Development

Getting Started

All of these commands require you to run npm install first. To see a full list of the gulp commands, run gulp.

Committing

Please follow the commit message format in CONTRIBUTING.md.

Installing Nightly Version

The latest nightly version can be installed via npm.

1. Run npm install --save ionic-angular@nightly
2. Your package.json file's dependencies will be updated with the nightly version.
3. Restart any watch or serve commands that may be already running.

Building Ionic Source

Run gulp build or gulp watch to watch for changes.

Building & Running e2e Tests

Development

1. Run gulp e2e.watch --folder nav/basic to watch for changes, where nav is the component, and basic is the test name
2. The browser will launch just like when using ionic serve. Make changes to an app in the src directory and the app will rebuild.

Validation

The following commands take longer to run because they use AoT compilation. They should really only be used to validate that our components work with AoT, and fix them if not.

1. Run gulp e2e.prod to bundle all e2e tests.

Flags

• --f | -folder will run the command with a test folder.
• --debug will run the ionic-app-scripts command with debug output printed.

Building & Running API Demos

Development

1. Run gulp demos or gulp demos.watch to watch for changes.
2. Navigate to http://localhost:8000/dist/demos

Validation

The following commands take longer to run because they use AoT compilation. They should really only be used to validate that our components work with AoT, and fix them if not.

1. Run gulp demos.prod to bundle all demos tests. Folder is optional, see the flags section below.
2. Run gulp demos.watchProd with a folder passed to watch a test. Folder is required, see the flags section below.
3. Navigate to http://localhost:8000/dist/demos

Flags

• --f | -folder will run the command with a test folder. For example, gulp demos.watchProd --f=alert will build the test in demos/alert/.
• --debug will run the ionic-app-scripts command with debug output printed.

Building API Docs

1. gulp docs to build the nightly version
2. gulp docs --doc-version=2.0.0 to build a specific API version

Developing against Ionic locally

From ionic directory:

1. npm run link

From your app directory:

1. npm link ionic-angular
2. ionic serve or ionic run or ionic emulate

To remove the linked version of ionic-angular do npm rm ionic-angular, and then reinstall using npm install ionic-angular.

Running Snapshot

Snapshot compares to a base snapshot made on Mac OS with retina screen (2560x1600). It does not work for windows, linux, or non retina macs.

Setup (Mac OS X Only)

1. Install Java JDK: brew cask install java
2. Install Protractor: npm install -g protractor@2.5.1
3. Run webdriver-manager update
4. Export IONIC_SNAPSHOT_KEY (get from someone)

Commands

• gulp snapshot will run the gulp e2e.prod task with AoT compilation.
• gulp snapshot.skipBuild will skip the gulp e2e.prod task with AoT compilation.
• gulp e2e.prod followed by gulp snapshot.skipBuild is considered best practice

Flags

• --f | -folder will run the command with a test folder. For example, gulp snapshot --f=action-sheet/basic will run snapshot for the test at src/components/action-sheet/test/basic.

• --concurrency determines the number of tests to build at a time. By default, 2 tests are built concurrently. If using a quad-core (or more) CPU, it is often beneficial to run with --concurrency 8 for example.

• --dev runs a dev build when building the e2e tests. This build takes much less time than a production build, so it is advisable to use this when doing quick validation.

Errors

If you are having getting an error running snapshot such as SessionNotCreatedError: session not created exception or UnknownError: Connection refused the solution is to download the chromedriver from here: http://chromedriver.storage.googleapis.com/index.html?path=2.24/ and then move it into your protractor/selenium folder

Running webdriver-manager help should show you what directory the webdriver is at under the options. For example, yours may be at /usr/local/lib/node_modules/protractor/selenium or if you use nvm /Users/{username}/.nvm/versions/node/v7.5.0/lib/node_modules/protractor/selenium.

Running Tests

1. gulp validate

Running Sass Linter

Requires Ruby. Skip this step entirely if you are unable to install Ruby.

1. See the Sass Guidelines for editing the Sass.
2. Install the linter: gem install scss_lint
3. Run gulp lint.sass and fix any linter errors.

Running TypeScript Linter

1. Run gulp lint.ts and fix any errors.

Releasing

Releasing Ionic Source

1. Run snapshot & verify all changes are intentional, update master snapshot if so
2. Run gulp release

• Pulls latest from GitHub
• Runs gulp validate
• Builds npm package files into dist
• Updates package.json version
• Removes debug statements
• Updates changelog
• Publishes to npm
• Creates a new tag and release on Github

3. Verify that the changelog changes are accurate and the package.json version is correct (git status && git diff)
4. Commit and push
5. Sit back and have some beer 🍻 (or wine 🍷)

Publish a nightly release

1. Run gulp nightly

• Pulls latest from GitHub
• Runs gulp validate
• Builds npm package files into dist
• Removes debug statements
• Publishes to npm using the nightly tag with the date/time of publish added to the version: 2.0.0-rc.0 results in 2.0.0-rc.0-201610131811

2. npm install ionic-angular@nightly will now install the latest nightly release
3. Run npm view ionic-angular to see the latest nightly release

Releasing Component Demos

Ionic Component demos are automatically compiled and deployed to the ionic staging site on every commit in ionic-preview-app. No action is necessary.

If you'd like to manually update the demos, follow the steps on the preview app for running locally on the site.

Releasing API Demos

Ionic API demos are automatically compiled and deployed to the ionic staging site on every commit. No action is necessary.

If you'd like to manually update the demos, clone the ionic-site repo as a sibling of ionic. From ionic run gulp demos and then gulp docs, and it'll compile and copy the demos to the ionic-site repo, ready for testing.