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mpv/waftools/features.py
Jan Ekström 7b9e024f37 waftools/features: add forgotten enable variants for enabled features
This brings enabled features on the same level as disabled and
auto-detected features by having both alternatives available.

Looking at the commit message of 652895abdc
this seems to have been the intent from the start, but this specific
definition was missing from the option creation in Features.
2021-09-20 00:43:12 +02:00

75 lines
2.4 KiB
Python

from waflib.Options import OptionsContext
import optparse
class Feature(object):
def __init__(self, group, feature):
self.group = group
self.identifier, self.attributes = feature['name'], feature
def add_options(self):
[self.add_option(option_rule) for option_rule in self.option_rules()]
def add_option(self, rule):
self.group.add_option(self.option(rule['state']),
action=rule['action'],
default=rule['default'],
dest=self.storage(),
help=self.help(rule['state']))
# private
def option_rules(self):
return {
'autodetect': [
{'state': 'disable', 'action': 'store_false', 'default': None},
{'state': 'enable', 'action': 'store_true', 'default': None},
],
'disable': [
{'state': 'disable', 'action': 'store_false', 'default': False},
{'state': 'enable', 'action': 'store_true', 'default': False},
],
'enable': [
{'state': 'disable', 'action': 'store_false', 'default': True},
{'state': 'enable', 'action': 'store_true', 'default': True},
],
}[self.behaviour()]
def behaviour(self):
if 'default' in self.attributes:
return self.attributes['default']
else:
return 'autodetect'
def option(self, state):
return "--{0}-{1}".format(state, self.identifier)
def help(self, state):
default = self.behaviour()
if (default, state) == ("autodetect", "enable") or default == state:
return optparse.SUPPRESS_HELP
return "{0} {1} [{2}]" \
.format(state, self.attributes['desc'], default)
def storage(self):
return "enable_{0}".format(self.identifier)
def add_feature(group, feature):
Feature(group, feature).add_options()
def parse_features(opt, group_name, features):
def is_feature(dep):
return dep['name'].find('--') >= 0
def strip_feature(dep):
dep['name'] = dep['name'].lstrip('-')
return dep
features = [strip_feature(dep) for dep in features if is_feature(dep)]
group = opt.get_option_group(group_name)
if not group:
group = opt.add_option_group(group_name)
[add_feature(group, feature) for feature in features]
OptionsContext.parse_features = parse_features