Add Ubuntu 26.04 image (#77)

Author: ubruhin

README.md

@@ -46,6 +46,19 @@ In addition, this image contains necessary tools for dynamic linking of
 LibrePCB (pkg-config, libdxflib, libmuparser, libquazip, libpolyclipping,
 googletest).
 
+### `ubuntu-26.04`
+
+Based on Ubuntu 26.04, containing Qt from the official Ubuntu package
+repository. This image is intended to check if LibrePCB compiles on a standard
+Ubuntu.
+
+In addition, this image contains necessary tools for dynamic linking of
+LibrePCB (pkg-config, libdxflib, libmuparser, libquazip, libpolyclipping,
+googletest).
+
+Also `clang-tidy`, `clang-tidy-cache` and Clazy for the static code analysis
+are installed in this image.
+
 ### `windowsservercore-ltsc2025-qt6.10-64bit`
 
 Based on Windows Server Core LTSC2025 with Qt6.10.x, MinGW 13.1.0 64-bit

ubuntu-26.04/Dockerfile

@@ -0,0 +1,101 @@
+FROM ubuntu:26.04
+
+# Install APT packages
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
+    bzip2 \
+    ca-certificates \
+    ccache \
+    clang \
+    clang-tidy \
+    # For clang-apply-replacements, required by run-clang-tidy
+    clang-tools \
+    clazy \
+    cmake \
+    curl \
+    dbus \
+    file \
+    g++ \
+    git \
+    googletest \
+    libc++-dev \
+    libc++abi-dev \
+    libdxflib-dev \
+    libdxflib3 \
+    libglu1-mesa-dev \
+    libgmock-dev \
+    libgtest-dev \
+    libmuparser-dev \
+    libmuparser2v5 \
+    libocct-*-dev \
+    libpolyclipping-dev \
+    libpolyclipping22 \
+    libqt6opengl6-dev \
+    libqt6openglwidgets6 \
+    libqt6sql6-sqlite \
+    libqt6svg6-dev \
+    # https://www.mail-archive.com/ubuntu-bugs@lists.ubuntu.com/msg6249494.html
+    libstdc++-16-dev \
+    libtbb-dev \
+    libxi-dev \
+    make \
+    ninja-build \
+    occt-misc \
+    openssl \
+    pkg-config \
+    qt6-base-dev \
+    qt6-image-formats-plugins \
+    qt6-l10n-tools \
+    qt6-tools-dev \
+    qt6-tools-dev-tools \
+    wget \
+    xvfb \
+    zlib1g \
+    zlib1g-dev \
+  && rm -rf /var/lib/apt/lists/*
+
+# Install Rust
+# Make .cargo/ writable for everyone to allow running the container as non-root.
+ARG RUST_VERSION="1.95.0"
+ENV RUSTUP_HOME="/.rustup" \
+    CARGO_HOME="/.cargo" \
+    PATH="/.cargo/bin:$PATH"
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
+    | sh -s -- -y --default-toolchain $RUST_VERSION --profile minimal --no-modify-path \
+  && cargo install cargo-llvm-cov \
+  && chmod -R 777 $RUSTUP_HOME \
+  && chmod -R 777 $CARGO_HOME
+
+# Install UV
+# Set its python directory to a known, user-writable path to allow accessing the
+# python versions installed during docker build from within CI runs which are
+# run as non-root.
+ARG UV_VERSION="0.11.8"
+ARG UV_URL="https://github.com/astral-sh/uv/releases/download/$UV_VERSION/uv-x86_64-unknown-linux-gnu.tar.gz"
+ENV UV_PYTHON_INSTALL_DIR="/.uv/python"
+RUN wget -c "${UV_URL}" -O /tmp.tar.gz \
+  && tar -xzf /tmp.tar.gz --strip-components=1 -C /usr/local/bin/ \
+  && rm /tmp.tar.gz \
+  && mkdir -p $UV_PYTHON_INSTALL_DIR && chmod 777 $UV_PYTHON_INSTALL_DIR
+
+# Pre-install a Python version
+ARG PYTHON_VERSION="3.14"
+RUN uv python install $PYTHON_VERSION
+
+# Install ctcache (clang-tidy-cache)
+ARG CTCACHE_URL="https://github.com/matus-chochlik/ctcache/raw/0c7fee26e09ae8a393ed7d56164102da118ab23a/src/ctcache/clang_tidy_cache.py"
+ENV CTCACHE_CLANG_TIDY="/usr/bin/clang-tidy" \
+    CTCACHE_DIR="/.ctcache" \
+    CTCACHE_KEEP_COMMENTS=1
+RUN wget -c "${CTCACHE_URL}" -O /usr/local/bin/ctcache.py \
+  && printf '#!/bin/bash\n/usr/local/bin/ctcache.py "${CTCACHE_CLANG_TIDY}" "${@}"\n' > /usr/local/bin/ctcache \
+  && chmod +x /usr/local/bin/ctcache.py /usr/local/bin/ctcache \
+  && mkdir "$CTCACHE_DIR" && chmod -R 777 "$CTCACHE_DIR"
+
+# Make ccache directory writable for everyone to allow running the container
+# as non-root.
+ENV CCACHE_DIR="/.ccache"
+RUN mkdir $CCACHE_DIR && chmod -R 777 $CCACHE_DIR
+
+# LibrePCB's unittests expect that there is a USERNAME environment variable
+ENV USERNAME="root"