I'm writing a function to create a string that gets longer iff an argument
is defined. In there a more elegant way than nesting all those ifs?
def format_rsync_src_string(args, server="RSYNC"):
""" Format an rsync source directory string. """
if args.server is None:
raise CopyNightlyError("No rsync server provided.")
src = "{0}::".format(args.server)
if args.project not None:
src += "{0}/".format(args.project)
if args.version not None:
src += "{0}/".format(args.version)
if args.build not None:
src += "Build {0}".format(args.build)
return src
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