python/mozboot/mozboot/archlinux.py

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4
   5 import subprocess
   6 import sys
   7
   8 from mozboot.base import BaseBootstrapper
   9 from mozboot.linux_common import LinuxBootstrapper
  10
  11
  12 class ArchlinuxBootstrapper(LinuxBootstrapper, BaseBootstrapper):
  13     """Archlinux experimental bootstrapper."""
  14
  15     def __init__(self, version, dist_id, **kwargs):
  16         print("Using an experimental bootstrapper for Archlinux.", file=sys.stderr)
  17         BaseBootstrapper.__init__(self, **kwargs)
  18
  19     def install_packages(self, packages):
  20         # watchman is not available via pacman
  21         packages = [p for p in packages if p != "watchman"]
  22         self.pacman_install(*packages)
  23
  24     def upgrade_mercurial(self, current):
  25         self.pacman_install("mercurial")
  26
  27     def pacman_install(self, *packages):
  28         def is_installed(package):
  29             pacman_query = subprocess.run(
  30                 ["pacman", "-Q", package],
  31                 stdout=subprocess.PIPE,
  32                 stderr=subprocess.STDOUT,
  33                 check=False,
  34             )
  35             if pacman_query.returncode not in [0, 1]:
  36                 raise Exception(
  37                     f'Failed to query pacman whether "{package}" is installed: "{pacman_query.stdout}"'
  38                 )
  39             return pacman_query.returncode == 0
  40
  41         packages = [p for p in packages if not is_installed(p)]
  42         # avoid sudo prompt if all packages are installed already
  43         if not packages:
  44             return
  45
  46         command = ["pacman", "-S", "--needed"]
  47         if self.no_interactive:
  48             command.append("--noconfirm")
  49
  50         command.extend(packages)
  51
  52         self.run_as_root(command)