feat: write scripts for building a Pi 5 WebView (#2164)

webview/README.md

@@ -3,7 +3,7 @@
 > [!WARNING]
 > To build this, you need **very** beefy hardware. We are building this on a VM with 32 vCPUs and 128GB RAM. If you're trying to build it locally, you likely need to tweak [MAKE_CORES](https://github.com/Screenly/screenly-ose/blob/master/webview/build_qt5.sh#L12) to something lower, but you would still need a powerful workstation (32GB RAM minimum) to make this build.
 
-### Building for Raspberry Pi
+### Building for Raspberry Pi (1-4)
 
 Since our entire build environment resides inside a Docker container, you don't need to install any packages on the host system. Everything is confined to the Docker image. Do however note that as of this writing, the multi-platform support is still in beta so, you need to enable this. Instructions for how to get started with multi-platform builds can be found [here](https://medium.com/@artur.klauser/building-multi-architecture-docker-images-with-buildx-27d80f7e2408).
 
@@ -69,6 +69,10 @@ When you're done, you can stop and remove the container with the following comma
 docker compose -f docker-compose.x86.yml down
 ```
 
+### Building for Raspberry Pi 5
+
+See this [documentation](/webview/docs/build_webview_for_pi5.md) for details
+
 ## Usage
 
 DBus is used for communication.

webview/docker-compose.pi5.yml

@@ -0,0 +1,14 @@
+services:
+  builder:
+    build:
+      context: .
+      dockerfile: docker/Dockerfile.pi5
+    environment:
+      - GIT_HASH=${GIT_HASH}
+    tty: true
+    stdin_open: true
+    volumes:
+      - "~/tmp-pi5/build:/build:Z"
+      - "./examples:/src/examples"
+      - "./:/webview:ro"
+      - "./scripts/build_pi5_webview.sh:/scripts/build_pi5_webview.sh"

webview/docker/Dockerfile.pi5

@@ -0,0 +1,18 @@
+# vim:ft=dockerfile
+
+FROM balenalib/raspberrypi5-debian:bookworm
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Build dependencies for the Qt 6 app
+RUN apt-get -y update && apt-get install -y \
+    build-essential \
+    cmake \
+    qt6-base-dev \
+    qt6-webengine-dev
+
+RUN mkdir -p /scripts /src
+
+WORKDIR /build
+
+CMD ["bash"]

webview/docs/build_webview_for_pi5.md

@@ -0,0 +1,50 @@
+# Building WebView for Raspberry Pi 5
+
+## Prerequisites
+
+> [!NOTE]
+> At this time, you can only build the WebView from a Raspberry Pi 5 device.
+> You need to have the following installed and set up on your Raspberry Pi 5:
+> - Docker (arm64)
+> - Code editor of your choice (e.g., Visual Studio Code, Neovim, etc.)
+
+## Building the WebView
+
+Clone the repository:
+
+```bash
+$ git clone https://github.com/Screenly/Anthias.git
+```
+
+Navigate to the `webview` directory:
+
+```bash
+$ cd /path/to/Anthias/webview
+```
+
+Start the builder container with the following command:
+
+```bash
+docker compose -f docker-compose.pi5.yml up -d --build
+```
+
+You should now be able to invoke a run executing either of the following commands:
+
+```bash
+$ docker compose -f docker-compose.pi5.yml exec builder /webview/build_pi5.sh
+```
+
+```bash
+$ docker compose -f docker-compose.pi5.yml exec builder bash
+
+# Once you're in the container, run the following command:
+$ /scripts/build_pi5_webview.sh
+```
+
+The resulting files will be placed in `~/tmp-pi5/build/release`.
+
+When you're done, you can stop and remove the container with the following commands:
+
+```bash
+$ docker compose -f docker-compose.pi5.yml down
+```

webview/scripts/build_pi5_webview.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set -euo pipefail
+
+DEBIAN_VERSION='bookworm'
+QT_MAJOR='6'
+QT_MINOR='4'
+QT_PATCH='2'
+QT_VERSION="${QT_MAJOR}.${QT_MINOR}.${QT_PATCH}"
+CORE_COUNT="$(expr $(nproc) - 2)"
+
+function create_webview_archive() {
+    local ARCHIVE_NAME="webview-${QT_VERSION}-${DEBIAN_VERSION}-pi5-$GIT_HASH.tar.gz"
+    local ARCHIVE_DESTINATION="/build/release/${ARCHIVE_NAME}"
+
+    mkdir -p /build/release
+
+    cp -rf /webview /build
+    cd /build/webview
+    qmake6
+    make -j${CORE_COUNT}
+    make install
+
+    mkdir -p fakeroot/bin fakeroot/share/ScreenlyWebview
+    mv ScreenlyWebview fakeroot/bin/
+    cp -rf /webview/res fakeroot/share/ScreenlyWebview/
+
+    cd fakeroot
+
+    tar cfz ${ARCHIVE_DESTINATION} .
+    cd /build/release
+    sha256sum ${ARCHIVE_NAME} > ${ARCHIVE_DESTINATION}.sha256
+}
+
+create_webview_archive