From 6fe353f80cd0d308ec2d05e090082d4e35864d6d Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Sun, 5 Nov 2023 13:50:27 -0700
Subject: github actions: cache the Atmel DFP files between runs

---
 .github/workflows/compile.yml | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to '.github/workflows/compile.yml')

diff --git a/.github/workflows/compile.yml b/.github/workflows/compile.yml
index 78ca9cc..c6278d3 100644
--- a/.github/workflows/compile.yml
+++ b/.github/workflows/compile.yml
@@ -18,9 +18,20 @@ jobs:
     - name: Requirements
       run: |
         sudo apt -qqy update
-        sudo apt -qqy install avr-libc binutils-avr gcc-avr wget unzip
+        sudo apt -qqy install avr-libc binutils-avr gcc-avr unzip wget
 
-    - name: Install Device Family Pack
+    - name: Cache Atmel DFPs
+      id: cache-dfp
+      uses: actions/cache@v3
+      env:
+        cache-name: cache-dfp-files
+      with:
+        path: arch/dfp
+        # new cache whenever the dfp-install script changes
+        key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('bin/dfp-install.sh') }}
+
+    - name: Install Atmel DFPs
+      if: steps.cache-dfp.outputs.cache-hit != 'true'
       run: |
         ./make dfp
 
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