run command only if all ava tests pass

Question

I am attempting to write a npm script which will run ava, and if everything passed, will run another (deploy) command.

How can you get the result of an ava test either in js, or piped to a file or following command?

The desired functionality would look like this:

npm run safe-deploy

Which would run ava and if everything passed (determined by either exit code or parsing the output) would run another cli command.

Has anyone done this before and if so what's the most suitable way to tackle it?

score 1 · Accepted Answer · answered Feb 22 '18 at 11:46

The easiest thing you can do is to use bash && operator. Please check out this answer to get more details.

It does exactly what you want: runs the second command only in case the first one is executed successfully.

So for example if you have two npm test and npm run deploy you can combine them with && to make a safe-deploy command.

The deploy command is going to to be executed only if tests are passing.

Here is a minimal package.json you can have:

{
  "name": "ava-safe-deploy",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "test": "ava",
    "deploy": "echo 'deployed successfully!'",
    "safe-deploy": "npm test && npm run deploy"
  },
  "license": "ISC",
  "devDependencies": {
    "ava": "^0.25.0"
  }
}

In case tests are failing you'll see the regular ava error message:

run command only if all ava tests pass

1 Answers1