t1414: document some reflog-walk oddities

diff --git a/notes.c b/notes.c
index e881c10ee946dea3aeb957974c2a5aad6cb736ea..8f47c202c58752b6d9d56852ae9c315e2f144769 100644 (file)
--- a/notes.c
+++ b/notes.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 #include "notes.h"
 #include "blob.h"
 #include "tree.h"
@@ -1086,8 +1087,8 @@ void init_display_notes(struct display_notes_opt *opt)
        string_list_clear(&display_notes_refs, 0);
 }
 
-int add_note(struct notes_tree *t, const unsigned char *object_sha1,
-               const unsigned char *note_sha1, combine_notes_fn combine_notes)
+int add_note(struct notes_tree *t, const struct object_id *object_oid,
+               const struct object_id *note_oid, combine_notes_fn combine_notes)
 {
        struct leaf_node *l;
 
@@ -1098,8 +1099,8 @@ int add_note(struct notes_tree *t, const unsigned char *object_sha1,
        if (!combine_notes)
                combine_notes = t->combine_notes;
        l = (struct leaf_node *) xmalloc(sizeof(struct leaf_node));
-       hashcpy(l->key_oid.hash, object_sha1);
-       hashcpy(l->val_oid.hash, note_sha1);
+       oidcpy(&l->key_oid, object_oid);
+       oidcpy(&l->val_oid, note_oid);
        return note_tree_insert(t, t->root, 0, l, PTR_TYPE_NOTE, combine_notes);
 }
 
@@ -1119,16 +1120,16 @@ int remove_note(struct notes_tree *t, const unsigned char *object_sha1)
        return 0;
 }
 
-const unsigned char *get_note(struct notes_tree *t,
-               const unsigned char *object_sha1)
+const struct object_id *get_note(struct notes_tree *t,
+               const struct object_id *oid)
 {
        struct leaf_node *found;
 
        if (!t)
                t = &default_notes_tree;
        assert(t->initialized);
-       found = note_tree_find(t, t->root, 0, object_sha1);
-       return found ? found->val_oid.hash : NULL;
+       found = note_tree_find(t, t->root, 0, oid->hash);
+       return found ? &found->val_oid : NULL;
 }
 
 int for_each_note(struct notes_tree *t, int flags, each_note_fn fn,
@@ -1215,11 +1216,11 @@ void free_notes(struct notes_tree *t)
  * (raw != 0) gives the %N userformat; otherwise, the note message is given
  * for human consumption.
  */
-static void format_note(struct notes_tree *t, const unsigned char *object_sha1,
+static void format_note(struct notes_tree *t, const struct object_id *object_oid,
                        struct strbuf *sb, const char *output_encoding, int raw)
 {
        static const char utf8[] = "utf-8";
-       const unsigned char *sha1;
+       const struct object_id *oid;
        char *msg, *msg_p;
        unsigned long linelen, msglen;
        enum object_type type;
@@ -1229,11 +1230,11 @@ static void format_note(struct notes_tree *t, const unsigned char *object_sha1,
        if (!t->initialized)
                init_notes(t, NULL, NULL, 0);
 
-       sha1 = get_note(t, object_sha1);
-       if (!sha1)
+       oid = get_note(t, object_oid);
+       if (!oid)
                return;
 
-       if (!(msg = read_sha1_file(sha1, &type, &msglen)) || type != OBJ_BLOB) {
+       if (!(msg = read_sha1_file(oid->hash, &type, &msglen)) || type != OBJ_BLOB) {
                free(msg);
                return;
        }
@@ -1277,22 +1278,22 @@ static void format_note(struct notes_tree *t, const unsigned char *object_sha1,
        free(msg);
 }
 
-void format_display_notes(const unsigned char *object_sha1,
+void format_display_notes(const struct object_id *object_oid,
                          struct strbuf *sb, const char *output_encoding, int raw)
 {
        int i;
        assert(display_notes_trees);
        for (i = 0; display_notes_trees[i]; i++)
-               format_note(display_notes_trees[i], object_sha1, sb,
+               format_note(display_notes_trees[i], object_oid, sb,
                            output_encoding, raw);
 }
 
 int copy_note(struct notes_tree *t,
-             const unsigned char *from_obj, const unsigned char *to_obj,
+             const struct object_id *from_obj, const struct object_id *to_obj,
              int force, combine_notes_fn combine_notes)
 {
-       const unsigned char *note = get_note(t, from_obj);
-       const unsigned char *existing_note = get_note(t, to_obj);
+       const struct object_id *note = get_note(t, from_obj);
+       const struct object_id *existing_note = get_note(t, to_obj);
 
        if (!force && existing_note)
                return 1;
@@ -1300,7 +1301,7 @@ int copy_note(struct notes_tree *t,
        if (note)
                return add_note(t, to_obj, note, combine_notes);
        else if (existing_note)
-               return add_note(t, to_obj, null_sha1, combine_notes);
+               return add_note(t, to_obj, &null_oid, combine_notes);
 
        return 0;
 }