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#!/usr/bin/env python3
from __future__ import print_function
import sys
sys.path.append("/usr/share/botch")
from util import read_reduced_deps, read_weak_deps, read_fas
def checkfas(weak, droppable, fas, verbose=False):
modsrc = 0
fassize = 0
notdroppable = 0
result = list()
for src, deps in fas:
modsrc += 1
for d in deps:
fassize += 1
if d not in droppable[src] and d not in weak:
notdroppable += 1
result.append((src, d))
droppable = (fassize - notdroppable) / float(fassize)
if verbose:
print(modsrc, fassize, droppable, file=sys.stderr)
return result
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser(
description=(
"given any number of droppable dependencies and a "
+ "feedback arc set, show which edges in the feedback "
+ "arc set are not droppable"
)
)
parser.add_argument(
"--remove-weak",
type=read_weak_deps,
help="A filename containing a list of weak build " + "dependencies",
)
parser.add_argument(
"--remove-reduced",
type=read_reduced_deps,
help="One or more filename containing a list of "
+ "droppable build dependencies, separated by "
+ "commas.",
)
parser.add_argument("fas", type=read_fas, help="A feedback arc set")
parser.add_argument("-v", "--verbose", action="store_true", help="be verbose")
args = parser.parse_args()
result = checkfas(args.remove_weak, args.droppable, args.fas, args.verbose)
for r in result:
print(r)
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