From 1704e3a8b52b01cf5e71b2d4bdf286666eb5d0f4 Mon Sep 17 00:00:00 2001
From: Jaemin Choi <1dotolee@gmail.com>
Date: Sat, 26 Jun 2021 11:15:38 +0000
Subject: [PATCH] Cache yarn packages in GitHub Actions

---
 .github/workflows/test-frontend.yml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/.github/workflows/test-frontend.yml b/.github/workflows/test-frontend.yml
index 48e49ff9b..93bb97ae8 100644
--- a/.github/workflows/test-frontend.yml
+++ b/.github/workflows/test-frontend.yml
@@ -19,15 +19,32 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+
       - uses: actions/setup-node@v2
         with:
           node-version: '14'
 
+      - name: Get yarn cache directory path
+        id: yarn-cache-path
+        run: echo "::set-output name=dir::$(yarn cache dir)"
+
+      - name: Cache Node modules
+        id: cache-yarn
+        uses: actions/cache@v2
+        with:
+          path: |
+            ${{ steps.yarn-cache-path.outputs.dir }}
+            ./frontend/public
+          key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-
+
       - name: Install Node packages
         working-directory: ${{ env.working-directory }}
         run: yarn install
 
       - name: Pre-build with Dll-Plugin
+        if: steps.cache-yarn.outputs.cache-hit != 'true'
         working-directory: ${{ env.working-directory }}
         run: yarn dll