simplify host_hash

Author: Judahmeek

lib/shakapacker/digest_strategy.rb

@@ -54,20 +54,12 @@ def record_compilation_digest
 
       def compilation_digest_path
         path = "last-compilation-digest-#{Shakapacker.env}"
-        path += "-#{generate_host_hash}" if generate_host_hash.present?
+        if Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"].present?
+          host_hash = Digest::SHA1.hexdigest(Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"])
+          path += "-#{host_hash}"
+        end
 
         config.cache_path.join(path)
       end
-
-      def generate_host_hash
-        # Using hash for memoizing the host hash is to make testing easier.
-        # The default value, prevents generating hash in the situation where no value for asset_host
-        # and SHAKAPACKER_ASSET_HOST are provided, leading to not add hash to the asset path.
-        @generated_host_hashes ||= { [nil, nil] => "" }
-
-        keys = [Rails.application.config.asset_host, ENV["SHAKAPACKER_ASSET_HOST"]]
-
-        @generated_host_hashes[keys] ||= Digest::SHA1.hexdigest(keys.join("-"))
-      end
   end
 end

spec/shakapacker/digest_strategy_spec.rb

@@ -29,38 +29,31 @@ def remove_compilation_digest_path
   end
 
   it "is stale when host changes" do
-    # allow(Shakapacker.config).to receive(:fetch).with(any_args).and_call_original
-    # allow(Shakapacker.config).to receive(:fetch).with(:compiler_strategy_asset_host_sensitive).and_return(true)
+    old_host = Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"]
 
-    ENV["SHAKAPACKER_ASSET_HOST"] = "the-host"
+    Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"] = "the-host"
 
     @digest_strategy.after_compile_hook
 
-    ENV["SHAKAPACKER_ASSET_HOST"] = "new-host"
+    Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"] = "new-host"
 
     expect(@digest_strategy.stale?).to be true
     expect(@digest_strategy.fresh?).to be_falsey
 
-    ENV["SHAKAPACKER_ASSET_HOST"] = nil
+    Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"] = old_host
   end
 
   it "generates correct compilation_digest_path" do
-    actual_path = @digest_strategy.send(:compilation_digest_path).basename.to_s
-    expected_path = "last-compilation-digest-#{Shakapacker.env}"
-
-    expect(actual_path).to eq expected_path
-  end
-
-  it "generates correct compilation_digest_path with " do
-    # allow(Shakapacker.config).to receive(:fetch).with(any_args).and_call_original
-    # allow(Shakapacker.config).to receive(:fetch).with(:compiler_strategy_asset_host_sensitive).and_return(true)
+    old_host = Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"]
 
-    ENV["SHAKAPACKER_ASSET_HOST"] = "custom-path"
+    Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"] = "custom-path"
 
     actual_path = @digest_strategy.send(:compilation_digest_path).basename.to_s
-    host_hash = Digest::SHA1.hexdigest("-custom-path")
+    host_hash = Digest::SHA1.hexdigest("custom-path")
     expected_path = "last-compilation-digest-#{Shakapacker.env}-#{host_hash}"
 
     expect(actual_path).to eq expected_path
+
+    Shakapacker::Compiler.env["SHAKAPACKER_ASSET_HOST"] = old_host
   end
 end