Luke Granger-Brown
57725ef3ec
git-subtree-dir: third_party/nixpkgs git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
146 lines
3.5 KiB
Bash
Executable file
146 lines
3.5 KiB
Bash
Executable file
#!@shell@
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# shellcheck shell=bash
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if [ -n "$DEBUG" ] ; then
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set -x
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fi
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PATH="@path@:$PATH"
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apprun_opt=true
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OWD=$(readlink -f .)
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# can be read by appimages: https://docs.appimage.org/packaging-guide/environment-variables.html
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export OWD
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export APPIMAGE
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# src : AppImage
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# dest : let's unpack() create the directory
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unpack() {
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local src="$1"
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local out="$2"
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# https://github.com/AppImage/libappimage/blob/ca8d4b53bed5cbc0f3d0398e30806e0d3adeaaab/src/libappimage/utils/MagicBytesChecker.cpp#L45-L63
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local appimageSignature;
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appimageSignature="$(LC_ALL=C readelf -h "$src" | awk 'NR==2{print $10$11;}')"
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local appimageType;
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appimageType="$(LC_ALL=C readelf -h "$src" | awk 'NR==2{print $12;}')"
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# check AppImage signature
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if [ "$appimageSignature" != "4149" ]; then
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echo "Not an AppImage file"
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exit
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fi
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case "$appimageType" in
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"01")
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echo "Uncompress $(basename "$src") of type $appimageType"
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mkdir "$out"
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pv "$src" | bsdtar -x -C "$out" -f -
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;;
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"02")
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# This method avoid issues with non executable appimages,
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# non-native packer, packer patching and squashfs-root destination prefix.
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# multiarch offset one-liner using same method as AppImage
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# see https://gist.github.com/probonopd/a490ba3401b5ef7b881d5e603fa20c93
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offset=$(LC_ALL=C readelf -h "$src" | awk 'NR==13{e_shoff=$5} NR==18{e_shentsize=$5} NR==19{e_shnum=$5} END{print e_shoff+e_shentsize*e_shnum}')
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echo "Uncompress $(basename "$src") of type $appimageType @ offset $offset"
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unsquashfs -q -d "$out" -o "$offset" "$src"
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chmod go-w "$out"
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;;
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# "03")
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# get ready, https://github.com/TheAssassin/type3-runtime
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*)
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echo Unsupported AppImage Type: "$appimageType"
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exit
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;;
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esac
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echo "$(basename "$src") is now installed in $out"
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}
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apprun() {
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SHA256=$(sha256sum "$APPIMAGE" | awk '{print $1}')
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export APPDIR="${XDG_CACHE_HOME:-$HOME/.cache}/appimage-run/$SHA256"
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#compatibility
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if [ -x "$APPDIR/squashfs-root" ]; then APPDIR="$APPDIR/squashfs-root"; fi
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if [ ! -x "$APPDIR" ]; then
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mkdir -p "$(dirname "$APPDIR")"
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unpack "$APPIMAGE" "$APPDIR"
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else echo "$(basename "$APPIMAGE")" installed in "$APPDIR"
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fi
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export PATH="$PATH:$PWD/usr/bin"
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}
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wrap() {
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# quite same in appimageTools
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export APPIMAGE_SILENT_INSTALL=1
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if [ -n "$APPIMAGE_DEBUG_EXEC" ]; then
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cd "$APPDIR" || true
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exec "$APPIMAGE_DEBUG_EXEC"
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fi
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exec "$APPDIR/AppRun" "$@"
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}
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usage() {
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cat <<EOF
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Usage: appimage-run [appimage-run options] <AppImage> [AppImage options]
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-h show this message
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-d debug mode
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-x <directory> : extract appimage in the directory then exit.
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-w <directory> : run uncompressed appimage directory (used in appimageTools)
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[AppImage options]: Options are passed on to the appimage.
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If you want to execute a custom command in the appimage's environment, set the APPIMAGE_DEBUG_EXEC environment variable.
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EOF
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exit 1
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}
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while getopts "x:w:dh" option; do
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case "${option}" in
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d) set -x
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;;
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x) # eXtract
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unpack_opt=true
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APPDIR=${OPTARG}
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;;
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w) # WrapAppImage
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export APPDIR=${OPTARG}
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wrap_opt=true
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;;
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h) usage
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;;
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*) usage
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;;
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esac
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done
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shift "$((OPTIND-1))"
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if [ -n "$wrap_opt" ] && [ -d "$APPDIR" ]; then
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wrap "$@"
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exit
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else
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APPIMAGE="$(realpath "$1")" || usage
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shift
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fi
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if [ -n "$unpack_opt" ] && [ -f "$APPIMAGE" ]; then
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unpack "$APPIMAGE" "$APPDIR"
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exit
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fi
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if [ -n "$apprun_opt" ] && [ -f "$APPIMAGE" ]; then
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apprun
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wrap "$@"
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exit
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fi
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