depot/third_party/nixpkgs/pkgs/by-name/sh/shadershark/update.sh

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#!/usr/bin/env nix-shell
#! nix-shell -i bash -p curl common-updater-scripts
set -e
repo_url="$1"; shift
data="$(curl "$repo_url/tags")"
rev="$(echo "$data" | grep '/rev/v' | sed 's;.*/rev/v\([^"]*\)[^$]*;\1;' | head -n 1)"
echo "new rev: $rev"
update-source-version shadershark "$rev" \
--print-changes