From d900701ec4c1bd414e0972fd522dbb390780ad4e Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@gmail.com>
Date: Fri, 20 Sep 2019 15:11:07 +0900
Subject: [PATCH] Automate bottle update

---
 utils/formula.rb               | 32 ++++++++++++++++++++++++++++++++
 utils/replace_bottle_sha256.rb | 20 ++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 utils/formula.rb
 create mode 100644 utils/replace_bottle_sha256.rb

diff --git a/utils/formula.rb b/utils/formula.rb
new file mode 100644
index 0000000..752790f
--- /dev/null
+++ b/utils/formula.rb
@@ -0,0 +1,32 @@
+class Formula
+  class << self
+    def bottle(&block)
+      @bottle ||= Bottle.new
+      @bottle.instance_eval(&block)
+    end
+
+    def method_missing(method, *args); end
+
+    def to_hash
+      {
+        'bottle': @bottle.to_hash
+      }
+    end
+  end
+  class Bottle
+    def sha256(hash)
+      @sha256 ||= {}
+      hash.each do |k, v|
+        @sha256[v] = k
+      end
+    end
+
+    def method_missing(method, *args); end
+
+    def to_hash
+      {
+        'sha256': @sha256
+      }
+    end
+  end
+end
diff --git a/utils/replace_bottle_sha256.rb b/utils/replace_bottle_sha256.rb
new file mode 100644
index 0000000..acba195
--- /dev/null
+++ b/utils/replace_bottle_sha256.rb
@@ -0,0 +1,20 @@
+require_relative "formula.rb"
+
+formula_path = Dir.pwd + "/" + ARGV[0]
+new_sha256 = ARGV[1]
+os_version = ARGV[2]
+
+require_relative formula_path
+
+formulae = []
+ObjectSpace.each_object(Formula.singleton_class) do |klass|
+  next if klass == Formula
+  formulae.push(klass)
+end
+
+formula = formulae[0]
+old_sha256 = formula.to_hash[:bottle][:sha256][os_version.to_sym]
+
+formula_content = File.read(formula_path)
+formula_content.gsub!(old_sha256, new_sha256)
+File.write(formula_path, formula_content)