Allow for parralel execution of cucumber tests

Author: joonty

features/support/env.rb

@@ -1,19 +1,27 @@
 require 'vimrunner'
+require 'securerandom'
 require_relative "../../rubylib/vdebug"
 
-PHP_INI = File.expand_path('../../../.travis.php.ini', __FILE__)
+begin
+  TMP_DIR = "tmpspace_#{SecureRandom::hex(3)}"
+  PHP_INI = File.expand_path('../../../.travis.php.ini', __FILE__)
 
-Before do
-  Dir.mkdir 'tmpspace' unless Dir.exists? 'tmpspace'
-  Dir.chdir 'tmpspace'
+  Before do
+    Dir.mkdir TMP_DIR unless Dir.exists? TMP_DIR
+    Dir.chdir TMP_DIR
 
-  # Setup plugin in the Vim instance
-  plugin_path = File.expand_path('../../..', __FILE__)
-  vim.add_plugin(plugin_path, 'plugin/vdebug.vim')
-end
+    # Setup plugin in the Vim instance
+    plugin_path = File.expand_path('../../..', __FILE__)
+    vim.add_plugin(plugin_path, 'plugin/vdebug.vim')
+  end
+
+  After do
+    kill_vim
+    Dir.chdir '..'
+    system "rm -r #{TMP_DIR}"
+  end
 
-After do
-  kill_vim
-  Dir.chdir '..'
-  system "rm -r tmpspace"
+rescue Exception
+  system "rm -r #{TMP_DIR}"
+  raise
 end

features/support/helpers.rb

@@ -13,7 +13,10 @@ def kill_vim
     if @vim
       @vim.kill
       @vim = nil
-      @vdebug = nil
+      if @vdebug
+        @vdebug.remove_lock_file!
+        @vdebug = nil
+      end
     end
   end
 end

rubylib/vdebug.rb

@@ -1,13 +1,18 @@
+require 'securerandom'
+
 class Vdebug
   class BufferNotFound < StandardError; end;
 
   attr_reader :vim
 
   def initialize(vim)
+    @lock_file = "../vdebug.lock"
+    @instance_id = SecureRandom::hex(3)
     @vim = vim
   end
 
   def start_listening
+    write_lock_file!
     clear_buffer_cache!
     vim.server.remote_send ":python debugger.run()<CR>"
     sleep 1
@@ -103,7 +108,22 @@ def status
     /Status: (\S+)/.match(status_window_content)[1]
   end
 
+  def remove_lock_file!
+    if File.exists?(@lock_file) && File.read(@lock_file) == @instance_id
+      puts "Deleting lock file for #{@instance_id}"
+      File.delete(@lock_file)
+    end
+  end
+
 protected
+  def write_lock_file!
+    while File.exists?(@lock_file)
+      sleep 0.1
+    end
+    puts "Creating lock file for #{@instance_id}"
+    File.write(@lock_file, @instance_id)
+  end
+
   def fetch_buffer_content(name)
     bufnum = buffers.invert.fetch(name)
     vim.echo(%Q{join(getbufline(#{bufnum}, 1, "$"), "\\n")})