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@bignaux
Created March 6, 2020 23:22
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#!@shell@
if [ ! -z "$DEBUG" ] ; then
env
set -x
fi
export PATH=@path@
# src : AppImage
# dest : let's unpack() create the directory
unpack() {
src=$1
out=$2
echo $src $out
# https://github.com/AppImage/libappimage/blob/ca8d4b53bed5cbc0f3d0398e30806e0d3adeaaab/src/libappimage/utils/MagicBytesChecker.cpp#L45-L63
eval "$(r2 "$src" -nn -Nqc "p8j 3 @ 8" |
jq -r '{appimageSignature: (.[:-1]|implode), appimageType: .[-1]}|
@sh "appimageSignature=\(.appimageSignature) appimageType=\(.appimageType)"')"
# check AppImage signature
if [[ "$appimageSignature" != "AI" ]]; then
echo "Not an appimage."
exit -1
fi
case "$appimageType" in
1)
mkdir "$out"
bsdtar -x -C "$out" -f "$src"
;;
2) # This method avoid issues with non executable appimages,
# non-native packer, packer patching and squashfs-root destination prefix.
# multiarch offset one-liner using same method as AppImage
# see https://gist.github.com/probonopd/a490ba3401b5ef7b881d5e603fa20c93
offset=$(r2 "$src" -nn -Nqc "pfj.elf_header @ 0" |\
jq 'map({(.name): .value}) | add | .shoff + (.shnum * .shentsize)')
unsquashfs -q -d "$out" -o "$offset" "$src"
chmod go-w "$out"
;;
# 3) get ready, https://github.com/TheAssassin/type3-runtime
*) echo Unsupported AppImage Type: "$appimageType"
exit
;;
esac
echo AppImage Type: "$appimageType"
}
apprun() {
eval "$(rahash2 "$APPIMAGE" -j | jq -r '.[] | @sh "SHA256=\(.hash)"')"
echo sha256 = \"$SHA256\"\;
SQUASHFS_ROOT="${XDG_CACHE_HOME:-$HOME/.cache}/appimage-run/$SHA256"
mkdir -p "$SQUASHFS_ROOT"
# could we remove squashfs-root?
export APPDIR="$SQUASHFS_ROOT/squashfs-root"
echo $(basename "$APPIMAGE") installed in "$APPDIR"
if [ ! -x "$APPDIR" ]; then
cd "$SQUASHFS_ROOT"
unpack "$APPIMAGE" "$APPDIR"
fi
wrap
}
wrap() {
# quite same in appimageTools
export APPIMAGE_SILENT_INSTALL=1
cd "$APPDIR"
export PATH="$PATH:$PWD/usr/bin"
if [ -n "$APPIMAGE_DEBUG_EXEC" ]; then
exec "$APPIMAGE_DEBUG_EXEC"
fi
# AppRun escape strategy
binary="./AppRun"
#if [ rg Exec=""]
if [ -n "$(file "$binary" | rg "Bourne-Again")" ]; then
eval $(rg BIN= "$binary" --no-line-number)
if [ -f $BIN ]; then
binary=$BIN
fi
fi
# look for linked link if elf
if [ -n "$(file "$binary" | rg "ELF")" ]; then
#strace $binary
rarun2 preload=/nix/store/7a68nclbq638gp7jdi50p52wfvgifmpq-system-path/lib/libfuse.so.2 program=$binary
fi
}
usage() {
echo "Usage: appimage-run [appimage-run options] <AppImage> [AppImage options]";
echo
echo 'Options are passed on to the appimage.'
echo "If you want to execute a custom command in the appimage's environment, set the APPIMAGE_DEBUG_EXEC environment variable."
exit 1
}
while getopts ":a:d:xrw" option; do
case "${option}" in
a) #AppImage file
# why realpath?
APPIMAGE="$(realpath "${OPTARG}")"
;;
d) #appimage Directory
APPDIR=${OPTARG}
;;
x) # eXtract
unpack_opt=true
;;
r) # appimage-Run
apprun_opt=true
;;
w) # WrapAppImage
wrap_opt=true
;;
*)
usage
;;
esac
done
shift $((OPTIND-1))
if [[ $unpack_opt = true ]] && [[ -f "$APPIMAGE" ]]; then
unpack "$APPIMAGE" "$APPDIR"
exit
fi
if [[ $apprun_opt = true ]] && [[ -f "$APPIMAGE" ]]; then
apprun
fi
if [[ $wrap_opt = true ]] && [[ -d "$APPDIR" ]]; then
wrap
fi
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