Svn update hangs if Wi-Fi active, but not connected to the outside world

[cxbrooks]

Note: the issue was created automatically with bugzilla2github tool

Original bug ID: BZ#21
From: @cxbrooks
Reported version: unspecified
CC: accessors-devel@terraswarm.org

[cxbrooks]

Edward wrote:

"If I have wifi on and connected to an access point but not to the
internet (e.g. to United's wifi network on a plane), then opening a
model stalls forever trying to update the accessors SVN repo. Perhaps it
needs a timeout, rather than just responding to an error?"

The workaround is to set the PT_NO_NET environment variable. I updated JSAccessor.java so that a message is printed:

--start--
bash-3.2$ rm $PTII/org/terraswarm/accessor/accessors/web/Accessor_1.dtd
bash-3.2$ $PTII/bin/capecode $PTII/org/terraswarm/accessor/demo/AugmentedReality/AugmentedRealityKeyValueStore.xml
Updating local copy of the accessors repository.
JSAccessor: If running svn hangs, then try setting the PT_NO_NET environment variable to skip running svn and jsdoc.
In "/Users/cxh/src/ptII11.0.devel/org/terraswarm/accessor/accessors", about to execute:
svn update --non-interactive --trust-server-cert --accept postpone
Updating '.':
Restored 'web/Accessor_1.dtd'
--end--

The real fix would be to use the java.lang.Process waitFor(long timeout, TimeUnit unit) method. To do this would require modifying ptolemy/util/StreamExec.java so that the timeout can be set. Really, the ExecuteCommands interface should be updated and all the derived classes should use this method.