[PATCH v2 11/16] trailer: add new_trailer_item() function

[Christian Couder <chriscool@tuxfamily.org>]

This is a small refactoring to prepare for the next steps.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 trailer.c | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/trailer.c b/trailer.c
index 9026337..43a3735 100644
--- a/trailer.c
+++ b/trailer.c
@@ -400,11 +400,27 @@ static void parse_trailer(struct strbuf *tok, struct strbuf *val, const char *tr
 	}
 }
 
+static struct trailer_item *new_trailer_item(struct trailer_item *conf_item,
+					     const char* tok, const char* val)
+{
+	struct trailer_item *new = xcalloc(sizeof(struct trailer_item), 1);
+	new->value = val;
+
+	if (conf_item) {
+		new->conf = conf_item->conf;
+		new->token = xstrdup(conf_item->conf->key);
+	} else {
+		new->conf = xcalloc(sizeof(struct conf_info), 1);
+		new->token = tok;
+	}
+
+	return new;
+}
+
 static struct trailer_item *create_trailer_item(const char *string)
 {
 	struct strbuf tok = STRBUF_INIT;
 	struct strbuf val = STRBUF_INIT;
-	struct trailer_item *new;
 
 	parse_trailer(&tok, &val, string);
 
@@ -416,21 +432,12 @@ static struct trailer_item *create_trailer_item(const char *string)
 	{
 		if (!strncasecmp(tok.buf, item->conf->key, tok_alnum_len) ||
 		    !strncasecmp(tok.buf, item->conf->name, tok_alnum_len)) {
-			new = xcalloc(sizeof(struct trailer_item), 1);
-			new->conf = item->conf;
-			new->token = xstrdup(item->conf->key);
-			new->value = strbuf_detach(&val, NULL);
 			strbuf_release(&tok);
-			return new;
+			return new_trailer_item(item, NULL, strbuf_detach(&val, NULL));
 		}
 	}
 
-	new = xcalloc(sizeof(struct trailer_item), 1);
-	new->conf = xcalloc(sizeof(struct conf_info), 1);
-	new->token = strbuf_detach(&tok, NULL);
-	new->value = strbuf_detach(&val, NULL);
-
-	return new;
+	return new_trailer_item(NULL, strbuf_detach(&tok, NULL), strbuf_detach(&val, NULL));;
 }
 
 static void add_trailer_item(struct trailer_item **first,
-- 
1.8.5.2.201.gacc5987