[meta] add auto-changelog

.npmrc

@@ -1 +1,3 @@
 package-lock=false
+allow-same-version=true
+message=v%s

CHANGELOG.md

@@ -1,3 +1,22 @@
-1.0.0 / 2017-05-30
-=================
-  * Initial release.
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
+
+## v1.0.0 - 2017-05-30
+
+### Commits
+
+- Dotfiles. [`02c20cb`](https://github.com/ljharb/util.promisify/commit/02c20cb4eb01cf656102f57f71635785114f1d09)
+- Initial implementation. [`05ff048`](https://github.com/ljharb/util.promisify/commit/05ff0480448f019a85675ce81ecc4e9bdc099286)
+- Initial commit [`9472155`](https://github.com/ljharb/util.promisify/commit/947215502491bb1b3238aa0ac5c67258e41db3a8)
+- package.json [`e0302c0`](https://github.com/ljharb/util.promisify/commit/e0302c01e5e3b1dd78647303f9a4337b5bb63196)
+- Initial readme. [`5df78e1`](https://github.com/ljharb/util.promisify/commit/5df78e16e89e8328c61d6bbac85409a36560fe3b)
+- [Dev Deps] add `safe-publish-latest` [`596b6b4`](https://github.com/ljharb/util.promisify/commit/596b6b4fbce79dbaf5fff366454ab5b31d2eb993)
+- [Tests] add `npm run lint` [`54c2ccb`](https://github.com/ljharb/util.promisify/commit/54c2ccb85db682fc293b30a0bfece76d0a5c7c60)
+- [Dev Deps] add `@es-shims/api` [`d9014f1`](https://github.com/ljharb/util.promisify/commit/d9014f12add2fb3fe743647df614c69ed305a824)
+- [Tests] allow 0.10 and 0.8 to fail, for now. [`c5c7b61`](https://github.com/ljharb/util.promisify/commit/c5c7b619b88878fc715d1768b48bd45378c9f807)

package.json

@@ -11,6 +11,7 @@
 	"devDependencies": {
 		"@es-shims/api": "^2.1.2",
 		"@ljharb/eslint-config": "^15.0.2",
+		"auto-changelog": "^1.16.2",
 		"eslint": "^6.7.1",
 		"safe-publish-latest": "^1.1.4"
 	},
@@ -20,7 +21,9 @@
 		"pretest": "npm run lint",
 		"tests-only": "es-shim-api --bound",
 		"test": "npm run tests-only",
-		"posttest": "npx aud"
+		"posttest": "npx aud",
+		"version": "auto-changelog && git add CHANGELOG.md",
+		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
 	},
 	"repository": {
 		"type": "git",
@@ -42,5 +45,12 @@
 	"bugs": {
 		"url": "https://github.com/ljharb/util.promisify/issues"
 	},
-	"homepage": "https://github.com/ljharb/util.promisify#readme"
+	"homepage": "https://github.com/ljharb/util.promisify#readme",
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false
+	}
 }