From 0fd49330d3218ec5f1bc62b72ace28e79d02bc93 Mon Sep 17 00:00:00 2001
From: TC <th-ch@users.noreply.github.com>
Date: Tue, 24 Nov 2020 00:12:55 +0100
Subject: [PATCH] CI: cache yarn directory

---
 .github/workflows/build.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 65fbf357..67feb14a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,6 +20,18 @@ jobs:
         with:
           node-version: "12.x"
 
+      - name: Get yarn cache directory path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(yarn cache dir)"
+
+      - uses: actions/cache@v2
+        id: yarn-cache
+        with:
+          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+
       - name: Install dependencies
         run: yarn --frozen-lockfile