checking in before i change a regex pattern. this currently will grab commented out defaults, but we don't want that since it complicates things - so we hardcode in shipped defaults.

2019-12-30 12:59:52 -05:00
parent 7f3b8b98aa
commit c22b473b49
9 changed files with 124 additions and 18 deletions
--- a/aif/pacman/init.py
+++ b/aif/pacman/init.py
@@ -0,0 +1,68 @@
+# We can manually bootstrap and alter pacman's keyring. But check the bootstrap tarball; we might not need to.
+# TODO.
+
+import configparser
+import logging
+import os
+import re
+##
+import pyalpm
+import gpg
+##
+from . import _common
+
+
+_logger = logging.getLogger(__name__)
+
+
+_skipconfline_re = re.compile(r'^[ \t]*#([ \t]+.*)?$')
+
+
+class PackageManager(object):
+    def __init__(self, chroot_base):
+        self.chroot_base = chroot_base
+        self.pacman_dir = os.path.join(self.chroot_base, 'var', 'lib', 'pacman')
+        self.configfile = os.path.join(self.chroot_base, 'etc', 'pacman.conf')
+        self.config = None
+        self._parseConf()
+
+    def _parseConf(self):
+        _cf = []
+        with open(self.configfile, 'r') as fh:
+            for line in fh.read().splitlines():
+                if _skipconfline_re.search(line) or line.strip() == '':
+                    continue
+                _cf.append(re.sub(r'^#', '', line))
+        self.config = configparser.ConfigParser(allow_no_value = True,
+                                                interpolation = None,
+                                                strict = False,
+                                                dict_type = _common.MultiOrderedDict)
+        self.config.optionxform = str
+        self.config.read_string('\n'.join(_cf))
+        self.opts = {'Architecture': 'auto',
+                     'CacheDir': '/var/cache/pacman/pkg/',
+                     'CheckSpace': None,
+                     'CleanMethod': 'KeepInstalled',
+                     # 'Color': None,
+                     'DBPath': '/var/lib/pacman/',
+                     'GPGDir': '/etc/pacman.d/gnupg/',
+                     'HoldPkg': 'pacman glibc',
+                     'HookDir': '/etc/pacman.d/hooks/',
+                     'IgnoreGroup': '',
+                     'IgnorePkg': '',
+                     'LocalFileSigLevel': 'Optional',
+                     'LogFile': '/var/log/pacman.log',
+                     'NoExtract': '',
+                     'NoUpgrade': '',
+                     'RemoteFileSigLevel': 'Required',
+                     'RootDir': '/',
+                     'SigLevel': 'Required DatabaseOptional',
+                     # 'TotalDownload': None,
+                     # 'UseSyslog': None,
+                     # 'VerbosePkgLists': None,
+                     'XferCommand': '/usr/bin/curl -L -C - -f -o %o %u'
+                     }
+        self.distro_repos = ['']
+        _opts = dict(self.config.items('options'))
+        self.opts.update(_opts)
+        self.config.remove_section('options')
--- a/aif/pacman/_common.py
+++ b/aif/pacman/_common.py
@@ -0,0 +1,19 @@
+import configparser
+import logging
+from collections import OrderedDict
+
+
+_logger = logging.getLogger('pacman:_common')
+
+
+class MultiOrderedDict(OrderedDict):
+    # Thanks, dude: https://stackoverflow.com/a/38286559/733214
+    def __setitem__(self, key, value):
+        if key in self:
+            if isinstance(value, list):
+                self[key].extend(value)
+                return(None)
+            elif isinstance(value, str):
+                if len(self[key]) > 1:
+                    return(None)
+        super(MultiOrderedDict, self).__setitem__(key, value)