Split into functions, to call/test separately

Author: lornajane

index.js

@@ -3,22 +3,8 @@ import jsonpath from 'jsonpath';
 import {safeStringify,parseWithPointers} from "@stoplight/yaml";
 import mergician from 'mergician';
 
-// example: node index.js test/specs/petstore.yaml test/overlays/overlay.yaml
-const openapiFile = process.argv[2]
-const overlayFile = process.argv[3]
-
-try {
-
-	// Parse the "input" OpenAPI document
-	const specraw = fs.readFileSync(openapiFile, 'utf8');
-	var spec = parseWithPointers(specraw).data;
-
-	// Parse the "overlay" document
-	const overlayraw = fs.readFileSync(overlayFile, 'utf8');
-	const overlay = parseWithPointers(overlayraw).data;
-
+function applyOverlayToOpenAPI(spec, overlay) {
 	// Use jsonpath.apply to do the changes
-	
 	overlay.actions.forEach((a)=>{
 		jsonpath.apply(spec, a.target, (chunk) => {
 			// Is it a remove?
@@ -36,11 +22,32 @@ try {
 		});
 	})
 
-	// Output the new spec
-	//console.log(JSON.stringify(spec, null, 2));
-	console.log(safeStringify(spec));
+	return spec;
+}
+
+export function overlayFiles(openapiFile, overlayFile) {
+	// Parse the "input" OpenAPI document
+//return openapiFile;
+	console.debug("Hi");
+    console.debug(openapiFile);
+    console.debug (typeof openapiFile);
+	const specraw = fs.readFileSync(openapiFile, 'utf8');
+	var spec = parseWithPointers(specraw).data;
+
+	// Parse the "overlay" document
+	const overlayraw = fs.readFileSync(overlayFile, 'utf8');
+	const overlay = parseWithPointers(overlayraw).data;
+
+	spec = applyOverlayToOpenAPI(spec, overlay);
+
+	// Return the new spec
+	return safeStringify(spec);
 
-} catch (err) {
-	console.error(err);
 }
 
+// example: node index.js test/openapi/petstore.yaml test/overlays/overlay.yaml
+const openapiFile = process.argv[2]
+const overlayFile = process.argv[3]
+var spec = overlayFiles(openapiFile, overlayFile);
+console.log(spec);
+