Remove gm dependency and update tests.

.gitlab-ci.yml

@@ -10,7 +10,7 @@ test:
   stage: test
   before_script:
     - npm install
-    - node test/fixtures/mongo-user.js test/fixtures/mongo-file.js
+    - npm run init
   script:
     - npm test
   tags:
@@ -25,4 +25,3 @@ cache:
   untracked: true
   paths:
     - node_modules
-    - web/public/jspm_packages

circle.yml

@@ -1,16 +0,0 @@
-machine:
-  node:
-    version: iojs-3.2.0
-
-test:
-  pre:
-    - mongo hostr test/fixtures/mongo-user.js test/fixtures/mongo-file.js
-  override:
-    - npm run cover
-
-dependencies:
-  cache_directories:
-    - node_modules
-    - web/public/jspm_packages
-  post:
-    - npm run jspm

lib/resize.js

@@ -1,10 +1,33 @@
 import debugname from 'debug';
 const debug = debugname('hostr-api:resize');
-import gm from 'gm';
+import lwip from 'lwip';
+import imageType from 'image-type';
+
+const supported = ['jpg', 'png', 'gif'];
 
 export default function(input, size) {
   debug('Resizing');
-  const image = gm(input);
 
-  return image.resize(size.width, size.height, '>').stream();
+  const type = imageType(input);
+
+  if (!type.ext || supported.indexOf(type.ext) < 0) {
+    throw new Error('Not a supported image.');
+  }
+
+  return new Promise((resolve, reject) => {
+    lwip.open(input, type.ext, (errIn, image) => {
+      if (errIn) {
+        return reject(errIn);
+      }
+      image.cover(size.width, size.height, (errOut, resized) => {
+        if (errOut) {
+          return reject(errOut);
+        }
+
+        resized.toBuffer(type.ext, (errBuf, buffer) => {
+          resolve(buffer);
+        });
+      });
+    });
+  });
 }

package.json

@@ -16,7 +16,7 @@
     "init": "node -r babel/register -e \"require('./lib/storage')();\"",
     "jspm": "jspm install",
     "start": "npm run build && node -r babel/register app.js",
-    "test": "npm run test-seed && mocha -r babel/register test/**/*.spec.js",
+    "test": "npm run test-seed && mocha -r babel/register test/**/*.spec.js && mocha -r babel/register -r co-mocha test/unit/image-resize.spec.js",
     "test-seed": "node test/fixtures/mongo-user.js && node test/fixtures/mongo-file.js",
     "watch": "parallelshell \"npm run watch-js\" \"npm run watch-sass\" \"npm run watch-server\"",
     "watch-js": "babel -Dw -m system -d web/public/build web/public/src",
@@ -34,8 +34,9 @@
     "debug": "~2.2.0",
     "ejs": "~2.3.2",
     "form-data": "^1.0.0-rc3",
-    "gm": "~1.18.1",
     "http-errors": "~1.3.1",
+    "image-size": "^0.5.0",
+    "image-type": "^2.1.0",
     "jspm": "~0.16.0",
     "kcors": "~1.0.1",
     "koa": "~1.0.0",
@@ -52,6 +53,7 @@
     "koa-statsd": "~0.0.2",
     "koa-views": "~3.1.0",
     "koa-websocket": "~1.1.0",
+    "lwip": "0.0.9",
     "mime-types": "~2.1.5",
     "moment": "~2.10.6",
     "mongodb-promisified": "~1.0.3",
@@ -69,6 +71,7 @@
   },
   "devDependencies": {
     "babel-eslint": "^4.0.10",
+    "co-mocha": "^1.1.2",
     "eslint": "~1.3.0",
     "eslint-config-airbnb": "0.0.8",
     "istanbul": "~0.3.18",

test/unit/image-resize.spec.js

@@ -3,14 +3,33 @@ import path from 'path';
 import assert from 'assert';
 import tmp from 'tmp';
 import resize from '../../lib/resize';
+import imageType from 'image-type';
 
-const file = fs.readFileSync(path.join(__dirname, '..', 'fixtures', 'utah-arches.jpg'));
-
-describe('Image resizing', function() {
-  it('should resize an image', function*() {
+describe('Image resizing', () => {
+  it('should resize a jpg', function* resizeImage() {
+    const file = fs.readFileSync(path.join(__dirname, '..', 'fixtures', 'utah-arches.jpg'));
     const imageBuffer = yield resize(file, {height: 100, width: 100});
-    const tmpFile = tmp.tmpNameSync();
-    fs.writeFileSync(tmpFile + '.jpg', imageBuffer);
-    assert(tmpFile);
+    const tmpFile = tmp.tmpNameSync() + '.jpg';
+    fs.writeFileSync(tmpFile, imageBuffer);
+    const type = imageType(fs.readFileSync(tmpFile));
+    assert(type.ext === 'jpg');
+  });
+
+  it('should resize a png', function* resizeImage() {
+    const file = fs.readFileSync(path.join(__dirname, '..', 'fixtures', 'app-icon.png'));
+    const imageBuffer = yield resize(file, {height: 100, width: 100});
+    const tmpFile = tmp.tmpNameSync() + '.png';
+    fs.writeFileSync(tmpFile, imageBuffer);
+    const type = imageType(fs.readFileSync(tmpFile));
+    assert(type.ext === 'png');
+  });
+
+  it('should resize a gif', function* resizeImage() {
+    const file = fs.readFileSync(path.join(__dirname, '..', 'fixtures', 'kim.gif'));
+    const imageBuffer = yield resize(file, {height: 100, width: 100});
+    const tmpFile = tmp.tmpNameSync() + '.gif';
+    fs.writeFileSync(tmpFile, imageBuffer);
+    const type = imageType(fs.readFileSync(tmpFile));
+    assert(type.ext === 'gif');
   });
 });

test/web/file.spec.js

@@ -1,5 +1,5 @@
 import assert from 'assert';
-import gm from 'gm';
+import sizeOf from 'image-size';
 import { agent } from 'supertest';
 import app from '../../app';
 
@@ -46,9 +46,7 @@ describe('hostr-web file', function() {
         .expect(200)
         .expect('Content-type', 'image/jpeg')
         .expect(function(response) {
-          gm(response.body).size((err, size) => {
-            assert(size.width === 150);
-          });
+          assert(sizeOf(response.body).width === 150);
         })
         .end(done);
     });
@@ -61,9 +59,7 @@ describe('hostr-web file', function() {
         .expect(200)
         .expect('Content-type', 'image/jpeg')
         .expect(function(response) {
-          gm(response.body).size((err, size) => {
-            assert(size.width === 970);
-          });
+          assert(sizeOf(response.body).width === 970);
         })
         .end(done);
     });