How can I use bit test in my lint-staged Git pre-commit hook?

[demeralde]

I have a lint-staged config for my Git pre-commit hook:

module.exports = {
  "*.{ts,tsx,js}": [
    "prettier --write",
    "eslint -c .eslintrc.js --fix",
    "jest --bail --findRelatedTests",
  ],
  "*.md": ["remark -u preset-lint-recommended"],
};

This works fine in my other projects, because jest is the command to run tests. lint-staged passes a list of each changed file to jest --bail --findRelatedTests, so it only tests the files being committed (and not the entire project).

However, bit test is used in this environment. And this command doesn't have an argument like --findRelatedTests where it will only test the files being committed.

How should I handle this?

[itaymendel]

Hi,

The "related" flow is a core feature in Bit. By default all your operations (compile, build, test, lint, format...) operate only on modified components and their dependents (recursively). Potentially you can just run bit test and you get the same dev-experience without needing the additional configuration.

[demeralde]

@itaymendel the problem is lint-staged passes a list of all the changed files to the command (in this case bit test).

So even though bit test only runs for modified components, this command breaks because lint-staged passes it a list of all of the modified files as an argument.

Therefore if an option can be added to bit test to pass the file path of each modified file, it will just work.