Android docker build proposal.

Using external image just for the NDK and focusing on the two
most popular architectures.

3 files changed, 39 insertions, 0 deletions

diff --git a/doc/building.rst b/doc/building.rst
index 9bc5c03ad..b4cdb7a12 100644
--- a/doc/building.rst
+++ b/doc/building.rst
@@ -250,6 +250,17 @@ executed on a browser, use::
   em++ -s ALLOW_MEMORY_GROWTH=1 -s DISABLE_EXCEPTION_CATCHING=0 -s WASM=1 \
      --preload-file src/tests/data botan-test.bc -o botan-test.html
 
+Docker
+--------
+
+To build android version, there is the possibility to use
+the docker way::
+
+  sudo SDK=21 src/scripts/docker-android.sh
+
+This will produce the docker-builds/android folder containing
+each architecture compiled.
+
 Supporting Older Distros
 --------------------------
 
diff --git a/src/scripts/Dockerfile.android b/src/scripts/Dockerfile.android
new file mode 100644
index 000000000..57514532c
--- /dev/null
+++ b/src/scripts/Dockerfile.android
@@ -0,0 +1,22 @@
+FROM debian:stretch AS debian
+ARG SDK
+RUN apt-get update && apt-get -y --no-install-recommends install \
+	libboost-all-dev \
+	make \
+	python3-sphinx
+
+RUN mkdir -p /botan/android
+WORKDIR /botan
+COPY --from=bitriseio/android-ndk /opt/android-ndk android-ndk
+COPY configure.py configure.py
+COPY src src
+COPY doc doc
+COPY license.txt license.txt
+COPY news.rst news.rst
+ENV PATH=$PATH:android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/
+RUN ./configure.py --prefix=android/arm --os=android --cpu=arm --cc=clang --cc-bin=armv7a-linux-androideabi${SDK}-clang++ --ar-command=arm-linux-androideabi-ar --with-sphinx
+RUN make -j`getconf _NPROCESSORS_ONLN`
+RUN make install && make clean
+RUN ./configure.py --prefix=android/arm64 --os=android --cpu=arm64 --cc=clang --cc-bin=aarch64-linux-android${SDK}-clang++ --ar-command=aarch64-linux-android-ar --with-sphinx
+RUN make -j`getconf _NPROCESSORS_ONLN`
+RUN make install
diff --git a/src/scripts/docker-android.sh b/src/scripts/docker-android.sh
new file mode 100755
index 000000000..1428c5526
--- /dev/null
+++ b/src/scripts/docker-android.sh
@@ -0,0 +1,6 @@
+VERSION=`./configure.py --version`
+mkdir -p docker-builds
+docker build -f src/scripts/Dockerfile.android --force-rm -t botan-android-${VERSION} --build-arg SDK=${SDK} .
+docker create --name botan-android-${VERSION} botan-android-${VERSION}
+docker cp botan-android-${VERSION}:/botan/android docker-builds
+docker rm -f botan-android-${VERSION}