blueprinting/pacman.py
2015-04-06 19:25:37 +02:00

173 lines
6.1 KiB
Python

#!/usr/bin/env python3
import os
import subprocess
import sys
import tools
PACKAGE_BASE_PATH = "/var/cache/pacman/pkg/"
ARCH = "x86_64"
def is_installed(package):
"""
Check whether the specified package is installed or not.
"""
try:
subprocess.check_output(["pacman", "-Qs", package])
return True
except subprocess.CalledProcessError:
return False
def get_file_from_package(file):
"""
Get the specified file from the corresponding package archive from pacman
cache.
Returns None and print an error message if unable to find the archive in the
pacman cache.
"""
# /var/cache/pacman/pkg/lvm2-2.02.116-1-x86_64.pkg.tar.xz
# Find the package
try:
pacman_raw = subprocess.check_output(["pacman", "-Qo", file])
pacman_raw = pacman_raw.decode("utf-8").strip()
package, version = pacman_raw.split(" ")[-2:]
except subprocess.CalledProcessError:
print("Unable to find a package owning file " + file + ".",
file=sys.stderr)
return None
# Remove leading / if present
file = file.lstrip("/")
# Get the path to the package
package_archive = package + "-" + version + "-" + ARCH + ".pkg.tar.xz"
package_path = PACKAGE_BASE_PATH + package_archive
# Untar the package file
try:
raw = subprocess.check_output(["bsdtar", "-xOf", package_path, file],
stderr=open(os.devnull, 'w'))
raw = raw.decode("utf-8")
except subprocess.CalledProcessError:
try:
package_path = package_path.replace(ARCH, "any")
raw = subprocess.check_output(["bsdtar", "-xOf", package_path, file],
stderr=open(os.devnull, 'w'))
raw = raw.decode("utf-8")
except subprocess.CalledProcessError:
print("Unable to untar package archive " + package_path + ".",
file=sys.stderr)
return None
return raw
def list_packages_in_group(group):
"""
List all the packages member of a given group.
"""
pacman_raw = subprocess.check_output(["pacman", "-Sg", group])
pacman_raw = pacman_raw.decode("utf-8").strip()
return [i.split(" ")[1] for i in pacman_raw.split("\n")]
def list_modified_config_files(packages=[]):
"""
List all the manually modified configuration files.
packages is an optionnal filtering list of packages. Defaults to [] which
means "all the packages".
"""
# TODO: diff
pacman_raw = subprocess.check_output(["pacman", "-Qii"] + packages)
pacman_raw = pacman_raw.decode("utf-8").strip()
modified_list = [i.split("\t")[1]
for i in pacman_raw.split("\n")
if i.startswith("MODIFIED")]
return modified_list
def list_installed_packages():
"""
List all the installed packages (native, not AUR).
If a group of packages is completely installed, those packages will be
replaced by the matching group name.
"""
# Get a list of all the explicitly installed packages
pacman_packages_raw = subprocess.check_output(["pacman", "-Qenq"])
pacman_packages_raw = pacman_packages_raw.decode("utf-8").strip()
packages_list = pacman_packages_raw.split("\n")
# Get a list of all the explicitly installed packages, part of a group
pacman_groups_raw = subprocess.check_output(["pacman", "-Qgenq"])
pacman_groups_raw = pacman_groups_raw.decode("utf-8").strip()
# Store the installed packages of each group
groups_packages = {}
for i in pacman_groups_raw.split("\n"):
group, package = i.split(" ")
if group in groups_packages:
groups_packages[group] += [package]
else:
groups_packages[group] = [package]
# Check if the whole group has been installed
for group in groups_packages:
# List of packages in the group not explicitly installed
diff = set(list_packages_in_group(group)).difference(
set(groups_packages[group]))
# Check that they are installed anyway
diff_are_all_installed = True
for package in diff:
if package not in packages_list:
diff_are_all_installed = False
break
if diff_are_all_installed:
# If the whole group has been installed, replace its packages in
# the packages list by itself
for package in groups_packages[group]:
try:
packages_list.remove(package)
except ValueError:
pass
packages_list.append(group)
return packages_list
def list_installed_aur_packages():
"""
List all the explicitly installed AUR packages.
"""
pacman_raw = subprocess.check_output(["pacman", "-Qemq"])
pacman_raw = pacman_raw.decode("utf-8").split("\n")
return pacman_raw
def list_new_config_files(ignore_binaries=True):
"""
List all the config files under /etc that are not directly coming from a
packet.
"""
# Get all the config files under /etc owned by a package
pacman = subprocess.Popen(["pacman", "-Qq"],
stdout=subprocess.PIPE)
pacman_raw = subprocess.check_output(["pacman", "-Ql", "-"],
stdin=pacman.stdout)
pacman_raw = pacman_raw.decode("utf-8").strip()
etc_files = [i.split(" ")[-1] for i in pacman_raw.split("\n")]
etc_files = [i
for i in etc_files
if i.startswith("/etc") and os.path.isfile(i)]
# Get all the files under /etc, in the filesystem
fs_etc_files = tools.list_directory("/etc/", lambda x: os.path.isfile(x))
# Diff the two
raw_diff = set(fs_etc_files).difference(set(etc_files))
diff = []
# Filter etc files
for i in raw_diff:
# Do not append if binary file
if ignore_binaries:
check_binary_raw = subprocess.check_output(["file", i])
check_binary_raw = check_binary_raw.decode("utf-8")
if "text" not in check_binary_raw:
continue
diff.append(i)
return diff