From 5abccbecb95b408c0307d65842bc6e6786bc1dc3 Mon Sep 17 00:00:00 2001
From: Yuki Hattori <yukihattori1116@gmail.com>
Date: Tue, 29 May 2018 20:55:03 +0900
Subject: [PATCH] Update version script to work with Mac (#31)

* Update version script to work with Mac

* Fix version script to add prefix "v"

* Add CHANGELOG.md to git stage after updating version
---
 package.json |  2 +-
 version.js   | 14 ++++++++++++++
 version.sh   |  4 ----
 3 files changed, 15 insertions(+), 5 deletions(-)
 create mode 100644 version.js
 delete mode 100644 version.sh

diff --git a/package.json b/package.json
index 7b6c40e5..2447a12a 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "preversion": "npm-run-all --npm-path yarn --parallel format:check lint:all test:coverage",
     "test": "cross-env NODE_ENV=test mocha",
     "test:coverage": "cross-env NODE_ENV=test nyc mocha",
-    "version": "bash version.sh",
+    "version": "node version.js && git add -A CHANGELOG.md",
     "watch": "babel src --out-dir lib -w"
   },
   "devDependencies": {
diff --git a/version.js b/version.js
new file mode 100644
index 00000000..ad884e3c
--- /dev/null
+++ b/version.js
@@ -0,0 +1,14 @@
+const fs = require('fs')
+const path = require('path')
+
+const unreleased = '## [Unreleased]'
+const [date] = new Date().toISOString().split('T')
+const version = `## v${process.env.npm_package_version} - ${date}`
+
+const changelog = path.resolve(__dirname, 'CHANGELOG.md')
+const content = fs.readFileSync(changelog, 'utf8')
+
+fs.writeFileSync(
+  changelog,
+  content.replace(unreleased, `${unreleased}\n\n${version}`)
+)
diff --git a/version.sh b/version.sh
deleted file mode 100644
index f04404c9..00000000
--- a/version.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/bash
-grep -q '## \[Unreleased\]' CHANGELOG.md &&
-  sed -i "s/## \[Unreleased\]/&\n\n## v$npm_package_version - $(date -u '+%F')/" CHANGELOG.md &&
-  git add -A CHANGELOG.md