Build Godot with Mono for Android. Use together with: https://gist.github.com/neikeq/8f0f4872ab4a07873c35ba4465215344

build.godot.android.sh

#!/bin/bash

set -e;
set -o pipefail;

set -x;

: ${GODOT_SOURCE_ROOT:?Variable GODOT_SOURCE_ROOT not set or empty}
: ${MONO_INSTALLS_DIR:=${HOME}/mono-installs}

if [ ! -d "${GODOT_SOURCE_ROOT}" ]; then
    echo "ERROR: Directory not found: ${GODOT_SOURCE_ROOT}" 1>&2
    exit 1
fi

if [ ! -d "${MONO_INSTALLS_DIR}" ]; then
    echo "ERROR: Directory not found: ${MONO_INSTALLS_DIR}" 1>&2
    exit 1
fi

# The SCons script expects an absolute path
MONO_INSTALLS_DIR="$( cd "${MONO_INSTALLS_DIR}" >/dev/null 2>&1 && pwd )"

MONO_CONFIGURATION=${MONO_CONFIGURATION:-release}

cd ${GODOT_SOURCE_ROOT};

ANDROID_HOME=${ANDROID_HOME:-${HOME}/Android/Sdk}
ANDROID_NDK_HOME=${ANDROID_NDK_HOME:-${ANDROID_HOME}/ndk-bundle}
ANDROID_NDK_ROOT=${ANDROID_NDK_HOME}

ANDROID_API_VERSION=${ANDROID_API_VERSION:-18}

export ANDROID_HOME ANDROID_NDK_ROOT ANDROID_NDK_HOME

SCONS_NUM_JOBS=${SCONS_NUM_JOBS:-2}
SCONS_VERBOSE=${SCONS_VERBOSE:-yes}

scons_build() {
    local SCONS_TARGET=${1}
    local TARGET_ARCH=${2}
    local SCONS_ANDROID_ARCH=${3}

    local MONO_PREFIX=${MONO_INSTALLS_DIR}/android-${TARGET_ARCH}-${MONO_CONFIGURATION}

    scons platform=android target=${SCONS_TARGET} tools=no \
        android_arch=${SCONS_ANDROID_ARCH} ndk_platform=android-${ANDROID_API_VERSION} \
        module_mono_enabled=yes mono_prefix=${MONO_PREFIX} \
        verbose=${SCONS_VERBOSE} -j ${SCONS_NUM_JOBS}
}

# ARGS:         SCONS_TARGET    TARGET_ARCH     SCONS_ANDROID_ARCH
scons_build     release_debug   armeabi-v7a     armv7
scons_build     release         armeabi-v7a     armv7
scons_build     release_debug   arm64-v8a       arm64v8
scons_build     release         arm64-v8a       arm64v8
scons_build     release_debug   x86             x86
scons_build     release         x86             x86
scons_build     release_debug   x86_64          x86_64
scons_build     release         x86_64          x86_64

cd platform/android/java;

./gradlew clean;
./gradlew generateGodotTemplates;

cd ../../..;

set +x;