code.delx.au - monosys/blob - 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 sorted(os.listdir(PACORPHAN_PATH)):
  31     if filename.startswith("."):
  32         continue
  33     full_filename = os.path.join(PACORPHAN_PATH, filename)
  34     for pkg in codecs.open(full_filename, "r", "utf-8"):
  35         pkg = strip_comment(pkg).strip()
  36         if not pkg:
  37             continue
  38         if filename[0] != "~":
  39             if pkg in keep_pkg_list:
  40                 print("# Duplicate entry:", pkg, "in file", filename)
  41                 continue
  42             keep_pkg_list.append(pkg)
  43         else:
  44             if pkg not in keep_pkg_list:
  45                 print("# Redundant removal:", pkg, "in file", filename)
  46                 continue
  47             keep_pkg_list.remove(pkg)
  48
  49 for pkg in run(["pacman", "-Qq"]):
  50     installed_pkg_list.append(pkg)
  51
  52 for pkg in run(["pacman", "-Qttq"]):
  53     unneeded_pkg_list.append(pkg)
  54
  55 for pkg in run(["pacman", "-Qeq"]):
  56     explicit_pkg_list.append(pkg)
  57
  58
  59 for pkg in keep_pkg_list:
  60     if pkg in unneeded_pkg_list:
  61         unneeded_pkg_list.remove(pkg)
  62
  63     if pkg in explicit_pkg_list:
  64         explicit_pkg_list.remove(pkg)
  65     else:
  66         if pkg in installed_pkg_list:
  67             mark_explicit_list.append(pkg)
  68         else:
  69             need_install_list.append(pkg)
  70
  71
  72 if unneeded_pkg_list:
  73     print("# Found packages to remove")
  74     print("sudo pacman -R " + " ".join(unneeded_pkg_list))
  75     print()
  76
  77 if explicit_pkg_list:
  78     print("# Found explicitly installed packages to keep")
  79     print("echo " + " ".join(explicit_pkg_list) + " | tr ' ' '\\n' >> ~/.pacorphan/keep")
  80     print()
  81
  82 if mark_explicit_list:
  83     print("# Found packages which should be marked as explicitly installed")
  84     print("sudo pacman -D --asexplicit " + " ".join(mark_explicit_list))
  85     print()
  86
  87 if need_install_list:
  88     print("# Found packages which should be installed")
  89     print("sudo pacman -S " + " ".join(need_install_list))
  90     print()
  91