fix: muncher validation (#133)

💥

src/Application/Application.ts

@@ -32,8 +32,6 @@ import { filterVulnerabilities } from '../Whitelist/VulnerabilityExcluder';
 import { IqServerConfig } from '../Config/IqServerConfig';
 import { OssIndexServerConfig } from '../Config/OssIndexServerConfig';
 
-const pack = require('../../package.json');
-
 export class Application {
   private results: Array<Coordinates> = new Array();
   private sbom: string = "";
@@ -65,7 +63,7 @@ export class Application {
       this.muncher = bower;
     }
     else {
-      logMessage('Could not instantiate muncher', 'error');
+      logMessage('Failed project directory validation.  Are you in a (built) node, yarn, or bower project directory?', 'error');
       throw new Error("Could not instantiate muncher");
     }
   }

src/Munchers/NpmList.ts

@@ -30,8 +30,8 @@ export class NpmList implements Muncher {
   }
 
   public isValid(): boolean {
-    let tempPath = path.join(process.cwd(), "package-lock.json");
-    return fs.existsSync(tempPath);
+    let nodeModulesPath = path.join(process.cwd(), "node_modules");
+    return fs.existsSync(nodeModulesPath);
   }
 
   // TODO: There is a 1 component discrepency in what gets identified by our installed deps implementation

src/index.ts

@@ -160,12 +160,16 @@ if (argv) {
     } 
 
     let app: Application;
-
-    if (argv.dev) {
-      app = new Application(argv.dev as boolean, silence, artie);
-    } else {
-      app = new Application(false, silence, artie);
+    try {
+      if (argv.dev) {
+        app = new Application(argv.dev as boolean, silence, artie);
+      } else {
+        app = new Application(false, silence, artie);
+      }
+      app.startApplication(argv);
+    }
+    catch(error) {
+      console.error(error.message);
     }
-    app.startApplication(argv);
   }
 }