Use absolute paths in CI scripts, add APK debugging

Resolve all paths from REPO_ROOT to eliminate fragile cd/relative
path issues. Add diagnostic steps to trace where the APK ends up.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/build-apk.yml

@@ -21,6 +21,11 @@ jobs:
         if: ${{ gitea.event.inputs.skip_build != 'true' }}
         run: nix develop --command build-apk-ci
 
+      - name: Verify APK exists
+        run: |
+          echo "PWD: $PWD"
+          find . -name "*.apk" -type f 2>/dev/null || echo "No APK files found anywhere"
+
       - name: Create release
         env:
           GITEA_SHA: ${{ gitea.sha }}

flake.nix

@@ -46,10 +46,16 @@
         # This script should run in the Gitea CI process to build the APK
         createReleaseCi = pkgs.writeShellScriptBin "create-release-ci" ''
           set -euo pipefail
-          APK_PATH="android/app/build/outputs/apk/debug/app-debug.apk"
+          REPO_ROOT="$PWD"
+          APK_PATH="$REPO_ROOT/android/app/build/outputs/apk/debug/app-debug.apk"
           SHORT_SHA="''${GITEA_SHA:0:7}"
           TAG="build-''${SHORT_SHA}"
 
+          if [ ! -f "$APK_PATH" ]; then
+            echo "ERROR: APK not found at $APK_PATH"
+            exit 1
+          fi
+
           export XDG_CONFIG_HOME="$(mktemp -d)"
           mkdir -p "$XDG_CONFIG_HOME/tea"
           cat > "$XDG_CONFIG_HOME/tea/config.yml" <<YML
@@ -72,14 +78,15 @@
         '';
 
         buildApkCi = pkgs.writeShellScriptBin "build-apk-ci" ''
-          export GRADLE_USER_HOME="$PWD/.gradle-home"
-          export ANDROID_USER_HOME="$PWD/.android-home"
+          REPO_ROOT="$PWD"
+          export GRADLE_USER_HOME="$REPO_ROOT/.gradle-home"
+          export ANDROID_USER_HOME="$REPO_ROOT/.android-home"
           export CARGO_BUILD_JOBS=2
           export CARGO_TARGET_DIR="/var/cache/gitea-runner/cargo-target"
           export RUSTC_WRAPPER="${pkgs.sccache}/bin/sccache"
           export SCCACHE_DIR="/var/cache/gitea-runner/sccache"
 
-          cat > android/local.properties <<PROPS
+          cat > "$REPO_ROOT/android/local.properties" <<PROPS
           sdk.dir=${androidSdk}/libexec/android-sdk
           android.aapt2FromMavenOverride=${androidSdk}/libexec/android-sdk/build-tools/35.0.0/aapt2
           PROPS
@@ -87,18 +94,23 @@
           echo "=== sccache stats before build ==="
           ${pkgs.sccache}/bin/sccache --show-stats || true
 
-          cd android
-          bash gradlew assembleDebug --no-daemon --max-workers=2 -Pandroid.aapt2FromMavenOverride=${androidSdk}/libexec/android-sdk/build-tools/35.0.0/aapt2
+          "$REPO_ROOT/android/gradlew" \
+            -p "$REPO_ROOT/android" \
+            assembleDebug --no-daemon --max-workers=2 \
+            -Pandroid.aapt2FromMavenOverride=${androidSdk}/libexec/android-sdk/build-tools/35.0.0/aapt2
+
+          echo "=== build outputs ==="
+          find "$REPO_ROOT/android/app/build/outputs" -type f -name "*.apk" 2>/dev/null || echo "No APK files found"
+          echo "=== REPO_ROOT is: $REPO_ROOT ==="
 
           echo "=== sccache stats after build ==="
           ${pkgs.sccache}/bin/sccache --show-stats || true
 
           echo "=== APK size ==="
-          ls -lh "$PWD/app/build/outputs/apk/debug/app-debug.apk"
+          ls -lh "$REPO_ROOT/android/app/build/outputs/apk/debug/app-debug.apk"
 
           echo "=== cleaning old cargo artifacts ==="
-          cd "$OLDPWD/rust"
-          ${pkgs.cargo-sweep}/bin/cargo-sweep sweep --maxsize 2GB || true
+          ${pkgs.cargo-sweep}/bin/cargo-sweep sweep --maxsize 2GB "$REPO_ROOT/rust" || true
         '';
       in {
         devShells.default = pkgs.mkShell {