Add args, exit and working_dir options to dosexec

docs/installers.rst

@@ -275,7 +275,6 @@ Currently, the following tasks are implemented:
             executable: drive_c/Program Files/Game/Game.exe
             args: --windowed
 
-
 *   wine / winesteam: ``winetricks`` Runs winetricks with the ``app`` argument.
     ``prefix`` is an optional WINEPREFIX path.
 
@@ -315,6 +314,23 @@ Currently, the following tasks are implemented:
         prefix: $GAMEDIR
         filename: myregfile
 
+*   dosbox: ``dosexec`` Runs dosbox. Parameters are ``executable`` (optional
+    ``file ID`` or path to executable), ``config_file``
+    (optional ``file ID`` or path to .conf file), ``args`` (optional command
+    arguments), ``working_dir`` (optional working directory, defaults to the
+    ``executable``'s dir or the ``config_file``'s dir), ``exit`` (set to
+    ``false`` to prevent DOSBox to exit when the ``executable`` is terminated).
+
+    Example:
+
+    ::
+
+        - task:
+            name: dosexec
+            executable: file_id
+            config: $GAMEDIR/game_install.conf
+            args: -scaler normal3x -conf more_conf.conf
+
 Displaying a drop-down menu with options
 ----------------------------------------
 

lutris/runners/dosbox.py

@@ -6,16 +6,26 @@ from lutris.util.log import logger
 from lutris.runners.runner import Runner
 
 
-def dosexec(config_file=None, executable=None):
+def dosexec(config_file=None, executable=None, args=None, exit=True,
+            working_dir=None):
     """Execute Dosbox with given config_file"""
     logger.debug("Running dosbox with config %s" % config_file)
     dbx = dosbox()
     command = '"{}"'.format(dbx.get_executable())
     if config_file:
         command += ' -conf "{}"'.format(config_file)
+        if not working_dir:
+            working_dir = os.path.dirname(config_file)
     if executable:
         command += ' "{}"'.format(executable)
-    subprocess.Popen(command, shell=True, stdout=subprocess.PIPE).communicate()
+        if not working_dir:
+            working_dir = os.path.dirname(executable)
+    if args:
+        command += ' ' + args
+    if exit:
+        command += " -exit"
+    subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
+                     cwd=working_dir).communicate()
 
 
 class dosbox(Runner):