Tweak package scripts and travis config for code coverage

.travis.yml

@@ -13,8 +13,11 @@ node_js:
 - '0.12'
 - '0.10'
 env:
-  - PKG_CMD="npm"
-  - PKG_CMD="yarn"
+  global:
+    - BABEL_ENV=test
+  matrix:
+    - PKG_CMD="npm"
+    - PKG_CMD="yarn"
 before_install:
   - nvm use $TRAVIS_NODE_VERSION
   - npm set loglevel error
@@ -24,7 +27,7 @@ install:
   - $PKG_CMD install
 script:
   - 'if [ -n "${LINT-}" ]; then $PKG_CMD run lint ; fi'
-  - 'if [ -z "${LINT-}" ]; then $PKG_CMD run ci ; fi'
+  - 'if [ -z "${LINT-}" ]; then $PKG_CMD run test-ci ; fi'
 matrix:
   fast_finish: true
   exclude:
@@ -35,3 +38,5 @@ matrix:
   include:
     - node_js: "node"
       env: LINT=true PKG_CMD="npm"
+
+after_success: 'if [ -z "${LINT-}" ]; then npm run coverage-ci ; fi'

CONTRIBUTING.md

@@ -1,8 +1,8 @@
-## Contributing
+# Contributing
 
-### Adding a new plugin to support (when approved in the next ECMAScript version)
+## Adding a new plugin to support (when approved in the next ECMAScript version)
 
-#### Update [`plugin-features.js`](https://github.com/babel/babel-preset-env/blob/master/data/plugin-features.js)
+### Update [`plugin-features.js`](https://github.com/babel/babel-preset-env/blob/master/data/plugin-features.js)
 
 *Example:*
 
@@ -27,7 +27,7 @@ And add them in this structure:
 },
 ```
 
-#### Update [`built-in-features.js`](https://github.com/babel/babel-preset-env/blob/master/data/built-in-features.js)
+### Update [`built-in-features.js`](https://github.com/babel/babel-preset-env/blob/master/data/built-in-features.js)
 
 *Example:*
 
@@ -51,15 +51,29 @@ const es2017 = {
 }
 ```
 
-#### Update [`plugins.json`](https://github.com/babel/babel-preset-env/blob/master/data/plugins.json)
+### Update [`plugins.json`](https://github.com/babel/babel-preset-env/blob/master/data/plugins.json)
 
 Until `compat-table` is a standalone npm module for data we are using the git url
 
 `"compat-table": "kangax/compat-table#[latest-commit-hash]"`,
 
 So we update and then run `npm run build-data`. If there are no changes, then `plugins.json` will be the same.
 
-### Writing Tests
+## Tests
+
+### Running tests locally
+
+```bash
+npm test
+```
+
+### Checking code coverage locally
+
+```bash
+npm run coverage
+```
+
+### Writing tests
 
 #### General
 

package.json

@@ -10,13 +10,15 @@
   "scripts": {
     "build": "rimraf lib && babel src -d lib",
     "build-data": "node ./scripts/build-data.js",
+    "changelog": "git log `git describe --tags --abbrev=0`..HEAD --pretty=format:' * %s (%an)' | grep -v 'Merge pull request'",
+    "coverage": "BABEL_ENV=test nyc npm run test",
+    "coverage-ci": "nyc report --reporter=json && codecov -f coverage/coverage-final.json",
     "dev": "babel -w src -d lib",
-    "lint": "eslint .",
     "fix": "eslint . --fix",
-    "cov": "BABEL_ENV=test nyc npm run test",
-    "ci": "npm run cov && nyc report --reporter=json && codecov -f coverage/coverage-final.json",
-    "changelog": "git log `git describe --tags --abbrev=0`..HEAD --pretty=format:' * %s (%an)' | grep -v 'Merge pull request'",
-    "test": "npm run build && mocha ./test --compilers js:babel-register -t 10000"
+    "lint": "eslint .",
+    "test": "npm run build && npm run test-only",
+    "test-ci": "nyc npm run test",
+    "test-only": "mocha ./test --compilers js:babel-register -t 10000"
   },
   "dependencies": {
     "babel-plugin-check-es2015-constants": "^6.3.13",
@@ -55,7 +57,7 @@
     "babel-eslint": "^7.1.1",
     "babel-helper-fixtures": "^6.22.0",
     "babel-helper-plugin-test-runner": "^6.18.0",
-    "babel-plugin-istanbul": "^4.0.0",
+    "babel-plugin-istanbul": "^3.1.2",
     "babel-plugin-transform-flow-strip-types": "^6.8.0",
     "babel-preset-es2015": "^6.14.0",
     "babel-register": "^6.14.0",
@@ -91,6 +93,8 @@
   },
   "nyc": {
     "all": true,
-    "include": ["src/*.js"]
+    "include": ["src/*.js"],
+    "instrument": false,
+    "sourceMap": false
   }
 }