From 09fcb2286b33ee77d740669aeccfe8b31fe98f6d Mon Sep 17 00:00:00 2001
From: Rafael Winterhalter <rafael.wth@gmail.com>
Date: Wed, 14 Jul 2021 21:29:33 +0200
Subject: [PATCH] Introduce cache key for legacy builds.

---
 .github/workflows/main.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1e8e9885677..3c4f6c1b6e1 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -104,6 +104,11 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-legacy-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-legacy-maven-
       - uses: actions/setup-java@v2
         with:
           java-version: ${{ matrix.java }}