[RFC PATCH 2/3] cli: add reply.honor_followup_to configuration option

[Jani Nikula <jani@nikula.org>]

The reply.honor_followup_to configuration option determines whether
notmuch reply takes into account the Mail-Followup-To: header in
incoming messages.
---
 notmuch-client.h |    7 +++++++
 notmuch-config.c |   43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)

diff --git a/notmuch-client.h b/notmuch-client.h
index 5f28836..54df811 100644
--- a/notmuch-client.h
+++ b/notmuch-client.h
@@ -304,6 +304,13 @@ notmuch_config_set_new_ignore (notmuch_config_t *config,
 			       size_t length);
 
 notmuch_bool_t
+notmuch_config_get_reply_honor_followup_to (notmuch_config_t *config);
+
+void
+notmuch_config_set_reply_honor_followup_to (notmuch_config_t *config,
+					    notmuch_bool_t honor_followup_to);
+
+notmuch_bool_t
 notmuch_config_get_maildir_synchronize_flags (notmuch_config_t *config);
 
 void
diff --git a/notmuch-config.c b/notmuch-config.c
index 45b4c0e..69c4bee 100644
--- a/notmuch-config.c
+++ b/notmuch-config.c
@@ -53,6 +53,17 @@ static const char new_config_comment[] =
     "\t	names will be ignored, independent of its depth/location\n"
     "\t	in the mail store.\n";
 
+static const char reply_config_comment[] =
+    " Configuration for \"notmuch reply\"\n"
+    "\n"
+    " The following option is supported here:\n"
+    "\n"
+    "\thonor_followup_to	Valid values are true and false.\n"
+    "\n"
+    "\tIf true, \"notmuch reply\" will honor the \"Mail-Followup-To:\""
+    "\theader in incoming messages. (This will not generate the headers"
+    "\tto outgoing messages.)\n";
+
 static const char user_config_comment[] =
     " User configuration\n"
     "\n"
@@ -114,6 +125,7 @@ struct _notmuch_config {
     size_t new_tags_length;
     const char **new_ignore;
     size_t new_ignore_length;
+    notmuch_bool_t reply_honor_followup_to;
     notmuch_bool_t maildir_synchronize_flags;
     const char **search_exclude_tags;
     size_t search_exclude_tags_length;
@@ -240,6 +252,7 @@ notmuch_config_open (void *ctx,
     char *notmuch_config_env = NULL;
     int file_had_database_group;
     int file_had_new_group;
+    int file_had_reply_group;
     int file_had_user_group;
     int file_had_maildir_group;
     int file_had_search_group;
@@ -275,6 +288,7 @@ notmuch_config_open (void *ctx,
     config->new_tags_length = 0;
     config->new_ignore = NULL;
     config->new_ignore_length = 0;
+    config->reply_honor_followup_to = FALSE;
     config->maildir_synchronize_flags = TRUE;
     config->search_exclude_tags = NULL;
     config->search_exclude_tags_length = 0;
@@ -319,6 +333,7 @@ notmuch_config_open (void *ctx,
     file_had_database_group = g_key_file_has_group (config->key_file,
 						    "database");
     file_had_new_group = g_key_file_has_group (config->key_file, "new");
+    file_had_reply_group = g_key_file_has_group (config->key_file, "reply");
     file_had_user_group = g_key_file_has_group (config->key_file, "user");
     file_had_maildir_group = g_key_file_has_group (config->key_file, "maildir");
     file_had_search_group = g_key_file_has_group (config->key_file, "search");
@@ -386,6 +401,15 @@ notmuch_config_open (void *ctx,
     }
 
     error = NULL;
+    config->reply_honor_followup_to =
+	g_key_file_get_boolean (config->key_file,
+				"reply", "honor_followup_to", &error);
+    if (error) {
+	notmuch_config_set_reply_honor_followup_to (config, FALSE);
+	g_error_free (error);
+    }
+
+    error = NULL;
     config->maildir_synchronize_flags =
 	g_key_file_get_boolean (config->key_file,
 				"maildir", "synchronize_flags", &error);
@@ -409,6 +433,10 @@ notmuch_config_open (void *ctx,
 	g_key_file_set_comment (config->key_file, "new", NULL,
 				new_config_comment, NULL);
 
+    if (! file_had_reply_group)
+	g_key_file_set_comment (config->key_file, "reply", NULL,
+				reply_config_comment, NULL);
+
     if (! file_had_user_group)
 	g_key_file_set_comment (config->key_file, "user", NULL,
 				user_config_comment, NULL);
@@ -868,6 +896,21 @@ notmuch_config_command (void *ctx, int argc, char *argv[])
 }
 
 notmuch_bool_t
+notmuch_config_get_reply_honor_followup_to (notmuch_config_t *config)
+{
+    return config->reply_honor_followup_to;
+}
+
+void
+notmuch_config_set_reply_honor_followup_to (notmuch_config_t *config,
+					    notmuch_bool_t honor_followup_to)
+{
+    g_key_file_set_boolean (config->key_file,
+			    "reply", "honor_followup_to", honor_followup_to);
+    config->reply_honor_followup_to = honor_followup_to;
+}
+
+notmuch_bool_t
 notmuch_config_get_maildir_synchronize_flags (notmuch_config_t *config)
 {
     return config->maildir_synchronize_flags;
-- 
1.7.10.4