ci: add changelogen

Author: CodeDredd

package.json

@@ -29,6 +29,7 @@
     "@types/lodash.kebabcase": "^4.1.7",
     "@types/node": "^18.17.18",
     "chalk": "^4.1.2",
+    "changelogen": "^0.5.5",
     "conventional-changelog-cli": "^4.1.0",
     "enquirer": "^2.4.1",
     "execa": "^8.0.1",

pnpm-lock.yaml

@@ -0,0 +1,114 @@
+import { promises as fsp } from 'node:fs'
+import { resolve } from 'pathe'
+import { globby } from 'globby'
+import { execaSync } from 'execa'
+import { determineSemverChange, getGitDiff, loadChangelogConfig, parseCommits } from 'changelogen'
+
+export interface Dep {
+  name: string,
+  range: string,
+  type: string
+}
+
+type ThenArg<T> = T extends PromiseLike<infer U> ? U : T
+export type Package = ThenArg<ReturnType<typeof loadPackage>>
+
+export async function loadPackage (dir: string) {
+  const pkgPath = resolve(dir, 'package.json')
+  const data = JSON.parse(await fsp.readFile(pkgPath, 'utf-8').catch(() => '{}'))
+  const save = () => fsp.writeFile(pkgPath, JSON.stringify(data, null, 2) + '\n')
+
+  const updateDeps = (reviver: (dep: Dep) => Dep | void) => {
+    for (const type of ['dependencies', 'devDependencies', 'optionalDependencies', 'peerDependencies']) {
+      if (!data[type]) { continue }
+      for (const e of Object.entries(data[type])) {
+        const dep: Dep = { name: e[0], range: e[1] as string, type }
+        delete data[type][dep.name]
+        const updated = reviver(dep) || dep
+        data[updated.type] = data[updated.type] || {}
+        data[updated.type][updated.name] = updated.range
+      }
+    }
+  }
+
+  return {
+    dir,
+    data,
+    save,
+    updateDeps
+  }
+}
+
+export async function loadWorkspace (dir: string) {
+  const workspacePkg = await loadPackage(dir)
+  const pkgDirs = (await globby(['packages/*'], { onlyDirectories: true })).sort()
+
+  const packages: Package[] = []
+
+  for (const pkgDir of pkgDirs) {
+    const pkg = await loadPackage(pkgDir)
+    if (!pkg.data.name) { continue }
+    packages.push(pkg)
+  }
+
+  const find = (name: string) => {
+    const pkg = packages.find(pkg => pkg.data.name === name)
+    if (!pkg) {
+      throw new Error('Workspace package not found: ' + name)
+    }
+    return pkg
+  }
+
+  const rename = (from: string, to: string) => {
+    find(from).data._name = find(from).data.name
+    find(from).data.name = to
+    for (const pkg of packages) {
+      pkg.updateDeps((dep) => {
+        if (dep.name === from && !dep.range.startsWith('npm:')) {
+          dep.range = 'npm:' + to + '@' + dep.range
+        }
+      })
+    }
+  }
+
+  const setVersion = (name: string, newVersion: string, opts: { updateDeps?: boolean } = {}) => {
+    find(name).data.version = newVersion
+    if (!opts.updateDeps) { return }
+
+    for (const pkg of packages) {
+      pkg.updateDeps((dep) => {
+        if (dep.name === name) {
+          dep.range = newVersion
+        }
+      })
+    }
+  }
+
+  const save = () => Promise.all(packages.map(pkg => pkg.save()))
+
+  return {
+    dir,
+    workspacePkg,
+    packages,
+    save,
+    find,
+    rename,
+    setVersion
+  }
+}
+
+export async function determineBumpType () {
+  const config = await loadChangelogConfig(process.cwd())
+  const commits = await getLatestCommits()
+
+  const bumpType = determineSemverChange(commits, config)
+
+  return bumpType === 'major' ? 'minor' : bumpType
+}
+
+export async function getLatestCommits () {
+  const config = await loadChangelogConfig(process.cwd())
+  const latestTag = execaSync('git', ['describe', '--tags', '--abbrev=0']).stdout
+
+  return parseCommits(await getGitDiff(latestTag), config)
+}