use workspaces (gatsbyjs#2308)

* use workspaces

* Update ignore file

Author: jquense

.travis.yml

@@ -6,9 +6,12 @@ node_js:
 os: [linux]
 dist: trusty
 sudo: required
+cache:
+  yarn: true
 
 before_install:
-  - npm i -g yarn@latest
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - export PATH=$HOME/.yarn/bin:$PATH
 
 install:
   - yarn run bootstrap

CONTRIBUTING.md

@@ -18,6 +18,7 @@ lerna and yarn to configure the repository for active development.
 You can install the latest version of Gatsby by following these steps:
 
 * Clone the repo, navigate to its directory.
+* ensure you have the latest version of yarn installed (>= 1.0.2) https://yarnpkg.com/en/docs/install
 * Install dependencies using `yarn run bootstrap` in the root of the repo.
 
 The usual contributing steps are:

lerna.json

@@ -4,6 +4,6 @@
   "packages": [
     "packages/*"
   ],
-  "hoist": true,
-  "version": "independent"
+  "version": "independent",
+  "useWorkspaces": true
 }

package.json

@@ -36,6 +36,9 @@
     "rimraf": "^2.6.1"
   },
   "private": true,
+  "engines": {
+    "yarn": "^1.0.2"
+  },
   "scripts": {
     "check-versions": "babel-node scripts/check-versions.js",
     "format": "npm run format-packages && npm run format-cache-dir && npm run format-www && npm run format-examples && npm run format-scripts",
@@ -48,7 +51,7 @@
     "lint": "npm run check-versions && eslint --ext .js,.jsx --ignore-path .gitignore .",
     "lint:flow": "babel-node scripts/flow-check.js",
     "plop": "plop",
-    "bootstrap": "yarn && npm run check-versions && lerna bootstrap",
+    "bootstrap": "yarn && npm run check-versions && lerna run prepublish",
     "publish": "lerna publish",
     "publish-canary": "lerna publish --canary --yes",
     "publish-next": "lerna publish --npm-tag=next",
@@ -58,5 +61,8 @@
     "test:watch": "jest --watch",
     "test_bkup": "npm run lint && npm run test-node && npm run test-integration",
     "watch": "lerna run watch --no-sort --stream --concurrency 999"
-  }
+  },
+  "workspaces": [
+    "packages/*"
+  ]
 }

packages/gatsby-link/package.json

@@ -17,7 +17,8 @@
   "license": "MIT",
   "devDependencies": {
     "babel-cli": "^6.26.0",
-    "cross-env": "^5.0.5"
+    "cross-env": "^5.0.5",
+    "react-router-dom": "^4.2.2"
   },
   "dependencies": {
     "babel-runtime": "^6.26.0",

packages/gatsby-source-filesystem/.gitignore

@@ -1,3 +1,2 @@
 /*.js
-!index.js
 yarn.lock