lib: abstract content type indexing

Make the follow-up change of indexing signature content types
easier. No functional changes.

diff --git a/lib/index.cc b/lib/index.cc
index 2b98b588d38d4532173a503cc652aa5e8d3c3de1..64bc92a5b56d1091fc62db4062f2ebce076e5924 100644 (file)
--- a/lib/index.cc
+++ b/lib/index.cc
@@ -351,6 +351,19 @@ _index_address_list (notmuch_message_t *message,
     }
 }
 
+static void
+_index_content_type (notmuch_message_t *message, GMimeObject *part)
+{
+    GMimeContentType *content_type = g_mime_object_get_content_type (part);
+    if (content_type) {
+       char *mime_string = g_mime_content_type_to_string (content_type);
+       if (mime_string) {
+           _notmuch_message_gen_terms (message, "mimetype", mime_string);
+           g_free (mime_string);
+       }
+    }
+}
+
 /* Callback to generate terms for each mime part of a message. */
 static void
 _index_mime_part (notmuch_message_t *message,
@@ -361,6 +374,7 @@ _index_mime_part (notmuch_message_t *message,
     GMimeDataWrapper *wrapper;
     GByteArray *byte_array;
     GMimeContentDisposition *disposition;
+    GMimeContentType *content_type;
     char *body;
     const char *charset;
 
@@ -370,15 +384,7 @@ _index_mime_part (notmuch_message_t *message,
        return;
     }
 
-    GMimeContentType *content_type = g_mime_object_get_content_type(part);
-    if (content_type) {
-       char *mime_string = g_mime_content_type_to_string(content_type);
-       if (mime_string)
-       {
-           _notmuch_message_gen_terms (message, "mimetype", mime_string);
-           g_free(mime_string);
-       }
-    }
+    _index_content_type (message, part);
 
     if (GMIME_IS_MULTIPART (part)) {
        GMimeMultipart *multipart = GMIME_MULTIPART (part);
@@ -447,6 +453,8 @@ _index_mime_part (notmuch_message_t *message,
     g_mime_stream_mem_set_owner (GMIME_STREAM_MEM (stream), FALSE);
 
     filter = g_mime_stream_filter_new (stream);
+
+    content_type = g_mime_object_get_content_type (part);
     discard_non_term_filter = notmuch_filter_discard_non_term_new (content_type);
 
     g_mime_stream_filter_add (GMIME_STREAM_FILTER (filter),