Re: [PATCH v6 02/10] reply: Factor out reply creation

[Jani Nikula <jani@nikula.org>]

On Tue, 21 Feb 2012 23:46:31 -0700, Adam Wolfe Gordon <awg+notmuch@xvx.ca> wrote:
> Factor out the creation of a reply message based on an original
> message so it can be shared by different reply formats.
> ---
>  notmuch-reply.c |  101 +++++++++++++++++++++++++++++++-----------------------
>  1 files changed, 58 insertions(+), 43 deletions(-)
> 
> diff --git a/notmuch-reply.c b/notmuch-reply.c
> index 6b244e6..8e56245 100644
> --- a/notmuch-reply.c
> +++ b/notmuch-reply.c
> @@ -505,6 +505,61 @@ guess_from_received_header (notmuch_config_t *config, notmuch_message_t *message
>      return NULL;
>  }
>  
> +static GMimeMessage *
> +create_reply_message(void *ctx,
> +		     notmuch_config_t *config,
> +		     notmuch_message_t *message,
> +		     notmuch_bool_t reply_all)
> +{
> +    const char *subject, *from_addr = NULL;
> +    const char *in_reply_to, *orig_references, *references;
> +
> +    /* The 1 means we want headers in a "pretty" order. */
> +    GMimeMessage *reply = g_mime_message_new (1);
> +    if (reply == NULL) {
> +	fprintf (stderr, "Out of memory\n");
> +	return NULL;
> +    }
> +
> +    subject = notmuch_message_get_header (message, "subject");
> +    if (subject) {
> +	if (strncasecmp (subject, "Re:", 3))
> +	    subject = talloc_asprintf (ctx, "Re: %s", subject);
> +	g_mime_message_set_subject (reply, subject);
> +    }
> +
> +    from_addr = add_recipients_from_message (reply, config,
> +					     message, reply_all);
> +
> +    if (from_addr == NULL)
> +	from_addr = guess_from_received_header (config, message);
> +
> +    if (from_addr == NULL)
> +	from_addr = notmuch_config_get_user_primary_email (config);
> +
> +    from_addr = talloc_asprintf (ctx, "%s <%s>",
> +				 notmuch_config_get_user_name (config),
> +				 from_addr);
> +    g_mime_object_set_header (GMIME_OBJECT (reply),
> +			      "From", from_addr);
> +
> +    in_reply_to = talloc_asprintf (ctx, "<%s>",
> +				   notmuch_message_get_message_id (message));
> +
> +    g_mime_object_set_header (GMIME_OBJECT (reply),
> +			      "In-Reply-To", in_reply_to);
> +
> +    orig_references = notmuch_message_get_header (message, "references");
> +    references = talloc_asprintf (ctx, "%s%s%s",
> +				  orig_references ? orig_references : "",
> +				  orig_references ? " " : "",
> +				  in_reply_to);
> +    g_mime_object_set_header (GMIME_OBJECT (reply),
> +			      "References", references);
> +
> +    return reply;
> +}
> +
>  static int
>  notmuch_reply_format_default(void *ctx,
>  			     notmuch_config_t *config,
> @@ -515,8 +570,6 @@ notmuch_reply_format_default(void *ctx,
>      GMimeMessage *reply;
>      notmuch_messages_t *messages;
>      notmuch_message_t *message;
> -    const char *subject, *from_addr = NULL;
> -    const char *in_reply_to, *orig_references, *references;
>      const notmuch_show_format_t *format = &format_reply;
>  
>      for (messages = notmuch_query_search_messages (query);
> @@ -525,48 +578,10 @@ notmuch_reply_format_default(void *ctx,
>      {
>  	message = notmuch_messages_get (messages);
>  
> -	/* The 1 means we want headers in a "pretty" order. */
> -	reply = g_mime_message_new (1);
> -	if (reply == NULL) {
> -	    fprintf (stderr, "Out of memory\n");
> -	    return 1;
> -	}
> -
> -	subject = notmuch_message_get_header (message, "subject");
> -	if (subject) {
> -	    if (strncasecmp (subject, "Re:", 3))
> -		subject = talloc_asprintf (ctx, "Re: %s", subject);
> -	    g_mime_message_set_subject (reply, subject);
> -	}
> -
> -	from_addr = add_recipients_from_message (reply, config, message,
> -						 reply_all);
> +	reply = create_reply_message (ctx, config, message, reply_all);
>  
> -	if (from_addr == NULL)
> -	    from_addr = guess_from_received_header (config, message);
> -
> -	if (from_addr == NULL)
> -	    from_addr = notmuch_config_get_user_primary_email (config);
> -
> -	from_addr = talloc_asprintf (ctx, "%s <%s>",
> -				     notmuch_config_get_user_name (config),
> -				     from_addr);
> -	g_mime_object_set_header (GMIME_OBJECT (reply),
> -				  "From", from_addr);
> -
> -	in_reply_to = talloc_asprintf (ctx, "<%s>",
> -			     notmuch_message_get_message_id (message));
> -
> -	g_mime_object_set_header (GMIME_OBJECT (reply),
> -				  "In-Reply-To", in_reply_to);
> -
> -	orig_references = notmuch_message_get_header (message, "references");
> -	references = talloc_asprintf (ctx, "%s%s%s",
> -				      orig_references ? orig_references : "",
> -				      orig_references ? " " : "",
> -				      in_reply_to);
> -	g_mime_object_set_header (GMIME_OBJECT (reply),
> -				  "References", references);
> +	if (!reply)
> +	    continue;

This changes the existing behaviour, which was to abort on errors. Also,
"continue" here skips notmuch_message_destroy (message). With out of
memory being the only possible error here, perhaps it's just easiest to
abort instead of trying to go on?


BR,
Jani.



>  
>  	show_reply_headers (reply);
>  
> -- 
> 1.7.5.4
> 
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