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kiwi-scp/kiwi_scp/commands/cli.py

110 lines
3.5 KiB
Python

import importlib
import os
import sys
from enum import Enum, auto
from typing import List, Tuple, Iterable, Type, Optional, TypeVar
import click
from ..instance import Instance, Project
class KiwiCLI(click.MultiCommand):
"""Command Line Interface spread over multiple files in this directory"""
def list_commands(self, ctx: click.Context) -> List[str]:
"""list all the commands defined by cmd_*.py files in this directory"""
return [
filename[4:-3]
for filename in os.listdir(os.path.abspath(os.path.dirname(__file__)))
if filename.startswith("cmd_") and filename.endswith(".py")
]
def get_command(self, ctx: click.Context, cmd_name: str) -> Optional[click.Command]:
"""import and return a specific command"""
try:
cmd_module = importlib.import_module(f"kiwi_scp.commands.cmd_{cmd_name}")
except ImportError:
return
for cmd_name in dir(cmd_module):
member = getattr(cmd_module, cmd_name)
if isinstance(member, click.Command):
return member
T = TypeVar("T")
class KiwiCommand:
@staticmethod
def print_multi_color(*content: Tuple[str, str]) -> None:
for message, color in content:
click.secho(message, fg=color, nl=False)
click.echo()
@staticmethod
def print_header(header: str) -> None:
click.secho(header, fg="green", bold=True)
@staticmethod
def print_error(error: str) -> None:
click.secho(error, file=sys.stderr, fg="red", bold=True)
@staticmethod
def print_list(content: Iterable[str]) -> None:
for item in content:
KiwiCommand.print_multi_color(
(" - ", "green"),
(item, "blue"),
)
@staticmethod
def user_query(description: str, default: T, cast_to: Type[T] = str) -> T:
# prompt user as per argument
while True:
try:
prompt = \
click.style(f"Enter {description} [", fg="green") + \
click.style(default, fg="blue") + \
click.style("] ", fg="green")
str_value = input(prompt).strip()
if str_value:
return cast_to(str_value)
else:
return default
except EOFError:
click.echo("Input aborted.")
return default
except Exception as e:
click.echo(f"Invalid input: {e}")
@classmethod
def run_for_instance(cls, instance: Instance, **kwargs) -> None:
for project_config in instance.config.projects:
project = instance.get_project(project_config.name)
cls.run_for_existing_project(instance, project, **kwargs)
@classmethod
def run_for_new_project(cls, instance: Instance, project_name: str, **kwargs) -> None:
cls.print_error(f"Project '{project_name}' not in kiwi-scp instance at '{instance.directory}'!")
@classmethod
def run_for_existing_project(cls, instance: Instance, project: Project, **kwargs) -> None:
service_names = [service.name for service in project.services.content]
cls.run_for_services(instance, project, service_names, **kwargs)
@classmethod
def run_for_services(cls, instance: Instance, project: Project, service_names: List[str], **kwargs) -> None:
raise Exception
class KiwiCommandType(Enum):
INSTANCE = auto()
PROJECT = auto()
SERVICE = auto()