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121 lines
3.3 KiB
Bash
Executable File
121 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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# A simple loongarch64 => loong64 .deb converter to help traverse the worlds.
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#
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# Mingcong Bai <jeffbai@aosc.io>, 2024
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_display_usage() {
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printf "\
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Usage:
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loong64-it [PACKAGE1] [PACKAGE2] ...
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- PACKAGE{1..N}: Path to the old-world .deb package to convert.
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"
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}
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# Autobuild-like echo functions.
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abwarn() { echo -e "[\e[33mWARN\e[0m]: \e[1m$*\e[0m"; }
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aberr() { echo -e "[\e[31mERROR\e[0m]: \e[1m$*\e[0m"; exit 1; }
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abinfo() { echo -e "[\e[96mINFO\e[0m]: \e[1m$*\e[0m"; }
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abdbg() { echo -e "[\e[32mDEBUG\e[0m]: \e[1m$*\e[0m"; }
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_convert_loong64() {
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PKG_PATH=$(realpath $1)
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PKG_NAME=$(dpkg-deb -f "$PKG_PATH" Package)
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VERSION=$(dpkg-deb -f "$PKG_PATH" Version)
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BASEDIR=$(dirname $PKG_PATH)
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abinfo "Examining package information: $1 ..."
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dpkg -I "$PKG_PATH" || \
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aberr "Invalid dpkg package: control (metadata) archive not found: $?"
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CONTROL_EXT="$(ar t "$PKG_PATH" | grep control.tar* | cut -f3 -d'.')"
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case "${CONTROL_EXT}" in
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gz)
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TAR_COMP_FLAG="z"
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;;
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xz)
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TAR_COMP_FLAG="J"
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;;
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bz2)
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TAR_COMP_FLAG="j"
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;;
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"")
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TAR_COMP_FLAG=""
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;;
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*)
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aberr "Invalid control archive extension ${CONTROL_EXT}!"
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;;
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esac
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abinfo "Unpacking: $1 ..."
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cd $(mktemp -d) || \
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aberr "Failed to create temporary directory to unpack $1: $?."
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DEBDIR="$(pwd)"
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ar xv "$PKG_PATH" || \
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aberr "Failed to unpack $1: $?."
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abinfo "Unpacking metadata archive: $1 ..."
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mkdir "$DEBDIR"/metadata || \
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aberr "Failed to create temporary directory for extracting the metdata archive from $1: $?."
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tar -C "$DEBDIR"/metadata -xvf control.tar."${CONTROL_EXT}" || \
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aberr "Failed to unpack metadata archive from $1: $?."
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abinfo "Converting dpkg Architecture key: $1 ..."
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#if ! egrep '^Architecture: loongarch64$' "$DEBDIR"/metadata/control; then
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# aberr "Failed to detect a \"loongarch64\" architecture signature in control file - this is not a valid old-world LoongArch package!"
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#fi
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sed -e 's|^Architecture: amd64$|Architecture: all|g' \
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-i "$DEBDIR"/metadata/control
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abinfo "Building metadata archive (control.tar.${CONTROL_EXT}): $1 ..."
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cd "$DEBDIR"/metadata
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tar cvf${TAR_COMP_FLAG} "$DEBDIR"/control.tar."${CONTROL_EXT}" * || \
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aberr "Failed to build metadata archive (control.tar.${CONTROL_EXT}) for $1: $?."
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cd "$DEBDIR"
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abinfo "Rebuilding dpkg package $1"
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ar rv "$PKG_PATH" control.tar.${CONTROL_EXT} || \
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aberr "Failed to rebuild dpkg package $1: $?."
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#abinfo "Cleaning up: $1 ..."
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#rm -r "$DEBDIR"
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mv $1 ${BASEDIR}/${PKG_NAME}_${VERSION}_loong64.deb
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abinfo """Your requested package:
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$1
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Has been successfully converted as a loong64 package and renamed as ${PKG_NAME}_${VERSION}_loong64.deb
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However, you may still need to install libLoL for old-world applications to
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work properly. Please refer to the libLoL home page:
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https://liblol.aosc.io
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For details on how to install and configure libLoL.
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"""
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}
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# Display usage info if `-h' or `--help' is specified.
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if [[ "$1" == "-h" || "$1" == "--help" ]]; then
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_display_usage
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exit 0
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fi
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# Display usage info with directions if no option is specified.
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if [ -z "$1" ]; then
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abwarn "Please specify package(s) to convert.\n"
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_display_usage
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exit 1
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fi
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# Record working directory.
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SRCDIR="$(pwd)"
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# Rebuilding all requested packages.
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for i in "$@"; do
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_convert_loong64 $i
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done
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