From c06c8570549db62c947cb46cbcecf716c86904af Mon Sep 17 00:00:00 2001
From: Ben Allfree <ben@benallfree.com>
Date: Fri, 10 Apr 2026 11:26:41 -0700
Subject: [PATCH] Add caching for PlatformIO global store in CI workflows to
 improve build efficiency. Updated both custom_build.yml and
 custom_build_test.yml to include caching paths and keys.

---
 .github/workflows/custom_build.yml      | 10 ++++++++++
 .github/workflows/custom_build_test.yml | 10 ++++++++++
 2 files changed, 20 insertions(+)

diff --git a/.github/workflows/custom_build.yml b/.github/workflows/custom_build.yml
index 341a849..64cb284 100644
--- a/.github/workflows/custom_build.yml
+++ b/.github/workflows/custom_build.yml
@@ -82,6 +82,16 @@ jobs:
           ENC_REF=$(python3 -c "import urllib.parse,os; print(urllib.parse.quote(os.environ['REF'], safe=''))")
           curl -fsSL -o /tmp/src.zip "https://codeload.github.com/${OWNER}/${REPO}/zip/${ENC_REF}"
 
+      - name: Cache PlatformIO global store
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.platformio/.cache
+            ~/.platformio/packages
+          key: platformio-${{ runner.os }}-v1-${{ hashFiles('.github/workflows/custom_build.yml', '.github/workflows/custom_build_test.yml') }}
+          restore-keys: |
+            platformio-${{ runner.os }}-v1-
+
       - name: Extract and build
         id: pio
         env:
diff --git a/.github/workflows/custom_build_test.yml b/.github/workflows/custom_build_test.yml
index 341a849..64cb284 100644
--- a/.github/workflows/custom_build_test.yml
+++ b/.github/workflows/custom_build_test.yml
@@ -82,6 +82,16 @@ jobs:
           ENC_REF=$(python3 -c "import urllib.parse,os; print(urllib.parse.quote(os.environ['REF'], safe=''))")
           curl -fsSL -o /tmp/src.zip "https://codeload.github.com/${OWNER}/${REPO}/zip/${ENC_REF}"
 
+      - name: Cache PlatformIO global store
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.platformio/.cache
+            ~/.platformio/packages
+          key: platformio-${{ runner.os }}-v1-${{ hashFiles('.github/workflows/custom_build.yml', '.github/workflows/custom_build_test.yml') }}
+          restore-keys: |
+            platformio-${{ runner.os }}-v1-
+
       - name: Extract and build
         id: pio
         env: