PURPOSE --
 
This script compares a new PRD file with a reference PRD file.
It uses the gnu diff utility for the difference.
 
 python difference_prd_files.py <file name> <branch name>
 
  where:
         branch name = OPS or SM4
 
DEVELOPER --
R. Kantor
 
MODIFICATION HISTORY --
 
o Initial implementation 3/30/04 RK 
o Updated 4/15/04 KWC - Removed from build_PRD_file.py.

Modules
		glob os spst_getopt string sys

Classes
		difference_prd_file   class difference_prd_file       Methods defined here: __init__(self) Constructor. capture_cmd(self, cmd) Replacement for os.system that gets stdout and stderr compare_PRD_files(self, new_file_name, old_file_name) Compare the new file with the installed file. compare_file(self) Compare the new file with the old file. compare_install_file(self, file_name, branch_name) Compare the new file with the installed file. find_ref_file(self, branch_name) Find the reference PRD file to compare against. get_diff(self) Returns a data list of the difference. strip_numbers(self, infile, outfile) Create new file without line numbers. Lines will have 74 columns. write_dif(self) Writes the results of the file difference to disk.

Functions
		run(file_name, branch_name=None, old_file=None, *args) Compare a new PRD file with a reference PRD file.     This uses the gnu diff utility for the difference.   Usage: do difference_prd_files <file name> -PRD_lib=<branch name>                                     -old_file=<file name>   where:        file name          = New PRD file name.          run options:            -PRD_lib       = <OPS|SM4>       Difference new file against                                              OPS or SM4 reference file.            -old_file      = <file name>     Difference new file against                                              old file.

Data
		__version__ = ' 4/15/04'