Merge branch 'doublecrossed'

Author: c-x-berger

.travis.yml

@@ -1,3 +1,4 @@
+--- 
 addons: 
   apt: 
     packages: 
@@ -9,9 +10,12 @@ addons:
       - gstreamer1.0-plugins-ugly
       - gstreamer1.0-libav
       - libgstrtspserver-1.0-dev
+    update: true
+arch:
+  - amd64 
+  - arm64 # while this technically isn't the RPi4 it's a nice proof of concept 
 cache: cargo
 dist: bionic
 language: rust
 rust: 
   - stable
-

Cross.toml

@@ -0,0 +1,2 @@
+[target.armv7-unknown-linux-gnueabihf]
+image = "rusty-engine:latest"

ci/build.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -e
+
+if [ "${CARGO}" == "cross" ]; then
+    sudo apt-get install -y qemu-user-static
+    # set up docker
+    echo Installing cross
+    cargo install cross || true
+    sudo systemctl start docker
+    echo Building docker image
+    $(pwd)/cross-build.sh
+fi
+eval "$CARGO $TASK --target $TARGET"

cross-build.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -e
+
+# bind last argument in portable manner
+for last in "$@"; do :; done
+
+docker_qemu="docker/qemu-arm-static"
+rm -f ${docker_qemu}
+cp $(which qemu-arm-static) ${docker_qemu}
+docker build -t rusty-engine:latest docker/
+rm ${docker_qemu}
+
+if [ "${last}" == "run" ]; then
+    docker run --rm --privileged \
+        --volume "$(pwd)":/docking-bay \
+        --name "opsi-rusty-engine-arm" \
+        rusty-engine:latest \
+        bash -e -o pipefail -c \
+        "uname -a"
+fi

docker/Dockerfile

@@ -0,0 +1,26 @@
+FROM arm32v7/debian:buster
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+COPY qemu-arm-static /usr/bin/qemu-arm-static
+
+RUN apt-get -y update
+# basics
+RUN apt-get install -y build-essential curl debhelper g++-arm-linux-gnueabihf libc6-dev-armhf-cross
+# rust
+ENV RUSTUP_HOME=/opt/rustup
+ENV CARGO_HOME=/opt/cargo
+RUN curl https://sh.rustup.rs -sSf | sh -s -- --profile minimal --default-toolchain stable -y
+ENV PATH="${PATH}:/opt/cargo/bin"
+ENV RUST_TOOLCHAIN="stable"
+RUN rustup toolchain install "${RUST_TOOLCHAIN}"
+RUN rustup default "${RUST_TOOLCHAIN}"
+# gstreamer
+RUN apt-get install --no-install-recommends -y libgstreamer1.0-dev \
+    libgstreamer-plugins-base1.0-dev \
+    gstreamer1.0-plugins-base \
+    gstreamer1.0-plugins-good \
+    gstreamer1.0-plugins-bad \
+    gstreamer1.0-plugins-ugly \
+    gstreamer1.0-libav:armhf \
+    libgstrtspserver-1.0-dev