Disable ajv strict mode by default, but allow to use some strict checks

README.md

@@ -40,6 +40,7 @@ Further options to add to the commands above:
 - To validate against a specific local schema (e.g. an external extension): `--schemaMap https://stac-extensions.github.io/foobar/v1.0.0/schema.json=./json-schema/schema.json`
 - To not verify SSL/TLS certificates: `--ignoreCerts`
 - Add `--verbose` to get a more detailed output
+- Add `--strict` to enable strict mode in validation for schemas and numbers (as defined by [ajv](https://ajv.js.org/strict-mode.html) for options `strictSchema`, `strictNumbers` and `strictTuples`)
 - To lint local JSON files: `--lint` (add `--verbose` to get a diff with the changes required)
 - To format / pretty-print local JSON files: `--format` (Attention: this will override the source files without warning!)
 
@@ -70,7 +71,8 @@ The schema map is an object instead of string separated with a `=` character.
   "ignoreCerts": false,
   "verbose": false,
   "lint": true,
-  "format": false
+  "format": false,
+  "strict": true
 }
 ```
 

index.js

@@ -15,6 +15,7 @@ let DEBUG = false;
 let ajv = new Ajv({
 	formats: iriFormats,
 	allErrors: true,
+	strict: false,
 	logger: DEBUG ? console : false,
 	loadSchema: loadJsonFromUri
 });
@@ -24,7 +25,7 @@ let verbose = false;
 let schemaMap = {};
 let schemaFolder = null;
 
-let booleanArgs = ['verbose', 'ignoreCerts', 'lint', 'format', 'version'];
+let booleanArgs = ['verbose', 'ignoreCerts', 'lint', 'format', 'version', 'strict'];
 
 async function run(config) {
 	try {
@@ -100,6 +101,11 @@ async function run(config) {
 		if (config.ignoreCerts) {
 			process.env["NODE_TLS_REJECT_UNAUTHORIZED"] = 0;
 		}
+		if (config.strict) {
+			ajv.opts.strictSchema = true;
+			ajv.opts.strictNumbers = true;
+			ajv.opts.strictTuples = true;
+		}
 
 		if (typeof config.schemas === 'string') {
 			let stat = await fs.lstat(config.schemas);