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List: git
Subject: [PATCH 1/2 (resend)] Object model additions for read-tree
From: Daniel Barkalow <barkalow () iabervon ! org>
Date: 2005-08-31 16:57:00
Message-ID: Pine.LNX.4.63.0508311256220.23242 () iabervon ! org
[Download RAW message or body]
Adds object_list_append() and a function to get the struct tree from an ent.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
---
object.c | 11 +++++++++++
object.h | 3 +++
tree.c | 19 +++++++++++++++++++
tree.h | 3 +++
4 files changed, 36 insertions(+), 0 deletions(-)
49d33c385aa69d17c991300f73e77c6718a2b4a6
diff --git a/object.c b/object.c
--- a/object.c
+++ b/object.c
@@ -184,6 +184,17 @@ struct object_list *object_list_insert(s
return new_list;
}
+void object_list_append(struct object *item,
+ struct object_list **list_p)
+{
+ while (*list_p) {
+ list_p = &((*list_p)->next);
+ }
+ *list_p = xmalloc(sizeof(struct object_list));
+ (*list_p)->next = NULL;
+ (*list_p)->item = item;
+}
+
unsigned object_list_length(struct object_list *list)
{
unsigned ret = 0;
diff --git a/object.h b/object.h
--- a/object.h
+++ b/object.h
@@ -41,6 +41,9 @@ void mark_reachable(struct object *obj,
struct object_list *object_list_insert(struct object *item,
struct object_list **list_p);
+void object_list_append(struct object *item,
+ struct object_list **list_p);
+
unsigned object_list_length(struct object_list *list);
int object_list_contains(struct object_list *list, struct object *obj);
diff --git a/tree.c b/tree.c
--- a/tree.c
+++ b/tree.c
@@ -1,5 +1,7 @@
#include "tree.h"
#include "blob.h"
+#include "commit.h"
+#include "tag.h"
#include "cache.h"
#include <stdlib.h>
@@ -212,3 +214,20 @@ int parse_tree(struct tree *item)
free(buffer);
return ret;
}
+
+struct tree *parse_tree_indirect(const unsigned char *sha1)
+{
+ struct object *obj = parse_object(sha1);
+ do {
+ if (!obj)
+ return NULL;
+ if (obj->type == tree_type)
+ return (struct tree *) obj;
+ else if (obj->type == commit_type)
+ return ((struct commit *) obj)->tree;
+ else if (obj->type == tag_type)
+ obj = ((struct tag *) obj)->tagged;
+ else
+ return NULL;
+ } while (1);
+}
diff --git a/tree.h b/tree.h
--- a/tree.h
+++ b/tree.h
@@ -32,4 +32,7 @@ int parse_tree_buffer(struct tree *item,
int parse_tree(struct tree *tree);
+/* Parses and returns the tree in the given ent, chasing tags and commits. */
+struct tree *parse_tree_indirect(const unsigned char *sha1);
+
#endif /* TREE_H */
-
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