From e0377bbbd31cd9d043d44e01a721a50fa3fb409f Mon Sep 17 00:00:00 2001
From: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
Date: Tue, 23 Jun 2026 15:04:23 -0400
Subject: [PATCH] [ci] Enable ccache for component batch builds (~7% faster)
 (#17136)

---
 .github/workflows/ci.yml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 10ace8c179..c4149e2049 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -822,8 +822,8 @@ jobs:
       - name: Cache apt packages
         uses: awalsh128/cache-apt-pkgs-action@acb598e5ddbc6f68a970c5da0688d2f3a9f04d05 # v1.5.3
         with:
-          packages: libsdl2-dev
-          version: 1.0
+          packages: libsdl2-dev ccache
+          version: 1.1
 
       - name: Check out code from GitHub
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
@@ -941,6 +941,11 @@ jobs:
             echo "All components in this batch are validate-only -- skipping compile stage."
           fi
 
+      - name: Print ccache statistics
+        # esphome stores the cache under the IDF tools path; expand the leading
+        # ~ in ESPHOME_ESP_IDF_PREFIX so ccache reads the dir the build used.
+        run: CCACHE_DIR="${ESPHOME_ESP_IDF_PREFIX/#\~/$HOME}/ccache" ccache -s
+
   test-esp32-platformio:
     name: Test esp32 components with PlatformIO
     runs-on: ubuntu-24.04