Change the object creation/lookup API

The methods previously known as

	git_repository_lookup
	git_repository_newobject
	git_repository_lookup_ref

are now part of their respective namespaces:

	git_object_lookup
	git_object_new
	git_reference_lookup

This makes the API more consistent with the new references API.

Signed-off-by: Vicent Marti <tanoku@gmail.com>

13 files changed, 195 insertions, 198 deletions

diff --git a/src/commit.c b/src/commit.c
index 49e23545e..44e1e94e2 100644
--- a/src/commit.c
+++ b/src/commit.c
@@ -121,7 +121,7 @@ int commit_parse_buffer(git_commit *commit, void *data, size_t len, unsigned int
 	if ((error = git__parse_oid(&oid, &buffer, buffer_end, "tree ")) < GIT_SUCCESS)
 		return error;
 
-	if ((error = git_repository_lookup((git_object **)&commit->tree, commit->object.repo, &oid, GIT_OBJ_TREE)) < GIT_SUCCESS)
+	if ((error = git_object_lookup((git_object **)&commit->tree, commit->object.repo, &oid, GIT_OBJ_TREE)) < GIT_SUCCESS)
 		return error;
 
 	/*
@@ -131,7 +131,7 @@ int commit_parse_buffer(git_commit *commit, void *data, size_t len, unsigned int
 	while (git__parse_oid(&oid, &buffer, buffer_end, "parent ") == GIT_SUCCESS) {
 		git_commit *parent;
 
-		if ((error = git_repository_lookup((git_object **)&parent, commit->object.repo, &oid, GIT_OBJ_COMMIT)) < GIT_SUCCESS)
+		if ((error = git_object_lookup((git_object **)&parent, commit->object.repo, &oid, GIT_OBJ_COMMIT)) < GIT_SUCCESS)
 			return error;
 
 		if (git_vector_insert(&commit->parents, parent) < GIT_SUCCESS)
diff --git a/src/git2/blob.h b/src/git2/blob.h
index b34b5bfe9..b527d61f4 100644
--- a/src/git2/blob.h
+++ b/src/git2/blob.h
@@ -28,7 +28,7 @@
 #include "common.h"
 #include "types.h"
 #include "oid.h"
-#include "repository.h"
+#include "object.h"
 
 /**
  * @file git2/blob.h
@@ -51,7 +51,7 @@ GIT_BEGIN_DECL
  */
 GIT_INLINE(int) git_blob_lookup(git_blob **blob, git_repository *repo, const git_oid *id)
 {
-	return git_repository_lookup((git_object **)blob, repo, id, GIT_OBJ_BLOB);
+	return git_object_lookup((git_object **)blob, repo, id, GIT_OBJ_BLOB);
 }
 
 /**
@@ -67,7 +67,7 @@ GIT_INLINE(int) git_blob_lookup(git_blob **blob, git_repository *repo, const git
  */
 GIT_INLINE(int) git_blob_new(git_blob **blob, git_repository *repo)
 {
-	return git_repository_newobject((git_object **)blob, repo, GIT_OBJ_BLOB);
+	return git_object_new((git_object **)blob, repo, GIT_OBJ_BLOB);
 }
 
 /**
diff --git a/src/git2/commit.h b/src/git2/commit.h
index 4d0b2ab99..21836dbbd 100644
--- a/src/git2/commit.h
+++ b/src/git2/commit.h
@@ -28,7 +28,7 @@
 #include "common.h"
 #include "types.h"
 #include "oid.h"
-#include "repository.h"
+#include "object.h"
 
 /**
  * @file git2/commit.h
@@ -52,7 +52,7 @@ GIT_BEGIN_DECL
  */
 GIT_INLINE(int) git_commit_lookup(git_commit **commit, git_repository *repo, const git_oid *id)
 {
-	return git_repository_lookup((git_object **)commit, repo, id, GIT_OBJ_COMMIT);
+	return git_object_lookup((git_object **)commit, repo, id, GIT_OBJ_COMMIT);
 }
 
 /**
@@ -68,7 +68,7 @@ GIT_INLINE(int) git_commit_lookup(git_commit **commit, git_repository *repo, con
  */
 GIT_INLINE(int) git_commit_new(git_commit **commit, git_repository *repo)
 {
-	return git_repository_newobject((git_object **)commit, repo, GIT_OBJ_COMMIT);
+	return git_object_new((git_object **)commit, repo, GIT_OBJ_COMMIT);
 }
 
 /**
diff --git a/src/git2/object.h b/src/git2/object.h
index 128c9faf5..80477d44a 100644
--- a/src/git2/object.h
+++ b/src/git2/object.h
@@ -39,6 +39,49 @@
 GIT_BEGIN_DECL
 
 /**
+ * Lookup a reference to one of the objects in a repostory.
+ *
+ * The generated reference is owned by the repository and
+ * should not be freed by the user.
+ *
+ * The 'type' parameter must match the type of the object
+ * in the odb; the method will fail otherwise.
+ * The special value 'GIT_OBJ_ANY' may be passed to let
+ * the method guess the object's type.
+ *
+ * @param object pointer to the looked-up object
+ * @param repo the repository to look up the object
+ * @param id the unique identifier for the object
+ * @param type the type of the object
+ * @return a reference to the object
+ */
+GIT_EXTERN(int) git_object_lookup(git_object **object, git_repository *repo, const git_oid *id, git_otype type);
+
+/**
+ * Create a new in-memory repository object with
+ * the given type.
+ *
+ * The object's attributes can be filled in using the
+ * corresponding setter methods.
+ *
+ * The object will be written back to given git_repository
+ * when the git_object_write() function is called; objects
+ * cannot be written to disk until all their main
+ * attributes have been properly filled.
+ *
+ * Objects are instantiated with no SHA1 id; their id
+ * will be automatically generated when writing to the
+ * repository.
+ *
+ * @param object pointer to the new object
+ * @parem repo Repository where the object belongs
+ * @param type Type of the object to be created
+ * @return the new object
+ */
+GIT_EXTERN(int) git_object_new(git_object **object, git_repository *repo, git_otype type);
+
+
+/**
  * Write back an object to disk.
  *
  * The object will be written to its corresponding
diff --git a/src/git2/refs.h b/src/git2/refs.h
index 752d80862..1702d7ee1 100644
--- a/src/git2/refs.h
+++ b/src/git2/refs.h
@@ -39,6 +39,19 @@
 GIT_BEGIN_DECL
 
 /**
+ * Lookup a reference by its name in a repository.
+ *
+ * The generated reference is owned by the repository and
+ * should not be freed by the user.
+ *
+ * @param reference_out pointer to the looked-up reference
+ * @param repo the repository to look up the reference
+ * @param name the long name for the reference (e.g. HEAD, ref/heads/master, refs/tags/v0.1.0, ...)
+ * @return 0 on success; error code otherwise
+ */
+GIT_EXTERN(int) git_reference_lookup(git_reference **reference_out, git_repository *repo, const char *name);
+
+/**
  * Create a new symbolic reference.
  *
  * The reference will be created in the repository and written
diff --git a/src/git2/repository.h b/src/git2/repository.h
index ec74305ae..dbb9dddef 100644
--- a/src/git2/repository.h
+++ b/src/git2/repository.h
@@ -132,26 +132,6 @@ GIT_EXTERN(int) git_repository_open3(git_repository **repository,
 		const char *git_index_file,
 		const char *git_work_tree);
 
-
-/**
- * Lookup a reference to one of the objects in the repostory.
- *
- * The generated reference is owned by the repository and
- * should not be freed by the user.
- *
- * The 'type' parameter must match the type of the object
- * in the odb; the method will fail otherwise.
- * The special value 'GIT_OBJ_ANY' may be passed to let
- * the method guess the object's type.
- *
- * @param object pointer to the looked-up object
- * @param repo the repository to look up the object
- * @param id the unique identifier for the object
- * @param type the type of the object
- * @return a reference to the object
- */
-GIT_EXTERN(int) git_repository_lookup(git_object **object, git_repository *repo, const git_oid *id, git_otype type);
-
 /**
  * Get the object database behind a Git repository
  *
@@ -173,29 +153,6 @@ GIT_EXTERN(git_odb *) git_repository_database(git_repository *repo);
 GIT_EXTERN(int) git_repository_index(git_index **index, git_repository *repo);
 
 /**
- * Create a new in-memory repository object with
- * the given type.
- *
- * The object's attributes can be filled in using the
- * corresponding setter methods.
- *
- * The object will be written back to given git_repository
- * when the git_object_write() function is called; objects
- * cannot be written to disk until all their main
- * attributes have been properly filled.
- *
- * Objects are instantiated with no SHA1 id; their id
- * will be automatically generated when writing to the
- * repository.
- *
- * @param object pointer to the new object
- * @parem repo Repository where the object belongs
- * @param type Type of the object to be created
- * @return the new object
- */
-GIT_EXTERN(int) git_repository_newobject(git_object **object, git_repository *repo, git_otype type);
-
-/**
  * Free a previously allocated repository
  * @param repo repository handle to close. If NULL nothing occurs.
  */
@@ -218,22 +175,6 @@ GIT_EXTERN(void) git_repository_free(git_repository *repo);
  */
 GIT_EXTERN(int) git_repository_init(git_repository **repo_out, const char *path, unsigned is_bare);
 
-/**
- * Lookup a reference by its name in the repository.
- *
- * The generated reference is owned by the repository and
- * should not be freed by the user.
- *
- * TODO:
- *	- Ensure the reference name is valid
- *
- * @param reference_out pointer to the looked-up reference
- * @param repo the repository to look up the reference
- * @param name the long name for the reference (e.g. HEAD, ref/heads/master, refs/tags/v0.1.0, ...)
- * @return a reference to the reference
- */
-GIT_EXTERN(int) git_repository_lookup_ref(git_reference **reference_out, git_repository *repo, const char *name);
-	
 /** @} */
 GIT_END_DECL
 #endif
diff --git a/src/git2/tag.h b/src/git2/tag.h
index 4fd6ea980..2ca25c8a0 100644
--- a/src/git2/tag.h
+++ b/src/git2/tag.h
@@ -28,7 +28,7 @@
 #include "common.h"
 #include "types.h"
 #include "oid.h"
-#include "repository.h"
+#include "object.h"
 
 /**
  * @file git2/tag.h
@@ -51,7 +51,7 @@ GIT_BEGIN_DECL
  */
 GIT_INLINE(int) git_tag_lookup(git_tag **tag, git_repository *repo, const git_oid *id)
 {
-	return git_repository_lookup((git_object **)tag, repo, id, (git_otype)GIT_OBJ_TAG);
+	return git_object_lookup((git_object **)tag, repo, id, (git_otype)GIT_OBJ_TAG);
 }
 
 /**
@@ -67,7 +67,7 @@ GIT_INLINE(int) git_tag_lookup(git_tag **tag, git_repository *repo, const git_oi
  */
 GIT_INLINE(int) git_tag_new(git_tag **tag, git_repository *repo)
 {
-	return git_repository_newobject((git_object **)tag, repo, (git_otype)GIT_OBJ_TAG);
+	return git_object_new((git_object **)tag, repo, (git_otype)GIT_OBJ_TAG);
 }
 
 /**
diff --git a/src/git2/tree.h b/src/git2/tree.h
index 20c367574..70040f058 100644
--- a/src/git2/tree.h
+++ b/src/git2/tree.h
@@ -28,7 +28,7 @@
 #include "common.h"
 #include "types.h"
 #include "oid.h"
-#include "repository.h"
+#include "object.h"
 
 /**
  * @file git2/tree.h
@@ -51,7 +51,7 @@ GIT_BEGIN_DECL
  */
 GIT_INLINE(int) git_tree_lookup(git_tree **tree, git_repository *repo, const git_oid *id)
 {
-	return git_repository_lookup((git_object **)tree, repo, id, GIT_OBJ_TREE);
+	return git_object_lookup((git_object **)tree, repo, id, GIT_OBJ_TREE);
 }
 
 /**
@@ -67,7 +67,7 @@ GIT_INLINE(int) git_tree_lookup(git_tree **tree, git_repository *repo, const git
  */
 GIT_INLINE(int) git_tree_new(git_tree **tree, git_repository *repo)
 {
-	return git_repository_newobject((git_object **)tree, repo, GIT_OBJ_TREE);
+	return git_object_new((git_object **)tree, repo, GIT_OBJ_TREE);
 }
 
 /**
diff --git a/src/object.c b/src/object.c
index c53a3acae..c9809c52a 100644
--- a/src/object.c
+++ b/src/object.c
@@ -209,6 +209,125 @@ void git_object__source_close(git_object *object)
 	}
 }
 
+static int create_object(git_object **object_out, git_otype type)
+{
+	git_object *object = NULL;
+
+	assert(object_out);
+
+	*object_out = NULL;
+
+	switch (type) {
+	case GIT_OBJ_COMMIT:
+	case GIT_OBJ_TAG:
+	case GIT_OBJ_BLOB:
+		object = git__malloc(git_object__size(type));
+		if (object == NULL)
+			return GIT_ENOMEM;
+		memset(object, 0x0, git_object__size(type));
+		break;
+		
+	case GIT_OBJ_TREE:
+		object = (git_object *)git_tree__new();
+		if (object == NULL)
+			return GIT_ENOMEM;
+		break;
+
+	default:
+		return GIT_EINVALIDTYPE;
+	}
+
+	*object_out = object;
+	return GIT_SUCCESS;
+}
+
+int git_object_new(git_object **object_out, git_repository *repo, git_otype type)
+{
+	git_object *object = NULL;
+	int error;
+
+	assert(object_out && repo);
+
+	if ((error = create_object(&object, type)) < GIT_SUCCESS)
+		return error;
+
+	object->repo = repo;
+	object->in_memory = 1;
+	object->modified = 1;
+
+	object->source.raw.type = type;
+
+	*object_out = object;
+	return GIT_SUCCESS;
+}
+
+int git_object_lookup(git_object **object_out, git_repository *repo, const git_oid *id, git_otype type)
+{
+	git_object *object = NULL;
+	git_rawobj obj_file;
+	int error = GIT_SUCCESS;
+
+	assert(repo && object_out && id);
+
+	object = git_hashtable_lookup(repo->objects, id);
+	if (object != NULL) {
+		*object_out = object;
+		return GIT_SUCCESS;
+	}
+
+	error = git_odb_read(&obj_file, repo->db, id);
+	if (error < GIT_SUCCESS)
+		return error;
+
+	if (type != GIT_OBJ_ANY && type != obj_file.type) {
+		git_rawobj_close(&obj_file);
+		return GIT_EINVALIDTYPE;
+	}
+
+	type = obj_file.type;
+
+	if ((error = create_object(&object, type)) < GIT_SUCCESS)
+		return error;
+
+	/* Initialize parent object */
+	git_oid_cpy(&object->id, id);
+	object->repo = repo;
+	memcpy(&object->source.raw, &obj_file, sizeof(git_rawobj));
+	object->source.open = 1;
+
+	switch (type) {
+	case GIT_OBJ_COMMIT:
+		error = git_commit__parse((git_commit *)object);
+		break;
+
+	case GIT_OBJ_TREE:
+		error = git_tree__parse((git_tree *)object);
+		break;
+
+	case GIT_OBJ_TAG:
+		error = git_tag__parse((git_tag *)object);
+		break;
+
+	case GIT_OBJ_BLOB:
+		error = git_blob__parse((git_blob *)object);
+		break;
+
+	default:
+		break;
+	}
+
+	if (error < GIT_SUCCESS) {
+		git_object_free(object);
+		return error;
+	}
+
+	git_object__source_close(object);
+	git_hashtable_insert(repo->objects, &object->id, object);
+
+	*object_out = object;
+	return GIT_SUCCESS;
+}
+
 int git_object_write(git_object *object)
 {
 	int error;
diff --git a/src/refs.c b/src/refs.c
index 90123f1bb..f8da56154 100644
--- a/src/refs.c
+++ b/src/refs.c
@@ -818,7 +818,7 @@ cleanup:
 /**
  * Constructors
  */
-int git_repository_lookup_ref(git_reference **ref_out, git_repository *repo, const char *name)
+int git_reference_lookup(git_reference **ref_out, git_repository *repo, const char *name)
 {
 	int error;
 	char normalized_name[GIT_PATH_MAX];
@@ -1118,7 +1118,7 @@ int git_reference_delete(git_reference *ref)
 		/* When deleting a loose reference, we have to ensure that an older
 		 * packed version of it doesn't exist
 		 */
-		if (!git_repository_lookup_ref(&reference, ref->owner, ref->name)) {
+		if (!git_reference_lookup(&reference, ref->owner, ref->name)) {
 			assert((reference->type & GIT_REF_PACKED) != 0);
 			error = git_reference_delete(reference);
 		}
@@ -1157,7 +1157,7 @@ int git_reference_rename(git_reference *ref, const char *new_name)
 		return error;
 
 	/* Ensure we're not going to overwrite an existing reference */
-	error = git_repository_lookup_ref(&looked_up_ref, ref->owner, new_name);
+	error = git_reference_lookup(&looked_up_ref, ref->owner, new_name);
 	if (error == GIT_SUCCESS)
 		return GIT_EINVALIDREFNAME;
 
@@ -1269,7 +1269,7 @@ int git_reference_resolve(git_reference **resolved_ref, git_reference *ref)
 		}
 
 		ref_sym = (reference_symbolic *)ref;
-		if ((error = git_repository_lookup_ref(&ref, repo, ref_sym->target)) < GIT_SUCCESS)
+		if ((error = git_reference_lookup(&ref, repo, ref_sym->target)) < GIT_SUCCESS)
 			return error;
 	}
 
diff --git a/src/repository.c b/src/repository.c
index 9d457b7d2..77ce0c0f4 100644
--- a/src/repository.c
+++ b/src/repository.c
@@ -379,125 +379,6 @@ git_odb *git_repository_database(git_repository *repo)
 	return repo->db;
 }
 
-static int create_object(git_object **object_out, git_otype type)
-{
-	git_object *object = NULL;
-
-	assert(object_out);
-
-	*object_out = NULL;
-
-	switch (type) {
-	case GIT_OBJ_COMMIT:
-	case GIT_OBJ_TAG:
-	case GIT_OBJ_BLOB:
-		object = git__malloc(git_object__size(type));
-		if (object == NULL)
-			return GIT_ENOMEM;
-		memset(object, 0x0, git_object__size(type));
-		break;
-		
-	case GIT_OBJ_TREE:
-		object = (git_object *)git_tree__new();
-		if (object == NULL)
-			return GIT_ENOMEM;
-		break;
-
-	default:
-		return GIT_EINVALIDTYPE;
-	}
-
-	*object_out = object;
-	return GIT_SUCCESS;
-}
-
-int git_repository_newobject(git_object **object_out, git_repository *repo, git_otype type)
-{
-	git_object *object = NULL;
-	int error;
-
-	assert(object_out && repo);
-
-	if ((error = create_object(&object, type)) < GIT_SUCCESS)
-		return error;
-
-	object->repo = repo;
-	object->in_memory = 1;
-	object->modified = 1;
-
-	object->source.raw.type = type;
-
-	*object_out = object;
-	return GIT_SUCCESS;
-}
-
-int git_repository_lookup(git_object **object_out, git_repository *repo, const git_oid *id, git_otype type)
-{
-	git_object *object = NULL;
-	git_rawobj obj_file;
-	int error = GIT_SUCCESS;
-
-	assert(repo && object_out && id);
-
-	object = git_hashtable_lookup(repo->objects, id);
-	if (object != NULL) {
-		*object_out = object;
-		return GIT_SUCCESS;
-	}
-
-	error = git_odb_read(&obj_file, repo->db, id);
-	if (error < GIT_SUCCESS)
-		return error;
-
-	if (type != GIT_OBJ_ANY && type != obj_file.type) {
-		git_rawobj_close(&obj_file);
-		return GIT_EINVALIDTYPE;
-	}
-
-	type = obj_file.type;
-
-	if ((error = create_object(&object, type)) < GIT_SUCCESS)
-		return error;
-
-	/* Initialize parent object */
-	git_oid_cpy(&object->id, id);
-	object->repo = repo;
-	memcpy(&object->source.raw, &obj_file, sizeof(git_rawobj));
-	object->source.open = 1;
-
-	switch (type) {
-	case GIT_OBJ_COMMIT:
-		error = git_commit__parse((git_commit *)object);
-		break;
-
-	case GIT_OBJ_TREE:
-		error = git_tree__parse((git_tree *)object);
-		break;
-
-	case GIT_OBJ_TAG:
-		error = git_tag__parse((git_tag *)object);
-		break;
-
-	case GIT_OBJ_BLOB:
-		error = git_blob__parse((git_blob *)object);
-		break;
-
-	default:
-		break;
-	}
-
-	if (error < GIT_SUCCESS) {
-		git_object_free(object);
-		return error;
-	}
-
-	git_object__source_close(object);
-	git_hashtable_insert(repo->objects, &object->id, object);
-
-	*object_out = object;
-	return GIT_SUCCESS;
-}
-
 static int repo_init_reinit(repo_init *results)
 {
 	/* TODO: reinit the repository */
diff --git a/src/tag.c b/src/tag.c
index 4c6cabf0b..7d57ee075 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -164,7 +164,7 @@ static int parse_tag_buffer(git_tag *tag, char *buffer, const char *buffer_end)
 	if (tag->type == GIT_OBJ_BAD)
 		return GIT_EOBJCORRUPTED;
 
-	error = git_repository_lookup(&tag->target, tag->object.repo, &target_oid, tag->type);
+	error = git_object_lookup(&tag->target, tag->object.repo, &target_oid, tag->type);
 	if (error < 0)
 		return error;
 
diff --git a/src/tree.c b/src/tree.c
index a23be9151..656798c63 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -153,7 +153,7 @@ const git_oid *git_tree_entry_id(git_tree_entry *entry)
 int git_tree_entry_2object(git_object **object_out, git_tree_entry *entry)
 {
 	assert(entry && object_out);
-	return git_repository_lookup(object_out, entry->owner->object.repo, &entry->oid, GIT_OBJ_ANY);
+	return git_object_lookup(object_out, entry->owner->object.repo, &entry->oid, GIT_OBJ_ANY);
 }
 
 static void sort_entries(git_tree *tree)