chore(yarn): replace npm with yarn

.github/CONTRIBUTING.md

@@ -52,14 +52,16 @@ v6.2.1
 
 ### Fork, Clone & Install
 
-Start by [forking stardust][12] to your GitHub account.  Then clone your fork and install dependencies:
+Start by [forking Semantic UI React][12] to your GitHub account.  Then clone your fork and install dependencies:
 
 ```sh
 git clone git@github.com:<your-user>/Semantic-UI-React.git
 cd Semantic-UI-React
-npm install
+yarn
 ```
 
+>Note, we use `yarn` because `npm` has unfortunately become unreliable.  Get it [here][16].
+
 Add our repo as a git remote so you can pull/rebase your fork with our latest updates:
 
 ```
@@ -72,25 +74,24 @@ Please follow the [Angular Git Commit Guidelines][8] format.
 
 ### Commands
 
->This list is not updated, you should run `npm run` to see all scripts.
+>This list is not updated, you should run `yarn run` to see all scripts.
 
 ```sh
-npm start                     // run doc site
-npm run start:local-modules   // run offline (slower builds)
+yarn start                 // run doc site
 
-npm test                      // test once
-npm run test:watch            // test on file change
+yarn test                  // test once
+yarn test:watch            // test on file change
 
-npm run build                 // build everything
-npm run build:dist            // build dist
-npm run build:docs            // build docs
-npm run build:docs-toc        // build toc for markdown files
+yarn build                 // build everything
+yarn build:dist            // build dist
+yarn build:docs            // build docs
+yarn build:docs-toc        // build toc for markdown files
 
-npm run deploy:docs           // deploy gh-pages doc site
+yarn deploy:docs           // deploy gh-pages doc site
 
-npm run lint                  // lint once
-npm run lint:fix              // lint and attempt to fix
-npm run lint:watch            // lint on file change
+yarn lint                  // lint once
+yarn lint:fix              // lint and attempt to fix
+yarn lint:watch            // lint on file change
 ```
 
 ## Workflow
@@ -371,7 +372,7 @@ See [`src/factories`][13] for special methods to convert props values into React
 
 ## Testing
 
-Run tests during development with `npm run test:watch` to re-run tests on file changes.
+Run tests during development with `yarn test:watch` to re-run tests on file changes.
 
 ### Coverage
 
@@ -494,7 +495,7 @@ Our docs are generated from doc block comments, `propTypes`, and hand written ex
 Developing against the doc site is a good way to try your component as you build it. Run the doc site with:
 
 ```sh
-npm start
+yarn start
 ```
 
 ### Components
@@ -571,3 +572,4 @@ Adding documentation for new components is a bit tedious.  The best way to do th
 [13]: https://github.com/Semantic-Org/Semantic-UI-React/blob/master/src/factories
 [14]: https://github.com/Semantic-Org/Semantic-UI-React/pull/335#issuecomment-238960895
 [15]: https://github.com/Semantic-Org/Semantic-UI-React/issues/607
+[16]: https://yarnpkg.com/en/docs/getting-started

.gitignore

@@ -1,13 +1,13 @@
-npm-debug.log*
-node_modules/
-bower_components/
-coverage/
-dist/
-docs/build/
-docs/app/docgenInfo.json
-dll/
+*.log*
+*.iml
 
 .DS_Store
 .idea/
+.yarn-cache/
 
-*.iml
+coverage/
+dist/
+docs/app/docgenInfo.json
+docs/build/
+dll/
+node_modules/

README.md

@@ -143,15 +143,15 @@ Any other issue labeled [`help wanted`][4] is ready for a PR.
 On the latest clean `master`:
 
 ```sh
-npm run release:major
-npm run release:minor
-npm run release:patch
+yarn release:major
+yarn release:minor
+yarn release:patch
 ```
 
 Deploy the docs:
 
 ```sh
-npm run deploy:docs
+yarn deploy:docs
 ```
 
 Update the changelog (requires [github_changelog_generator][15]):

docs/app/Views/Usage.js

@@ -33,6 +33,7 @@ const Usage = () => (
         The Semantic UI React package can be installed via NPM:
       </p>
       <Segment>
+        <pre>$ yarn add {pkg.name}</pre>
         <pre>$ npm install {pkg.name} --save</pre>
       </Segment>
       <p>
@@ -131,9 +132,8 @@ const Usage = () => (
         provided <a href={`${semanticUIDocsURL}usage/theming.html`}>here</a>.
       </p>
       <Segment>
-        <pre>
-          $ npm install semantic-ui --save-dev
-        </pre>
+        <pre>$ yarn add semantic-ui --dev</pre>
+        <pre>$ npm install semantic-ui --save-dev</pre>
       </Segment>
       <p>
         After building the project with Gulp, you'll need to include the minified CSS file

examples/webpack1/.gitignore

@@ -1 +1,2 @@
+.yarn-cache/
 node_modules/

examples/webpack1/package.json

@@ -4,10 +4,10 @@
   "description": "Get started with Semantic UI React and Webpack 1",
   "main": "index.js",
   "scripts": {
-    "analyze": "cross-env ANALYZE_ENV=true npm run build",
-    "analyze:production": "cross-env ANALYZE_ENV=true npm run build:production",
+    "analyze": "cross-env ANALYZE_ENV=true yarn build",
+    "analyze:production": "cross-env ANALYZE_ENV=true yarn build:production",
     "build": "webpack",
-    "build:production": "cross-env NODE_ENV=production npm run build"
+    "build:production": "cross-env NODE_ENV=production yarn build"
   },
   "author": "Alexander Fedyashov <a@fedyashov.com>",
   "license": "MIT",

examples/webpack2/.gitignore

@@ -1 +1,2 @@
+.yarn-cache/
 node_modules/

examples/webpack2/package.json

@@ -4,10 +4,10 @@
   "description": "Get started with Semantic UI React and Webpack 2",
   "main": "index.js",
   "scripts": {
-    "analyze": "cross-env ANALYZE_ENV=true npm run build",
-    "analyze:production": "cross-env ANALYZE_ENV=true npm run build:production",
+    "analyze": "cross-env ANALYZE_ENV=true yarn build",
+    "analyze:production": "cross-env ANALYZE_ENV=true yarn build:production",
     "build": "webpack",
-    "build:production": "cross-env NODE_ENV=production npm run build"
+    "build:production": "cross-env NODE_ENV=production yarn build"
   },
   "author": "Alexander Fedyashov <a@fedyashov.com>",
   "license": "MIT",

package.json

@@ -12,36 +12,36 @@
   ],
   "scripts": {
     "docs": "gulp docs",
-    "build": "npm run build:commonjs && npm run build:es && npm run build:umd && npm run build:docs",
+    "build": "yarn build:commonjs && yarn build:es && yarn build:umd && yarn build:docs",
     "prebuild:commonjs": "rimraf dist/commonjs",
-    "build:commonjs": "cross-env NODE_ENV=build babel src -d dist/commonjs && npm run tsd",
+    "build:commonjs": "cross-env NODE_ENV=build babel src -d dist/commonjs && yarn tsd",
     "prebuild:es": "rimraf dist/es",
     "build:es": "cross-env NODE_ENV=build-es babel src -d dist/es",
-    "prebuild:docs": "npm run build:docs-toc",
+    "prebuild:docs": "yarn build:docs-toc",
     "build:dll": "gulp dll",
     "build:docs": "gulp build:docs",
     "build:umd": "cross-env NODE_ENV=build gulp umd",
     "build:docs-toc": "doctoc ./.github/CONTRIBUTING.md --github --maxlevel 4",
     "build:docs-cname": "echo react.semantic-ui.com > docs/build/CNAME",
-    "predeploy:docs": "cross-env NODE_ENV=production npm run build:docs && npm run build:docs-cname",
+    "predeploy:docs": "cross-env NODE_ENV=production yarn build:docs && yarn build:docs-cname",
     "deploy:docs": "gh-pages -d docs/build -m 'deploy docs [ci skip]'",
     "lint": "cross-env NODE_ENV=production eslint .",
-    "lint:fix": "npm run lint -- --fix",
-    "prerelease": "npm run lint -s && npm run tsd:lint -s && npm test -s && cross-env NODE_ENV=production npm run build",
-    "postrelease": "NODE_ENV=production npm run deploy:docs",
-    "release:major": "npm run prerelease && ta-script npm/release.sh major",
-    "release:minor": "npm run prerelease && ta-script npm/release.sh minor",
-    "release:patch": "npm run prerelease && ta-script npm/release.sh patch",
-    "prestart": "npm run satisfied -s -- --fix",
-    "start": "npm run docs",
+    "lint:fix": "yarn lint -- --fix",
+    "prerelease": "yarn lint && yarn tsd:lint && npm test && cross-env NODE_ENV=production yarn build",
+    "postrelease": "NODE_ENV=production yarn deploy:docs",
+    "release:major": "yarn prerelease && ta-script npm/release.sh major",
+    "release:minor": "yarn prerelease && ta-script npm/release.sh minor",
+    "release:patch": "yarn prerelease && ta-script npm/release.sh patch",
+    "prestart": "yarn satisfied -- --fix yarn",
+    "start": "yarn docs",
     "satisfied": "satisfied --skip-invalid",
-    "pretest": "npm run satisfied -s && npm run build:dll",
+    "pretest": "yarn satisfied && yarn build:dll",
     "test": "cross-env NODE_ENV=test node -r babel-register ./node_modules/karma/bin/karma start karma.conf.babel.js",
-    "test:watch": "npm run test --silent -- --no-single-run",
+    "test:watch": "yarn test -- --no-single-run",
     "tsd": "gulp tsd",
     "tsd:lint": "tslint './index.d.ts' './src/**/*.d.ts' './test/typings.d.ts'",
-    "tsd:lint:fix": "npm run -s tsd:lint -- --fix",
-    "tsd:test": "npm run tsd && tsc -p ./"
+    "tsd:lint:fix": "yarn tsd:lint -- --fix",
+    "tsd:test": "yarn tsd && tsc -p ./"
   },
   "repository": {
     "type": "git",