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#!/usr/bin/python
# Copyright 2003-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import subprocess
import os
import sys
import gentoolkit.pprinter as pp
from gentoolkit.eprefix import EPREFIX
import portage
class PkgIndex:
"""Handle the cleaning of the binpkg Package
Index file
@type output: class
@param output: optional output class for printing
"""
def __init__(self, controller=None):
self.controller = controller
# backup command line call
self.emaint_cmd = "%s/usr/sbin/emaint --fix binhost" % EPREFIX
def _get_emaint_binhost(self):
"""Obtain a reference to the binhost module class
@sets: self.binhost to BinhostHandler class
@rtype: boolean
"""
# About noqa below: I don't understand how this code can run at all.
# TODO: verify soundness
try:
self.emaint_control = Modules() # noqa
self.binhost = self.emaint_control._get_class("binhost")
except InvalidModuleName as er: # noqa
print(pp.error("Error importing emaint binhost module"), file=sys.stderr)
print(pp.error("Original error: " + er), file=sys.stderr)
except:
return False
return True
def _load_modules(self):
"""Import the emaint modules and report the success/fail of them"""
try:
from emaint.module import Modules # noqa
from emaint.main import TaskHandler # noqa
except ImportError:
return False
return True
def clean_pkgs_index(
self,
):
"""This will clean the binpkgs packages index file"""
go = self._load_modules()
if go:
if self.get_emaint_binhost():
self.taskmaster = TaskHandler(show_progress_bar=True) # noqa
tasks = [self.binhost]
self.taskmaster.run_tasks(tasks)
def call_emaint(self):
"""Run the stand alone emaint script from
a subprocess call.
@rtype: integer
@return: the difference in file size
"""
file_ = os.path.join(portage.settings["PKGDIR"], "Packages")
statinfo = os.stat(file_)
size1 = statinfo.st_size
try:
retcode = subprocess.call(self.emaint_cmd, shell=True)
if retcode < 0:
print(
pp.error("Child was terminated by signal" + str(-retcode)),
file=sys.stderr,
)
except OSError as e:
print(pp.error("Execution failed:" + e), file=sys.stderr)
print()
statinfo = os.stat(file_)
clean_size = size1 - statinfo.st_size
self.controller(clean_size, "Packages Index", file_, "Index")
return clean_size
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