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notmuch-new: Test if directory looks like Maildir before skipping tmp.

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'notmuch new' skips directory entries with the name 'tmp'. This is to
prevent notmuch from processing possibly incomplete Maildir messages
stored in that directory.

This patch attempts to refine the feature. If "tmp" entry is found,
it first checks if the containing directory looks like a Maildir
directory. This is done by searching for other common Maildir
subdirectories. If they exist and if the entry "tmp" is a directory
then it is skipped.

Files and subdirectories with the name "tmp" that do not look like
Maildir will still be processed by 'notmuch new'.

Signed-off-by: Jan Janak <jan@ryngle.com>
This commit is contained in:
Jan Janak 2009-11-25 22:11:45 +01:00 committed by Carl Worth
parent e991148b00
commit 24ae7718b7
1 changed files with 28 additions and 1 deletions
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29
notmuch-new.c
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@ -80,6 +80,31 @@ static int ino_cmp(const struct dirent **a, const struct dirent **b)
return ((*a)->d_ino < (*b)->d_ino) ? -1 : 1;
}
/* Test if the directory looks like a Maildir directory.
*
* Search through the array of directory entries to see if we can find all
* three subdirectories typical for Maildir, that is "new", "cur", and "tmp".
*
* Return 1 if the directory looks like a Maildir and 0 otherwise.
*/
static int is_maildir (struct dirent **entries, int count)
{
int i, found = 0;
for (i = 0; i < count; i++) {
if (entries[i]->d_type != DT_DIR) continue;
if (strcmp(entries[i]->d_name, "new") == 0 ||
strcmp(entries[i]->d_name, "cur") == 0 ||
strcmp(entries[i]->d_name, "tmp") == 0)
{
found++;
if (found == 3) return 1;
}
}
return 0;
}
/* Examine 'path' recursively as follows:
*
* o Ask the filesystem for the mtime of 'path' (path_mtime)
@ -159,7 +184,9 @@ add_files_recursive (notmuch_database_t *notmuch,
* user specify files to be ignored. */
if (strcmp (entry->d_name, ".") == 0 ||
strcmp (entry->d_name, "..") == 0 ||
strcmp (entry->d_name, "tmp") == 0 ||
(entry->d_type == DT_DIR &&
(strcmp (entry->d_name, "tmp") == 0) &&
is_maildir (namelist, num_entries)) ||
strcmp (entry->d_name, ".notmuch") ==0)
{
continue;