chore: use nearley preprocessor to get typescript

Author: David Tanner

.eslintrc.json

@@ -9,7 +9,7 @@
   },
   "ignorePatterns": [
     "/lib/",
-    "src/utils/lambdaURLGrammar.js"
+    "src/utils/lambdaURLGrammar.ts"
   ],
   "rules": {
     "@typescript-eslint/restrict-template-expressions": "off"

.gitignore

@@ -8,3 +8,4 @@ node_modules/
 /src/**/*.d.ts
 .idea
 yarn-error.log
+src/utils/lambdaURLGrammar.ts

package.json

@@ -18,7 +18,7 @@
     "url": "https://github.com/lifeomic/alpha.git"
   },
   "scripts": {
-    "buildGrammar": "nearleyc src/utils/lambdaURL.ne -o src/utils/lambdaURLGrammar.js",
+    "buildGrammar": "nearleyc src/utils/lambdaURL.ne -o src/utils/lambdaURLGrammar.ts",
     "lint": "eslint .",
     "postlint": "yarn tsc",
     "lint:fix": "eslint --fix .",

src/utils/lambdaURL.ne

@@ -1,3 +1,5 @@
+@preprocessor typescript
+
 @{%
 const flattenDeep = require('lodash/flattenDeep');
 const get = require('lodash/get');

src/utils/url.ts

@@ -1,12 +1,10 @@
-import nearley, { CompiledRules } from 'nearley';
+import nearley from 'nearley';
+import grammar from './lambdaURLGrammar';
 
 const WITH_SCHEME = /^[a-z][a-z\d+\-.]*:\/\//i;
 
 export const isAbsoluteURL = (url: string) => WITH_SCHEME.test(url) || url.startsWith('//');
 
-// eslint-disable-next-line @typescript-eslint/no-require-imports
-const grammar = require('./lambdaURLGrammar') as CompiledRules;
-
 export const isLambdaUrl = (url: string) => !!url.match(/^lambda:\/\//);
 
 export interface LambdaUrl {