[RFC/PATCHv7 18/22] Notes API: get_note(): Return the note annotating the given object

[Johan Herland <johan@herland.net>]

Created by a simple cleanup and rename of lookup_notes().

Signed-off-by: Johan Herland <johan@herland.net>
---
 notes.c |   15 ++++++++-------
 notes.h |    3 +++
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/notes.c b/notes.c
index 49a3e86..2196a5f 100644
--- a/notes.c
+++ b/notes.c
@@ -377,12 +377,13 @@ void add_note(const unsigned char *object_sha1, const unsigned char *note_sha1)
 	note_tree_insert(&root_node, 0, l, PTR_TYPE_NOTE);
 }
 
-static unsigned char *lookup_notes(const unsigned char *object_sha1)
+const unsigned char *get_note(const unsigned char *object_sha1)
 {
-	struct leaf_node *found = note_tree_find(&root_node, 0, object_sha1);
-	if (found)
-		return found->val_sha1;
-	return NULL;
+	struct leaf_node *found;
+
+	assert(initialized);
+	found = note_tree_find(&root_node, 0, object_sha1);
+	return found ? found->val_sha1 : NULL;
 }
 
 void free_notes(void)
@@ -396,7 +397,7 @@ void format_note(const unsigned char *object_sha1, struct strbuf *sb,
 		const char *output_encoding, int flags)
 {
 	static const char utf8[] = "utf-8";
-	unsigned char *sha1;
+	const unsigned char *sha1;
 	char *msg, *msg_p;
 	unsigned long linelen, msglen;
 	enum object_type type;
@@ -404,7 +405,7 @@ void format_note(const unsigned char *object_sha1, struct strbuf *sb,
 	if (!initialized)
 		init_notes(NULL, 0);
 
-	sha1 = lookup_notes(object_sha1);
+	sha1 = get_note(object_sha1);
 	if (!sha1)
 		return;
 
diff --git a/notes.h b/notes.h
index 5f22852..21a8930 100644
--- a/notes.h
+++ b/notes.h
@@ -25,6 +25,9 @@ void init_notes(const char *notes_ref, int flags);
 void add_note(const unsigned char *object_sha1,
 		const unsigned char *note_sha1);
 
+/* Get the note object SHA1 containing the note data for the given object */
+const unsigned char *get_note(const unsigned char *object_sha1);
+
 /* Free (and de-initialize) the internal notes tree structure */
 void free_notes(void);
 
-- 
1.6.4.304.g1365c.dirty