Add circleci and Docker support

.circleci/Docker/Docker.variables

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+DOCKER_IMAGE_NAME=tomahawkmusicplayer/ubuntu
+DOCKER_IMAGE_VER=latest

.circleci/Docker/Dockerfile

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+FROM ubuntu:19.04 as base
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+    build-essential \
+    ca-certificates \
+    ninja-build \
+    openssh-client \
+    curl \
+    gnupg2 \
+    gosu \
+    wget \
+    locales \
+    git \
+    subversion \
+    make \
+    pkg-config \
+    unzip \
+    xz-utils \
+    software-properties-common \
+    sudo \
+    apt-utils \
+    && rm -rf /var/lib/apt/lists/*
+
+# LLVM/Clang
+ENV CLANG_VERSION=9
+RUN wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - \
+    && apt-add-repository "deb http://apt.llvm.org/disco/ llvm-toolchain-disco-$CLANG_VERSION main" \
+    && apt-get update && apt-get install -y \
+    clang-$CLANG_VERSION \
+    clang-tidy-$CLANG_VERSION \
+    clang-format-$CLANG_VERSION \
+    llvm-$CLANG_VERSION-dev \
+    libclang-$CLANG_VERSION-dev \
+    && update-alternatives \
+    --install /usr/bin/clang clang /usr/bin/clang-$CLANG_VERSION 100 \
+    --slave /usr/bin/clang++ clang++ /usr/bin/clang++-$CLANG_VERSION \
+    --slave /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-$CLANG_VERSION \
+    --slave /usr/bin/clang-format clang-format /usr/bin/clang-format-$CLANG_VERSION
+
+# GCC
+ENV GCC_VERSION=9
+RUN sudo apt-get update \
+    && sudo apt-get install -y --no-install-recommends \
+    g++-$GCC_VERSION \
+    gcc-$GCC_VERSION \
+    && sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 100 --slave /usr/bin/g++ g++ /usr/bin/g++-9 --slave /usr/bin/gcov gcov /usr/bin/gcov-9
+
+# Tomahawk deps
+RUN sudo apt-get update \
+    && apt-get install -y --no-install-recommends \
+    cmake \
+    libattica-dev \
+    libboost-dev    \
+    libboost-filesystem-dev \
+    libboost-iostreams-dev \
+    libboost-thread-dev \
+    libfftw3-dev \
+    libgnutls28-dev \
+    libgsasl7-dev \
+    liblastfm-dev \
+    liblastfm5-dev \
+    liblucene++-dev \
+    libphonon-dev \
+    libphononexperimental-dev \
+    libqca-qt5-2-dev \
+    libqca2-dev \
+    libqca2-plugins \
+    libqjson-dev \
+    libqt5svg5-dev \
+    libqt5webkit5-dev \
+    libqt5webkit5\
+    libsamplerate0-dev \
+    libsparsehash-dev \
+    libssl-dev \
+    libtelepathy-qt5-dev \
+    libvlc-dev \
+    libvlccore-dev \
+    libx11-dev \
+    libz-dev \
+    qt5-default \
+    qtbase5-dev \
+    qttools5-dev \
+    qttools5-dev-tools \
+    zlib1g-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN git clone  --depth 1 https://github.com/zaphoyd/websocketpp.git --branch master --single-branch websocketpp \
+    && mkdir websocketpp/build && cd websocketpp/build \
+    && cmake .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r websocketpp
+
+RUN git clone --depth 1 https://github.com/frankosterfeld/qtkeychain.git --branch master --single-branch qtkeychain \
+    && mkdir qtkeychain/build && cd qtkeychain/build \
+    && cmake .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r qtkeychain
+
+RUN git clone --depth 1 https://github.com/taglib/taglib.git --branch master --single-branch taglib \
+    && mkdir taglib/build && cd taglib/build \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr \
+      -DCMAKE_BUILD_TYPE=Release  \
+      -DBUILD_SHARED_LIBS=ON .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r taglib
+
+RUN git clone --depth 1 https://anongit.kde.org/extra-cmake-modules.git --branch master --single-branch ecm \
+    && mkdir ecm/build && cd ecm/build \
+    && cmake -DCMAKE_BUILD_TYPE=Release .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r ecm
+
+RUN git clone --depth 1 https://github.com/KDE/attica.git --branch master --single-branch attica \
+    && mkdir attica/build && cd attica/build \
+    && cmake -DCMAKE_BUILD_TYPE=Release .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r attica
+
+RUN git clone --depth 1 https://github.com/stachenov/quazip.git --branch master --single-branch quazip \
+    && mkdir quazip/build && cd quazip/build \
+    && cmake -DCMAKE_BUILD_TYPE=Release .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r quazip
+
+RUN git clone --depth 1 https://github.com/euroelessar/jreen.git --branch master --single-branch jreen \
+    && mkdir jreen/build && cd jreen/build \
+    && cmake -DCMAKE_BUILD_TYPE=Release .. \
+    && sudo cmake --build . -j 16 --target install \
+    && cd ../.. \
+    && rm -r jreen
+
+# Language
+ENV LANG=en_US.UTF-8
+RUN echo "$LANG UTF-8" > /etc/locale.gen && locale-gen $LANG && update-locale LANG=$LANG
+
+#entrypoint, if it is last here makes it easy to build new image without rebuilding all layers
+COPY entrypoint.sh /usr/local/bin/entrypoint.sh
+COPY build-and-test.sh /usr/local/bin/build-and-test.sh
+RUN chmod +x /usr/local/bin/build-and-test.sh
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+
+WORKDIR /tmp/workspace

.circleci/Docker/build-and-test.sh

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+#!/bin/bash
+
+mkdir build
+cd build
+cmake -G Ninja -DCMAKE_BUILD_TYPE=${BUILD_TYPE:-Debug} ..
+ninja
+ninja install
+env CTEST_OUTPUT_ON_FAILURE=1 ninja test

.circleci/Docker/docker-commands.sh

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+#!/bin/bash
+
+get_repository_root(){
+    local REPOSITORY_ROOT="$(git rev-parse --show-toplevel)"
+    echo "$REPOSITORY_ROOT"
+}
+
+get_repository_subdir(){
+    REPOSITORY_ROOT=$(get_repository_root)
+    CUR_DIR=$(pwd)
+    SUB_DIR=$(echo "$CUR_DIR" | grep -oP "^$REPOSITORY_ROOT\K.*")
+    echo "$SUB_DIR"
+}
+
+docker-interactive() {
+    REPOSITORY_ROOT=$(get_repository_root)
+    SUB_DIR=$(get_repository_subdir)
+
+    echo "SUB_DIR: " "$SUB_DIR"
+
+    source $REPOSITORY_ROOT/.circleci/Docker/Docker.variables
+    echo "Starting container: " "$DOCKER_IMAGE_NAME:$DOCKER_IMAGE_VER"
+
+    echo "Got command: " "$*"
+    USER_ID=$(id -u $USER)
+    echo "Using USER_ID:" $USER_ID
+
+    docker run  --env LOCAL_USER_ID=$USER_ID \
+                --rm \
+                --interactive \
+                --volume $REPOSITORY_ROOT:/tmp/workspace \
+                --workdir /tmp/workspace$SUB_DIR \
+                --env "TERM=xterm-256color" \
+                --tty \
+                "$DOCKER_IMAGE_NAME:$DOCKER_IMAGE_VER" /bin/bash
+}
+
+docker-help() {
+    echo "docker-interactive     - Start an interactive bash session inside docker container and remove it on exit"
+    echo "docker-help            - Show this help text"
+}

.circleci/Docker/entrypoint.sh

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+#!/bin/bash
+
+# Add local user
+# Either use the LOCAL_USER_ID if passed in at runtime or
+# fallback
+USER_ID=${LOCAL_USER_ID:-9001}
+USER=docker
+UPWD=Docker!
+
+echo "Starting with USER: $USER and UID : $USER_ID"
+useradd --shell /bin/bash -u $USER_ID -o -c "docker user" -m "$USER"
+export HOME=/home/$USER
+
+# Add user to sudoers
+echo "docker ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/10-installer
+# Add root password
+echo "root":$UPWD | chpasswd
+# Add user password
+echo "$USER:$UPWD" | chpasswd
+
+if [ -z "$CLANG_VERSION" ]; then
+  echo "No CLANG_VERSION set"
+else
+  echo "alias clang=clang-$CLANG_VERSION" >> $HOME/.bashrc
+  echo "alias clang-tidy=clang-tidy-$CLANG_VERSION" >> $HOME/.bashrc
+  echo "alias clang-format=clang-format-$CLANG_VERSION" >> $HOME/.bashrc
+fi
+
+# Startup user
+exec gosu "$USER" "$@"