From 32bbab8aa6967d4a221b231890680a05148f031a Mon Sep 17 00:00:00 2001
From: Tony Giorgio <tonygiorgio@protonmail.com>
Date: Thu, 22 Jan 2026 12:55:04 -0600
Subject: [PATCH] ci(android): improve caching for sequential builds

Cache Cargo registry/git and Gradle build dirs for the sequential Tauri Android pipeline to reduce cold-start time.

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
---
 .github/workflows/android-build.yml | 14 ++++++++++++++
 .github/workflows/release.yml       | 14 ++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/.github/workflows/android-build.yml b/.github/workflows/android-build.yml
index a8c13627..e85db11d 100644
--- a/.github/workflows/android-build.yml
+++ b/.github/workflows/android-build.yml
@@ -41,6 +41,17 @@ jobs:
         with:
           targets: aarch64-linux-android,armv7-linux-androideabi,x86_64-linux-android,i686-linux-android
 
+      - name: Cache Cargo (registry + git)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-cargo-android-${{ hashFiles('frontend/src-tauri/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-android-
+            ${{ runner.os }}-cargo-
+
       - name: Setup Android NDK
         uses: nttld/setup-ndk@v1
         id: setup-ndk
@@ -55,6 +66,9 @@ jobs:
           path: |
             ~/.gradle/caches
             ~/.gradle/wrapper
+            frontend/src-tauri/gen/android/.gradle
+            frontend/src-tauri/gen/android/build
+            frontend/src-tauri/gen/android/app/build
           key: ${{ runner.os }}-gradle-${{ hashFiles('frontend/src-tauri/gen/android/**/*.gradle*', 'frontend/src-tauri/gen/android/gradle-wrapper.properties') }}
           restore-keys: |
             ${{ runner.os }}-gradle-
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 21e062ec..83921a9e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -165,6 +165,17 @@ jobs:
         with:
           targets: aarch64-linux-android,armv7-linux-androideabi,x86_64-linux-android,i686-linux-android
 
+      - name: Cache Cargo (registry + git)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-cargo-android-${{ hashFiles('frontend/src-tauri/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-android-
+            ${{ runner.os }}-cargo-
+
       - name: Setup Android NDK
         uses: nttld/setup-ndk@v1
         id: setup-ndk
@@ -179,6 +190,9 @@ jobs:
           path: |
             ~/.gradle/caches
             ~/.gradle/wrapper
+            frontend/src-tauri/gen/android/.gradle
+            frontend/src-tauri/gen/android/build
+            frontend/src-tauri/gen/android/app/build
           key: ${{ runner.os }}-gradle-${{ hashFiles('frontend/src-tauri/gen/android/**/*.gradle*', 'frontend/src-tauri/gen/android/gradle-wrapper.properties') }}
           restore-keys: |
             ${{ runner.os }}-gradle-