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#-*- coding: utf-8 -*-
# alpm.py
#
# Copyright (C) 2016 Patrick Griffis <tingping@tingping.se>
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
from __future__ import absolute_import
from tracer.resources.system import System
if System.distribution() in ["arch", "archarm"]:
import bisect
from .ipackageManager import IPackageManager
from tracer.resources.package import Package
from tracer.resources.collections import PackagesCollection
from tracer.resources.applications import Applications
import pyalpm
class Alpm(IPackageManager):
def __init__(self, *args, **kwargs):
self.opts = kwargs
self.handle = pyalpm.Handle('/', '/var/lib/pacman')
self.db = self.handle.get_localdb()
def packages_newer_than(self, unix_time):
"""
Returns list of packages which were modified between unix_time and present
"""
new_pkgs = PackagesCollection()
for pkg in self.db.pkgcache:
if pkg.installdate > unix_time:
new_pkgs.append(Package(pkg.name, pkg.installdate))
return new_pkgs
def package_files(self, pkg_name):
"""
Returns list of files provided by package
"""
pkg = self.db.get_pkg(pkg_name)
if not pkg:
return []
return ['/' + f[0] for f in pkg.files]
def load_package_info(self, package):
"""
From database load informations about given package and set them to it
"""
if not package:
return
pkg = self.db.get_pkg(package.name)
if not pkg:
return
package.description = pkg.desc
package.modified = pkg.installdate
# Don't have categories
def provided_by(self, app):
"""
Returns name of package which provides given application
"""
# We need a full path to the binary
process = app.instances[0]
return self._file_provided_by(process.exe)
def find_package(self, pkg_name, version):
"""
Find a package by name and some other input criteria
"""
pkg = self.db.get_pkg(pkg_name)
if pkg and pyalpm.vercmp(pkg.version, version) == 0:
return pkg
def compare_packages(self, package1, package2):
"""
vercmp returns:
< 0 if ver1 < ver2
0 if ver1 == ver2
> 0 if ver1 > ver2
"""
return pyalpm.vercmp(package1.version, package2.version)
@staticmethod
def _bsearch_list(l, item):
"""
Searches a sorted list, returns True if found
"""
i = bisect.bisect_left(l, item)
if i != len(l) and l[i] == item:
return True
else:
return False
def _file_provided_by(self, file_name):
"""
Returns name of package which provides given file
"""
# This is a bit slow
for pkg in self.db.pkgcache:
files = [f[0] for f in pkg.files]
if self._bsearch_list(files, file_name[1:]):
return Package(pkg.name, pkg.installdate)
else:
return None
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