Update darwin flake input revisions

Overview

The darwin flake pins input repos by commit in darwin/flake.nix. Use this skill to update those commits and keep darwin/flake.lock in sync.

Steps

1. •

   From the repo root, update the lock file to the latest default branches:

   bash

   cd darwin
   nix flake update \
     --override-input nixpkgs github:NixOS/nixpkgs \
     --override-input nix-darwin github:nix-darwin/nix-darwin \
     --override-input home-manager github:nix-community/home-manager \
     --override-input nixpkgs-firefox-darwin github:bandithedoge/nixpkgs-firefox-darwin \
     nixpkgs \
     nix-darwin \
     home-manager \
     nixpkgs-firefox-darwin
   

2. •

   Sync darwin/flake.nix to the new locked revisions:

   bash

   cd darwin
   python - <<'PY'
   import json
   import pathlib
   import re
   
   lock = json.loads(pathlib.Path("flake.lock").read_text())
   inputs = [
       "nixpkgs",
       "nix-darwin",
       "home-manager",
       "nixpkgs-firefox-darwin",
   ]
   
   text = pathlib.Path("flake.nix").read_text()
   for name in inputs:
       rev = lock["nodes"][name]["locked"]["rev"]
       pattern = rf"({re.escape(name)}\.url\s*=\s*\"[^\"]+/)([0-9a-f]{{7,}})(\";)"
       def repl(match, rev=rev):
           return f"{match.group(1)}{rev}{match.group(3)}"
       text, count = re.subn(pattern, repl, text)
       if count != 1:
           raise SystemExit(f"Expected 1 match for {name}, got {count}")
   
   pathlib.Path("flake.nix").write_text(text)
   PY
   

3. •

   Review the results:

   bash

   git diff darwin/flake.nix darwin/flake.lock
   

Notes

• •If you need a specific tag/branch, swap the override URL (e.g., github:NixOS/nixpkgs/nixpkgs-unstable) before updating.
• •firefox-addons does not pin a revision in flake.nix; updating flake.lock is sufficient.