dde-application-manager/misc/hooks.d/debFix.sh

#!/bin/bash

# SPDX-FileCopyrightText: 2024 UnionTech Software Technology Co., Ltd.
#
# SPDX-License-Identifier: LGPL-3.0-or-later

# This hook script wraps the startup of all applications within this script, 
# in order to fix the issue of some applications not being able to start without shebang in their startup scripts


# ===== Log =====
# log.info xxx
# log.warn xxx
# log.info xxx
# log.debug xxx

function log.color_output() {
    local color=$1
    shift 1

    echo >&2 -e "\033[${color}m$@\033[0m"
    return 0
}

# Log is named without prefix "utils." for convenience
# Usage: log.log <level> ...content
function log.log() {
    if [[ $# < 2 ]]; then
        return -1
    fi

    local level=$1
    shift 1

    case $level in
    error) log.color_output "0;31" "[ERROR] $@" ;;
    warn) log.color_output "1;33" "[WARN] $@" ;;
    info) log.color_output "1;37" "[INFO] $@" ;;
    debug) log.color_output "1;30" "[DEBUG] $@" ;;
    esac

    return 0
}

function log.error() { log.log "error" "$@"; }
function log.warn() { log.log "warn" $@; }
function log.info() { log.log "info" $@; }
function log.debug() { log.log "debug" $@; }


function check_file_no_shebang(){
local file_type=$(file -b "${1}")
# 检查文件类型是否为纯文本文件、是否具有可执行权限，并且不是脚本文件
if [[ ($file_type == *"ASCII text"* || $file_type == *"Unicode text"*) && -x "$exec_cmd_origin_path" && "$file_type" != *"script"* ]]; then
true
else
false
fi

}

function check_file_is_python(){
if file -b "${1}" | grep -q "Python script" ;then
true
else
false
fi
}

function choose_python(){
pythonInterpreter=$(command -v python3 || command -v python)
        		if [ -z "${pythonInterpreter}" ]; then
            			log.error "Python interpreter not found."
            			exit 1
        		fi
		log.debug "Automatically add interpreter ${pythonInterpreter} to launch app."
}

exec_cmd_origin_path=$(realpath $1)

if [[ -e ${exec_cmd_origin_path} ]]; then

    
##### 1. Check if the file is a script and is excutable and lack of shebang.(If not excutable, we should not let it run.)
##### 1.1 If python, then use python, else use bash.
##### 2. If do not need to fix,just try to run.

    if  check_file_no_shebang "${exec_cmd_origin_path}" ; then
	log.debug "The executable is a script without shebang. Trying to fix..."

    	if  check_file_is_python "${exec_cmd_origin_path}"  ; then
        	choose_python

       		exec ${pythonInterpreter} "$@"
        else
    		exec /bin/bash "$@"
    	fi

    else
    exec "$@"
    fi
    
    
else
log.error "File not found."
exit 1
fi