pkgs: add pnpm-lock-export

pkgs/pnpm-lock-export/update.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p nix wget nix-prefetch-github jq prefetch-npm-deps nodejs
+
+# shellcheck shell=bash
+
+if [ -n "$GITHUB_TOKEN" ]; then
+    TOKEN_ARGS=(--header "Authorization: token $GITHUB_TOKEN")
+fi
+
+if [[ $# -gt 1 || $1 == -* ]]; then
+    echo "Regenerates packaging data for the pnpm-lock-export packages."
+    echo "Usage: $0 [git release tag]"
+    exit 1
+fi
+
+set -x
+
+cd "$(dirname "$0")"
+version="$1"
+
+set -euo pipefail
+
+if [ -z "$version" ]; then
+    version="$(wget -O- "${TOKEN_ARGS[@]}" "https://api.github.com/repos/cvent/pnpm-lock-export/releases?per_page=1" | jq -r '.[0].tag_name')"
+fi
+
+# strip leading "v"
+version="${version#v}"
+
+# pnpm-lock-export repository
+src_hash=$(nix-prefetch-github cvent pnpm-lock-export --rev "v${version}" | jq -r .sha256)
+
+# Front-end dependencies
+upstream_src="https://raw.githubusercontent.com/cvent/pnpm-lock-export/v$version"
+
+trap 'rm -rf package.json' EXIT
+wget "${TOKEN_ARGS[@]}" "$upstream_src/package.json"
+npm install --package-lock-only
+deps_hash=$(prefetch-npm-deps package-lock.json)
+
+# Use friendlier hashes
+src_hash=$(nix hash to-sri --type sha256 "$src_hash")
+deps_hash=$(nix hash to-sri --type sha256 "$deps_hash")
+
+sed -i -E -e "s#version = \".*\"#version = \"$version\"#" default.nix
+sed -i -E -e "s#hash = \".*\"#hash = \"$src_hash\"#" default.nix
+sed -i -E -e "s#npmDepsHash = \".*\"#npmDepsHash = \"$deps_hash\"#" default.nix