return NULL;
}
-/*
- * To insert a leaf_node:
- * Search to the tree location appropriate for the given leaf_node's key:
- * - If location is unused (NULL), store the tweaked pointer directly there
- * - If location holds a note entry that matches the note-to-be-inserted, then
- * combine the two notes (by calling the given combine_notes function).
- * - If location holds a note entry that matches the subtree-to-be-inserted,
- * then unpack the subtree-to-be-inserted into the location.
- * - If location holds a matching subtree entry, unpack the subtree at that
- * location, and restart the insert operation from that level.
- * - Else, create a new int_node, holding both the node-at-location and the
- * node-to-be-inserted, and store the new int_node into the location.
- */
-static void note_tree_insert(struct notes_tree *t, struct int_node *tree,
- unsigned char n, struct leaf_node *entry, unsigned char type,
- combine_notes_fn combine_notes)
-{
- struct int_node *new_node;
- struct leaf_node *l;
- void **p = note_tree_search(t, &tree, &n, entry->key_sha1);
-
- assert(GET_PTR_TYPE(entry) == 0); /* no type bits set */
- l = (struct leaf_node *) CLR_PTR_TYPE(*p);
- switch (GET_PTR_TYPE(*p)) {
- case PTR_TYPE_NULL:
- assert(!*p);
- *p = SET_PTR_TYPE(entry, type);
- return;
- case PTR_TYPE_NOTE:
- switch (type) {
- case PTR_TYPE_NOTE:
- if (!hashcmp(l->key_sha1, entry->key_sha1)) {
- /* skip concatenation if l == entry */
- if (!hashcmp(l->val_sha1, entry->val_sha1))
- return;
-
- if (combine_notes(l->val_sha1, entry->val_sha1))
- die("failed to combine notes %s and %s"
- " for object %s",
- sha1_to_hex(l->val_sha1),
- sha1_to_hex(entry->val_sha1),
- sha1_to_hex(l->key_sha1));
- free(entry);
- return;
- }
- break;
- case PTR_TYPE_SUBTREE:
- if (!SUBTREE_SHA1_PREFIXCMP(l->key_sha1,
- entry->key_sha1)) {
- /* unpack 'entry' */
- load_subtree(t, entry, tree, n);
- free(entry);
- return;
- }
- break;
- }
- break;
- case PTR_TYPE_SUBTREE:
- if (!SUBTREE_SHA1_PREFIXCMP(entry->key_sha1, l->key_sha1)) {
- /* unpack 'l' and restart insert */
- *p = NULL;
- load_subtree(t, l, tree, n);
- free(l);
- note_tree_insert(t, tree, n, entry, type,
- combine_notes);
- return;
- }
- break;
- }
-
- /* non-matching leaf_node */
- assert(GET_PTR_TYPE(*p) == PTR_TYPE_NOTE ||
- GET_PTR_TYPE(*p) == PTR_TYPE_SUBTREE);
- new_node = (struct int_node *) xcalloc(sizeof(struct int_node), 1);
- note_tree_insert(t, new_node, n + 1, l, GET_PTR_TYPE(*p),
- combine_notes);
- *p = SET_PTR_TYPE(new_node, PTR_TYPE_INTERNAL);
- note_tree_insert(t, new_node, n + 1, entry, type, combine_notes);
-}
-
/*
* How to consolidate an int_node:
* If there are > 1 non-NULL entries, give up and return non-zero.
i--;
}
+/*
+ * To insert a leaf_node:
+ * Search to the tree location appropriate for the given leaf_node's key:
+ * - If location is unused (NULL), store the tweaked pointer directly there
+ * - If location holds a note entry that matches the note-to-be-inserted, then
+ * combine the two notes (by calling the given combine_notes function).
+ * - If location holds a note entry that matches the subtree-to-be-inserted,
+ * then unpack the subtree-to-be-inserted into the location.
+ * - If location holds a matching subtree entry, unpack the subtree at that
+ * location, and restart the insert operation from that level.
+ * - Else, create a new int_node, holding both the node-at-location and the
+ * node-to-be-inserted, and store the new int_node into the location.
+ */
+static int note_tree_insert(struct notes_tree *t, struct int_node *tree,
+ unsigned char n, struct leaf_node *entry, unsigned char type,
+ combine_notes_fn combine_notes)
+{
+ struct int_node *new_node;
+ struct leaf_node *l;
+ void **p = note_tree_search(t, &tree, &n, entry->key_sha1);
+ int ret = 0;
+
+ assert(GET_PTR_TYPE(entry) == 0); /* no type bits set */
+ l = (struct leaf_node *) CLR_PTR_TYPE(*p);
+ switch (GET_PTR_TYPE(*p)) {
+ case PTR_TYPE_NULL:
+ assert(!*p);
+ if (is_null_sha1(entry->val_sha1))
+ free(entry);
+ else
+ *p = SET_PTR_TYPE(entry, type);
+ return 0;
+ case PTR_TYPE_NOTE:
+ switch (type) {
+ case PTR_TYPE_NOTE:
+ if (!hashcmp(l->key_sha1, entry->key_sha1)) {
+ /* skip concatenation if l == entry */
+ if (!hashcmp(l->val_sha1, entry->val_sha1))
+ return 0;
+
+ ret = combine_notes(l->val_sha1,
+ entry->val_sha1);
+ if (!ret && is_null_sha1(l->val_sha1))
+ note_tree_remove(t, tree, n, entry);
+ free(entry);
+ return ret;
+ }
+ break;
+ case PTR_TYPE_SUBTREE:
+ if (!SUBTREE_SHA1_PREFIXCMP(l->key_sha1,
+ entry->key_sha1)) {
+ /* unpack 'entry' */
+ load_subtree(t, entry, tree, n);
+ free(entry);
+ return 0;
+ }
+ break;
+ }
+ break;
+ case PTR_TYPE_SUBTREE:
+ if (!SUBTREE_SHA1_PREFIXCMP(entry->key_sha1, l->key_sha1)) {
+ /* unpack 'l' and restart insert */
+ *p = NULL;
+ load_subtree(t, l, tree, n);
+ free(l);
+ return note_tree_insert(t, tree, n, entry, type,
+ combine_notes);
+ }
+ break;
+ }
+
+ /* non-matching leaf_node */
+ assert(GET_PTR_TYPE(*p) == PTR_TYPE_NOTE ||
+ GET_PTR_TYPE(*p) == PTR_TYPE_SUBTREE);
+ if (is_null_sha1(entry->val_sha1)) { /* skip insertion of empty note */
+ free(entry);
+ return 0;
+ }
+ new_node = (struct int_node *) xcalloc(sizeof(struct int_node), 1);
+ ret = note_tree_insert(t, new_node, n + 1, l, GET_PTR_TYPE(*p),
+ combine_notes);
+ if (ret)
+ return ret;
+ *p = SET_PTR_TYPE(new_node, PTR_TYPE_INTERNAL);
+ return note_tree_insert(t, new_node, n + 1, entry, type, combine_notes);
+}
+
/* Free the entire notes data contained in the given tree */
static void note_tree_free(struct int_node *tree)
{
l->key_sha1[19] = (unsigned char) len;
type = PTR_TYPE_SUBTREE;
}
- note_tree_insert(t, node, n, l, type,
- combine_notes_concatenate);
+ if (note_tree_insert(t, node, n, l, type,
+ combine_notes_concatenate))
+ die("Failed to load %s %s into notes tree "
+ "from %s",
+ type == PTR_TYPE_NOTE ? "note" : "subtree",
+ sha1_to_hex(l->key_sha1), t->ref);
}
continue;
return 0;
}
- /* we will separate the notes by a newline anyway */
+ /* we will separate the notes by two newlines anyway */
if (cur_msg[cur_len - 1] == '\n')
cur_len--;
/* concatenate cur_msg and new_msg into buf */
- buf_len = cur_len + 1 + new_len;
+ buf_len = cur_len + 2 + new_len;
buf = (char *) xmalloc(buf_len);
memcpy(buf, cur_msg, cur_len);
buf[cur_len] = '\n';
- memcpy(buf + cur_len + 1, new_msg, new_len);
+ buf[cur_len + 1] = '\n';
+ memcpy(buf + cur_len + 2, new_msg, new_len);
free(cur_msg);
free(new_msg);
{
struct string_list *refs = cb;
if (!unsorted_string_list_has_string(refs, path))
- string_list_append(path, refs);
+ string_list_append(refs, path);
return 0;
}
if (get_sha1(glob, sha1))
warning("notes ref %s is invalid", glob);
if (!unsorted_string_list_has_string(list, glob))
- string_list_append(glob, list);
+ string_list_append(list, glob);
}
}
return 0;
}
-static const char *default_notes_ref(void)
+const char *default_notes_ref(void)
{
const char *notes_ref = NULL;
if (!notes_ref)
return;
if (get_tree_entry(object_sha1, "", sha1, &mode))
die("Failed to read notes tree referenced by %s (%s)",
- notes_ref, object_sha1);
+ notes_ref, sha1_to_hex(object_sha1));
hashclr(root_tree.key_sha1);
hashcpy(root_tree.val_sha1, sha1);
trees = xmalloc((refs->nr+1) * sizeof(struct notes_tree *));
cb_data.counter = 0;
cb_data.trees = trees;
- for_each_string_list(load_one_display_note_ref, refs, &cb_data);
+ for_each_string_list(refs, load_one_display_note_ref, &cb_data);
trees[cb_data.counter] = NULL;
return trees;
}
assert(!display_notes_trees);
if (!opt || !opt->suppress_default_notes) {
- string_list_append(default_notes_ref(), &display_notes_refs);
+ string_list_append(&display_notes_refs, default_notes_ref());
display_ref_env = getenv(GIT_NOTES_DISPLAY_REF_ENVIRONMENT);
if (display_ref_env) {
string_list_add_refs_from_colon_sep(&display_notes_refs,
git_config(notes_display_config, &load_config_refs);
if (opt && opt->extra_notes_refs)
- for_each_string_list(string_list_add_refs_from_list,
- opt->extra_notes_refs,
+ for_each_string_list(opt->extra_notes_refs,
+ string_list_add_refs_from_list,
&display_notes_refs);
display_notes_trees = load_notes_trees(&display_notes_refs);
string_list_clear(&display_notes_refs, 0);
}
-void add_note(struct notes_tree *t, const unsigned char *object_sha1,
+int add_note(struct notes_tree *t, const unsigned char *object_sha1,
const unsigned char *note_sha1, combine_notes_fn combine_notes)
{
struct leaf_node *l;
l = (struct leaf_node *) xmalloc(sizeof(struct leaf_node));
hashcpy(l->key_sha1, object_sha1);
hashcpy(l->val_sha1, note_sha1);
- note_tree_insert(t, t->root, 0, l, PTR_TYPE_NOTE, combine_notes);
+ return note_tree_insert(t, t->root, 0, l, PTR_TYPE_NOTE, combine_notes);
}
void remove_note(struct notes_tree *t, const unsigned char *object_sha1)
int copy_note(struct notes_tree *t,
const unsigned char *from_obj, const unsigned char *to_obj,
- int force, combine_notes_fn combine_fn)
+ 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);
return 1;
if (note)
- add_note(t, to_obj, note, combine_fn);
+ return add_note(t, to_obj, note, combine_notes);
else if (existing_note)
- add_note(t, to_obj, null_sha1, combine_fn);
+ return add_note(t, to_obj, null_sha1, combine_notes);
return 0;
}