prettier --write '**/*.js'

lib/errors.js

@@ -1,5 +1,5 @@
 const createError = require('createerror');
 
 module.exports = {
-  OutputDimensionsExceeded: createError({ name: 'OutputDimensionsExceeded' })
+  OutputDimensionsExceeded: createError({ name: 'OutputDimensionsExceeded' }),
 };

lib/prepareImproQueryString.js

@@ -6,12 +6,12 @@ const isSupportedEngine = {
   jpegtran: true,
   optipng: true,
   svgfilter: true,
-  inkscape: true
+  inkscape: true,
 };
 
 const resizeOptions = {
   ignoreAspectRatio: true,
-  withoutEnlargement: true
+  withoutEnlargement: true,
 };
 
 const queryStringEngineAndArgsRegex = new RegExp(

lib/processImage.js

@@ -8,7 +8,7 @@ const hijackResponse = require('hijackresponse');
 const prepareImproQueryString = require('./prepareImproQueryString');
 
 const isImageByExtension = {};
-Object.keys(mime._extensions).forEach(contentType => {
+Object.keys(mime._extensions).forEach((contentType) => {
   if (/^image\//.test(contentType)) {
     const extension = mime._extensions[contentType];
     isImageByExtension[extension] = true;
@@ -34,19 +34,19 @@ function reverseIteratorFor(arr) {
   let index = arr.length;
 
   return {
-    next: function() {
+    next: function () {
       index -= 1;
 
       const isEnded = index < 0;
 
       return {
         done: isEnded,
-        value: !isEnded ? arr[index] : undefined
+        value: !isEnded ? arr[index] : undefined,
       };
     },
     [Symbol.iterator]() {
       return this;
-    }
+    },
   };
 }
 
@@ -70,7 +70,7 @@ function toUsedNames(usedEngines) {
   return orderedUsedNames;
 }
 
-module.exports = options => {
+module.exports = (options) => {
   options = options || {};
 
   const engines = pickProperties(
@@ -105,10 +105,10 @@ module.exports = options => {
       if (ifNoneMatch) {
         const validIfNoneMatchTokens = ifNoneMatch
           .split(' ')
-          .filter(etag => /-processimage["-]/.test(etag));
+          .filter((etag) => /-processimage["-]/.test(etag));
         if (validIfNoneMatchTokens.length > 0) {
           req.headers['if-none-match'] = validIfNoneMatchTokens
-            .map(token => token.replace(/-processimage(["-])/, '$1'))
+            .map((token) => token.replace(/-processimage(["-])/, '$1'))
             .join(' ');
         } else {
           delete req.headers['if-none-match'];
@@ -215,7 +215,7 @@ module.exports = options => {
               }
             }
 
-            res.once('error', err => {
+            res.once('error', (err) => {
               // trigger teardown of all pipeline streams
               pipeline.emit(err);
               // respond with an error
@@ -243,7 +243,7 @@ module.exports = options => {
                 sharpCache: options.sharpCache,
                 svgAssetPath: options.root
                   ? Path.resolve(options.root, req.url.substr(1))
-                  : null
+                  : null,
               },
               filterInfosAndTargetFormat.operations
             );
@@ -282,7 +282,7 @@ module.exports = options => {
                   res.end();
                 }
               })
-              .on('readable', function() {
+              .on('readable', function () {
                 if (!hasEnded) {
                   let data;
                   while ((data = this.read())) {
@@ -313,7 +313,7 @@ module.exports = options => {
               filesize:
                 contentLengthHeaderValue &&
                 parseInt(contentLengthHeaderValue, 10),
-              etag: oldETag
+              etag: oldETag,
             };
 
             filterInfosAndTargetFormat = makeFilterInfosAndTargetFormat();
@@ -323,7 +323,7 @@ module.exports = options => {
             }
 
             if (options.secondGuessSourceContentType) {
-              const endOrCloseOrErrorBeforeFirstDataChunkListener = err => {
+              const endOrCloseOrErrorBeforeFirstDataChunkListener = (err) => {
                 if (err) {
                   next(500);
                 } else {
@@ -332,7 +332,7 @@ module.exports = options => {
               };
               res.once('error', endOrCloseOrErrorBeforeFirstDataChunkListener);
               res.once('end', endOrCloseOrErrorBeforeFirstDataChunkListener);
-              res.once('data', firstChunk => {
+              res.once('data', (firstChunk) => {
                 res.removeListener(
                   'end',
                   endOrCloseOrErrorBeforeFirstDataChunkListener

test/browsersync-compat.js

@@ -9,14 +9,14 @@ const serverPort = '9999';
 expect.use(require('unexpected-http')).use(require('unexpected-image'));
 
 describe('browser-sync compatibility', () => {
-  before(done => {
+  before((done) => {
     bs.init(
       {
         port: serverPort,
         server: root,
         open: false,
         logLevel: 'silent',
-        middleware: [processImage({ root })]
+        middleware: [processImage({ root })],
       },
       done
     );
@@ -32,9 +32,9 @@ describe('browser-sync compatibility', () => {
       'to yield response',
       {
         headers: {
-          'Content-Type': 'text/plain; charset=UTF-8'
+          'Content-Type': 'text/plain; charset=UTF-8',
         },
-        body: 'foo\n'
+        body: 'foo\n',
       }
     ));
 
@@ -44,9 +44,9 @@ describe('browser-sync compatibility', () => {
       'to yield response',
       {
         headers: {
-          'Content-Type': 'image/png'
+          'Content-Type': 'image/png',
         },
-        body: expect.it('to have length', 3711)
+        body: expect.it('to have length', 3711),
       }
     ));
 
@@ -56,9 +56,9 @@ describe('browser-sync compatibility', () => {
       'to yield response',
       {
         headers: {
-          'Content-Type': 'image/png'
+          'Content-Type': 'image/png',
         },
-        body: expect.it('to have length', 3711)
+        body: expect.it('to have length', 3711),
       }
     ));
 
@@ -69,24 +69,24 @@ describe('browser-sync compatibility', () => {
       {
         statusCode: 200,
         headers: {
-          'Content-Type': 'image/png'
+          'Content-Type': 'image/png',
         },
-        body: expect.it('to have length', 3711)
+        body: expect.it('to have length', 3711),
       }
-    ).then(context => {
+    ).then((context) => {
       const etag = context.httpResponse.headers.get('ETag');
       return expect(
         {
           url: `GET http://localhost:${serverPort}/ancillaryChunks.png?foo=bar`,
           headers: {
-            'If-None-Match': etag
-          }
+            'If-None-Match': etag,
+          },
         },
         'to yield response',
         {
           statusCode: 304,
           headers: expect.it('to be empty'),
-          body: expect.it('to be', '')
+          body: expect.it('to be', ''),
         }
       );
     }));
@@ -98,19 +98,19 @@ describe('browser-sync compatibility', () => {
       {
         statusCode: 200,
         headers: {
-          'Content-Type': 'image/png'
+          'Content-Type': 'image/png',
         },
         body: expect
           .it('to have metadata satisfying', {
             format: 'PNG',
             size: {
               width: 400,
-              height: 20
-            }
+              height: 20,
+            },
           })
-          .and(body => {
+          .and((body) => {
             expect(body.length, 'to be within', 1, 3711);
-          })
+          }),
       }
     ));
 });