[meta] add auto-changelog

.npmrc

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

CHANGELOG.md

@@ -0,0 +1,46 @@
+# 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).
+
+## [v1.0.4](https://github.com/browserify/cipher-base/compare/v1.0.3...v1.0.4) - 2017-07-06
+
+### Merged
+
+- Safe Buffer & License [`#8`](https://github.com/browserify/cipher-base/pull/8)
+- fix break in node 8 [`#9`](https://github.com/browserify/cipher-base/pull/9)
+
+### Commits
+
+- use safe-buffer [`193bbeb`](https://github.com/browserify/cipher-base/commit/193bbeb0d60ff206b072d4e18b32fcf150eb0fad)
+- add MIT LICENSE [`a9fb6e3`](https://github.com/browserify/cipher-base/commit/a9fb6e316c25b25d2bd04fa5b6eb748318bdcb04)
+- index: add missing Buffer.alloc [`2397a9e`](https://github.com/browserify/cipher-base/commit/2397a9e0db33b2f3d6abbd89f01db1c066804a91)
+- rename README to README, add .gitignore [`9345e1d`](https://github.com/browserify/cipher-base/commit/9345e1d21fd10555bc4f39ccae5512ca0202c5f6)
+
+## [v1.0.3](https://github.com/browserify/cipher-base/compare/v1.0.2...v1.0.3) - 2016-09-13
+
+### Merged
+
+- closure-compiler fix - final is a reserved word [`#4`](https://github.com/browserify/cipher-base/pull/4)
+
+## [v1.0.2](https://github.com/browserify/cipher-base/compare/v1.0.1...v1.0.2) - 2015-10-23
+
+### Merged
+
+- fix up typo in README [`#1`](https://github.com/browserify/cipher-base/pull/1)
+
+### Commits
+
+- Update api-methods. [`c4a7156`](https://github.com/browserify/cipher-base/commit/c4a7156c7beedb524ce5005374d2fd1327fa3ca4)
+- travis [`a5873f7`](https://github.com/browserify/cipher-base/commit/a5873f7dbfe542d7ec28bcb3e306096d1d2b951c)
+- Add api-methods [`208b338`](https://github.com/browserify/cipher-base/commit/208b33841d3e8a6f5322e54bdf442e1ee0d77590)
+- Update error messages [`dc19a24`](https://github.com/browserify/cipher-base/commit/dc19a24119786518c1c835d948e36ddae3bf3adb)
+
+## v1.0.1 - 2015-09-26
+
+### Commits
+
+- first [`8fbd9e7`](https://github.com/browserify/cipher-base/commit/8fbd9e7654d384b578e63d12e0311ae16dc07741)
+- fix error in 0.10 [`61491fe`](https://github.com/browserify/cipher-base/commit/61491fe31fcc9bee0901f93b26cee6eaaca07575)

package.json

@@ -11,7 +11,9 @@
 		"pretest": "npm run lint",
 		"test": "npm run tests-only",
 		"tests-only": "tape 'test/**/*.js'",
-		"posttest": "npx npm@'>=10.2' audit --production"
+		"posttest": "npx npm@'>=10.2' audit --production",
+		"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",
@@ -33,6 +35,8 @@
 	},
 	"devDependencies": {
 		"@ljharb/eslint-config": "^21.1.1",
+		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
 		"eslint": "=8.8.0",
 		"in-publish": "^2.0.1",
 		"npmignore": "^0.3.1",
@@ -44,6 +48,14 @@
 			".github/workflows"
 		]
 	},
+	"auto-changelog": {
+		"output": "CHANGELOG.md",
+		"template": "keepachangelog",
+		"unreleased": false,
+		"commitLimit": false,
+		"backfillLimit": false,
+		"hideCredit": true
+	},
 	"engines": {
 		"node": ">= 0.10"
 	}