162 lines
5.1 KiB
Python
162 lines
5.1 KiB
Python
from __future__ import annotations
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import json
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import typing as t
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import click
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import click.shell_completion
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from .. import config as tutor_config
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from .. import env, exceptions, fmt
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from .. import interactive as interactive_config
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from .. import serialize
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from ..types import Config, ConfigValue
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from .context import Context
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@click.group(
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name="config",
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short_help="Configure Open edX",
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help="""Configure Open edX and store configuration values in $TUTOR_ROOT/config.yml""",
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)
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def config_command() -> None:
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pass
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class ConfigKeyParamType(click.ParamType):
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name = "configkey"
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def shell_complete(
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self, ctx: click.Context, param: click.Parameter, incomplete: str
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) -> list[click.shell_completion.CompletionItem]:
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return [
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click.shell_completion.CompletionItem(key)
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for key, _value in self._shell_complete_config_items(ctx, incomplete)
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]
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@staticmethod
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def _shell_complete_config_items(
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ctx: click.Context, incomplete: str
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) -> list[tuple[str, ConfigValue]]:
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# Here we want to auto-complete the name of the config key. For that we need to
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# figure out the list of enabled plugins, and for that we need the project root.
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# The project root would ordinarily be stored in ctx.obj.root, but during
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# auto-completion we don't have access to our custom Tutor context. So we resort
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# to a dirty hack, which is to examine the grandparent context.
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root = getattr(
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getattr(getattr(ctx, "parent", None), "parent", None), "params", {}
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).get("root", "")
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config = tutor_config.load_full(root)
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return [
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(key, value) for key, value in config.items() if key.startswith(incomplete)
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]
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class ConfigKeyValParamType(ConfigKeyParamType):
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"""
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Parser for <KEY>=<YAML VALUE> command line arguments.
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"""
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name = "configkeyval"
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def convert(self, value: str, param: t.Any, ctx: t.Any) -> tuple[str, t.Any]:
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result = serialize.parse_key_value(value)
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if result is None:
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self.fail(f"'{value}' is not of the form 'key=value'.", param, ctx)
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return result
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def shell_complete(
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self, ctx: click.Context, param: click.Parameter, incomplete: str
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) -> list[click.shell_completion.CompletionItem]:
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"""
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Nice and friendly <KEY>=<VAL> auto-completion.
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"""
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if "=" not in incomplete:
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# Auto-complete with '<KEY>='. Note the single quotes which allow users to
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# further auto-complete later.
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return [
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click.shell_completion.CompletionItem(f"'{key}='")
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for key, value in self._shell_complete_config_items(ctx, incomplete)
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]
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if incomplete.endswith("="):
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# raise ValueError(f"incomplete: <{incomplete}>")
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# Auto-complete with '<KEY>=<VALUE>'
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return [
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click.shell_completion.CompletionItem(f"{key}={json.dumps(value)}")
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for key, value in self._shell_complete_config_items(
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ctx, incomplete[:-1]
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)
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]
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# Else, don't bother
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return []
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@click.command(help="Create and save configuration interactively")
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@click.option("-i", "--interactive", is_flag=True, help="Run interactively")
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@click.option(
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"-s",
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"--set",
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"set_vars",
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type=ConfigKeyValParamType(),
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multiple=True,
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metavar="KEY=VAL",
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help="Set a configuration value (can be used multiple times)",
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)
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@click.option(
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"-U",
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"--unset",
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"unset_vars",
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multiple=True,
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type=ConfigKeyParamType(),
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help="Remove a configuration value (can be used multiple times)",
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)
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@click.option(
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"-e", "--env-only", "env_only", is_flag=True, help="Skip updating config.yml"
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)
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@click.pass_obj
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def save(
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context: Context,
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interactive: bool,
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set_vars: Config,
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unset_vars: list[str],
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env_only: bool,
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) -> None:
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config = tutor_config.load_minimal(context.root)
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if interactive:
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interactive_config.ask_questions(config)
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if set_vars:
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for key, value in dict(set_vars).items():
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config[key] = env.render_unknown(config, value)
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for key in unset_vars:
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config.pop(key, None)
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if not env_only:
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tutor_config.save_config_file(context.root, config)
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# Reload configuration, without version checking
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config = tutor_config.load_full(context.root)
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env.save(context.root, config)
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@click.command(help="Print the project root")
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@click.pass_obj
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def printroot(context: Context) -> None:
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click.echo(context.root)
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@click.command(help="Print a configuration value")
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@click.argument("key", type=ConfigKeyParamType())
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@click.pass_obj
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def printvalue(context: Context, key: str) -> None:
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config = tutor_config.load(context.root)
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try:
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# Note that this will incorrectly print None values
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fmt.echo(str(config[key]))
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except KeyError as e:
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raise exceptions.TutorError(f"Missing configuration value: {key}") from e
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config_command.add_command(save)
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config_command.add_command(printroot)
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config_command.add_command(printvalue)
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