initviz: add --xscale command line option

Defaults to 5.0, same as interactive mode.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

Author: troglobit

initviz/batch.py

@@ -34,13 +34,16 @@ def render(writer, trace, app_options, filename):
         writer.error ("Unknown format '%s'." % fmt)
         return 10
 
+    # Get xscale from options, defaulting to 5.0 to match interactive mode
+    xscale = getattr(app_options, 'xscale', 5.0)
+
     make_surface, write_surface = handlers[fmt]
     options = RenderOptions (app_options)
-    (w, h) = draw.extents (options, 1.0, trace)
+    (w, h) = draw.extents (options, xscale, trace)
     w = max (w, draw.MIN_IMG_W)
     surface = make_surface (w, h)
     ctx = cairo.Context (surface)
-    draw.render (ctx, options, 1.0, trace)
+    draw.render (ctx, options, xscale, trace)
     write_surface (surface)
     writer.status ("bootchart written to '%s'" % filename)
 

initviz/main.py.in

@@ -64,6 +64,8 @@ def _mk_options_parser():
 			       "To create a single annotation when any one of a set of processes is started, use commas to separate the names")
 	parser.add_option("--annotate-file", dest="annotate_file", metavar="FILENAME", default=None,
 			  help="filename to write annotation points to")
+	parser.add_option("--xscale", dest="xscale", type="float", metavar="SCALE", default=5.0,
+			  help="timeline scale factor (default: 5.0, same as interactive mode)")
 	return parser
 
 class Writer: