From b222872446f3fb4c135816625d73e5a071dec470 Mon Sep 17 00:00:00 2001
From: psi29a <psi29a@gmail.com>
Date: Mon, 19 Oct 2020 08:27:38 +0000
Subject: [PATCH] Android build on gitlab

---
 .gitlab-ci.yml               | 32 ++++++++++++++++++++++++++++++++
 CI/before_install.android.sh |  4 ++++
 CI/before_script.android.sh  | 25 +++++++++++++++++++++++++
 CMakeLists.txt               |  6 +++++-
 4 files changed, 66 insertions(+), 1 deletion(-)
 create mode 100755 CI/before_install.android.sh
 create mode 100755 CI/before_script.android.sh

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 65cfc7e092..5831a73b8e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -268,3 +268,35 @@ Windows_MSBuild_CS_RelWithDebInfo:
   variables:
     <<: *cs-targets
     config: "RelWithDebInfo"
+
+Debian_AndroidNDK_arm64-v8a:
+  tags:
+    - linux
+  image: debian:bullseye
+  variables:
+    CCACHE_SIZE: 3G
+  cache:
+    key: Debian_AndroidNDK_arm64-v8a.v2
+    paths:
+      - apt-cache/
+      - ccache/
+  before_script:
+    - export APT_CACHE_DIR=`pwd`/apt-cache && mkdir -pv $APT_CACHE_DIR
+    - echo "deb http://deb.debian.org/debian unstable main contrib" > /etc/apt/sources.list
+    - echo "google-android-ndk-installer google-android-installers/mirror select https://dl.google.com" | debconf-set-selections
+    - apt-get update -yq
+    - apt-get -o dir::cache::archives="$APT_CACHE_DIR" install -y cmake ccache curl unzip git build-essential google-android-ndk-installer
+  stage: build
+  script:
+    - export CCACHE_BASEDIR="`pwd`"
+    - export CCACHE_DIR="`pwd`/ccache" && mkdir -pv "$CCACHE_DIR"
+    - ccache -z -M "${CCACHE_SIZE}"
+    - CI/before_install.android.sh
+    - CI/before_script.android.sh
+    - cd build
+    - cmake --build . -- -j $(nproc)
+    - cmake --install .
+    - ccache -s
+  artifacts:
+    paths:
+      - build/install/
\ No newline at end of file
diff --git a/CI/before_install.android.sh b/CI/before_install.android.sh
new file mode 100755
index 0000000000..791377dd96
--- /dev/null
+++ b/CI/before_install.android.sh
@@ -0,0 +1,4 @@
+#!/bin/sh -ex
+
+curl -fSL -R -J https://gitlab.com/OpenMW/openmw-deps/-/raw/main/android/openmw-android-deps-20201018.zip -o ~/openmw-android-deps.zip
+unzip -o ~/openmw-android-deps -d /usr/lib/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr > /dev/null
diff --git a/CI/before_script.android.sh b/CI/before_script.android.sh
new file mode 100755
index 0000000000..8f0ec77da0
--- /dev/null
+++ b/CI/before_script.android.sh
@@ -0,0 +1,25 @@
+#!/bin/sh -ex
+
+# hack to work around: FFmpeg version is too old, 3.2 is required
+sed -i s/"NOT FFVER_OK"/"FALSE"/ CMakeLists.txt
+
+mkdir build
+cd build
+
+cmake \
+-DCMAKE_TOOLCHAIN_FILE=/usr/lib/android-sdk/ndk-bundle/build/cmake/android.toolchain.cmake \
+-DANDROID_ABI=arm64-v8a \
+-DANDROID_PLATFORM=android-21 \
+-DCMAKE_C_COMPILER_LAUNCHER=ccache \
+-DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+-DCMAKE_INSTALL_PREFIX=install \
+-DBUILD_BSATOOL=0 \
+-DBUILD_NIFTEST=0 \
+-DBUILD_ESMTOOL=0 \
+-DBUILD_LAUNCHER=0 \
+-DBUILD_MWINIIMPORTER=0 \
+-DBUILD_ESSIMPORTER=0 \
+-DBUILD_OPENCS=0 \
+-DBUILD_WIZARD=0 \
+-DMyGUI_LIBRARY="/usr/lib/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/libMyGUIEngineStatic.a" \
+..
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 15049548c9..829927de67 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -837,7 +837,11 @@ elseif(NOT APPLE)
 
         # Install binaries
         IF(BUILD_OPENMW)
-            INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw" DESTINATION "${BINDIR}" )
+            IF(ANDROID)
+                INSTALL(PROGRAMS "${INSTALL_SOURCE}/libopenmw.so" DESTINATION "${BINDIR}" )
+            ELSE(ANDROID)
+                INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw" DESTINATION "${BINDIR}" )
+            ENDIF(ANDROID)
         ENDIF(BUILD_OPENMW)
         IF(BUILD_LAUNCHER)
             INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw-launcher" DESTINATION "${BINDIR}" )