Update version based on change log fragments

internals/scripts/changelog.js

@@ -0,0 +1,37 @@
+const execSync = require('child_process').execSync
+const semver = require('semver')
+const glob = require('glob')
+const packageJson = require('../../package.json')
+
+const folderPath = '.changelog/'
+const majorPattern = `${folderPath}*breaking*.md`
+const minorPattern = `${folderPath}*feature*.md`
+const patchPattern = `${folderPath}*{process,cfg,bugfix,doc,internal,trivial}*.md`
+
+console.log('Assembling Change Log and updating package version')
+
+let version = packageJson.version
+if (glob.sync(majorPattern).length > 0) {
+  console.log('\x1b[31m%s\x1b[0m', 'Warning: This release contains breaking changes.')
+  version = semver.inc(version, 'major')
+} else if (glob.sync(minorPattern).length > 0) {
+  version = semver.inc(version, 'minor')
+} else if (glob.sync(patchPattern).length > 0) {
+  version = semver.inc(version, 'patch')
+} else {
+  console.log('No Change Log fragments found. Aborting release...')
+  process.exit(1)
+}
+
+if (!semver.valid(version)) {
+  console.log(`Invalid version: ${version}`)
+  process.exit(1)
+}
+
+if (semver.lte(version, packageJson.version)) {
+  console.log(`Version ${version} is not greater than ${packageJson.version}`)
+  process.exit(1)
+}
+
+execSync(`yarn version --no-git-tag-version --new-version ${version}`, { stdio: 'inherit' })
+execSync(`towncrier build --version ${version}`, { stdio: 'inherit' })

package.json

@@ -25,6 +25,7 @@
     "lint-git": "node ./internals/scripts/gitlint.js",
     "lint-docs": "markdownlint --ignore '**/node_modules/**' '**/*.md'",
     "lint-changelog": "markdownlint --config .changelog/.markdownlint.yml .changelog/",
+    "changelog": "node ./internals/scripts/changelog.js",
     "release-tag": "node ./internals/scripts/release-tag.js",
     "extract-messages": "rm src/locales/en/translation.json && i18next-scanner --config=internals/extractMessages/i18next-scanner.config.js",
     "fix-grommet-icons-types": "node ./internals/scripts/fix-grommet-icons-types.js",