Add prettier-ci npm script (#3132)

.prettierignore

@@ -13,6 +13,7 @@ LICENSE
 /locale/
 /node_modules/
 /tests/fixtures/
+/coverage/
 
 # white-list files we want to process
 !*.js

.prettierrc

@@ -15,6 +15,12 @@
       "options": {
         "parser": "babel"
       }
+    },
+    {
+      "files": "*.md",
+      "options": {
+        "proseWrap": "preserve"
+      }
     }
   ]
 }

.travis.yml

@@ -9,6 +9,7 @@ script:
   - npm run lint
   # run integration tests using an addons-linter binary in a production-like environment
   - npm run test-integration:production
+  - npm run prettier-ci
 notifications:
   slack:
     if: branch = master

README.md

@@ -151,6 +151,7 @@ Dependencies are automatically kept up-to-date using [renovatebot](https://renov
 | npm run test-coverage-once      | Runs the tests once with coverage                                                |
 | npm run test-integration-linter | Runs our integration test-suite                                                  |
 | npm run prettier                | Automatically format the whole code-base with Prettier                           |
+| npm run prettier-ci             | Run [Prettier][] and fail if some code has been changed without being formatted  |
 | npm run prettier-dev            | Automatically compare and format modified source files against the master branch |
 
 ### Building
@@ -221,3 +222,4 @@ After merging the PR, [create a new release][new release] with the same tag name
 
 [new release]: https://github.com/mozilla/addons-linter/releases/new
 [semver]: http://semver.org/
+[prettier]: https://prettier.io/

docs/rules.md

@@ -7,7 +7,7 @@ Rules are sorted by severity.
 ## JavaScript
 
 | Message code                | Severity | Description                                                                            |
-| -------------------------- | -------- | -------------------------------------------------------------------------------------- |
+| --------------------------- | -------- | -------------------------------------------------------------------------------------- |
 | `KNOWN_LIBRARY`             | notice   | This is version of a JS library is known and generally accepted.                       |
 | `OPENDIALOG_NONLIT_URI`     | notice   | openDialog called with non-literal parameter.                                          |
 | `EVENT_LISTENER_FOURTH`     | notice   | `addEventListener` called with truthy fourth argument.                                 |
@@ -21,8 +21,8 @@ Rules are sorted by severity.
 | `STORAGE_SYNC`              | warning  | Temporary IDs can cause issues with `storage.sync`.                                    |
 | `STORAGE_MANAGED`           | warning  | Temporary IDs can cause issues with `storage.managed`.                                 |
 | `IDENTITY_GETREDIRECTURL`   | warning  | Temporary IDs can cause issues with `identity.getRedirectURL`.                         |
-| `RUNTIME_ONMESSAGEEXTERNAL`| warning  | Temporary IDs can cause issues with `runtime.onMessageExternal`.                       |
+| `RUNTIME_ONMESSAGEEXTERNAL` | warning  | Temporary IDs can cause issues with `runtime.onMessageExternal`.                       |
-| `RUNTIME_ONCONNECTEXTERNAL`| warning  | Temporary IDs can cause issues with `runtime.onConnectExternal`.                       |
+| `RUNTIME_ONCONNECTEXTERNAL` | warning  | Temporary IDs can cause issues with `runtime.onConnectExternal`.                       |
 | `BANNED_LIBRARY`            | error    | This version of a JS library is banned for security reasons.                           |
 | `INCOMPATIBLE_API`          | warning  | API not compatible with `applications.gecko.strict_min_version`                        |
 | `ANDROID_INCOMPATIBLE_API`  | warning  | API not compatible with Firefox for Android at `applications.gecko.strict_min_version` |

package.json

@@ -23,6 +23,7 @@
     "test-integration:production": "node tests/integration/run-as-production-env.js test-integration tests/integration/addons-linter",
     "lint": "npm run eslint",
     "prettier": "prettier --write '**'",
+    "prettier-ci": "prettier --list-different '**' || (echo '\n\nThis failure means you did not run `npm run prettier-dev` before committing\n\n' && exit 1)",
     "prettier-dev": "pretty-quick --branch master",
     "publish-rules": "scripts/build-rules && cp node_modules/gfm.css/gfm.css docs/html/gfm.css && scripts/publish-rules",
     "gen-contributing-toc": "doctoc CONTRIBUTING.md"