Feature/custom schema for validation (#378)

* Added arg option '--scheme'

* Implemented 'getSchema' function, that looks for a specified custom schema

* Added try catch clause, and reduced lines of code. Fixed a typo

Co-authored-by: rick0335 <[email protected]>

index.js

@@ -42,6 +42,10 @@ lib.preFlow(async (err, results) => {
       '-d, --dir <path>',
       'Used by `serve` to indicate a public directory path.',
       'public',
+    )
+    .option(
+      '--schema <relativePath>',
+      'Used by `test` to validate against a custom schema.',
     );
 
   program

lib/test.js

@@ -3,10 +3,27 @@ const promisify = require('util.promisify');
 const ZSchema = require('z-schema');
 const ZSchemaErrors = require('z-schema-errors');
 
+const path = require('path');
+const fs = require('fs');
+const getSchema = function () {
+  const index = process.argv.findIndex((value) => value === '--schema');
+  if (index === -1) {
+    return schema;
+  } // Return the default schema, if a custom schema wasn't specified
+
+  try {
+    const customSchemaPath = path.join(process.cwd(), process.argv[index + 1]);
+    return JSON.parse(fs.readFileSync(customSchemaPath, { encoding: 'utf-8' }));
+  } catch (error) {
+    console.log(error.message);
+    process.exit();
+  }
+};
+
 const reporter = ZSchemaErrors.init();
 const validator = new ZSchema();
 const validate = promisify((obj, ...args) =>
-  validator.validate(obj, schema, ...args),
+  validator.validate(obj, getSchema(), ...args),
 );
 module.exports = async (resume) => {
   try {