DavHau
d1e8b1ed96
- this adds devShells.{system}.python
- a 'select-shell' command to switch between devshells
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
import argparse
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import json
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import pathlib
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import subprocess
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import sys
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parser = argparse.ArgumentParser(description="Select a devshell")
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parser.add_argument("shell", help="the name of the devshell to select", nargs="?")
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parser.add_argument("--list", action="store_true", help="list available devshells")
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args = parser.parse_args()
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selected_shell_file = pathlib.Path(".direnv/selected-shell")
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if not args.list and not args.shell:
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parser.print_help()
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exit(0)
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if args.list:
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flake_show = subprocess.run(
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["nix", "flake", "show", "--json", "--no-write-lock-file"],
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stdout=subprocess.PIPE,
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)
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data = json.loads(flake_show.stdout.decode())
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print("Available devshells:")
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print("\n".join(data["devShells"]["x86_64-linux"].keys()))
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exit(0)
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if selected_shell_file.exists():
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with open(selected_shell_file) as f:
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current_shell = f.read().strip()
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else:
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current_shell = ""
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if current_shell == args.shell:
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print(f"{args.shell} devshell already selected. No changes made.")
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sys.exit(0)
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with open(selected_shell_file, "w") as f:
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f.write(args.shell)
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print(f"{args.shell} devshell selected")
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