (ignore_dir_entry (path, entry))
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",
--
1.6.3.3
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