[PATCH v2] tags_to_maildir_flags: Don't rename if no flags change
Austin Clements
amdragon at MIT.EDU
Mon Jul 11 17:04:43 PDT 2011
LGTM.
Quoth Louis Rilling on Jul 12 at 12:41 am:
> notmuch_message_tags_to_maildir_flags() unconditionally moves messages from
> maildir directory "new/" to maildir directory "cur/", which makes messages lose
> their "new" status in the MUA. However some users want to keep this "new"
> status after, for instance, an auto-tagging of new messages.
>
> However, as Austin mentioned and according to the maildir specification,
> messages living in "new/" are not allowed to have flags, even if mutt allows it
> to happen. For this reason, this patch prevents moving messages from "new/" to
> "cur/", only if no flags have to be changed. It's hopefully enough to satisfy
> mutt (and maybe other MUAs showing the "new" status) users checking the "new"
> status.
>
> Changelog:
> * v2: Fix bool type as well as NULL returned despite having no errors (Austin
> Clements)
>
> Signed-off-by: Louis Rilling <l.rilling at av7.net>
> ---
> lib/message.cc | 12 +++++++++++-
> 1 files changed, 11 insertions(+), 1 deletions(-)
>
> diff --git a/lib/message.cc b/lib/message.cc
> index 64b6cf8..3f8c4ba 100644
> --- a/lib/message.cc
> +++ b/lib/message.cc
> @@ -1139,7 +1139,7 @@ _get_maildir_flag_actions (notmuch_message_t *message,
> * compute the new maildir filename.
> *
> * If the existing filename is in the directory "new", the new
> - * filename will be in the directory "cur".
> + * filename will be in the directory "cur", unless no flags are changed.
> *
> * After a sequence of ":2," in the filename, any subsequent
> * single-character flags will be added or removed according to the
> @@ -1162,6 +1162,7 @@ _new_maildir_filename (void *ctx,
> char *filename_new, *dir;
> char flag_map[128];
> int flags_in_map = 0;
> + notmuch_bool_t flags_changed = FALSE;
> unsigned int i;
> char *s;
>
> @@ -1202,6 +1203,7 @@ _new_maildir_filename (void *ctx,
> if (flag_map[flag] == 0) {
> flag_map[flag] = 1;
> flags_in_map++;
> + flags_changed = TRUE;
> }
> }
>
> @@ -1210,9 +1212,17 @@ _new_maildir_filename (void *ctx,
> if (flag_map[flag]) {
> flag_map[flag] = 0;
> flags_in_map--;
> + flags_changed = TRUE;
> }
> }
>
> + /* No need to rename. Messages in new/ can be kept in new/.
> + * Note: We don't even try to fix buggy messages having flags and living in
> + * new/. It's not our business.
> + */
> + if (!flags_changed)
> + return talloc_strdup (ctx, filename);
> +
> filename_new = (char *) talloc_size (ctx,
> info - filename +
> strlen (":2,") + flags_in_map + 1);
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