fix(ci): direct AAPT2 userspace wrapping with QEMU to bypass host binfmt and FEX

.gitea/workflows/build-apk.yaml

@@ -117,10 +117,61 @@ jobs:
           flutter test
 
       - name: Build Universal Release APK
-        run: flutter build apk --release
+        run: |
+          ARCH=$(uname -m)
+          if [ "$ARCH" = "aarch64" ] || [ "$ARCH" = "arm64" ]; then
+            (
+              while true; do
+                for aapt2_bin in $(find /root/.gradle /opt/android-sdk-linux -type f -name "aapt2" 2>/dev/null); do
+                  if [ -f "$aapt2_bin" ] && ! [ -f "${aapt2_bin}.orig" ]; then
+                    if head -c 4 "$aapt2_bin" 2>/dev/null | grep -q 'ELF'; then
+                      echo "Wrapping newly extracted AAPT2: $aapt2_bin"
+                      mv "$aapt2_bin" "${aapt2_bin}.orig"
+                      printf '#!/bin/sh\nexec /usr/bin/qemu-x86_64-static -L /usr/x86_64-linux-gnu "$0.orig" "$@"\n' > "$aapt2_bin"
+                      chmod +x "$aapt2_bin" "${aapt2_bin}.orig"
+                    fi
+                  fi
+                done
+                sleep 0.5
+              done
+            ) &
+            AAPT2_WATCHER_PID=$!
+            echo "AAPT2 Watcher started with PID $AAPT2_WATCHER_PID"
+          fi
+
+          flutter build apk --release
+
+          if [ -n "$AAPT2_WATCHER_PID" ]; then
+            kill "$AAPT2_WATCHER_PID" 2>/dev/null || true
+          fi
 
       - name: Build Split-per-ABI Release APKs
-        run: flutter build apk --release --split-per-abi
+        run: |
+          ARCH=$(uname -m)
+          if [ "$ARCH" = "aarch64" ] || [ "$ARCH" = "arm64" ]; then
+            (
+              while true; do
+                for aapt2_bin in $(find /root/.gradle /opt/android-sdk-linux -type f -name "aapt2" 2>/dev/null); do
+                  if [ -f "$aapt2_bin" ] && ! [ -f "${aapt2_bin}.orig" ]; then
+                    if head -c 4 "$aapt2_bin" 2>/dev/null | grep -q 'ELF'; then
+                      echo "Wrapping newly extracted AAPT2: $aapt2_bin"
+                      mv "$aapt2_bin" "${aapt2_bin}.orig"
+                      printf '#!/bin/sh\nexec /usr/bin/qemu-x86_64-static -L /usr/x86_64-linux-gnu "$0.orig" "$@"\n' > "$aapt2_bin"
+                      chmod +x "$aapt2_bin" "${aapt2_bin}.orig"
+                    fi
+                  fi
+                done
+                sleep 0.5
+              done
+            ) &
+            AAPT2_WATCHER_PID=$!
+          fi
+
+          flutter build apk --release --split-per-abi
+
+          if [ -n "$AAPT2_WATCHER_PID" ]; then
+            kill "$AAPT2_WATCHER_PID" 2>/dev/null || true
+          fi
 
       - name: Organize Artifacts
         run: |

.github/workflows/build-apk.yaml

@@ -117,10 +117,61 @@ jobs:
           flutter test
 
       - name: Build Universal Release APK
-        run: flutter build apk --release
+        run: |
+          ARCH=$(uname -m)
+          if [ "$ARCH" = "aarch64" ] || [ "$ARCH" = "arm64" ]; then
+            (
+              while true; do
+                for aapt2_bin in $(find /root/.gradle /opt/android-sdk-linux -type f -name "aapt2" 2>/dev/null); do
+                  if [ -f "$aapt2_bin" ] && ! [ -f "${aapt2_bin}.orig" ]; then
+                    if head -c 4 "$aapt2_bin" 2>/dev/null | grep -q 'ELF'; then
+                      echo "Wrapping newly extracted AAPT2: $aapt2_bin"
+                      mv "$aapt2_bin" "${aapt2_bin}.orig"
+                      printf '#!/bin/sh\nexec /usr/bin/qemu-x86_64-static -L /usr/x86_64-linux-gnu "$0.orig" "$@"\n' > "$aapt2_bin"
+                      chmod +x "$aapt2_bin" "${aapt2_bin}.orig"
+                    fi
+                  fi
+                done
+                sleep 0.5
+              done
+            ) &
+            AAPT2_WATCHER_PID=$!
+            echo "AAPT2 Watcher started with PID $AAPT2_WATCHER_PID"
+          fi
+
+          flutter build apk --release
+
+          if [ -n "$AAPT2_WATCHER_PID" ]; then
+            kill "$AAPT2_WATCHER_PID" 2>/dev/null || true
+          fi
 
       - name: Build Split-per-ABI Release APKs
-        run: flutter build apk --release --split-per-abi
+        run: |
+          ARCH=$(uname -m)
+          if [ "$ARCH" = "aarch64" ] || [ "$ARCH" = "arm64" ]; then
+            (
+              while true; do
+                for aapt2_bin in $(find /root/.gradle /opt/android-sdk-linux -type f -name "aapt2" 2>/dev/null); do
+                  if [ -f "$aapt2_bin" ] && ! [ -f "${aapt2_bin}.orig" ]; then
+                    if head -c 4 "$aapt2_bin" 2>/dev/null | grep -q 'ELF'; then
+                      echo "Wrapping newly extracted AAPT2: $aapt2_bin"
+                      mv "$aapt2_bin" "${aapt2_bin}.orig"
+                      printf '#!/bin/sh\nexec /usr/bin/qemu-x86_64-static -L /usr/x86_64-linux-gnu "$0.orig" "$@"\n' > "$aapt2_bin"
+                      chmod +x "$aapt2_bin" "${aapt2_bin}.orig"
+                    fi
+                  fi
+                done
+                sleep 0.5
+              done
+            ) &
+            AAPT2_WATCHER_PID=$!
+          fi
+
+          flutter build apk --release --split-per-abi
+
+          if [ -n "$AAPT2_WATCHER_PID" ]; then
+            kill "$AAPT2_WATCHER_PID" 2>/dev/null || true
+          fi
 
       - name: Organize Artifacts
         run: |

android/build.gradle

@@ -43,3 +43,52 @@ subprojects {
 tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }
+
+// Auto-wrap x86_64 AAPT2 on ARM64 Linux hosts (e.g. CI runner) to run seamlessly via QEMU
+gradle.taskGraph.whenReady { taskGraph ->
+    String os = System.getProperty("os.name", "").toLowerCase()
+    String arch = System.getProperty("os.arch", "").toLowerCase()
+    if (os.contains("linux") && (arch.contains("aarch64") || arch.contains("arm64"))) {
+        def qemu = new File("/usr/bin/qemu-x86_64-static").exists() ? "/usr/bin/qemu-x86_64-static" : "qemu-x86_64-static"
+        def wrapAapt2 = {
+            def searchDirs = []
+            def gh = gradle.gradleUserHomeDir
+            if (gh != null && gh.exists()) {
+                def transforms = new File(gh, "caches")
+                if (transforms.exists()) searchDirs.add(transforms)
+            }
+            def sdk = new File("/opt/android-sdk-linux/build-tools")
+            if (sdk.exists()) searchDirs.add(sdk)
+            def rootGradle = new File("/root/.gradle/caches")
+            if (rootGradle.exists()) searchDirs.add(rootGradle)
+
+            searchDirs.each { dir ->
+                dir.eachFileRecurse(groovy.io.FileType.FILES) { file ->
+                    if (file.name == "aapt2" && !file.name.endsWith(".orig")) {
+                        try {
+                            byte[] header = new byte[4]
+                            file.withInputStream { is -> is.read(header) }
+                            if (header[0] == 0x7F && header[1] == 0x45 && header[2] == 0x4C && header[3] == 0x46) {
+                                def orig = new File(file.parentFile, "aapt2.orig")
+                                if (!orig.exists()) {
+                                    file.renameTo(orig)
+                                    orig.setExecutable(true)
+                                }
+                                file.text = "#!/bin/sh\nexec ${qemu} -L /usr/x86_64-linux-gnu \"\$(dirname \"\$0\")/aapt2.orig\" \"\$@\"\n"
+                                file.setExecutable(true)
+                                println "[ARM64 CI] Wrapped AAPT2 at ${file.absolutePath} with QEMU"
+                            }
+                        } catch (Exception ignored) {}
+                    }
+                }
+            }
+        }
+        taskGraph.allTasks.findAll { 
+            it.name.contains("Resource") || it.name.contains("Aapt") || it.name.contains("Package") || it.name.contains("Bundle") 
+        }.each { task ->
+            task.doFirst {
+                wrapAapt2()
+            }
+        }
+    }
+}