From: James Bunton <jamesbunton@fastmail.fm>
Date: Sun, 1 Mar 2009 12:03:20 +0000 (+1100)
Subject: Ensure output files do not exist before starting
X-Git-Url: https://code.delx.au/transcoding/commitdiff_plain/4ac0fd33e2fa427335ec5c9e5dad9cf4ad166737

Ensure output files do not exist before starting
---

diff --git a/encode.py b/encode.py
index 1bc6c3a..cdc733c 100755
--- a/encode.py
+++ b/encode.py
@@ -26,6 +26,10 @@ class Command(object):
 			return
 		if subprocess.Popen(["which", cmd], stdout=open("/dev/null", "w")).wait() != 0:
 			raise FatalException("Command '%s' is required" % cmd)
+	
+	def check_no_file(self, path):
+		if os.path.exists(path):
+			raise FatalException("Output file '%s' exists." % path)
 
 	def do_exec(self, args):
 		if self.opts.dump:
@@ -45,6 +49,7 @@ class MP4Box(Command):
 	def check(self):
 		self.check_command("mencoder")
 		self.check_command("MP4Box")
+		self.check_no_file(self.opts.output + ".mp4")
 
 	def run(self):
 		p = self.profile
@@ -122,6 +127,7 @@ class Mencoder(Command):
 
 	def check(self):
 		self.check_command("mencoder")
+		self.check_no_file(self.opts.output + ".avi")
 
 	def run(self):
 		self.do_exec(self.pass1())