mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-11-23 15:38:14 +01:00
227 lines
7.2 KiB
Python
227 lines
7.2 KiB
Python
import logging
|
|
import os
|
|
import subprocess
|
|
|
|
from pip._internal.basecommand import Command
|
|
from pip._internal.configuration import Configuration, kinds
|
|
from pip._internal.exceptions import PipError
|
|
from pip._internal.locations import venv_config_file
|
|
from pip._internal.status_codes import ERROR, SUCCESS
|
|
from pip._internal.utils.misc import get_prog
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ConfigurationCommand(Command):
|
|
"""Manage local and global configuration.
|
|
|
|
Subcommands:
|
|
|
|
list: List the active configuration (or from the file specified)
|
|
edit: Edit the configuration file in an editor
|
|
get: Get the value associated with name
|
|
set: Set the name=value
|
|
unset: Unset the value associated with name
|
|
|
|
If none of --user, --global and --venv are passed, a virtual
|
|
environment configuration file is used if one is active and the file
|
|
exists. Otherwise, all modifications happen on the to the user file by
|
|
default.
|
|
"""
|
|
|
|
name = 'config'
|
|
usage = """
|
|
%prog [<file-option>] list
|
|
%prog [<file-option>] [--editor <editor-path>] edit
|
|
|
|
%prog [<file-option>] get name
|
|
%prog [<file-option>] set name value
|
|
%prog [<file-option>] unset name
|
|
"""
|
|
|
|
summary = "Manage local and global configuration."
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(ConfigurationCommand, self).__init__(*args, **kwargs)
|
|
|
|
self.configuration = None
|
|
|
|
self.cmd_opts.add_option(
|
|
'--editor',
|
|
dest='editor',
|
|
action='store',
|
|
default=None,
|
|
help=(
|
|
'Editor to use to edit the file. Uses VISUAL or EDITOR '
|
|
'environment variables if not provided.'
|
|
)
|
|
)
|
|
|
|
self.cmd_opts.add_option(
|
|
'--global',
|
|
dest='global_file',
|
|
action='store_true',
|
|
default=False,
|
|
help='Use the system-wide configuration file only'
|
|
)
|
|
|
|
self.cmd_opts.add_option(
|
|
'--user',
|
|
dest='user_file',
|
|
action='store_true',
|
|
default=False,
|
|
help='Use the user configuration file only'
|
|
)
|
|
|
|
self.cmd_opts.add_option(
|
|
'--venv',
|
|
dest='venv_file',
|
|
action='store_true',
|
|
default=False,
|
|
help='Use the virtualenv configuration file only'
|
|
)
|
|
|
|
self.parser.insert_option_group(0, self.cmd_opts)
|
|
|
|
def run(self, options, args):
|
|
handlers = {
|
|
"list": self.list_values,
|
|
"edit": self.open_in_editor,
|
|
"get": self.get_name,
|
|
"set": self.set_name_value,
|
|
"unset": self.unset_name
|
|
}
|
|
|
|
# Determine action
|
|
if not args or args[0] not in handlers:
|
|
logger.error("Need an action ({}) to perform.".format(
|
|
", ".join(sorted(handlers)))
|
|
)
|
|
return ERROR
|
|
|
|
action = args[0]
|
|
|
|
# Determine which configuration files are to be loaded
|
|
# Depends on whether the command is modifying.
|
|
try:
|
|
load_only = self._determine_file(
|
|
options, need_value=(action in ["get", "set", "unset", "edit"])
|
|
)
|
|
except PipError as e:
|
|
logger.error(e.args[0])
|
|
return ERROR
|
|
|
|
# Load a new configuration
|
|
self.configuration = Configuration(
|
|
isolated=options.isolated_mode, load_only=load_only
|
|
)
|
|
self.configuration.load()
|
|
|
|
# Error handling happens here, not in the action-handlers.
|
|
try:
|
|
handlers[action](options, args[1:])
|
|
except PipError as e:
|
|
logger.error(e.args[0])
|
|
return ERROR
|
|
|
|
return SUCCESS
|
|
|
|
def _determine_file(self, options, need_value):
|
|
file_options = {
|
|
kinds.USER: options.user_file,
|
|
kinds.GLOBAL: options.global_file,
|
|
kinds.VENV: options.venv_file
|
|
}
|
|
|
|
if sum(file_options.values()) == 0:
|
|
if not need_value:
|
|
return None
|
|
# Default to user, unless there's a virtualenv file.
|
|
elif os.path.exists(venv_config_file):
|
|
return kinds.VENV
|
|
else:
|
|
return kinds.USER
|
|
elif sum(file_options.values()) == 1:
|
|
# There's probably a better expression for this.
|
|
return [key for key in file_options if file_options[key]][0]
|
|
|
|
raise PipError(
|
|
"Need exactly one file to operate upon "
|
|
"(--user, --venv, --global) to perform."
|
|
)
|
|
|
|
def list_values(self, options, args):
|
|
self._get_n_args(args, "list", n=0)
|
|
|
|
for key, value in sorted(self.configuration.items()):
|
|
logger.info("%s=%r", key, value)
|
|
|
|
def get_name(self, options, args):
|
|
key = self._get_n_args(args, "get [name]", n=1)
|
|
value = self.configuration.get_value(key)
|
|
|
|
logger.info("%s", value)
|
|
|
|
def set_name_value(self, options, args):
|
|
key, value = self._get_n_args(args, "set [name] [value]", n=2)
|
|
self.configuration.set_value(key, value)
|
|
|
|
self._save_configuration()
|
|
|
|
def unset_name(self, options, args):
|
|
key = self._get_n_args(args, "unset [name]", n=1)
|
|
self.configuration.unset_value(key)
|
|
|
|
self._save_configuration()
|
|
|
|
def open_in_editor(self, options, args):
|
|
editor = self._determine_editor(options)
|
|
|
|
fname = self.configuration.get_file_to_edit()
|
|
if fname is None:
|
|
raise PipError("Could not determine appropriate file.")
|
|
|
|
try:
|
|
subprocess.check_call([editor, fname])
|
|
except subprocess.CalledProcessError as e:
|
|
raise PipError(
|
|
"Editor Subprocess exited with exit code {}"
|
|
.format(e.returncode)
|
|
)
|
|
|
|
def _get_n_args(self, args, example, n):
|
|
"""Helper to make sure the command got the right number of arguments
|
|
"""
|
|
if len(args) != n:
|
|
msg = (
|
|
'Got unexpected number of arguments, expected {}. '
|
|
'(example: "{} config {}")'
|
|
).format(n, get_prog(), example)
|
|
raise PipError(msg)
|
|
|
|
if n == 1:
|
|
return args[0]
|
|
else:
|
|
return args
|
|
|
|
def _save_configuration(self):
|
|
# We successfully ran a modifying command. Need to save the
|
|
# configuration.
|
|
try:
|
|
self.configuration.save()
|
|
except Exception:
|
|
logger.error(
|
|
"Unable to save configuration. Please report this as a bug.",
|
|
exc_info=1
|
|
)
|
|
raise PipError("Internal Error.")
|
|
|
|
def _determine_editor(self, options):
|
|
if options.editor is not None:
|
|
return options.editor
|
|
elif "VISUAL" in os.environ:
|
|
return os.environ["VISUAL"]
|
|
elif "EDITOR" in os.environ:
|
|
return os.environ["EDITOR"]
|
|
else:
|
|
raise PipError("Could not determine editor to use.")
|