mirror of
https://github.com/yavook/kiwi-scp.git
synced 2024-11-24 05:33:00 +00:00
74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
import importlib
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import os
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from gettext import gettext as _
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from typing import List, Optional
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import click
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class KiwiCLI(click.MultiCommand):
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"""Command Line Interface spread over multiple files in this directory"""
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def list_commands(self, ctx: click.Context) -> List[str]:
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"""list all the commands defined by cmd_*.py files in this directory"""
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return [
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filename[4:-3]
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for filename in os.listdir(os.path.abspath(os.path.dirname(__file__)))
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if filename.startswith("cmd_") and filename.endswith(".py")
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]
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def get_command(self, ctx: click.Context, cmd_name: str) -> Optional[click.Command]:
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"""import and return a specific command"""
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try:
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cmd_module = importlib.import_module(f"kiwi_scp.commands.cmd_{cmd_name}")
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except ImportError:
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return
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member_name = f"{cmd_name.capitalize()}Command"
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if member_name in dir(cmd_module):
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member = getattr(cmd_module, member_name)
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if isinstance(member, click.Command):
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return member
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else:
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raise Exception("Fail class")
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else:
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raise Exception("Fail member name")
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def format_commands(self, ctx: click.Context, formatter: click.HelpFormatter) -> None:
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commands = {
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"Operation": [
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"up", "down", "restart", "update",
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],
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"Instance Management": [
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"init", "list",
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],
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"Project and Service Management": [
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"new", "enable", "disable", "logs", "shell", "cmd",
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],
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"Image Handling": [
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"build", "pull", "push",
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],
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}
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# allow for 3 times the default spacing
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cmd_names = set(self.list_commands(ctx))
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limit = formatter.width - 6 - max(len(cmd_name) for cmd_name in cmd_names)
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for purpose, cmd_list in commands.items():
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with formatter.section(_(f"Commands for {purpose}")):
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formatter.write_dl([
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(cmd_name, self.get_command(ctx, cmd_name).get_short_help_str(limit))
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for cmd_name in cmd_list
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])
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cmd_names -= set(cmd_list)
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if len(cmd_names) > 0:
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raise Exception(f"Some commands were not registered in a group above: {cmd_names}")
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