py3: java-layers

#!/usr/bin/env python

from __future__ import print_function

import os

import re

import sys

def itervalues(obj):

  if hasattr(obj, 'itervalues'):

    return obj.itervalues()

  return obj.values()

def fail_with_usage():

  sys.stderr.write("usage: java-layers.py DEPENDENCY_FILE SOURCE_DIRECTORIES...\n")

  sys.stderr.write("\n")

        if upper in deps:

          recurse(obj, deps[upper], visited)

    self.deps = deps

    self.parts = [(dep.lower.split('.'),dep) for dep in deps.itervalues()]

    self.parts = [(dep.lower.split('.'),dep) for dep in itervalues(deps)]

    # transitive closure of dependencies

    for dep in deps.itervalues():

    for dep in itervalues(deps):

      recurse(dep, dep, [])

    # disallow everything from the low level components

    for dep in deps.itervalues():

    for dep in itervalues(deps):

      if dep.lowlevel:

        for d in deps.itervalues():

        for d in itervalues(deps):

          if dep != d and not d.legacy:

            dep.transitive.add(d.lower)

    # disallow the 'top' components everywhere but in their own package

    for dep in deps.itervalues():

    for dep in itervalues(deps):

      if dep.top and not dep.legacy:

        for d in deps.itervalues():

        for d in itervalues(deps):

          if dep != d and not d.legacy:

            d.transitive.add(dep.lower)

    for dep in deps.itervalues():

    for dep in itervalues(deps):

      dep.transitive = set([x+"." for x in dep.transitive])

    if False:

      for dep in deps.itervalues():

        print "-->", dep.lower, "-->", dep.transitive

      for dep in itervalues(deps):

        print("-->", dep.lower, "-->", dep.transitive)

  # Lookup the dep object for the given package.  If pkg is a subpackage

  # of one with a rule, that one will be returned.  If no matches are found,

    imports.append(m.group(1))

  # Do the checking

  if False:

    print filename

    print "'%s' --> %s" % (pkg, imports)

    print(filename)

    print("'%s' --> %s" % (pkg, imports))

  dep = deps.lookup(pkg)

  if not dep:

    sys.stderr.write(("%s: Error: Package does not appear in dependency file: "