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+Date: Wed, 11 Jan 2012 22:31:46 -0500\r
+From: Austin Clements <amdragon@MIT.EDU>\r
+To: Jani Nikula <jani@nikula.org>\r
+Subject: Re: [PATCH v3 1/4] cli: add support for replying just to the sender\r
+ in "notmuch reply"\r
+Message-ID: <20120112033146.GU20796@mit.edu>\r
+References: <cover.1325794371.git.jani@nikula.org>\r
+ <cover.1326224339.git.jani@nikula.org>\r
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+\r
+Quoth Jani Nikula on Jan 10 at 9:54 pm:\r
+> Add new option --reply-to=(all|sender) to "notmuch reply" to select whether\r
+> to reply to all (sender and all recipients), or just sender. Reply to all\r
+> remains the default.\r
+> \r
+> Credits to Mark Walters <markwalters1009@gmail.com> for his similar earlier\r
+> work where I picked up the basic idea of handling reply-to-sender in\r
+> add_recipients_from_message(). All bugs are mine, though.\r
+> \r
+> Signed-off-by: Jani Nikula <jani@nikula.org>\r
+> \r
+> ---\r
+> \r
+> Settled on --reply-to=(all|sender) per Carl's earlier suggestion\r
+> (id:87pqn5cg4g.fsf@yoom.home.cworth.org) and David's approval on IRC.\r
+> ---\r
+> man/man1/notmuch-reply.1 | 28 +++++++++++++++---\r
+> notmuch-reply.c | 70 ++++++++++++++++++++++++++++++++++-----------\r
+> 2 files changed, 76 insertions(+), 22 deletions(-)\r
+> \r
+> diff --git a/man/man1/notmuch-reply.1 b/man/man1/notmuch-reply.1\r
+> index db464d8..5160ece 100644\r
+> --- a/man/man1/notmuch-reply.1\r
+> +++ b/man/man1/notmuch-reply.1\r
+> @@ -14,11 +14,13 @@ Constructs a reply template for a set of messages.\r
+> To make replying to email easier,\r
+> .B notmuch reply\r
+> takes an existing set of messages and constructs a suitable mail\r
+> -template. The Reply-to header (if any, otherwise From:) is used for\r
+> -the To: address. Vales from the To: and Cc: headers are copied, but\r
+> -not including any of the current user's email addresses (as configured\r
+> -in primary_mail or other_email in the .notmuch\-config file) in the\r
+> -recipient list\r
+> +template. The Reply-to: header (if any, otherwise From:) is used for\r
+> +the To: address. Unless\r
+> +.BR \-\-reply-to=sender\r
+> +is specified, values from the To: and Cc: headers are copied, but not\r
+> +including any of the current user's email addresses (as configured in\r
+> +primary_mail or other_email in the .notmuch\-config file) in the\r
+> +recipient list.\r
+> \r
+> It also builds a suitable new subject, including Re: at the front (if\r
+> not already present), and adding the message IDs of the messages being\r
+> @@ -45,6 +47,22 @@ Includes subject and quoted message body.\r
+> Only produces In\-Reply\-To, References, To, Cc, and Bcc headers.\r
+> .RE\r
+> .RE\r
+> +.RS\r
+> +.TP 4\r
+> +.BR \-\-reply\-to= ( all | sender )\r
+> +.RS\r
+> +.TP 4\r
+> +.BR all " (default)"\r
+> +Replies to all addresses.\r
+> +.TP 4\r
+> +.BR sender\r
+> +Replies only to the sender. If replying to user's own message\r
+> +(Reply-to: or From: header is one of the user's configured email\r
+> +addresses), try To:, Cc:, and Bcc: headers in this order, and copy\r
+> +values from the first that contains something other than only the\r
+> +user's addresses.\r
+> +.RE\r
+> +.RE\r
+> \r
+> See \fBnotmuch-search-terms\fR(7)\r
+> for details of the supported syntax for <search-terms>.\r
+> diff --git a/notmuch-reply.c b/notmuch-reply.c\r
+> index 000f6da..7b785a7 100644\r
+> --- a/notmuch-reply.c\r
+> +++ b/notmuch-reply.c\r
+> @@ -170,7 +170,7 @@ address_is_users (const char *address, notmuch_config_t *config)\r
+> \r
+> /* For each address in 'list' that is not configured as one of the\r
+> * user's addresses in 'config', add that address to 'message' as an\r
+> - * address of 'type'.\r
+> + * address of 'type', if 'add' is true.\r
+\r
+I puzzled over this for a while before I figured out what was actually\r
+going on here. I was confused because this comment makes it sound\r
+like this function doesn't do what its name says if 'add' is false.\r
+And, in fact, it doesn't!\r
+\r
+I understand from an evolutionary standpoint why the code works this\r
+way, but at the very least, I think the comment should call out this\r
+peculiarity. Better might be to rename the function, since it's now\r
+more general purpose than adding recipients for an address list, and\r
+possibly change its API slightly to reflect its generality. Off the\r
+top of my head, I'm thinking something like\r
+\r
+/* Scan address list 'list'.\r
+ *\r
+ * If 'add' is non-NULL, then for each address in 'list' that is not\r
+ * configured as one of the user's addresses in 'config', add that\r
+ * address to 'message' as an address of 'type'. If any addresses are\r
+ * added, set *added_ret to TRUE.\r
+ *\r
+ * If one of the user's addresses is encountered in 'list' and\r
+ * *user_addr_ret is not NULL, set *user_addr_ret to this address.\r
+ */\r
+static void\r
+scan_address_list (InternetAddressList *list,\r
+ notmuch_config_t *config,\r
+ GMimeMessage *add, GMimeRecipientType add_type,\r
+ notmuch_bool_t *added_ret,\r
+ const char **user_addr_ret)\r
+\r
+(The reason for added_ret is below.) This would barely change the\r
+code (in fact, it would simplify the handling of from_addr), but I\r
+think it would make the function less misleading.\r
+\r
+> *\r
+> * The first address encountered that *is* the user's address will be\r
+> * returned, (otherwise NULL is returned).\r
+> @@ -179,7 +179,8 @@ static const char *\r
+> add_recipients_for_address_list (GMimeMessage *message,\r
+> notmuch_config_t *config,\r
+> GMimeRecipientType type,\r
+> - InternetAddressList *list)\r
+> + InternetAddressList *list,\r
+> + notmuch_bool_t add)\r
+> {\r
+> InternetAddress *address;\r
+> int i;\r
+> @@ -197,7 +198,7 @@ add_recipients_for_address_list (GMimeMessage *message,\r
+> continue;\r
+> \r
+> add_recipients_for_address_list (message, config,\r
+> - type, group_list);\r
+> + type, group_list, add);\r
+> } else {\r
+> InternetAddressMailbox *mailbox;\r
+> const char *name;\r
+> @@ -211,7 +212,7 @@ add_recipients_for_address_list (GMimeMessage *message,\r
+> if (address_is_users (addr, config)) {\r
+> if (ret == NULL)\r
+> ret = addr;\r
+> - } else {\r
+> + } else if (add) {\r
+> g_mime_message_add_recipient (message, type, name, addr);\r
+> }\r
+> }\r
+> @@ -222,7 +223,7 @@ add_recipients_for_address_list (GMimeMessage *message,\r
+> \r
+> /* For each address in 'recipients' that is not configured as one of\r
+> * the user's addresses in 'config', add that address to 'message' as\r
+> - * an address of 'type'.\r
+> + * an address of 'type', if 'add' is true.\r
+> *\r
+> * The first address encountered that *is* the user's address will be\r
+> * returned, (otherwise NULL is returned).\r
+> @@ -231,7 +232,8 @@ static const char *\r
+> add_recipients_for_string (GMimeMessage *message,\r
+> notmuch_config_t *config,\r
+> GMimeRecipientType type,\r
+> - const char *recipients)\r
+> + const char *recipients,\r
+> + notmuch_bool_t add)\r
+> {\r
+> InternetAddressList *list;\r
+> \r
+> @@ -242,7 +244,7 @@ add_recipients_for_string (GMimeMessage *message,\r
+> if (list == NULL)\r
+> return NULL;\r
+> \r
+> - return add_recipients_for_address_list (message, config, type, list);\r
+> + return add_recipients_for_address_list (message, config, type, list, add);\r
+> }\r
+> \r
+> /* Does the address in the Reply-To header of 'message' already appear\r
+> @@ -286,13 +288,19 @@ reply_to_header_is_redundant (notmuch_message_t *message)\r
+> \r
+> /* Augments the recipients of reply from the headers of message.\r
+> *\r
+> + * If 'reply_all' is true, use sender and all recipients, otherwise use the\r
+> + * first header that contains something other than the user's addresses\r
+\r
+Since there's no context here, perhaps you could elaborate on "first\r
+header"? Maybe ".. otherwise scan the reply-to, from, to, cc, and bcc\r
+headers for the first that contains something other than the user's\r
+addresses and add the recipients from this header (typically ..".\r
+\r
+> + * (typically this would be reply-to-sender, but also handles reply to user's\r
+> + * own message in a sensible way).\r
+> + *\r
+> * If any of the user's addresses were found in these headers, the first\r
+> * of these returned, otherwise NULL is returned.\r
+> */\r
+> static const char *\r
+> add_recipients_from_message (GMimeMessage *reply,\r
+> notmuch_config_t *config,\r
+> - notmuch_message_t *message)\r
+> + notmuch_message_t *message,\r
+> + notmuch_bool_t reply_all)\r
+> {\r
+> struct {\r
+> const char *header;\r
+> @@ -305,6 +313,7 @@ add_recipients_from_message (GMimeMessage *reply,\r
+> { "bcc", NULL, GMIME_RECIPIENT_TYPE_BCC }\r
+> };\r
+> const char *from_addr = NULL;\r
+> + notmuch_bool_t add_recipients = TRUE;\r
+> unsigned int i;\r
+> \r
+> /* Some mailing lists munge the Reply-To header despite it being A Bad\r
+> @@ -325,6 +334,7 @@ add_recipients_from_message (GMimeMessage *reply,\r
+> \r
+> for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {\r
+> const char *addr, *recipients;\r
+> + GMimeRecipientType recipient_type = reply_to_map[i].recipient_type;\r
+> \r
+> recipients = notmuch_message_get_header (message,\r
+> reply_to_map[i].header);\r
+> @@ -332,11 +342,29 @@ add_recipients_from_message (GMimeMessage *reply,\r
+> recipients = notmuch_message_get_header (message,\r
+> reply_to_map[i].fallback);\r
+> \r
+> - addr = add_recipients_for_string (reply, config,\r
+> - reply_to_map[i].recipient_type,\r
+> - recipients);\r
+> + addr = add_recipients_for_string (reply, config, recipient_type,\r
+> + recipients, add_recipients);\r
+> +\r
+> if (from_addr == NULL)\r
+> from_addr = addr;\r
+> +\r
+> + if (!reply_all) {\r
+> + /* Stop adding new recipients in reply-to-sender mode if we have\r
+> + * added some recipient(s) above.\r
+> + *\r
+> + * This also handles the case of user replying to his own message,\r
+> + * where reply-to/from is not a recipient. In this case there may be\r
+> + * more than one recipient even if not replying to all.\r
+> + */\r
+> + InternetAddressList *list;\r
+> + list = g_mime_message_get_recipients (reply, recipient_type);\r
+> + if (list && internet_address_list_length (list))\r
+> + add_recipients = FALSE;\r
+\r
+Is this different from just determining if add_recipients_for_string\r
+added anything? If not, maybe add_recipients_for_string (or\r
+scan_address_list) could simply return whether or not it added any\r
+recipients.\r
+\r
+> +\r
+> + /* Check if we've got a from address and all recipients we need. */\r
+> + if (!add_recipients && from_addr)\r
+> + break;\r
+> + }\r
+> }\r
+> \r
+> return from_addr;\r
+> @@ -480,7 +508,8 @@ static int\r
+> notmuch_reply_format_default(void *ctx,\r
+> notmuch_config_t *config,\r
+> notmuch_query_t *query,\r
+> - notmuch_show_params_t *params)\r
+> + notmuch_show_params_t *params,\r
+> + notmuch_bool_t reply_all)\r
+> {\r
+> GMimeMessage *reply;\r
+> notmuch_messages_t *messages;\r
+> @@ -509,7 +538,8 @@ notmuch_reply_format_default(void *ctx,\r
+> g_mime_message_set_subject (reply, subject);\r
+> }\r
+> \r
+> - from_addr = add_recipients_from_message (reply, config, message);\r
+> + from_addr = add_recipients_from_message (reply, config, message,\r
+> + reply_all);\r
+> \r
+> if (from_addr == NULL)\r
+> from_addr = guess_from_received_header (config, message);\r
+> @@ -558,7 +588,8 @@ static int\r
+> notmuch_reply_format_headers_only(void *ctx,\r
+> notmuch_config_t *config,\r
+> notmuch_query_t *query,\r
+> - unused (notmuch_show_params_t *params))\r
+> + unused (notmuch_show_params_t *params),\r
+> + notmuch_bool_t reply_all)\r
+> {\r
+> GMimeMessage *reply;\r
+> notmuch_messages_t *messages;\r
+> @@ -598,7 +629,7 @@ notmuch_reply_format_headers_only(void *ctx,\r
+> g_mime_object_set_header (GMIME_OBJECT (reply),\r
+> "References", references);\r
+> \r
+> - (void)add_recipients_from_message (reply, config, message);\r
+> + (void)add_recipients_from_message (reply, config, message, reply_all);\r
+> \r
+> reply_headers = g_mime_object_to_string (GMIME_OBJECT (reply));\r
+> printf ("%s", reply_headers);\r
+> @@ -625,9 +656,10 @@ notmuch_reply_command (void *ctx, int argc, char *argv[])\r
+> notmuch_query_t *query;\r
+> char *query_string;\r
+> int opt_index, ret = 0;\r
+> - int (*reply_format_func)(void *ctx, notmuch_config_t *config, notmuch_query_t *query, notmuch_show_params_t *params);\r
+> + int (*reply_format_func)(void *ctx, notmuch_config_t *config, notmuch_query_t *query, notmuch_show_params_t *params, notmuch_bool_t reply_all);\r
+> notmuch_show_params_t params = { .part = -1 };\r
+> int format = FORMAT_DEFAULT;\r
+> + int reply_all = TRUE;\r
+> notmuch_bool_t decrypt = FALSE;\r
+> \r
+> notmuch_opt_desc_t options[] = {\r
+> @@ -635,6 +667,10 @@ notmuch_reply_command (void *ctx, int argc, char *argv[])\r
+> (notmuch_keyword_t []){ { "default", FORMAT_DEFAULT },\r
+> { "headers-only", FORMAT_HEADERS_ONLY },\r
+> { 0, 0 } } },\r
+> + { NOTMUCH_OPT_KEYWORD, &reply_all, "reply-to", 'r',\r
+> + (notmuch_keyword_t []){ { "all", TRUE },\r
+> + { "sender", FALSE },\r
+> + { 0, 0 } } },\r
+> { NOTMUCH_OPT_BOOLEAN, &decrypt, "decrypt", 'd', 0 },\r
+> { 0, 0, 0, 0, 0 }\r
+> };\r
+> @@ -688,7 +724,7 @@ notmuch_reply_command (void *ctx, int argc, char *argv[])\r
+> return 1;\r
+> }\r
+> \r
+> - if (reply_format_func (ctx, config, query, ¶ms) != 0)\r
+> + if (reply_format_func (ctx, config, query, ¶ms, reply_all) != 0)\r
+> return 1;\r
+> \r
+> notmuch_query_destroy (query);\r