feat: add update.sh script to teku

pkgs/teku/update.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env nix-shell
 #!nix-shell -i bash -p curl jq nix sd
 
-set -e
+set -ex
 
 dirname="$(dirname "$0")"
 rootDir="$(git -C "$dirname" rev-parse --show-toplevel)"
@@ -15,19 +15,13 @@ updateVersion() {
 updateHash() {
   local version=$1
   local url="https://artifacts.consensys.net/public/${pname}/raw/names/${pname}.tar.gz/versions/${version}/${pname}-${version}.tar.gz"
-
-  local output=$(nix store prefetch-file --json "$url")
-  local sriHash=$(echo "$output" | jq -r .hash)
-
-  sd "\"hash\" = \"[a-zA-Z0-9\/+-=]*\";" "\"hash\" = \"$sriHash\";" "${dirname}/default.nix"
+  local sriHash=$(nix store prefetch-file --json "$url" | jq -r '.hash')
+  sd 'hash = "[a-zA-Z0-9/+-=]*";' "hash = \"$sriHash\";" "${dirname}/default.nix"
 }
 
-currentVersion=$(nix show-derivation "${rootDir}#${pname}" | jq -r '.[].env.version')
+currentVersion=$(nix derivation show "${rootDir}#${pname}" | jq -r '.[].env.version')
 latestVersion=$(curl -s "https://api.github.com/repos/ConsenSys/teku/releases/latest" | jq -r '.tag_name')
 
-# Optionally strip leading 'v' if present in the tag name
-latestVersion=${latestVersion#v}
-
 if [[ "$currentVersion" == "$latestVersion" ]]; then
   echo "${pname} is up to date: ${currentVersion}"
   exit 0