#!/usr/bin/python3

import os
import sys
import portage
from portage.dep import dep_getkey
from portage.util import grabfile_package, stack_lists

# this loads files from the profiles ...
# wrap it here to take care of the different
# ways portage handles stacked profiles


def scan_profile(path):
    return stack_lists([grabfile_package(os.path.join(x, path)) for x in portage.settings.profiles], incremental=1)


# loaded the stacked packages / packages.build files
pkgs = scan_profile("packages")
buildpkgs = scan_profile("packages.build")

# go through the packages list and strip off all the
# crap to get just the <category>/<package> ... then
# search the buildpkg list for it ... if it's found,
# we replace the buildpkg item with the one in the
# system profile (it may have <,>,=,etc... operators
# and version numbers)
for pkg in pkgs:
    try:
        bidx = buildpkgs.index(dep_getkey(pkg))
        buildpkgs[bidx] = pkg
        if buildpkgs[bidx][0:1] == "*":
            buildpkgs[bidx] = buildpkgs[bidx][1:]
    except Exception:
        pass

for b in buildpkgs:
    sys.stdout.write(b + " ")