fix(deps): after installing deps, replace Blockly v11 with v12 RC

.gitignore

@@ -1,3 +1,6 @@
+# Temporary until Blockly v12 release
+/blockly-rc/
+
 # OSX
 .DS_Store
 

package.json

@@ -13,6 +13,7 @@
   "scripts": {
     "build": "webpack --mode production",
     "prepare": "husky || true",
+    "prepublish": "./temp-use-blockly-v12-rc.sh",
     "start": "webpack serve --open --mode development",
     "test": "echo \"Error: no test specified\" && exit 1",
     "test:lint": "eslint ."

temp-use-blockly-v12-rc.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# vim: set tw=118 ts=2 sw=2 expandtab
+
+# This script is intended to be run from the root of the scratch-blocks repo.
+# This will check out the Blockly v12 Release Candidate branch,
+# build it, and link it into node_modules/
+
+# TODO: Remove this script once Blockly v12 is available from https://www.npmjs.com/package/blockly
+
+# WARNING: This uses `npm link`, which causes system-wide changes!
+
+set -e -x
+
+if [ ! -d "blockly-rc" ]; then
+  git clone --branch rc/v12.0.0 git@github.com:google/blockly.git blockly-rc
+else
+  git -C blockly-rc checkout rc/v12.0.0
+  git -C blockly-rc pull
+fi
+npm -C blockly-rc ci
+npm -C blockly-rc run package
+
+# --legacy-peer-deps can be removed once the Blockly plugins used by scratch-blocks support Blockly v12
+# --prefer-offline speeds this up by roughly 2x on my computer (!!)
+# --prefer-offline should be OK since we're probably running immediately after a non-offline `npm i` or `npm ci`
+npm link --prefer-offline --legacy-peer-deps blockly-rc/dist/

tsconfig.json

@@ -1,4 +1,7 @@
 {
+  "exclude": [
+    "./blockly-rc/"
+  ],
   "compilerOptions": {
     "outDir": "./dist/",
     "noImplicitAny": true,