own dockerfile for appimage

buildscripts/docker/Dockerfile.ubuntu_for_appimage

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+#   Copyright © 2019-2021 by The qTox Project Contributors
+#
+#   This file is part of qTox, a Qt-based graphical interface for Tox.
+#   qTox is libre software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   qTox is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with qTox.  If not, see <http://www.gnu.org/licenses/>
+
+FROM ubuntu:18.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && \
+        apt-get -y --force-yes install \
+        build-essential \
+        autoconf \
+        automake \
+        libtool \
+        cmake \
+        extra-cmake-modules \
+        git \
+        libavcodec-dev \
+        libavdevice-dev \
+        libavfilter-dev \
+        libavutil-dev \
+        libexif-dev \
+        libgdk-pixbuf2.0-dev \
+        libglib2.0-dev \
+        libgtk2.0-dev \
+        libopenal-dev \
+        libopus-dev \
+        libcurl4-gnutls-dev \
+        libnghttp2-dev \
+        libidn2-dev \
+        librtmp-dev \
+        libssh2-1-dev \
+        libpsl-dev \
+        nettle-dev \
+        libgnutls28-dev \
+        libgssapi-krb5-2 \
+        libkrb5-dev \
+        libk5crypto3 \
+        libldap2-dev \
+        zlib1g-dev \
+        libqrencode-dev \
+        libqt5opengl5-dev \
+        libqt5svg5-dev \
+        libsodium-dev \
+        libsqlcipher-dev \
+        libswresample-dev \
+        libswscale-dev \
+        libvpx-dev \
+        libkf5sonnet-dev \
+        libxss-dev \
+        qt5-default \
+        qttools5-dev \
+        zsync \
+        libarchive-dev \
+        libfuse-dev \
+        liblzma-dev \
+        libglib2.0-dev \
+        libssl-dev \
+        libinotifytools0-dev \
+        liblz4-dev \
+        libcairo-dev \
+        desktop-file-utils \
+        wget \
+        xxd \
+        ca-certificates \
+        curl \
+        patchelf \
+        lcov && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY download/common.sh /build/download/common.sh
+COPY build_utils.sh /build/build_utils.sh
+
+COPY download/download_snore.sh /build/download/download_snore.sh
+COPY build_snore_linux.sh /build/build_snore_linux.sh
+COPY patches/snore.patch /build/patches/snore.patch
+RUN mkdir -p /src/snore && \
+    cd /src/snore && \
+    /build/build_snore_linux.sh --system-install && \
+    rm -fr /src/snore
+
+COPY download/download_ldqt.sh /build/download/download_ldqt.sh
+COPY build_ldqt_linux.sh /build/build_ldqt_linux.sh
+RUN mkdir -p /src/ldqt && \
+    cd /src/ldqt && \
+    /build/build_ldqt_linux.sh && \
+    rm -fr /src/ldqt
+
+COPY download/download_aitool.sh /build/download/download_aitool.sh
+COPY build_aitool_linux.sh /build/build_aitool_linux.sh
+RUN mkdir -p /src/aitool && \
+    cd /src/aitool && \
+    /build/build_aitool_linux.sh && \
+    rm -fr /src/aitool
+
+COPY download/download_toxcore.sh /build/download/download_toxcore.sh
+COPY download/download_toxext.sh /build/download/download_toxext.sh
+COPY download/download_toxext_messages.sh /build/download/download_toxext_messages.sh
+COPY build_toxcore_linux.sh /build/build_toxcore_linux.sh
+COPY patches/*.patch /build/patches/
+
+RUN apt-get update && \
+        apt-get -y --force-yes install \
+        libx264-dev \
+        libbz2-dev \
+        libxv-dev \
+        libsdl2-dev \
+        libzmq5-dev \
+        libwebp-dev \
+        libssh-dev \
+        libpulse-dev \
+        libopenmpt-dev \
+        libbs2b-dev \
+        libbluray-dev \
+        libass-dev \
+        libcrystalhd-dev \
+        libvdpau-dev \
+        libva-dev \
+        libva-x11-2 \
+        libva-drm2 \
+        libcdio-cdda-dev \
+        libcdio-dev \
+        libcdio-paranoia-dev \
+        libsndio-dev \
+        libjack-dev \
+        libasound-dev \
+        libxml2-dev \
+        libzvbi-dev \
+        libxvidcore-dev \
+        libx265-dev \
+        libwebpmux3 \
+        libwavpack-dev \
+        libvorbisenc2 \
+        libvorbis-dev \
+        libtwolame-dev \
+        libtheora-dev \
+        libspeex-dev \
+        libsoxr-dev \
+        libsnappy-dev \
+        libshine-dev \
+        librubberband-dev \
+        libopenjp2-7-dev \
+        libopencv-core-dev \
+        libopencv-imgproc-dev \
+        libmysofa-dev \
+        libmp3lame-dev \
+        libgsm1-dev \
+        libgpgme-dev \
+        flite-dev \
+        libdc1394-22-dev \
+        libcaca-dev \
+        libraw1394-dev \
+        libavc1394-dev \
+        libiec61883-dev \
+        libchromaprint-dev \
+        librsvg2-dev \
+        libgme-dev \
+        && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /src/tox && \
+    cd /src/tox && \
+    /build/build_toxcore_linux.sh && \
+    rm -fr /src/tox
+
+RUN echo '/usr/local/lib/' >> /etc/ld.so.conf.d/locallib.conf && \
+    ldconfig
+
+WORKDIR /qtox