avoid using wget

Author: iliabylich

codegen/build.mk

@@ -1,7 +1,11 @@
+define download_file
+URL="$(1)" SAVE_AS="$(2)" ruby scripts/download_file.rb
+endef
+
 CODEGEN_EXE = codegen/codegen$(EXE)
 
 $(CODEGEN_EXE):
-	wget -q https://github.com/lib-ruby-parser/nodes/releases/download/v0.52.0/codegen-$(TARGET)$(EXE) -O $(CODEGEN_EXE)
+	$(call download_file, https://github.com/lib-ruby-parser/nodes/releases/download/v0.52.0/codegen-$(TARGET)$(EXE), $@)
 	chmod +x $(CODEGEN_EXE)
 CLEAN += $(CODEGEN_EXE)
 

scripts/download_file.rb

@@ -0,0 +1,10 @@
+require 'open-uri'
+
+url = ENV.fetch('URL') { abort 'URL env var must be provided.' }.strip
+save_as = ENV.fetch('SAVE_AS') { abort 'SAVE_AS env var must be provided' }.strip
+
+File.open(save_as, 'wb') do |file|
+    URI.open(url, 'rb') do |asset|
+        file.write(asset.read)
+    end
+end