fix(scripts/lint): don't filter out TS files from ESLint CLI args

Author: jrolfs

src/scripts/__tests__/__snapshots__/lint.js.snap

@@ -18,4 +18,4 @@ exports[`lint does not use built-in ignore with --ignore-path 1`] = `eslint --co
 
 exports[`lint does not use built-in ignore with eslintIgnore pkg prop 1`] = `eslint --config ./src/config/eslintrc.js --cache --cache-location <PROJECT_ROOT>/node_modules/.cache/.eslintcache --ext .js,.jsx,.ts,.tsx .`;
 
-exports[`lint runs on given files, but only js files 1`] = `eslint --config ./src/config/eslintrc.js --ignore-path ./src/config/eslintignore --cache --cache-location <PROJECT_ROOT>/node_modules/.cache/.eslintcache --ext .js,.jsx,.ts,.tsx ./src/index.js ./src/component.js`;
+exports[`lint runs on given files, but only js and ts files 1`] = `eslint --config ./src/config/eslintrc.js --ignore-path ./src/config/eslintignore --cache --cache-location <PROJECT_ROOT>/node_modules/.cache/.eslintcache --ext .js,.jsx,.ts,.tsx ./src/index.js ./src/index.ts ./src/component.jsx ./src/component.tsx`;

src/scripts/__tests__/lint.js

@@ -75,12 +75,14 @@ cases(
     '--no-cache will disable caching': {
       args: ['--no-cache'],
     },
-    'runs on given files, but only js files': {
+    'runs on given files, but only js and ts files': {
       args: [
         './src/index.js',
+        './src/index.ts',
         './package.json',
         './src/index.css',
-        './src/component.js',
+        './src/component.jsx',
+        './src/component.tsx',
       ],
     },
   },

src/scripts/lint.js

@@ -46,7 +46,7 @@ if (filesGiven) {
   // we need to take all the flag-less arguments (the files that should be linted)
   // and filter out the ones that aren't js files. Otherwise json or css files
   // may be passed through
-  args = args.filter(a => !parsedArgs._.includes(a) || /\.jsx?$/.test(a))
+  args = args.filter(a => !parsedArgs._.includes(a) || /\.(j|t)sx?$/.test(a))
 }
 
 const result = spawn.sync(