[PATCH v4 1/5] cli: slightly refactor "notmuch reply" address scanning functions
Jani Nikula
jani at nikula.org
Sat Jan 14 06:22:37 PST 2012
On Thu, 12 Jan 2012 16:59:05 -0500, Austin Clements <amdragon at MIT.EDU> wrote:
> LGTM. One thing you could fix below (and a few comments), but not
> enough alone to warrant a new version.
>
> Quoth Jani Nikula on Jan 12 at 11:40 pm:
> > Slightly refactor "notmuch reply" recipient and user from address scanning
> > functions in preparation for reply-to-sender feature.
> >
> > Add support for not adding messages at all (just scan for user from
> > address), and returning the number of messages added.
> >
> > No externally visible functional changes.
> >
> > Signed-off-by: Jani Nikula <jani at nikula.org>
> > ---
> > notmuch-reply.c | 74 ++++++++++++++++++++++++++++--------------------------
> > 1 files changed, 38 insertions(+), 36 deletions(-)
> >
> > diff --git a/notmuch-reply.c b/notmuch-reply.c
> > index 000f6da..4fae66f 100644
> > --- a/notmuch-reply.c
> > +++ b/notmuch-reply.c
> > @@ -168,22 +168,28 @@ address_is_users (const char *address, notmuch_config_t *config)
> > return 0;
> > }
> >
> > -/* For each address in 'list' that is not configured as one of the
> > - * user's addresses in 'config', add that address to 'message' as an
> > - * address of 'type'.
> > +/* Scan addresses in 'list'.
> > *
> > - * The first address encountered that *is* the user's address will be
> > - * returned, (otherwise NULL is returned).
> > + * If 'message' is non-NULL, then for each address in 'list' that is not
> > + * configured as one of the user's addresses in 'config', add that address to
> > + * 'message' as an address of 'type'.
> > + *
> > + * If 'user_from' is non-NULL and *user_from is NULL, the first address
> > + * encountered in 'list' that *is* the user's address will be set to *user_from.
> > + *
> > + * Return the number of addresses added to 'message'. (If 'message' is NULL, the
> > + * function returns 0 by definition.)
>
> Ah, I like the return value. Better than adding an umpteenth argument
> like I was suggesting.
>
> > */
> > -static const char *
> > -add_recipients_for_address_list (GMimeMessage *message,
> > - notmuch_config_t *config,
> > - GMimeRecipientType type,
> > - InternetAddressList *list)
> > +static unsigned int
> > +scan_address_list (InternetAddressList *list,
> > + notmuch_config_t *config,
> > + GMimeMessage *message,
> > + GMimeRecipientType type,
> > + const char **user_from)
> > {
> > InternetAddress *address;
> > int i;
> > - const char *ret = NULL;
> > + unsigned int n = 0;
> >
> > for (i = 0; i < internet_address_list_length (list); i++) {
> > address = internet_address_list_get_address (list, i);
> > @@ -196,8 +202,7 @@ add_recipients_for_address_list (GMimeMessage *message,
> > if (group_list == NULL)
> > continue;
> >
> > - add_recipients_for_address_list (message, config,
> > - type, group_list);
> > + n += scan_address_list (group_list, config, message, type, NULL);
>
> Should the NULL above be user_from? You're being compatible with the
> original code, which is the right thing to do in this patch, but the
> new-found explicitness made me wonder if this is actually a bug.
I didn't even know what a group list was, and if [1] is accurate, I
don't think I've ever seen one either. This does smell like a bug, but
I'm doubtful if anyone would ever notice... Anyway, as you say, it
should be another patch, and independent of this series.
BR,
Jani.
[1] http://www.cs.tut.fi/~jkorpela/rfc/822addr.html
>
> > } else {
> > InternetAddressMailbox *mailbox;
> > const char *name;
> > @@ -209,40 +214,40 @@ add_recipients_for_address_list (GMimeMessage *message,
> > addr = internet_address_mailbox_get_addr (mailbox);
> >
> > if (address_is_users (addr, config)) {
> > - if (ret == NULL)
> > - ret = addr;
> > - } else {
> > + if (user_from && *user_from == NULL)
> > + *user_from = addr;
> > + } else if (message) {
> > g_mime_message_add_recipient (message, type, name, addr);
> > + n++;
> > }
> > }
> > }
> >
> > - return ret;
> > + return n;
> > }
> >
> > -/* For each address in 'recipients' that is not configured as one of
> > - * the user's addresses in 'config', add that address to 'message' as
> > - * an address of 'type'.
> > +/* Scan addresses in 'recipients'.
> > *
> > - * The first address encountered that *is* the user's address will be
> > - * returned, (otherwise NULL is returned).
> > + * See the documentation of scan_address_list() above. This function does
> > + * exactly the same, but converts 'recipients' to an InternetAddressList first.
>
> Just bikeshedding, but comments in the notmuch codebase almost
> universally wrap at 72 columns, not 80 (based on
> egrep '[ /]\* .{70}' *.[ch]*)
>
> > */
> > -static const char *
> > -add_recipients_for_string (GMimeMessage *message,
> > - notmuch_config_t *config,
> > - GMimeRecipientType type,
> > - const char *recipients)
> > +static unsigned int
> > +scan_address_string (const char *recipients,
> > + notmuch_config_t *config,
> > + GMimeMessage *message,
> > + GMimeRecipientType type,
> > + const char **user_from)
> > {
> > InternetAddressList *list;
> >
> > if (recipients == NULL)
> > - return NULL;
> > + return 0;
> >
> > list = internet_address_list_parse_string (recipients);
> > if (list == NULL)
> > - return NULL;
> > + return 0;
> >
> > - return add_recipients_for_address_list (message, config, type, list);
> > + return scan_address_list (list, config, message, type, user_from);
> > }
> >
> > /* Does the address in the Reply-To header of 'message' already appear
> > @@ -324,7 +329,7 @@ add_recipients_from_message (GMimeMessage *reply,
> > }
> >
> > for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {
> > - const char *addr, *recipients;
> > + const char *recipients;
> >
> > recipients = notmuch_message_get_header (message,
> > reply_to_map[i].header);
> > @@ -332,11 +337,8 @@ add_recipients_from_message (GMimeMessage *reply,
> > recipients = notmuch_message_get_header (message,
> > reply_to_map[i].fallback);
> >
> > - addr = add_recipients_for_string (reply, config,
> > - reply_to_map[i].recipient_type,
> > - recipients);
> > - if (from_addr == NULL)
> > - from_addr = addr;
> > + scan_address_string (recipients, config, reply,
> > + reply_to_map[i].recipient_type, &from_addr);
> > }
> >
> > return from_addr;
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