4 if [[ "x$1" == "x" ]]; then
5 echo "Must provide a revision argument"
7 echo " ./update-nixpkgs.sh <rev>"
8 echo " ./update-nixpkgs.sh https://github.com/foo/nixpkgs <rev>"
12 if [[ "x$2" == "x" ]]; then
14 URL="https://github.com/nixos/nixpkgs"
20 DOWNLOAD="$URL/archive/$REV.tar.gz"
21 echo "Updating to nixpkgs revision $REV from $URL"
22 SHA256=$(nix-prefetch-url "$DOWNLOAD")
24 cat > nixpkgs.json <<EOF
32 echo "Updated nixpkgs.json"