audit: Exit with non-zero when vulnerabilities are found

Credit: @iarna

Author: iarna

lib/audit.js

@@ -78,6 +78,12 @@ function auditCmd (args, cb) {
     }
     throw err
   }).then((auditResult) => {
+    const vulns =
+      auditResult.metadata.vulnerabilities.low +
+      auditResult.metadata.vulnerabilities.moderate +
+      auditResult.metadata.vulnerabilities.high +
+      auditResult.metadata.vulnerabilities.critical
+    if (vulns > 0) process.exitCode = 1
     return audit.printFullReport(auditResult)
   }).asCallback(cb)
 }