My nix-darwin and NixOS config
darwin: auto-clean stale brew download locks on activation
Add a preActivation script to remove .incomplete lock files from the
Homebrew downloads cache before brew bundle runs. Prevents subsequent
activations from failing when a previous nrs was interrupted mid-fetch.
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modules/darwin/homebrew.nix
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modules/darwin/homebrew.nix
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if builtins.isString cask then { name = cask; greedy = true; } else cask // { greedy = true; };
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in
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{
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# Clear stale Homebrew download lock files (.incomplete) that accumulate
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# when a previous activation is interrupted mid-fetch. These cause the
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# next `brew bundle` to refuse to re-download the same file.
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system.activationScripts.preActivation.text = ''
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stale_dir="/Users/${cfg.user.username}/Library/Caches/Homebrew/downloads"
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if [ -d "$stale_dir" ]; then
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find "$stale_dir" -maxdepth 1 -name '*.incomplete' -delete
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fi
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'';
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+
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# Homebrew configuration — all values driven from myConfig.darwin.homebrew
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homebrew = {
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inherit (cfg.darwin.homebrew) enable taps brews masApps;