Makefile to publish royalzsoftware/royal-data-ts to GitHub and npm by simply changing the CHANGELOG.md

apply-latest-version-from-changelog-to-package-json.js

const fs = require('fs');

function readChangelogFile() {
    const buffer = fs.readFileSync(__dirname + '/../CHANGELOG.md');

    return buffer.toString();
}

function findLatestVersionFromChangelog(changelogData) {
    const regex = /\d*\.\d*\.\d*/;

    return regex.exec(changelogData)[0];
}

function readPackageJson() {
    const buffer = fs.readFileSync(__dirname + '/../package.json');

    return JSON.parse(buffer);
}

function savePackageJson(updatedPackageJson) {
    fs.writeFileSync(__dirname + '/../package.json', JSON.stringify(updatedPackageJson, null, 2));
}

const changelogContent = readChangelogFile();
const latestVesion = findLatestVersionFromChangelog(changelogContent);

const packageJson = readPackageJson();

if (latestVesion == packageJson.version) {
    console.info("Nothing to do");
    return process.exit(1);
}

console.log("Updating version in package.json from " + packageJson.version + " to " + latestVesion);

packageJson.version = latestVesion;

savePackageJson(packageJson);
return process.exit(0);

Makefile

# requires: jq, git, github cli (gh) and node with npm.

release:
	git diff --quiet -- ':(exclude)Makefile' ':(exclude)CHANGELOG.md' ':(exclude)tools/*' || (echo "You have uncommited changes" && exit 1)
	npm run test
	node tools/apply-latest-version-from-changelog-to-package-json.js
	npm run build
	export TAG=`cat package.json | jq -r .version` && echo $$TAG && git add CHANGELOG.md package.json package-lock.json && git commit -m "chore(changelog): $$TAG" && git tag $$TAG
	git push
	git push --tags
	export TAG=`cat package.json | jq -r .version` && gh release create --title "v$$TAG" $$TAG -F CHANGELOG.md
	npm publish