Created
March 2, 2022 18:43
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Bash implementation of the appimage-builder AppRun
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| #!/bin/bash | |
| export ORIGIN="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )" | |
| PRINTENV_BIN=$(which printenv) | |
| set_bundle_env() { | |
| eval "echo SETTING_ENV: $NAME $VALUE" | |
| NAME="$1" | |
| VALUE="$2" | |
| STARTUP_VAL="$VALUE" | |
| ORIGINAL_VAL="$($PRINTENV_BIN $NAME)" | |
| eval "export APPRUN_ORIGINAL_$NAME=$ORIGINAL_VAL" | |
| eval "export APPRUN_STARTUP_$NAME=$STARTUP_VAL" | |
| eval "export $NAME=$VALUE" | |
| } | |
| read_ld_so_version() { | |
| VERSION=$(strings "$1" | grep -Eo "ld-[0-9]{1,4}\.[0-9]{1,4}.so" | cut -f 2 -d- | rev | cut -f 2- -d . | rev ) | |
| echo "$VERSION" | |
| } | |
| format_exported_path() { | |
| EXPORTED_PATH="/tmp/appimage-$APPIMAGE_UUID-$(basename $1)" | |
| echo "$EXPORTED_PATH" | |
| } | |
| input="$ORIGIN/.env" | |
| while IFS= read -r line | |
| do | |
| NAME="${line%=*}" | |
| VALUE="${line#*=}" | |
| case $NAME in | |
| EXEC_PATH | EXEC_ARGS | APPDIR_LIBRARY_PATH | APPDIR_LIBC_VERSION | LIBC_LIBRARY_PATH | SYSTEM_INTERP | EXPORTED_BINARIES) | |
| eval "$line" | |
| ;; | |
| APPDIR | ORIGIN | APPIMAGE_UUID) | |
| set_bundle_env "$NAME" "$VALUE" | |
| ;; | |
| esac | |
| done < "$input" | |
| echo "" | |
| echo --- Exporting Binaries --- | |
| readarray -d : -t strarr <<< "$EXPORTED_BINARIES" | |
| for (( n=0; n < ${#strarr[*]}; n++)) | |
| do | |
| ORIG_PATH="${strarr[n]}" | |
| EXPORTED_PATH="$(format_exported_path $ORIG_PATH)" | |
| cp -v $ORIG_PATH $EXPORTED_PATH | |
| done | |
| echo "" | |
| echo --- Setting Runtime --- | |
| INTERPRETER_PATH="${SYSTEM_INTERP%;*}" | |
| LD_SO_VERSION=$(read_ld_so_version "$INTERPRETER_PATH") | |
| echo SYSTEM_INTERPRETER version: $LD_SO_VERSION path: "$INTERPRETER_PATH" | |
| BUNDLE_INTERPRETER_PATH="$APPDIR/opt/libc/${SYSTEM_INTERP%;*}" | |
| BUNDLE_LD_SO_VERSION=$(read_ld_so_version "$BUNDLE_INTERPRETER_PATH") | |
| echo BUNDLE_INTERPRETER version: $BUNDLE_LD_SO_VERSION path: "$BUNDLE_INTERPRETER_PATH" | |
| MAJOR_VERSION=$(printf "$BUNDLE_LD_SO_VERSION\n$LD_SO_VERSION\n" | sort -V | tail -1) | |
| echo MAJOR_VERSION: $MAJOR_VERSION | |
| EXPORTED_LD_SO_PATH="$(format_exported_path $BUNDLE_INTERPRETER_PATH)" | |
| if [ "$MAJOR_VERSION" == "$BUNDLE_LD_SO_VERSION" ]; then | |
| echo "" | |
| echo " ## USING BUNDLE RUNTIME ##" | |
| cp $BUNDLE_INTERPRETER_PATH $EXPORTED_LD_SO_PATH | |
| set_bundle_env "LD_LIBRARY_PATH" "$LIBC_LIBRARY_PATH:$APPDIR_LIBRARY_PATH" | |
| else | |
| echo "" | |
| echo " ## USING SYSTEM RUNTIME ##" | |
| cp $INTERPRETER_PATH $EXPORTED_LD_SO_PATH | |
| set_bundle_env "LD_LIBRARY_PATH" "$APPDIR_LIBRARY_PATH" | |
| fi | |
| while IFS= read -r line | |
| do | |
| NAME="${line%=*}" | |
| VALUE="${line#*=}" | |
| case $NAME in | |
| APPDIR_LIBRARY_PATH | APPDIR_LIBC_VERSION | LIBC_LIBRARY_PATH | SYSTEM_INTERP | EXPORTED_BINARIES ) | |
| unset $NAME | |
| ;; | |
| EXEC_PATH | EXEC_ARGS | APPDIR | ORIGIN ) | |
| ;; | |
| *) | |
| set_bundle_env "$NAME" "$VALUE" | |
| ;; | |
| esac | |
| done < "$input" | |
| echo "" | |
| echo --- Launching Application --- | |
| EXEC_LINE="exec $EXEC_PATH $EXEC_ARGS $@" | |
| echo "$EXEC_LINE" | |
| eval "$EXEC_LINE" |
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Bash alternative for https://github.com/AppImageCrafters/AppRun