publish.mjs

#!/usr/bin/env node
/* eslint flowtype/require-valid-file-annotation: off */

import { env } from "process";

import { $, question } from "zx";

try {
  await $`git diff-files --quiet`;
  await $`git diff-index --quiet --cached HEAD`;
} catch (err) {
  throw new Error(
    `Cannot continue with unstaged or uncommitted changes\nExit code: ${err.exitCode}`
  );
}

await $`npm test`;

// This will determine the type of release based on the git branch. When the default branch is used, it will be a `patch` that's published to npm under the `latest` dist-tag. Any other branch will be a `prelease` that's published to npm under the `alpha` dist-tag.

let BUMP = "patch";
let TAG = "latest";
const { NPM_TOKEN } = env;

let { stdout: CURRENT_BRANCH } = await $`git rev-parse --abbrev-ref HEAD`;
CURRENT_BRANCH = CURRENT_BRANCH.trim();
let { stdout: DEFAULT_BRANCH } =
  await $`git remote show origin | sed -n '/HEAD branch/s/.*: //p'`;
DEFAULT_BRANCH = DEFAULT_BRANCH.trim();

if (CURRENT_BRANCH !== DEFAULT_BRANCH) {
  BUMP = "prerelease";
  TAG = "alpha";
  await $`npm --no-git-tag-version version ${BUMP} --preid=${TAG}`;
} else {
  await $`npm version ${BUMP}`;
}

// Push and publish!
await $`git push`;

let twoFactorCode;

if (NPM_TOKEN) {
  if (TAG === "alpha") {
    await $`NPM_TOKEN=${NPM_TOKEN} npm publish --tag ${TAG}`;
  } else {
    await $`git push --tags`;
    await $`NPM_TOKEN=${NPM_TOKEN} npm publish --tag ${TAG}`;
  }
} else {
  twoFactorCode = await question("NPM 2FA Code: ");
  if (TAG === "alpha") {
    await $`npm publish --tag ${TAG} --otp ${twoFactorCode}`;
  } else {
    await $`git push --tags`;
    await $`npm publish --tag ${TAG} --otp ${twoFactorCode}`;
  }
}