Hyprland/nix/update-inputs.sh

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#!/usr/bin/env -S nix shell nixpkgs#jq -c bash
2022-12-24 01:20:02 +01:00
# Update inputs when the Mesa version is outdated. We don't want
# incompatibilities between the user's system and Hyprland.
# get the current Nixpkgs revision
REV=$(jq <flake.lock '.nodes.nixpkgs.locked.rev' -r)
# check versions for current and remote nixpkgs' mesa
CRT_VER=$(nix eval --raw github:nixos/nixpkgs/"$REV"#mesa.version)
NEW_VER=$(nix eval --raw github:nixos/nixpkgs/nixos-unstable#mesa.version)
if [ "$CRT_VER" != "$NEW_VER" ]; then
echo "Updating Mesa $CRT_VER -> $NEW_VER and flake inputs"
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# keep wlroots rev, as we don't want to update it
WLR_REV=$(nix flake metadata --json | jq -r '.locks.nodes.wlroots.locked.rev')
# update inputs to latest versions
nix flake update
# hold back wlroots (nix/update-wlroots.nix handles updating that)
nix flake lock --override-input wlroots "gitlab:wlroots/wlroots/$WLR_REV?host=gitlab.freedesktop.org"
else
echo "nixpkgs is up to date!"
fi