From 4ecb8ba0cc828defad6f4278fac8998ab48a0b23 Mon Sep 17 00:00:00 2001
From: Michał Sawicz <michal@sawicz.net>
Date: Wed, 6 Jan 2021 18:06:17 +0100
Subject: [snap] enable ccache in Linux Snap workflow
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Also adding `push` to triggering events to populate the cache.

Signed-off-by: Michał Sawicz <michal@sawicz.net>
---
 .github/workflows/linux-snap.yml | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to '.github/workflows/linux-snap.yml')

diff --git a/.github/workflows/linux-snap.yml b/.github/workflows/linux-snap.yml
index e1718c55d..325318c0a 100644
--- a/.github/workflows/linux-snap.yml
+++ b/.github/workflows/linux-snap.yml
@@ -28,11 +28,36 @@ jobs:
         # Needed for version determination to work
         fetch-depth: 0
 
+    - name: Set up CCache
+      id: setup-ccache
+      run: |
+        sudo apt-get install ccache
+        ccache --max-size=2G
+        sg lxd -c '/snap/bin/lxc profile device add default ccache disk source=${HOME}/.ccache/ path=/root/.ccache'
+
+        # Patch snapcraft.yaml to enable ccache
+        patch -p1 < .github/workflows/linux-snap.patch
+
+        # Find common base between master and HEAD to use as cache key.
+        git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules origin master
+        echo "::set-output name=key::$( git merge-base origin/master ${{ github.sha }} )"
+
+    - name: CCache
+      uses: actions/cache@v2
+      with:
+        key: ccache-${{ runner.os }}-${{ steps.setup-ccache.outputs.key }}
+        restore-keys: |
+          ccache-${{ runner.os }}-
+        path: ~/.ccache/**
+
     - name: Build
       run: |
         # Build the `subsurface` part.
         sg lxd -c '/snap/bin/snapcraft build --use-lxd subsurface'
 
+    - name: Clear CCache stats
+      run: ccache --show-stats --zero-stats
+
     - name: Build and verify the snap
       id: build-snap
       env:
-- 
cgit v1.2.3-70-g09d2