Switched from npm to Yarn. Closed #3012.

.travis.yml

@@ -1,10 +1,8 @@
 language: python
 sudo: false
 cache:
-  directories:
+  pip: true
-    - node_modules
+  yarn: true
-    - $HOME/virtualenv/python$TRAVIS_PYTHON_VERSION/lib/python$TRAVIS_PYTHON_VERSION/site-packages/
-    - $HOME/virtualenv/python$TRAVIS_PYTHON_VERSION/bin/
 python:
   - "3.4"
   - "3.5"
@@ -13,11 +11,13 @@ env:
   - TRAVIS_NODE_VERSION="4"
 before_install:
   - nvm install $TRAVIS_NODE_VERSION
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - export PATH="$HOME/.yarn/bin:$PATH"
 install:
-  - pip install --upgrade setuptools
+  - pip install --upgrade setuptools pip
   - pip install --upgrade --requirement requirements.txt
   - pip freeze
-  - npm install
+  - yarn
   - node_modules/.bin/gulp --production
 script:
   - flake8 openslides tests

CHANGELOG

@@ -46,6 +46,9 @@ Core:
 General:
 - Several bugfixes and minor improvements.
 
+Other:
+- Switched from npm to Yarn.
+
 
 Version 2.1.1 (2017-04-05)
 ==========================

DEVELOPMENT.rst

@@ -16,14 +16,18 @@ a. Check requirements
 '''''''''''''''''''''
 
 Make sure that you have installed `Python (>= 3.4) <https://www.python.org/>`_,
-`Node.js (>=4.x) <https://nodejs.org/>`_, `npm - Node Package Manager (>=3.x)
+`Node.js (>=4.x) <https://nodejs.org/>`_, `Yarn <https://yarnpkg.com/>`_ and
-<https://npmjs.org/>`_ and `Git <http://git-scm.com/>`_ on your system. You also
+`Git <http://git-scm.com/>`_ on your system. You also need build-essential
-need build-essential packages and header files and a static library for Python.
+packages and header files and a static library for Python.
 
-For Ubuntu 16.04 e. g. run::
+For Ubuntu 16.04 e. g. follow `Yarn installation instructions
+<https://yarnpkg.com/en/docs/install>`_ and run::
 
     $ sudo apt-get install git nodejs nodejs-legacy npm build-essential python3-dev
 
+*Note: For Ubuntu 14.04 you have to update Node.js before. The distribution
+version is 0.10.25 which is not sufficient.*
+
 
 b. Get OpenSlides source code
 '''''''''''''''''''''''''''''
@@ -49,9 +53,9 @@ Install all required Python packages::
 
     $ pip install --requirement requirements.txt
 
-Install all NPM and Bower packages and run several JavaScript build tasks::
+Install all Node.js and Bower packages and run several JavaScript build tasks::
 
-    $ npm install
+    $ yarn
 
 Optional: To enhance performance run Gulp in production mode::
 

gulpfile.js

@@ -12,10 +12,6 @@
  * for production mode.
  */
 
-// TODO: Remove the next line when support for Node 0.10.x is dropped.
-// See https://github.com/postcss/postcss#nodejs-010-and-the-promise-api
-require('es6-promise').polyfill();
-
 var argv = require('yargs').argv,
     gulp = require('gulp'),
     concat = require('gulp-concat'),
@@ -26,7 +22,6 @@ var argv = require('yargs').argv,
     jshint = require('gulp-jshint'),
     mainBowerFiles = require('main-bower-files'),
     path = require('path'),
-    rename = require('gulp-rename'),
     sourcemaps = require('gulp-sourcemaps'),
     templateCache = require('gulp-angular-templatecache'),
     through = require('through2'),

package.json

@@ -5,31 +5,27 @@
     "prepublish": "bower install && gulp"
   },
   "devDependencies": {
-    "angular-mocks": "~1.5.7",
+    "angular-mocks": "~1.5.11",
-    "bower": "~1.7.2",
+    "bower": "^1.8.0",
-    "es6-promise": "~3.0.2",
+    "gulp": "^3.9.1",
-    "gulp": "~3.9.0",
+    "gulp-angular-gettext": "^2.2.0",
-    "gulp-angular-gettext": "~2.1.0",
     "gulp-angular-templatecache": "^2.0.0",
-    "gulp-concat": "~2.6.0",
+    "gulp-concat": "^2.6.1",
-    "gulp-cssnano": "~2.1.0",
+    "gulp-cssnano": "^2.1.2",
-    "gulp-if": "~2.0.0",
+    "gulp-if": "^2.0.2",
-    "gulp-inject-string": "~1.1.0",
+    "gulp-inject-string": "^1.1.0",
-    "gulp-jshint": "~2.0.0",
+    "gulp-jshint": "^2.0.4",
-    "gulp-rename": "~1.2.2",
+    "gulp-sourcemaps": "^2.5.0",
-    "gulp-sourcemaps": "~1.6.0",
+    "gulp-uglify": "^2.1.2",
-    "gulp-uglify": "~1.5.2",
+    "jasmine-core": "^2.5.2",
-    "jasmine": "~2.4.1",
+    "jshint": "^2.9.4",
-    "jshint": "~2.9.2",
+    "karma": "^1.5.0",
-    "karma": "~1.1.0",
+    "karma-chrome-launcher": "^2.0.0",
-    "karma-chrome-launcher": "~1.0.1",
+    "karma-jasmine": "^1.1.0",
-    "karma-phantomjs-launcher": "~1.0.0",
+    "karma-phantomjs-launcher": "^1.0.4",
-    "karma-jasmine": "~1.0.2",
+    "main-bower-files": "^2.13.1",
-    "main-bower-files": "~2.11.1",
+    "sprintf-js": "^1.0.3",
-    "phantomjs-prebuilt": "~2.1.14",
+    "through2": "^2.0.3",
-    "po2json": "~0.4.1",
+    "yargs": "^7.0.2"
-    "sprintf-js": "~1.0.3",
-    "through2": "~2.0.0",
-    "yargs": "~3.32.0"
   }
 }