From 267de7185d9288c5a974e0f6171efa7ff346d220 Mon Sep 17 00:00:00 2001
From: Kohei Watanabe <kou029w@gmail.com>
Date: Sun, 5 Sep 2021 15:41:38 +0900
Subject: [PATCH] =?UTF-8?q?bin/version=20curl,=20jq=20=E2=86=92=20ruby?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md   |  2 +-
 bin/version | 19 +++++++++++--------
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index cbba19c..98ff4e1 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ bin/img-gen
 - Docker
 - Docker Compose
 - qemu-user-static
-- awk, bash, curl, fallocate, grep, gzip, gzip, jq, losetup, mkfs.fat, parted, ruby, ssh-keygen, tar, xargs
+- awk, bash, curl, fallocate, grep, gzip, gzip, losetup, mkfs.fat, parted, ruby, ssh-keygen, tar, xargs
 
 ### WiFi の設定
 
diff --git a/bin/version b/bin/version
index 8ba5475..b7ba2e5 100755
--- a/bin/version
+++ b/bin/version
@@ -1,10 +1,13 @@
-#!/bin/sh
+#!/usr/bin/env ruby
 # 最新のバージョンを取得
 # Usage: bin/version
-# Required: curl grep jq ruby
-set -eu
-base="http://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/armhf"
-curl -s "${base}/latest-releases.yaml" \
-  | ruby -ryaml -rjson -e 'puts(YAML.load($<).to_json)' \
-  | jq -r '.[] | select(.title == "Raspberry Pi").file' \
-  | grep -Eo '[0-9]+\.[0-9]+\.[0-9]+'
+require "open-uri"
+require "yaml"
+
+base = "http://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/armhf"
+url = "#{base}/latest-releases.yaml"
+io = URI.open(url)
+yaml = YAML.load(io)
+version = yaml.dig(0, "version")
+
+puts version