Disable remote downloads

nebhale · nebhale · commit 64970dbb1cee · 2014-03-28T07:33:12.000Z
This is the fourth step in creating an offline buildpack.  In this
change, the config/cache.yml file is modified to explicitly disable
remote downloads.

[#67851760]
diff --git a/Rakefile b/Rakefile
@@ -36,6 +36,7 @@ task :check_api_doc do
   abort "\nFailed due to undocumented public API:\n\n#{output}" if output !~ /100.00% documented/
 end
 
+require 'pathname'
 require_relative 'rakelib/dependency_cache_task'
 require_relative 'rakelib/offline'
 require_relative 'rakelib/stage_buildpack_task'
@@ -49,6 +50,11 @@ stage_files_task      = Offline::StageBuildpackTask.new(Dir['bin/**/*', 'config/
                                                         .reject { |f| File.directory? f })
 tar_file_task         = Offline::TarFileTask.new(dependency_cache_task, stage_files_task)
 
+file "#{Offline::STAGING_DIR}/config/cache.yml" do |t|
+  content = Pathname.new(t.source).read.gsub(/enabled/, 'disabled')
+  Pathname.new(t.name).open('w') { |file| file.write content }
+end
+
 desc 'Create a buildpack for use offline'
 task offline: [tar_file_task.targets]
 
diff --git a/rakelib/dependency_cache_task.rb b/rakelib/dependency_cache_task.rb
@@ -141,7 +141,7 @@ def version(configuration, index)
 
   def create_task(uri)
     task uri do |t|
-      puts "Caching #{t.name}"
+      rake_output_message "Caching #{t.name}"
       cache.get(t.name)
     end
 
diff --git a/rakelib/offline.rb b/rakelib/offline.rb
@@ -24,8 +24,4 @@ module Offline
 
   STAGING_DIR = "#{BUILD_DIR}/staging".freeze
 
-  def verbose?
-    verbose == true
-  end
-
 end
diff --git a/rakelib/stage_buildpack_task.rb b/rakelib/stage_buildpack_task.rb
@@ -34,10 +34,11 @@ def target(source)
     private
 
     def create_task(source, target)
-      file(target => [source]) do |t|
-        rm_f t.name, verbose: verbose?
-        mkdir_p File.dirname(t.name), verbose: verbose?
-        cp t.source, t.name, verbose: verbose?
+      parent = File.dirname target
+
+      directory parent
+      file(target => [source, parent]) do |t|
+        cp t.source, t.name
       end
 
       target
diff --git a/rakelib/tar_file_task.rb b/rakelib/tar_file_task.rb
@@ -34,12 +34,12 @@ def target
     end
 
     def create_task(dependencies, target)
-      file target => dependencies do |t|
-        rm_f t.name, verbose: verbose?
-        mkdir_p File.dirname(t.name), verbose: verbose?
-        `tar #{verbose? ? 'v' : ''}czf #{t.name} -C #{STAGING_DIR} .`
+      parent = File.dirname target
 
-        puts "Offline Buildpack created at #{t.name}"
+      directory parent
+      file target => [dependencies, parent].flatten do |t|
+        rake_output_message "Creating #{t.name}"
+        `tar czf #{t.name} -C #{STAGING_DIR} .`
       end
 
       target
