fix: add new ValidationError so that we show them in red in the output

src/cli/commands/monitor/index.ts

@@ -41,6 +41,7 @@ import {
   FailedToRunTestError,
   MonitorError,
   MissingArgError,
+  ValidationError,
 } from '../../../lib/errors';
 import { isMultiProjectScan } from '../../../lib/is-multi-project-scan';
 import { getEcosystem, monitorEcosystem } from '../../../lib/ecosystems';
@@ -339,15 +340,15 @@ function getProjectAttribute<T>(
   // When it's specified without the =, we raise an explicit error to avoid
   // accidentally clearing the existing values.
   if (options[attribute] === true) {
-    throw new Error(
+    throw new ValidationError(
       `--${attribute} must contain an '=' with a comma-separated list of values. To clear all existing values, pass no values i.e. --${attribute}=`,
     );
   }
 
   const values = options[attribute].split(',');
   const extra = values.filter((value) => !permittedValues.includes(value));
   if (extra.length > 0) {
-    throw new Error(
+    throw new ValidationError(
       `${extra.length} invalid ${attribute}: ${extra.join(', ')}. ` +
         `Possible values are: ${permittedValues.join(', ')}`,
     );
@@ -394,7 +395,7 @@ export function generateTags(options): Tag[] | undefined {
   // When it's specified without the =, we raise an explicit error to avoid
   // accidentally clearing the existing tags;
   if (options.tags === true) {
-    throw new Error(
+    throw new ValidationError(
       `--tags must contain an '=' with a comma-separated list of pairs (also separated with an '='). To clear all existing values, pass no values i.e. --tags=`,
     );
   }
@@ -405,7 +406,7 @@ export function generateTags(options): Tag[] | undefined {
   for (const keyEqualsValue of keyEqualsValuePairs) {
     const parts = keyEqualsValue.split('=');
     if (parts.length !== 2) {
-      throw new Error(
+      throw new ValidationError(
         `The tag "${keyEqualsValue}" does not have an "=" separating the key and value.`,
       );
     }

src/lib/errors/index.ts

@@ -5,6 +5,7 @@ export { NoSupportedManifestsFoundError } from './no-supported-manifests-found';
 export { NoSupportedSastFiles } from './no-supported-sast-files-found';
 export { CustomError } from './custom-error';
 export { MonitorError } from './monitor-error';
+export { ValidationError } from './validation-error';
 export { ConnectionTimeoutError } from './connection-timeout-error';
 export { FailedToLoadPolicyError } from './failed-to-load-policy-error';
 export { PolicyNotFoundError } from './policy-not-found-error';

src/lib/errors/validation-error.ts

@@ -0,0 +1,8 @@
+import { CustomError } from './custom-error';
+
+export class ValidationError extends CustomError {
+  constructor(message: string) {
+    super(message);
+    this.userMessage = message;
+  }
+}