refactor: split out readPointerInfo() function

src/pointers.ts

@@ -20,14 +20,8 @@ function isValidPointerInfo(val: Record<string, any>): val is PointerInfo {
   return val.oid.trim !== undefined && typeof val.size === 'number';
 }
 
-interface PointerRequest {
-  dir: string;
-  gitdir?: string;
-  content: Buffer;
-}
 
-
+function readPointerInfo(content: Buffer): PointerInfo {
-export function readPointer({ dir, gitdir = path.join(dir, '.git'), content }: PointerRequest): Pointer {
   const info = content.toString().trim().split('\n').reduce((accum, line) => {
     const [k, v] = line.split(' ', 2);
     if (k === 'oid') {
@@ -39,17 +33,28 @@ export function readPointer({ dir, gitdir = path.join(dir, '.git'), content }: P
   }, {} as Record<string, any>);
 
   if (isValidPointerInfo(info)) {
-    const objectPath = path.join(
+    return info;
-      gitdir,
-      'lfs',
-      'objects',
-      info.oid.substr(0, 2),
-      info.oid.substr(2, 2),
-      info.oid);
-
-    return { info, objectPath };
-
   } else {
     throw new Error("LFS pointer is incomplete or cannot be read");
   }
 }
+
+
+interface PointerRequest {
+  dir: string;
+  gitdir?: string;
+  content: Buffer;
+}
+export function readPointer({ dir, gitdir = path.join(dir, '.git'), content }: PointerRequest): Pointer {
+  const info = readPointerInfo(content);
+
+  const objectPath = path.join(
+    gitdir,
+    'lfs',
+    'objects',
+    info.oid.substr(0, 2),
+    info.oid.substr(2, 2),
+    info.oid);
+
+  return { info, objectPath };
+}