1import libdnf5
2
3# Create a new Base object
4base = libdnf5.base.Base()
5
6# Optionally set installroot.
7#
8# Installroot is set to '/' when we're working with the system, but we can set
9# it to a different location. The Base instance will then work with the
10# installroot directory tree as its root for the rest of its lifetime.
11base_config = base.get_config()
12base_config.installroot = installroot
13
14# Optionally prevent of loading of plugins. Plugins are loaded by default from the host
15base_config.plugins = False
16
17# Optionally load configuration from the config files.
18#
19# The Base's config is initialized with default values, one of which is
20# "config_file_path". This contains the default path to the config file
21# ("/etc/dnf/dnf.conf"). If the file does not exist the distribution config file
22# is loaded. Function also loads configuration files from distribution and
23# user ("/etc/dnf/libdnf5.conf.d") drop-in directories.
24# Optionally set a custom value to "config_file_path" before calling this method
25# to load configuration from a another configuration file.
26base.load_config()
27
28# Optionally you can set and get vars
29# vars = base.get_vars().get()
30# vars.set('releasever', '33')
31#
32# Its value can be printed by get_value method
33# print(vars.get_value('releasever'))
34#
35# There are plans in the future to support the methods get() or get_priority()
36
37# Optionally set cachedir.
38#
39# By default, system cachedir or user cachedir is used, but we can set it to a
40# different location. This is useful for tests.
41base_config.cachedir = cachedir
42
43# Load vars and do other initialization (of libsolv pool, etc.) based on the
44# configuration. Locks the installroot and varsdir configuration values so
45# that they can't be changed.
46base.setup()