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flake-update: Get the nixpkgs/lib subtree only

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Robert Hensing 2024-04-26 23:45:32 +02:00
parent 48724111e9
commit e807eea9e8
1 changed files with 26 additions and 0 deletions
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26
dev/flake-module.nix
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@ -11,6 +11,32 @@
enable = true;
autoMergeMethod = "merge";
when.dayOfMonth = 1;
effect.settings = {
# Only fetch the `lib` subtree.
# NOTE: Users don't have to do this. They are recommended to use follows
# and just use the `nixpkgs` they're already fetching anyway.
# It doesn't have to be `lib/` only!
git.update.script = lib.mkBefore ''
echo 'Fetching nixpkgs-lib tree'
branch="nixos-unstable"
mkdir ~/nixpkgs
git -C ~/nixpkgs init
git -C ~/nixpkgs remote add origin https://github.com/NixOS/nixpkgs.git
git -C ~/nixpkgs fetch origin --filter=blob:none --depth=1 "$branch"
commit="$(git -C ~/nixpkgs rev-parse FETCH_HEAD)"
tree="$(git -C ~/nixpkgs rev-parse FETCH_HEAD:lib)"
echo 'Adjusting nixpkgs-lib.url'
sed -i flake.nix -e \
's^ nixpkgs-lib\.url = ".*^ nixpkgs-lib\.url = "https://github.com/NixOS/nixpkgs/archive/'$tree'.tar.gz"; # '$commit' /lib from '$branch'^'
git diff
grep -F "$tree" flake.nix >/dev/null || {
echo 'failed to write new tree to flake.nix'
exit 1
}
git commit flake.nix -m 'flake.nix: Update nixpkgs-lib tree'
'';
};
};
perSystem = { config, pkgs, ... }: {