90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
import os
|
|
import sys
|
|
import importlib
|
|
|
|
import portage
|
|
from portage.const import VDB_PATH
|
|
from portage import _encodings
|
|
from portage import _shell_quote
|
|
from portage import _unicode_decode
|
|
from portage import _unicode_encode
|
|
|
|
|
|
# Stolen from the ebuild command
|
|
def package_from_ebuild(ebuild):
|
|
pf = None
|
|
if ebuild.endswith(".ebuild"):
|
|
pf = os.path.basename(ebuild)[:-7]
|
|
else:
|
|
return False
|
|
|
|
if not os.path.isabs(ebuild):
|
|
mycwd = os.getcwd()
|
|
# Try to get the non-canonical path from the PWD evironment variable,
|
|
# since the canonical path returned from os.getcwd() may may be
|
|
# unusable in cases where the directory stucture is built from
|
|
# symlinks.
|
|
pwd = os.environ.get('PWD', '')
|
|
if sys.hexversion < 0x3000000:
|
|
pwd = _unicode_decode(pwd, encoding=_encodings['content'],
|
|
errors='strict')
|
|
if pwd and pwd != mycwd and \
|
|
os.path.realpath(pwd) == mycwd:
|
|
mycwd = portage.normalize_path(pwd)
|
|
ebuild = os.path.join(mycwd, ebuild)
|
|
|
|
ebuild = portage.normalize_path(ebuild)
|
|
# portdbapi uses the canonical path for the base of the portage tree, but
|
|
# subdirectories of the base can be built from symlinks (like crossdev
|
|
# does).
|
|
ebuild_portdir = os.path.realpath(
|
|
os.path.dirname(os.path.dirname(os.path.dirname(ebuild))))
|
|
ebuild = os.path.join(ebuild_portdir, *ebuild.split(os.path.sep)[-3:])
|
|
vdb_path = os.path.join(portage.settings['ROOT'], VDB_PATH)
|
|
|
|
# Make sure that portdb.findname() returns the correct ebuild.
|
|
if ebuild_portdir != vdb_path and \
|
|
ebuild_portdir not in portage.portdb.porttrees:
|
|
if sys.hexversion >= 0x3000000:
|
|
os.environ["PORTDIR_OVERLAY"] = \
|
|
os.environ.get("PORTDIR_OVERLAY", "") + \
|
|
" " + _shell_quote(ebuild_portdir)
|
|
else:
|
|
os.environ["PORTDIR_OVERLAY"] = \
|
|
os.environ.get("PORTDIR_OVERLAY", "") + \
|
|
" " + _unicode_encode(_shell_quote(ebuild_portdir),
|
|
encoding=_encodings['content'], errors='strict')
|
|
|
|
portage.close_portdbapi_caches()
|
|
importlib.reload(portage)
|
|
del portage.portdb.porttrees[1:]
|
|
if ebuild_portdir != portage.portdb.porttree_root:
|
|
portage.portdb.porttrees.append(ebuild_portdir)
|
|
|
|
if not os.path.exists(ebuild):
|
|
return False
|
|
|
|
ebuild_split = ebuild.split("/")
|
|
cpv = "%s/%s" % (ebuild_split[-3], pf)
|
|
|
|
if not portage.catpkgsplit(cpv):
|
|
return False
|
|
|
|
if ebuild.startswith(os.path.join(portage.root, portage.const.VDB_PATH)):
|
|
mytree = "vartree"
|
|
|
|
portage_ebuild = portage.db[portage.root][mytree].dbapi.findname(cpv)
|
|
|
|
if os.path.realpath(portage_ebuild) != ebuild:
|
|
return False
|
|
|
|
else:
|
|
mytree = "porttree"
|
|
|
|
portage_ebuild = portage.portdb.findname(cpv)
|
|
|
|
if not portage_ebuild or portage_ebuild != ebuild:
|
|
return False
|
|
|
|
return cpv
|