Fixed Windows silliness

lib/application_manager/task.rb

@@ -98,8 +98,8 @@ class W3DHub
       # Quick checks before network and computational work starts
       def fail_fast
         # tar present?
-        bsdtar_present = system("bsdtar --help")
+        bsdtar_present = system("#{W3DHub.tar_command} --help")
-        fail!("FAIL FAST: `bsdtar --help` command failed, bsdtar is not installed. Will be unable to unpack packages.") unless bsdtar_present
+        fail!("FAIL FAST: `#{W3DHub.tar_command} --help` command failed, #{W3DHub.tar_command} is not installed. Will be unable to unpack packages.") unless bsdtar_present
 
         if W3DHub.unix?
           wine_present = system("which #{window.settings[:wine_command]}")
@@ -263,8 +263,8 @@ class W3DHub
           puts "    #{package.name}:#{package.version}"
           package_path = Cache.package_path(package.category, package.subcategory, "#{package.name}.zip", package.version)
 
-          puts "      Running bsdtar command: #{"bsdtar -xf #{package_path} -C #{path}"}"
+          puts "      Running #{W3DHub.tar_command} command: #{"#{W3DHub.tar_command} -xf #{package_path} -C #{path}"}"
-          status = system("bsdtar -xf #{package_path} -C #{path}")
+          status = system("#{W3DHub.tar_command} -xf #{package_path} -C #{path}")
           if status
           else
             puts "COMMAND FAILED!"

lib/common.rb

@@ -32,6 +32,14 @@ class W3DHub
     linux? || mac?
   end
 
+  def self.tar_command
+    if windows?
+      "tar"
+    else
+      "bsdtar"
+    end
+  end
+
   def self.home_directory
     File.expand_path("~")
   end