Hyprland/nix/update-wlroots.sh

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#!/usr/bin/env -S nix shell nixpkgs#gawk nixpkgs#git nixpkgs#gnused nixpkgs#ripgrep -c bash
# get wlroots revision from submodule
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SUB_REV=$(git submodule status | rg wlroots | awk '{ print substr($1,2) }')
# and from lockfile
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CRT_REV=$(rg rev flake.nix | awk '{ print substr($3, 2, 40) }')
if [ "$SUB_REV" != "$CRT_REV" ]; then
echo "Updating wlroots..."
# update wlroots to submodule revision
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sed -Ei "s/\w{40}/$SUB_REV/g" flake.nix
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nix flake lock
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echo "wlroots: $CRT_REV -> $SUB_REV"
else
echo "wlroots is up to date!"
fi