Check the git status output is empty in CI to avoid uncommitted build…

… artifacts (#61)

.github/workflows/CI.yml

@@ -37,3 +37,4 @@ jobs:
       - run: yarn lint
       - run: yarn compile
       - run: yarn test
+      - run: yarn check-compile-output

package.json

@@ -2,9 +2,6 @@
   "engines": {
     "node": ">=10"
   },
-  "dependencies": {
-    "solc": "0.5.16"
-  },
   "devDependencies": {
     "@types/chai": "^4.2.6",
     "@types/mocha": "^5.2.7",
@@ -14,13 +11,18 @@
     "mocha": "^6.2.2",
     "prettier": "^1.19.1",
     "rimraf": "^3.0.0",
+    "solc": "0.5.16",
     "ts-node": "^8.5.4",
     "typescript": "^3.7.3"
   },
   "scripts": {
     "lint": "yarn prettier ./test/*.ts --check",
-    "compile": "rimraf ./build/ && waffle .waffle.json",
-    "test": "mocha"
+    "clean": "rimraf ./build/",
+    "precompile": "yarn clean",
+    "compile": "waffle .waffle.json",
+    "pretest": "yarn compile",
+    "test": "mocha",
+    "check-compile-output": "./scripts/check-compile-output.sh"
   },
   "license": "GPL-3.0-or-later"
-}
+}

scripts/check-compile-output.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Checks that there are no uncommitted files in the repo.
+if [[ -z $(git status -s) ]]
+then
+    exit 0
+else
+    echo "There are uncommitted file changes!"
+    echo "The committed build artifacts likely do not match the source code."
+    exit 1
+fi