commit 56d7e8e5ce24d9594e06b3501ce2d695da1af206
author Gilad Arnold <garnold@chromium.org> Fri Jan 31 10:57:23 2014 -0800
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Wed Feb 05 19:48:11 2014 +0000
tree e87e7a81a3046b85c53d3013973cc528920985d2
parent 452fd279144bbc1bd62feaeb52e0729e5c9ace02

devserver: Allocate a free port when given --port=0

This is needed in order for avoid port collisions when running multiple
devserver instances in the lab. In essence, there is nothing to it but
documenting this behavior and relying on a corresponding change to
CherryPy to support this functionality.

BUG=chromium:333082
TEST=Available port allocated with --port=0.
CQ-DEPEND=CL:184925

Change-Id: I04352b763494df900edfad56fed24da9b66a035e
Reviewed-on: https://chromium-review.googlesource.com/184915
Tested-by: Gilad Arnold <garnold@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Queue: Gilad Arnold <garnold@chromium.org>

devserver.py

diff --git a/devserver.py b/devserver.py
index 0e93465..1e27be3 100755
--- a/devserver.py
+++ b/devserver.py
@@ -1055,7 +1055,9 @@
                     help='writable static directory')
   parser.add_option('--port',
                     default=8080, type='int',
-                    help='port for the dev server to use (default: 8080)')
+                    help=('port for the dev server to use; if zero, then we '
+                          'attempt to allocate an available port '
+                          '(default: 8080)'))
   parser.add_option('-t', '--test_image',
                     action='store_true',
                     help='Deprecated.')