From efd950ae706cfbb55dffebd5d0c85e30acfd7a45 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Tue, 4 Jul 2017 16:44:50 +0200
Subject: Use lazy-loaded factory method for site configuration

---
 lib/active_file/site/gcs_site.rb | 47 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 lib/active_file/site/gcs_site.rb

(limited to 'lib/active_file/site/gcs_site.rb')

diff --git a/lib/active_file/site/gcs_site.rb b/lib/active_file/site/gcs_site.rb
new file mode 100644
index 0000000000..c5f3d634cf
--- /dev/null
+++ b/lib/active_file/site/gcs_site.rb
@@ -0,0 +1,47 @@
+require "google/cloud/storage"
+
+class ActiveFile::Site::GCSSite < ActiveFile::Site
+  attr_reader :client, :bucket
+
+  def initialize(project:, keyfile:, bucket:)
+    @client = Google::Cloud::Storage.new(project: project, keyfile: keyfile)
+    @bucket = @client.bucket(bucket)
+  end
+
+  def upload(key, io)
+    bucket.create_file(io, key)
+  end
+
+  def download(key)
+    io = file_for(key).download
+    io.rewind
+    io.read
+  end
+
+  def delete(key)
+    file_for(key).try(:delete)
+  end
+
+  def exist?(key)
+    file_for(key).present?
+  end
+
+
+  def byte_size(key)
+    file_for(key).size
+  end
+
+  def checksum(key)
+    convert_to_hex base64: file_for(key).md5
+  end
+
+
+  private
+    def file_for(key)
+      bucket.file(key)
+    end
+
+    def convert_to_hex(base64:)
+      base64.unpack("m0").first.unpack("H*").first
+    end
+end
-- 
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