support ajv strict option via inputs

README.md

@@ -53,6 +53,7 @@ Here is a quick example of how to install this action in any workflow:
 | `use_gitignore` | `true` | `"true"` | Whether or not to use the .gitignore file in the root of the repository to exclude files from validation - `"true"` or `"false"` - Default is `"true"` |
 | `git_ignore_path` | `false` | `".gitignore"` | The full path to the .gitignore file to use if use_gitignore is set to "true" (e.g. ./src/.gitignore) - Default is ".gitignore" which uses the .gitignore file in the root of the repository |
 | `allow_multiple_documents` | `false` | `"false"` | Whether or not to allow multiple documents in a single YAML file - `"true"` or `"false"` - Default is `"false"`. Useful for k8s documents. |
+| `ajv_strict_mode` | `false` | `"true"` | Whether or not to use strict mode for AJV - "true" or "false" - Default is "true" |
 | `github_token` | `false` | `${{ github.token }}` | The GitHub token used to create an authenticated client - Provided for you by default! |
 
 ## Outputs 📤

__tests__/functions/json-validator.test.js

@@ -27,6 +27,7 @@ beforeEach(() => {
   process.env.INPUT_YAML_EXTENSION_SHORT = '.yml'
   process.env.INPUT_FILES = ''
   process.env.INPUT_JSON_SCHEMA_VERSION = 'draft-07'
+  process.env.INPUT_AJV_STRICT_MODE = 'true'
 })
 
 test('successfully validates a json file with a schema', async () => {

action.yml

@@ -85,6 +85,10 @@ inputs:
     description: Whether or not to allow multiple documents in a single YAML file - "true" or "false" - Default is "false"
     required: false
     default: "false"
+  ajv_strict_mode:
+    description: Whether or not to use strict mode for AJV - "true" or "false" - Default is "true"
+    required: false
+    default: "true"
 outputs:
   success:
     description: Whether or not the validation was successful for all files - "true" or "false"

src/functions/json-validator.js

@@ -13,19 +13,23 @@ import {globSync} from 'glob'
 // :returns: the compiled schema
 async function schema(jsonSchema) {
   const jsonSchemaVersion = core.getInput('json_schema_version')
+  const strict = core.getBooleanInput('ajv_strict_mode')
+
+  core.debug(`json_schema_version: ${jsonSchemaVersion}`)
+  core.debug(`strict: ${strict}`)
 
   var ajv
   if (jsonSchemaVersion === 'draft-07') {
-    ajv = new Ajv({allErrors: true})
+    ajv = new Ajv({allErrors: true, strict: strict})
   } else if (jsonSchemaVersion === 'draft-2019-09') {
-    ajv = new Ajv2019({allErrors: true})
+    ajv = new Ajv2019({allErrors: true, strict: strict})
   } else if (jsonSchemaVersion === 'draft-2020-12') {
-    ajv = new Ajv2020({allErrors: true})
+    ajv = new Ajv2020({allErrors: true, strict: strict})
   } else {
     core.warning(
       `json_schema_version '${jsonSchemaVersion}' is not supported. Defaulting to 'draft-07'`
     )
-    ajv = new Ajv({allErrors: true})
+    ajv = new Ajv({allErrors: true, strict: strict})
   }
 
   // use ajv-formats if enabled