Start migrating CrazyFun to use bazel

Author: shs96c

Rakefile

@@ -3,6 +3,7 @@
 $LOAD_PATH.unshift File.expand_path(".")
 
 require 'rake'
+require 'rake-tasks/bazel'
 require 'rake-tasks/files'
 require 'net/telnet'
 require 'stringio'
@@ -71,14 +72,10 @@ crazy_fun = CrazyFun.new
 #
 # If crazy fun doesn't know how to handle a particular output type ("java_library"
 # in the example above) then it will throw an exception, stopping the build
-ExportMappings.new.add_all(crazy_fun)
-FolderMappings.new.add_all(crazy_fun)
 GccMappings.new.add_all(crazy_fun)
-JavascriptMappings.new.add_all(crazy_fun)
 JRubyMappings.new.add_all(crazy_fun)
 PythonMappings.new.add_all(crazy_fun)
 RakeMappings.new.add_all(crazy_fun)
-RenameMappings.new.add_all(crazy_fun)
 RubyMappings.new.add_all(crazy_fun)
 VisualStudioMappings.new.add_all(crazy_fun)
 
@@ -88,7 +85,7 @@ VisualStudioMappings.new.add_all(crazy_fun)
 # need to fall back to prebuilt binaries. The prebuilt binaries are stored in
 # a directory structure identical to that used in the "build" folder, but
 # rooted at one of the following locations:
-["cpp/prebuilt", "javascript/firefox-driver/prebuilt"].each do |pre|
+["cpp/prebuilt"].each do |pre|
   crazy_fun.prebuilt_roots << pre
 end
 
@@ -97,15 +94,12 @@ end
 # from rake.
 crazy_fun.create_tasks(Dir["common/**/build.desc"])
 crazy_fun.create_tasks(Dir["cpp/**/build.desc"])
-crazy_fun.create_tasks(Dir["javascript/**/build.desc"])
-crazy_fun.create_tasks(Dir["py/**/build.desc"])
-crazy_fun.create_tasks(Dir["rake-tasks/**/build.desc"])
 crazy_fun.create_tasks(Dir["rb/**/build.desc"])
-crazy_fun.create_tasks(Dir["third_party/**/build.desc"])
 
-# Buck integration. Loaded after CrazyFun has initialized all the tasks it'll handle.
-# This is because the buck integration creates a rule for "//.*"
-require 'rake-tasks/buck'
+# If it looks like a bazel target, build it with bazel
+rule /\/\/.*/ do |task|
+  task.out = Bazel::execute("build", task.name)
+end
 
 # Spoof tasks to get CI working with buck
 task '//java/client/test/org/openqa/selenium/environment/webserver:webserver:uber' => [
@@ -553,7 +547,7 @@ namespace :node do
   task :build do
     sh "bazel build //javascript/node/selenium-webdriver"
   end
-  
+
   task :'dry-run' => [
     "node:build",
   ] do

rake-tasks/bazel.rb

@@ -0,0 +1,53 @@
+require 'pp'
+require 'open3'
+require "rake/task"
+
+module Bazel
+  def self.execute(kind, target, &block)
+    verbose = Rake::FileUtilsExt.verbose_flag
+    outs = []
+
+    cmd = %w(bazel) + [kind, target]
+    cmd_out = ""
+    Open3.popen2e(*cmd) do |stdin, stdouts, wait|
+      Thread.new do
+        while (line = stdouts.gets)
+          if line.chomp =~ /\s+(bazel-bin\/.+)/
+            outs << $1
+          end
+          cmd_out << line
+          STDOUT.print line if verbose
+        end
+      end
+
+      stdin.close
+
+      raise "#{cmd.join(' ')} failed with exit code: #{wait.value.exitstatus}" unless wait.value.success?
+
+      block.call(cmd_out) if block
+
+      if outs.length
+        puts "#{target} -> #{outs[0]}"
+      end
+      outs[0] if outs.length
+    end
+  end
+
+  class BazelTask < Rake::Task
+    def needed?
+      true
+    end
+
+    def invoke(*args, &block)
+      self.out = Bazel::execute(@verbose, "build", name, &block)
+
+      block.call(cmd_out) if block
+    end
+  end
+end
+
+module Rake::DSL
+  def bazel(*args, &block)
+    Bazel::BazelTask.define_task(*args, &block)
+  end
+end

rake-tasks/buck.rb

@@ -213,20 +213,3 @@ def buck(*args, &block)
     end
   end
 end
-
-
-rule /\/\/.*/ do |task|
-  # Task is a FileTask, but that's not what we need. Instead, just delegate down to buck in all
-  # cases where the rule was not created by CrazyFun. Rules created by the "rule" method will
-  # be a FileTask, whereas those created by CrazyFun are normal rake Tasks.
-
-  buck_file = task.name[/\/\/([^:]+)/, 1] + "/BUCK"
-
-  if task.class == Rake::FileTask && !task.out && File.exists?(buck_file)
-    task.enhance do
-      Buck.buck_cmd('build', ['--deep', task.name])
-    end
-
-    Buck::enhance_task(task)
-  end
-end