How can I use environmental variables in the .releaserc.json?

Question

I want to do something like this,

["@semantic-release/exec", {
  "prepareCmd": "echo hello ${HOME};"
}],

And then run this CI job with an environmental variable? Is there a method of making this work in semantic-release?

Answer 1

Use .releaserc.js, or release.config.js

You can rename the releaserc.json to release.config.js or .releaserc.js`, and then it's just a CommonJS module,

const greets = "HELLO ";

module.exports = {
    "foo": `${greets} ${process.title}`
}

That will run as expected.

Internally semantic-release uses cosmiconfig