Hello DC1ers,

I've just commited a new svn branch: 500 


It completes the conversion of the DC1 framework to use an environment
variable to define the location of the policy file directory containing
all policy files for a specific pipeline instantiation.

Codes which are user callable or MPI callable have an input parameter
defining the policy directory's pathname. On execution, those codes set 
the local process' environment variable LSST_POLICY_DIR. It is that well-known
handle which is used by the Policy class to acquire required policy
statements as needed.

User-callable codes use './policy' as default if the directory parameter 
is not explicitly provided. There is no default for the MPI codes where 
the input parameter is checked for existence.

The previous DC1 requirement that you set the LSST_POLICY_DIR environment 
variable in your shell startup script is hereby removed.  


Robyn

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