code.delx.au - monosys/blob - scripts/pacorphan

   1 #!/usr/bin/python3
   2
   3 import codecs
   4 import subprocess
   5 import os
   6 import sys
   7
   8 PACORPHAN_PATH = os.path.expanduser("~/.pacorphan")
   9
  10 def run(cmd):
  11     for line in subprocess.check_output(cmd).decode("utf-8").split("\n"):
  12         line = line.strip()
  13         if line:
  14             yield line
  15
  16 def strip_comment(line):
  17     pos = line.find("#")
  18     if pos >= 0:
  19         line = line[:pos]
  20     return line.strip()
  21
  22
  23 keep_pkg_list = []
  24 mark_explicit_list = []
  25 need_install_list = []
  26 unneeded_pkg_list = []
  27 installed_pkg_list = []
  28 explicit_pkg_list = []
  29
  30 for filename in os.listdir(PACORPHAN_PATH):
  31     if filename.startswith("."):
  32         continue
  33     filename = os.path.join(PACORPHAN_PATH, filename)
  34     for pkg in codecs.open(filename, "r", "utf-8"):
  35         pkg = strip_comment(pkg)
  36         if pkg in keep_pkg_list:
  37             print("# Duplicate entry: " + pkg)
  38         if pkg:
  39             keep_pkg_list.append(pkg.strip())
  40
  41 for pkg in run(["pacman", "-Qq"]):
  42     installed_pkg_list.append(pkg)
  43
  44 for pkg in run(["pacman", "-Qttq"]):
  45     unneeded_pkg_list.append(pkg)
  46
  47 for pkg in run(["pacman", "-Qeq"]):
  48     explicit_pkg_list.append(pkg)
  49
  50
  51 for pkg in keep_pkg_list:
  52     if pkg in unneeded_pkg_list:
  53         unneeded_pkg_list.remove(pkg)
  54
  55     if pkg in explicit_pkg_list:
  56         explicit_pkg_list.remove(pkg)
  57     else:
  58         if pkg in installed_pkg_list:
  59             mark_explicit_list.append(pkg)
  60         else:
  61             need_install_list.append(pkg)
  62
  63
  64 if unneeded_pkg_list:
  65     print("# Found packages to remove")
  66     print("sudo pacman -R " + " ".join(unneeded_pkg_list))
  67     print()
  68
  69 if explicit_pkg_list:
  70     print("# Found explicitly installed packages to keep")
  71     print("echo " + " ".join(explicit_pkg_list) + " | tr ' ' '\\n' >> ~/.pacorphan/keep")
  72     print()
  73
  74 if mark_explicit_list:
  75     print("# Found packages which should be marked as explicitly installed")
  76     print("sudo pacman -D --asexplicit " + " ".join(mark_explicit_list))
  77     print()
  78
  79 if need_install_list:
  80     print("# Found packages which should be installed")
  81     print("sudo pacman -S " + " ".join(need_install_list))
  82     print()
  83