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