initial commit for building AppImages for Linux x86_64

contrib/build-linux/appimage/Dockerfile

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+FROM ubuntu:14.04@sha256:cac55e5d97fad634d954d00a5c2a56d80576a08dcc01036011f26b88263f1578
+
+ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
+
+RUN apt-get update -q && \
+    apt-get install -qy \
+        git \
+        wget \
+        make \
+        autotools-dev \
+        autoconf \
+        libtool \
+        xz-utils \
+        libssl-dev \
+        zlib1g-dev \
+        libffi6 \
+        libffi-dev \
+        libusb-1.0-0-dev \
+        libudev-dev \
+        gettext \
+        libzbar0  \
+        && \
+    rm -rf /var/lib/apt/lists/* && \
+    apt-get autoremove -y && \
+    apt-get clean

contrib/build-linux/appimage/README.md

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+AppImage binary for Electrum
+============================
+
+This assumes an Ubuntu host, but it should not be too hard to adapt to another
+similar system. The docker commands should be executed in the project's root
+folder.
+
+1. Install Docker
+
+    ```
+    $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+    $ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
+    $ sudo apt-get update
+    $ sudo apt-get install -y docker-ce
+    ```
+
+2. Build image
+
+    ```
+    $ sudo docker build --no-cache -t electrum-appimage-builder-img contrib/build-linux/appimage
+    ```
+
+3. Build binary
+
+    ```
+    $ sudo docker run -it \
+        --name electrum-appimage-builder-cont \
+        -v $PWD:/opt/electrum \
+        --rm \
+        --workdir /opt/electrum/contrib/build-linux/appimage \
+        electrum-appimage-builder-img \
+        ./build.sh
+    ```
+
+4. The generated binary is in `./dist`.
+
+
+## FAQ
+
+### How can I see what is included in the AppImage?
+Execute the binary as follows: `./electrum*.AppImage --appimage-extract`

contrib/build-linux/appimage/apprun.sh

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+#!/bin/bash
+
+set -e
+
+APPDIR="$(dirname "$(readlink -e "$0")")"
+
+export LD_LIBRARY_PATH="${APPDIR}/usr/lib/:${APPDIR}/usr/lib/x86_64-linux-gnu${LD_LIBRARY_PATH+:$LD_LIBRARY_PATH}"
+export PATH="${APPDIR}/usr/bin:${PATH}"
+export LDFLAGS="-L${APPDIR}/usr/lib/x86_64-linux-gnu -L${APPDIR}/usr/lib"
+
+exec "${APPDIR}/usr/bin/python3.6" -s "${APPDIR}/usr/bin/electrum" "$@"

contrib/build-linux/appimage/build.sh

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+#!/bin/bash
+
+set -e
+
+PROJECT_ROOT="$(dirname "$(readlink -e "$0")")/../../.."
+CONTRIB="$PROJECT_ROOT/contrib"
+DISTDIR="$PROJECT_ROOT/dist"
+BUILDDIR="$CONTRIB/build-linux/appimage/build/appimage"
+APPDIR="$BUILDDIR/electrum.AppDir"
+CACHEDIR="$CONTRIB/build-linux/appimage/.cache/appimage"
+
+# pinned versions
+PYTHON_VERSION=3.6.8
+PKG2APPIMAGE_COMMIT="83483c2971fcaa1cb0c1253acd6c731ef8404381"
+LIBSECP_VERSION="452d8e4d2a2f9f1b5be6b02e18f1ba102e5ca0b4"
+
+
+VERSION=`git describe --tags --dirty --always`
+APPIMAGE="$DISTDIR/electrum-$VERSION-x86_64.AppImage"
+
+rm -rf "$BUILDDIR"
+mkdir -p "$APPDIR" "$CACHEDIR" "$DISTDIR"
+
+
+. "$CONTRIB"/build_tools_util.sh
+
+
+info "downloading some dependencies."
+download_if_not_exist "$CACHEDIR/functions.sh" "https://raw.githubusercontent.com/AppImage/pkg2appimage/$PKG2APPIMAGE_COMMIT/functions.sh"
+verify_hash "$CACHEDIR/functions.sh" "a73a21a6c1d1e15c0a9f47f017ae833873d1dc6aa74a4c840c0b901bf1dcf09c"
+
+download_if_not_exist "$CACHEDIR/appimagetool" "https://github.com/probonopd/AppImageKit/releases/download/11/appimagetool-x86_64.AppImage"
+verify_hash "$CACHEDIR/appimagetool" "c13026b9ebaa20a17e7e0a4c818a901f0faba759801d8ceab3bb6007dde00372"
+
+download_if_not_exist "$CACHEDIR/Python-$PYTHON_VERSION.tar.xz" "https://www.python.org/ftp/python/$PYTHON_VERSION/Python-$PYTHON_VERSION.tar.xz"
+verify_hash "$CACHEDIR/Python-$PYTHON_VERSION.tar.xz" "35446241e995773b1bed7d196f4b624dadcadc8429f26282e756b2fb8a351193"
+
+
+
+info "building python."
+tar xf "$CACHEDIR/Python-$PYTHON_VERSION.tar.xz" -C "$BUILDDIR"
+(
+    cd "$BUILDDIR/Python-$PYTHON_VERSION"
+    export SOURCE_DATE_EPOCH=1530212462
+    ./configure \
+      --cache-file="$CACHEDIR/python.config.cache" \
+      --prefix="$APPDIR/usr" \
+      --enable-ipv6 \
+      --enable-shared \
+      --with-threads \
+      -q
+    make -s
+    make -s install > /dev/null
+)
+
+
+info "building libsecp256k1."
+(
+    git clone https://github.com/bitcoin-core/secp256k1 "$CACHEDIR"/secp256k1 || (cd "$CACHEDIR"/secp256k1 && git pull)
+    cd "$CACHEDIR"/secp256k1
+    git reset --hard "$LIBSECP_VERSION"
+    git clean -f -x -q
+    export SOURCE_DATE_EPOCH=1530212462
+    ./autogen.sh
+    echo "LDFLAGS = -no-undefined" >> Makefile.am
+    ./configure \
+      --prefix="$APPDIR/usr" \
+      --enable-module-recovery \
+      --enable-experimental \
+      --enable-module-ecdh \
+      --disable-jni \
+      -q
+    make -s
+    make -s install > /dev/null
+)
+
+
+appdir_python() {
+  env \
+    PYTHONNOUSERSITE=1 \
+    LD_LIBRARY_PATH="$APPDIR/usr/lib:$APPDIR/usr/lib/x86_64-linux-gnu${LD_LIBRARY_PATH+:$LD_LIBRARY_PATH}" \
+    "$APPDIR/usr/bin/python3.6" "$@"
+}
+
+python='appdir_python'
+
+
+info "installing pip."
+"$python" -m ensurepip
+
+
+info "preparing electrum-locale."
+(
+    cd "$PROJECT_ROOT"
+    git submodule update --init
+
+    pushd "$CONTRIB"/deterministic-build/electrum-locale
+    if ! which msgfmt > /dev/null 2>&1; then
+        echo "Please install gettext"
+        exit 1
+    fi
+    for i in ./locale/*; do
+        dir="$PROJECT_ROOT/electrum/$i/LC_MESSAGES"
+        mkdir -p $dir
+        msgfmt --output-file="$dir/electrum.mo" "$i/electrum.po" || true
+    done
+    popd
+)
+
+
+info "installing electrum and its dependencies."
+mkdir -p "$CACHEDIR/pip_cache"
+"$python" -m pip install --cache-dir "$CACHEDIR/pip_cache" -r "$CONTRIB/deterministic-build/requirements.txt"
+"$python" -m pip install --cache-dir "$CACHEDIR/pip_cache" -r "$CONTRIB/deterministic-build/requirements-binaries.txt"
+"$python" -m pip install --cache-dir "$CACHEDIR/pip_cache" -r "$CONTRIB/deterministic-build/requirements-hw.txt"
+"$python" -m pip install --cache-dir "$CACHEDIR/pip_cache" "$PROJECT_ROOT"
+
+
+info "copying zbar"
+cp "/usr/lib/libzbar.so.0" "$APPDIR/usr/lib/libzbar.so.0"
+
+
+info "desktop integration."
+cp "$PROJECT_ROOT/electrum.desktop" "$APPDIR/electrum.desktop"
+cp "$PROJECT_ROOT/icons/electrum.png" "$APPDIR/electrum.png"
+
+
+# add launcher
+cp "$CONTRIB/build-linux/appimage/apprun.sh" "$APPDIR/AppRun"
+
+info "finalizing AppDir."
+(
+    export PKG2AICOMMIT="$PKG2APPIMAGE_COMMIT"
+    . "$CACHEDIR/functions.sh"
+
+    cd "$APPDIR"
+    # copy system dependencies
+    # note: temporarily move PyQt5 out of the way so
+    # we don't try to bundle its system dependencies.
+    mv "$APPDIR/usr/lib/python3.6/site-packages/PyQt5" "$BUILDDIR"
+    copy_deps; copy_deps; copy_deps
+    move_lib
+    mv "$BUILDDIR/PyQt5" "$APPDIR/usr/lib/python3.6/site-packages"
+
+    # apply global appimage blacklist to exclude stuff
+    # move usr/include out of the way to preserve usr/include/python3.6m.
+    mv usr/include usr/include.tmp
+    delete_blacklisted
+    mv usr/include.tmp usr/include
+)
+
+
+info "stripping binaries from debug symbols."
+strip_binaries()
+{
+  chmod u+w -R "$APPDIR"
+  {
+    printf '%s\0' "$APPDIR/usr/bin/python3.6"
+    find "$APPDIR" -type f -regex '.*\.so\(\.[0-9.]+\)?$' -print0
+  } | xargs -0 --no-run-if-empty --verbose -n1 strip
+}
+strip_binaries
+
+remove_emptydirs()
+{
+  find "$APPDIR" -type d -empty -print0 | xargs -0 --no-run-if-empty rmdir -vp --ignore-fail-on-non-empty
+}
+remove_emptydirs
+
+
+info "removing some unneeded stuff to decrease binary size."
+rm -rf "$APPDIR"/usr/lib/python3.6/test
+rm -rf "$APPDIR"/usr/lib/python3.6/config-3.6m-x86_64-linux-gnu
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/translations/qtwebengine_locales
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/resources/qtwebengine_*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/qml
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Web*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Designer*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Qml*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Quick*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Location*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Test*
+rm -rf "$APPDIR"/usr/lib/python3.6/site-packages/PyQt5/Qt/lib/libQt5Xml*
+
+
+info "creating the AppImage."
+(
+    cd "$BUILDDIR"
+    chmod +x "$CACHEDIR/appimagetool"
+    "$CACHEDIR/appimagetool" --appimage-extract
+    env VERSION="$VERSION" ./squashfs-root/AppRun --no-appstream --verbose "$APPDIR" "$APPIMAGE"
+)
+
+
+info "done."
+ls -la "$DISTDIR"
+sha256sum "$DISTDIR"/*