Files
sims/sims/cli.py

133 lines
3.7 KiB
Python

"""sims-cli — talk to the running sims status bar over DBus."""
from __future__ import annotations
import argparse
import json
import re
import subprocess
import sys
from dataclasses import dataclass
from typing import Callable
DEST = "org.Fabric.fabric.sims"
OBJ = "/org/Fabric/fabric"
IFACE = "org.Fabric.fabric"
def _dbus_send(*args: str) -> str:
proc = subprocess.run(
["dbus-send", "--session", "--print-reply", f"--dest={DEST}", OBJ, *args],
capture_output=True,
text=True,
)
if proc.returncode != 0:
sys.stderr.write(proc.stderr)
sys.exit(proc.returncode)
return proc.stdout
def invoke_action(action: str) -> None:
_dbus_send(f"{IFACE}.InvokeAction", f"string:{action}", "array:string:")
_ACTION_RE = re.compile(r'dict entry\(\s*string "([^"]+)"')
def list_actions() -> list[str]:
out = _dbus_send(
"org.freedesktop.DBus.Properties.Get",
f"string:{IFACE}",
"string:Actions",
)
return _ACTION_RE.findall(out)
@dataclass
class Command:
name: str
help: str
run: Callable[[argparse.Namespace], None]
def _action(name: str) -> Callable[[argparse.Namespace], None]:
return lambda _ns: invoke_action(name)
COMMANDS: list[Command] = [
Command("finder", "open window finder", _action("open-finder")),
Command("apps", "open application launcher", _action("open-app-launcher")),
Command("power", "open power menu", _action("open-power-menu")),
Command("screenshot", "open screenshot menu", _action("open-screenshot-menu")),
Command("notmuch-refresh", "refresh unread mail count", _action("refresh-notmuch")),
]
def _cmd_screenrec(ns: argparse.Namespace) -> None:
mapping = {
"menu": "open-screenrec-menu",
"start-monitor": "screenrec-start-monitor",
"start-region": "screenrec-start-region",
"stop": "screenrec-stop",
}
invoke_action(mapping[ns.screenrec_cmd])
def _cmd_list(ns: argparse.Namespace) -> None:
actions = list_actions()
if ns.json:
json.dump(actions, sys.stdout, indent=2)
sys.stdout.write("\n")
else:
for a in actions:
print(a)
def _cmd_invoke(ns: argparse.Namespace) -> None:
invoke_action(ns.action)
def build_parser() -> argparse.ArgumentParser:
parser = argparse.ArgumentParser(
prog="sims-cli",
description="Talk to the running sims status bar over DBus.",
)
sub = parser.add_subparsers(dest="cmd", required=True, metavar="COMMAND")
for cmd in COMMANDS:
p = sub.add_parser(cmd.name, help=cmd.help)
p.set_defaults(func=cmd.run)
rec = sub.add_parser("screenrec", help="screen recording controls")
rec_sub = rec.add_subparsers(dest="screenrec_cmd", required=True, metavar="ACTION")
for sub_name, sub_help in [
("menu", "open screenrec menu (auto-detects state)"),
("start-monitor", "start recording the focused monitor"),
("start-region", "start recording a slurp-selected region"),
("stop", "stop active recording"),
]:
rec_sub.add_parser(sub_name, help=sub_help)
rec.set_defaults(func=_cmd_screenrec)
lst = sub.add_parser("list", help="list registered actions")
lst.add_argument("--json", action="store_true", help="emit JSON array")
lst.set_defaults(func=_cmd_list)
inv = sub.add_parser(
"invoke",
help="invoke a raw action by name (escape hatch for actions without a dedicated subcommand)",
)
inv.add_argument("action", help="dbus action name, e.g. open-finder")
inv.set_defaults(func=_cmd_invoke)
return parser
def main() -> None:
parser = build_parser()
ns = parser.parse_args()
ns.func(ns)
if __name__ == "__main__":
main()