Update update-librusty script to fetch Cargo.lock from repository

#!/usr/bin/env nix-shell

#!nix-shell -i bash -p gnugrep gnused nix

#!nix-shell -i bash -p gnugrep gnused nix jq

# shellcheck shell=bash

set -eu -o pipefail

# ASSUMES; The Cargo.lock file inside this directory holds the correct librusty version

echo "librusty_v8: UPDATING"

# ASSUMES; The Cargo.lock file is located at <REPO>/backend/Cargo.toml

WINDMILL_LATEST_VERSION=$(curl ${GITHUB_TOKEN:+-u ":$GITHUB_TOKEN"} --silent --fail --location "https://api.github.com/repos/windmill-labs/windmill/releases/latest" | jq --raw-output .tag_name)

CARGO_LOCK=$(curl ${GITHUB_TOKEN:+-u ":$GITHUB_TOKEN"} --silent --fail --location "https://github.com/windmill-labs/windmill/raw/$WINDMILL_LATEST_VERSION/backend/Cargo.lock")

PACKAGE_DIR=$(dirname "$(readlink --canonicalize-existing "${BASH_SOURCE[0]}")")

OUTPUT_FILE="$PACKAGE_DIR/librusty_v8.nix"

NEW_VERSION="$(grep --after-context 5 'name = "v8"' "$PACKAGE_DIR/Cargo.lock" | grep 'version =' | sed -E 's/version = "//;s/"//')"

NEW_VERSION=$(echo "$CARGO_LOCK" | grep --after-context 5 'name = "v8"' | grep 'version =' | sed -E 's/version = "//;s/"//')

CURRENT_VERSION=""

if [ -f "$OUTPUT_FILE" ]; then

EOF

mv "$TEMP_FILE" "$OUTPUT_FILE"

echo "librusty_v8: UPDATE DONE"