Contributing

Thanks for your interest in contributing to tslint-microsoft-contrib! Be sure to read our code of conduct first.

To develop tslint-microsoft-contrib, clone the repository, install dependencies, and run npm test:

git clone git@github.com:Microsoft/tslint-microsoft-contrib.git --config core.autocrlf=input --config core.eol=lf
cd tslint-microsoft-contrib
npm install
npm test

You can create a new rule from a template with the create-rule script:

npm run create-rule

This will prompt you to enter the details of the new rule. Once you're done, it will create a file for the rule implementation (inside src), folder with rule tests (inside test), and will add rule info to README.md.

You should update rule entry in README.md with information about available options, more detailed description, and examples if needed. New rules should have @next placeholder in version column, which will be replaced with proper version during release process.

More information about writing rule tests can be found in TSLint documentation.

Watchers

Two npm scripts can be used to watch files and simplify testing and linting with constant changes.

Use npm start to start watcher that will rebuild rules and Mocha tests.

Use npm run watch:run-tests that will re-run tests (both Mocha and TSLint) and lint code when: files changed in tests, test-data or npm start compiled rules or tests code.

NOTE: It is recommended to wait when npm start will finish initial compilation before starting npm run watch:run-tests (in separate terminal).

Debug code

VS Code

This repo provides pre-configured launch tasks for VS Code debugging rules and tests.

• Pick Run Mocha Tests to debug rules which have Mocha unit tests inside src/tests folder.
• Pick Run TSLint Tests to debug rules that have tests in TSLint format inside tests folder.

Node.js

Starting from Node.js v6.3 has built-in debugger that can be used with Chrom DevTools. For earlier versions use node-inspector package.

To debug rules that have Mocha tests use:

node --inspect-brk ./node_modules/mocha/bin/_mocha --no-timeouts --colors "dist/src/tests/**/*.js"

To debug rules that have tests in TSLint format use:

node --inspect-brk ./node_modules/tslint/bin/tslint --test -r dist/src "tests/**"

Then open chrome://inspect/, click on inspect link for proper target in Remote Target section and add tslint-microsoft-contrib folder to Workspace (in Sources tab).

Set a breakpoint somewhere in your code and resume execution. Your breakpoint should be hit.

You can use npm start watcher that will rebuild TS files from src before launching debug commands.

NOTE: If breakpoints are not hit you can try to use inlineSourceMaps instead of sourceMaps in tsconfig.json

Creating a new Release

Refer to the Releases doc.