Actually improving crazyfun-bazel integration for non-windows systems

(accidentally committed a wrong version of the file)

Author: barancev

rakelib/bazel.rake

@@ -1,4 +1,5 @@
 require 'pp'
+require 'open3'
 require 'rake/task'
 require 'rake_tasks/selenium_rake/checks'
 require 'rakelib/bazel/task'
@@ -11,15 +12,33 @@ module Bazel
 
       cmd = %w[bazel] + [kind, target] + (args || [])
       puts cmd.join(" ")
-      
+
       if SeleniumRake::Checks::windows?
         cmd = cmd + ["2>&1"]
         cmd_line = cmd.join(" ")
         cmd_out = `#{cmd_line}`
         cmd_exit_code = $?.success?
       else
-        cmd_out = `#{cmd_line}`
-        cmd_exit_code = $?.success?
+        Open3.popen2e(*cmd) do |stdin, stdouts, wait|
+          is_running = true
+          stdin.close
+          cmd_out = ''
+          while is_running
+            begin
+              pipes = IO.select([stdouts])
+              if pipes.empty?
+                is_running = false
+              else
+                line = stdouts.readpartial(512)
+                cmd_out << line
+                STDOUT.print line if verbose
+              end
+            rescue EOFError
+              is_running = false
+            end
+          end
+          cmd_exit_code = wait.value.exitstatus
+        end
       end
 
       puts cmd_out if verbose
@@ -28,9 +47,9 @@ module Bazel
 
       block&.call(cmd_out)
       out_artifact = Regexp.last_match(1) if cmd_out =~ %r{\s+(bazel-bin/\S+)}
-      
+
       puts "#{target} -> #{out_artifact}" if out_artifact
       out_artifact
     end
   end
-end
+end