feat: add options validation (schema-utils) (#184)

package.json

@@ -3,11 +3,20 @@
   "version": "1.0.0",
   "author": "Tobias Koppers @sokra",
   "description": "file loader module for webpack",
+  "license": "MIT",
+  "engines": {
+    "node": ">= 4.3 < 5.0.0 || >= 5.10"
+  },
+  "main": "dist/cjs.js",
   "files": [
     "dist"
   ],
+  "directories": {
+    "test": "test"
+  },
   "dependencies": {
-    "loader-utils": "^1.0.2"
+    "loader-utils": "^1.0.2",
+    "schema-utils": "^0.3.0"
   },
   "devDependencies": {
     "babel-cli": "^6.24.1",
@@ -33,7 +42,7 @@
   "scripts": {
     "start": "npm run build -- -w",
     "appveyor:test": "npm run test",
-    "build": "cross-env NODE_ENV=production babel src -d dist --ignore 'src/**/*.test.js'",
+    "build": "cross-env NODE_ENV=production babel src -d dist --ignore 'src/**/*.test.js' --copy-files",
     "clean": "del-cli dist",
     "lint": "eslint --cache src test",
     "lint-staged": "lint-staged",
@@ -57,14 +66,6 @@
     "url": "https://github.com/webpack/file-loader/issues"
   },
   "homepage": "https://github.com/webpack/file-loader",
-  "main": "dist/cjs.js",
-  "directories": {
-    "test": "test"
-  },
-  "license": "MIT",
-  "engines": {
-    "node": ">= 4.3 < 5.0.0 || >= 5.10"
-  },
   "pre-commit": "lint-staged",
   "lint-staged": {
     "*.js": [

src/index.js

@@ -1,77 +1,68 @@
-/*
-  MIT License http://www.opensource.org/licenses/mit-license.php
-  Author Tobias Koppers @sokra
-*/
 import path from 'path';
 import loaderUtils from 'loader-utils';
+import validateOptions from 'schema-utils';
+import schema from './options.json';
 
-export default function fileLoader(content) {
-  if (!this.emitFile) throw new Error('emitFile is required from module system');
+export default function loader(content) {
+  if (!this.emitFile) throw new Error('File Loader\n\nemitFile is required from module system');
 
-  const query = loaderUtils.getOptions(this) || {};
-  const configKey = query.config || 'fileLoader';
-  const options = this.options[configKey] || {};
+  const options = loaderUtils.getOptions(this) || {};
 
-  const config = {
-    publicPath: undefined,
-    useRelativePath: false,
-    name: '[hash].[ext]',
-  };
+  validateOptions(schema, options, 'File Loader');
 
-  // options takes precedence over config
-  Object.keys(options).forEach((attr) => {
-    config[attr] = options[attr];
-  });
-
-  // query takes precedence over config and options
-  Object.keys(query).forEach((attr) => {
-    config[attr] = query[attr];
-  });
+  const context = options.context || this.options.context;
 
-  const context = config.context || this.options.context;
-  let url = loaderUtils.interpolateName(this, config.name, {
+  let url = loaderUtils.interpolateName(this, options.name, {
     context,
     content,
-    regExp: config.regExp,
+    regExp: options.regExp,
   });
 
   let outputPath = '';
-  if (config.outputPath) {
+
+  if (options.outputPath) {
     // support functions as outputPath to generate them dynamically
     outputPath = (
-      typeof config.outputPath === 'function' ? config.outputPath(url) : config.outputPath
+      typeof options.outputPath === 'function' ? options.outputPath(url) : options.outputPath
     );
   }
 
   const filePath = this.resourcePath;
-  if (config.useRelativePath) {
-    const issuerContext = this._module && this._module.issuer
-      && this._module.issuer.context || context; // eslint-disable-line no-mixed-operators
+
+  if (options.useRelativePath) {
+    const issuerContext = (this._module && this._module.issuer
+      && this._module.issuer.context) || context;
+
     const relativeUrl = issuerContext && path.relative(issuerContext, filePath).split(path.sep).join('/');
+
     const relativePath = relativeUrl && `${path.dirname(relativeUrl)}/`;
-    if (~relativePath.indexOf('../')) { // eslint-disable-line no-bitwise
+    // eslint-disable-next-line no-bitwise
+    if (~relativePath.indexOf('../')) {
       outputPath = path.posix.join(outputPath, relativePath, url);
     } else {
       outputPath = relativePath + url;
     }
+
     url = relativePath + url;
-  } else if (config.outputPath) {
+  } else if (options.outputPath) {
     // support functions as outputPath to generate them dynamically
-    outputPath = (typeof config.outputPath === 'function' ? config.outputPath(url) : config.outputPath + url);
+    outputPath = typeof options.outputPath === 'function' ? options.outputPath(url) : options.outputPath + url;
+
     url = outputPath;
   } else {
     outputPath = url;
   }
 
   let publicPath = `__webpack_public_path__ + ${JSON.stringify(url)}`;
-  if (config.publicPath !== undefined) {
+
+  if (options.publicPath !== undefined) {
     // support functions as publicPath to generate them dynamically
     publicPath = JSON.stringify(
-      typeof config.publicPath === 'function' ? config.publicPath(url) : config.publicPath + url,
+      typeof options.publicPath === 'function' ? options.publicPath(url) : options.publicPath + url,
     );
   }
 
-  if (query.emitFile === undefined || query.emitFile) {
+  if (options.emitFile === undefined || options.emitFile) {
     this.emitFile(outputPath, content);
   }
 

src/options.json

@@ -0,0 +1,21 @@
+{
+  "type": "object",
+  "properties": {
+    "name": {
+      "type": "string"
+    },
+    "regExp": {},
+    "context": {
+      "type": "string"
+    },
+    "publicPath": {},
+    "outputPath": {},
+    "useRelativePath": {
+      "type": "boolean"
+    },
+    "emitFile": {
+      "type": "boolean"
+    }
+  },
+  "additionalProperties": false
+}

test/Errors.test.js

@@ -0,0 +1,17 @@
+import loader from '../src';
+
+describe('Errors', () => {
+  test('Validation Error', () => {
+    const err = () => loader.call({ query: { name: 1 }, emitFile: true });
+
+    expect(err).toThrow();
+    expect(err).toThrowErrorMatchingSnapshot();
+  });
+
+  test('Loader Error', () => {
+    const err = () => loader.call({ emitFile: false });
+
+    expect(err).toThrow();
+    expect(err).toThrowErrorMatchingSnapshot();
+  });
+});

test/__snapshots__/Errors.test.js.snap

@@ -0,0 +1,16 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Errors Loader Error 1`] = `
+"File Loader
+
+emitFile is required from module system"
+`;
+
+exports[`Errors Validation Error 1`] = `
+"Validation Error
+
+File Loader Invalid Options
+
+options.name should be string
+"
+`;

test/optional-file-emission.test.js → test/emitFile.test.js

@@ -1,18 +1,21 @@
-import fileLoader from '../src';
+import loader from '../src';
 
 const run = function run(resourcePath, query, content = new Buffer('1234')) {
   let result = false;
+
   const context = {
     resourcePath,
-    query: `?${query}`,
+    query: `?${query || ''}`,
     options: {
       context: '/this/is/the/context',
     },
     emitFile() {
       result = true;
     },
   };
-  fileLoader.call(context, content);
+
+  loader.call(context, content);
+
   return result;
 };
 

test/correct-filename.test.js → test/loader.test.js

@@ -1,12 +1,12 @@
 /* eslint-disable no-useless-escape, no-unused-vars */
-import fileLoader from '../src';
+import loader from '../src';
 
 const run = function run(resourcePath, query, content = new Buffer('1234')) {
   let file = null;
 
   const context = {
     resourcePath,
-    query: `?${query}`,
+    query: `?${query || ''}`,
     options: {
       context: '/this/is/the/context',
     },
@@ -16,7 +16,7 @@ const run = function run(resourcePath, query, content = new Buffer('1234')) {
     },
   };
 
-  const result = fileLoader.call(context, content);
+  const result = loader.call(context, content);
 
   return {
     file,
@@ -29,8 +29,8 @@ function runWithOptions(resourcePath, options, content = new Buffer('1234')) {
 
   const context = {
     resourcePath,
+    query: options,
     options: {
-      fileLoader: options,
       context: '/this/is/the/context',
     },
     emitFile(url, content2) {
@@ -39,7 +39,7 @@ function runWithOptions(resourcePath, options, content = new Buffer('1234')) {
     },
   };
 
-  const result = fileLoader.call(context, content);
+  const result = loader.call(context, content);
 
   return {
     file,
@@ -57,6 +57,7 @@ describe('correct-filename', () => {
     test('81dc9bdb52d04dc20036dbd8313ed055.txt', 'file.txt', '');
     test('81dc9bdb52d04dc20036dbd8313ed055.bin', '', '');
   });
+
   it('should process name correctly', () => {
     test('file.txt', '/file.txt', 'name=[name].[ext]');
     test('file.png', '/file.png', 'name=[name].[ext]');
@@ -71,9 +72,11 @@ describe('correct-filename', () => {
     test('_/_/dir/sub/file.txt', '/this/is/dir/sub/file.txt', 'name=[path][name].[ext]');
     test('dir/sub/file.txt', '/this/is/dir/sub/file.txt', 'name=[path][name].[ext]&context=/this/is');
   });
+
   it('should process hash correctly', () => {
     test('d93591bdf7860e1e4ee2fca799911215.txt', '/file.txt', '', new Buffer('4321'));
   });
+
   it('should process hash options correctly', () => {
     test('81dc9.txt', '/file.txt', 'name=[hash:5].[ext]');
     test('d4045.txt', '/file.txt', 'name=[sha512:hash:5].[ext]');
@@ -90,11 +93,13 @@ describe('publicPath option', () => {
       'export default "http://cdn/81dc9bdb52d04dc20036dbd8313ed055.txt";',
     );
   });
+
   it('should override public path when given empty string', () => {
     expect(run('/file.txt', 'publicPath=').result).toEqual(
       'export default "81dc9bdb52d04dc20036dbd8313ed055.txt";',
     );
   });
+
   it('should use webpack public path when not set', () => {
     expect(run('/file.txt').result).toEqual(
       'export default __webpack_public_path__ + "81dc9bdb52d04dc20036dbd8313ed055.txt";',
@@ -107,12 +112,15 @@ describe('useRelativePath option', () => {
     expect(run('/this/is/the/context/file.txt', 'useRelativePath=true').result).toEqual(
       'export default __webpack_public_path__ + \"./81dc9bdb52d04dc20036dbd8313ed055.txt\";',
     );
+
     expect(run('/this/is/file.txt', 'useRelativePath=true').result).toEqual(
       'export default __webpack_public_path__ + \"../../81dc9bdb52d04dc20036dbd8313ed055.txt\";',
     );
+
     expect(run('/this/file.txt', 'context=/this/is/the/&useRelativePath=true').result).toEqual(
       'export default __webpack_public_path__ + \"../../81dc9bdb52d04dc20036dbd8313ed055.txt\";',
     );
+
     expect(run('/this/file.txt', 'context=/&useRelativePath=true').result).toEqual(
       'export default __webpack_public_path__ + \"this/81dc9bdb52d04dc20036dbd8313ed055.txt\";',
     );
@@ -121,20 +129,23 @@ describe('useRelativePath option', () => {
 
 describe('outputPath function', () => {
   it('should be supported', () => {
-    const outputFunc = value => '/path/set/by/func';
     const options = {};
-    options.outputPath = outputFunc;
-    expect(runWithOptions('/this/is/the/context/file.txt', options).result).toEqual(
-      'export default __webpack_public_path__ + \"/path/set/by/func\";',
-    );
+    options.outputPath = value => '/path/set/by/func';
+
+    expect(runWithOptions('/this/is/the/context/file.txt', options).result)
+      .toEqual(
+        'export default __webpack_public_path__ + \"/path/set/by/func\";',
+      );
   });
+
   it('should be ignored if you set useRelativePath', () => {
-    const outputFunc = value => '/path/set/by/func';
     const options = {};
-    options.outputPath = outputFunc;
+    options.outputPath = value => '/path/set/by/func';
     options.useRelativePath = true;
-    expect(runWithOptions('/this/is/the/context/file.txt', options).result).toEqual(
-      'export default __webpack_public_path__ + \"./81dc9bdb52d04dc20036dbd8313ed055.txt\";',
-    );
+
+    expect(runWithOptions('/this/is/the/context/file.txt', options).result)
+      .toEqual(
+        'export default __webpack_public_path__ + \"./81dc9bdb52d04dc20036dbd8313ed055.txt\";',
+      );
   });
 });