150 lines
5.0 KiB
Python
150 lines
5.0 KiB
Python
from distutils.util import convert_path
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from distutils import log
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from distutils.errors import DistutilsOptionError
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import distutils
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import os
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import configparser
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from setuptools import Command
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__all__ = ['config_file', 'edit_config', 'option_base', 'setopt']
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def config_file(kind="local"):
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"""Get the filename of the distutils, local, global, or per-user config
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`kind` must be one of "local", "global", or "user"
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"""
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if kind == 'local':
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return 'setup.cfg'
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if kind == 'global':
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return os.path.join(
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os.path.dirname(distutils.__file__), 'distutils.cfg'
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)
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if kind == 'user':
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dot = os.name == 'posix' and '.' or ''
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return os.path.expanduser(convert_path("~/%spydistutils.cfg" % dot))
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raise ValueError(
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"config_file() type must be 'local', 'global', or 'user'", kind
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)
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def edit_config(filename, settings, dry_run=False):
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"""Edit a configuration file to include `settings`
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`settings` is a dictionary of dictionaries or ``None`` values, keyed by
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command/section name. A ``None`` value means to delete the entire section,
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while a dictionary lists settings to be changed or deleted in that section.
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A setting of ``None`` means to delete that setting.
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"""
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log.debug("Reading configuration from %s", filename)
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opts = configparser.RawConfigParser()
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opts.optionxform = lambda x: x
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opts.read([filename])
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for section, options in settings.items():
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if options is None:
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log.info("Deleting section [%s] from %s", section, filename)
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opts.remove_section(section)
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else:
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if not opts.has_section(section):
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log.debug("Adding new section [%s] to %s", section, filename)
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opts.add_section(section)
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for option, value in options.items():
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if value is None:
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log.debug(
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"Deleting %s.%s from %s",
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section, option, filename
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)
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opts.remove_option(section, option)
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if not opts.options(section):
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log.info("Deleting empty [%s] section from %s",
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section, filename)
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opts.remove_section(section)
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else:
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log.debug(
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"Setting %s.%s to %r in %s",
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section, option, value, filename
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)
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opts.set(section, option, value)
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log.info("Writing %s", filename)
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if not dry_run:
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with open(filename, 'w') as f:
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opts.write(f)
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class option_base(Command):
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"""Abstract base class for commands that mess with config files"""
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user_options = [
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('global-config', 'g',
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"save options to the site-wide distutils.cfg file"),
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('user-config', 'u',
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"save options to the current user's pydistutils.cfg file"),
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('filename=', 'f',
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"configuration file to use (default=setup.cfg)"),
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]
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boolean_options = [
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'global-config', 'user-config',
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]
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def initialize_options(self):
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self.global_config = None
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self.user_config = None
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self.filename = None
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def finalize_options(self):
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filenames = []
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if self.global_config:
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filenames.append(config_file('global'))
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if self.user_config:
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filenames.append(config_file('user'))
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if self.filename is not None:
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filenames.append(self.filename)
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if not filenames:
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filenames.append(config_file('local'))
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if len(filenames) > 1:
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raise DistutilsOptionError(
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"Must specify only one configuration file option",
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filenames
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)
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self.filename, = filenames
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class setopt(option_base):
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"""Save command-line options to a file"""
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description = "set an option in setup.cfg or another config file"
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user_options = [
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('command=', 'c', 'command to set an option for'),
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('option=', 'o', 'option to set'),
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('set-value=', 's', 'value of the option'),
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('remove', 'r', 'remove (unset) the value'),
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] + option_base.user_options
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boolean_options = option_base.boolean_options + ['remove']
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def initialize_options(self):
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option_base.initialize_options(self)
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self.command = None
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self.option = None
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self.set_value = None
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self.remove = None
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def finalize_options(self):
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option_base.finalize_options(self)
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if self.command is None or self.option is None:
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raise DistutilsOptionError("Must specify --command *and* --option")
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if self.set_value is None and not self.remove:
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raise DistutilsOptionError("Must specify --set-value or --remove")
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def run(self):
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edit_config(
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self.filename, {
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self.command: {self.option.replace('-', '_'): self.set_value}
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},
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self.dry_run
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)
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