improve error handling

.gitignore

@@ -6,4 +6,3 @@
 CMakeSettings.json
 .vs
 .idea
-.cache

include/git2/repository.h

@@ -11,7 +11,6 @@
 #include "types.h"
 #include "oid.h"
 #include "buffer.h"
-#include "oidarray.h"
 
 /**
  * @file git2/repository.h

src/libgit2/grafts.c

@@ -93,13 +93,17 @@ int git_grafts_refresh(git_grafts *grafts)
 	if (!grafts->path)
 		return 0;
 
-	error = git_futils_readbuffer_updated(&contents, grafts->path,
-					      (grafts->path_checksum).id, &updated);
-	if (error < 0 || error == GIT_ENOTFOUND || !updated) {
+	if ((error = git_futils_readbuffer_updated(&contents, grafts->path, 
+				(grafts->path_checksum).id, &updated)) < 0) {
 		if (error == GIT_ENOTFOUND) {
 			git_grafts_clear(grafts);
 			error = 0;
 		}
+		
+		goto cleanup;
+	}
+
+	if (!updated) {
 		goto cleanup;
 	}
 

src/libgit2/repository.c

@@ -735,13 +735,6 @@ static int load_grafts(git_repository *repo)
 	git_str path = GIT_STR_INIT;
 	int error;
 
-	if ((error = git_repository__item_path(&path, repo, GIT_REPOSITORY_ITEM_INFO)) < 0 ||
-	    (error = git_str_joinpath(&path, path.ptr, "grafts")) < 0 ||
-	    (error = git_grafts_from_file(&repo->grafts, path.ptr)) < 0)
-		goto error;
-
-	git_str_clear(&path);
-
 	if ((error = git_str_joinpath(&path, repo->gitdir, "shallow")) < 0 ||
 	    (error = git_grafts_from_file(&repo->shallow_grafts, path.ptr)) < 0)
 		goto error;

src/libgit2/repository.h

@@ -25,7 +25,6 @@
 #include "submodule.h"
 #include "diff_driver.h"
 #include "grafts.h"
-#include "oidarray.h"
 
 #define DOT_GIT ".git"
 #define GIT_DIR DOT_GIT "/"