在WSL Ubuntu的VS Code中调试Bash脚本时断点不生效求助

在VS Code的WSL（Ubuntu-20.04）扩展环境中调试Bash脚本时，遇到断点无法触发的问题：脚本会直接运行完毕，完全不命中设置的断点。

已完成的配置 #

已安装所有必要扩展，并配置了bashdb调试器，launch.json内容如下：

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        
        {
            "type": "bashdb",
            "request": "launch",
            "name": "Bash-Debug (simplest configuration)",
            "program": "${file}",
            "showDebugOutput": true,
            "terminalKind": "integrated",
            "trace": true
        }
    ]
}

曾尝试将terminalKind改为debugConsole，问题依旧。

测试脚本 #

用于复现问题的测试脚本：

#!/usr/bin/env bash
export NICE_VAR=10
export ANOTHER_VAR=20

for i in {0..25..5}
do  
    export NICE_VAR=$((NICE_VAR+i)) # BREAKPOINT
    echo $NICE_VAR
done

for ((i=1;i<=25;i+=1))
do  
    export ANOTHER_VAR=$((ANOTHER_VAR+i)) # BREAKPOINT
    echo $ANOTHER_VAR
done

if [ $ANOTHER_VAR -gt $NICE_VAR ]
then  
    echo "ANOTHER bigger than nice" # BREAKPOINT
else  
    echo "Nice is bigger or equal"
fi

调试控制台关键输出 #

调试控制台显示已识别断点位置，但随后提示"No breakpoints have been set"，相关输出片段：

To client: {"seq":0,"type":"response","request_seq":1,"command":"initialize","success":true,"body":
{"supportsConditionalBreakpoints":true,"supportsConfigurationDoneRequest":false,"supportsEvaluateForHovers":
true,"supportsStepBack":false,"supportsSetVariable":false}}

##1 sourceFrom client: setBreakpoints({"source":{"name":"Debugging_test.sh","path":"../Debugging_test.sh"},
"lines":[7,13,19],"breakpoints":[{"line":7},{"line":13},{"line":19}],"sourceModified":false})

To client: {"seq":0,"type":"event","event":"output","body":{"category":"stdout","output":
"No breakpoints have been set.\n"}}

No breakpoints have been set.

To client: {"seq":0,"type":"response","request_seq":6,"command":"setBreakpoints","success":true,"body":
{"breakpoints":[{"verified":true,"line":null,"id":null},{"verified":true,"line":null,"id":null},{"verified":
true,"line":null,"id":null}]}}

From client: setExceptionBreakpoints({"filters":[]})

To client: {"seq":0,"type":"response","request_seq":7,"command":"setExceptionBreakpoints","success":true}

已尝试的无效方案 #

曾尝试过针对C++调试的解决方案，但不适用于Bash脚本场景，问题未解决。

解决建议 #

1. 检查bashdb版本兼容性
   执行bashdb --version查看WSL中bashdb版本，若版本过旧，更新至最新：

   sudo apt update && sudo apt install --upgrade bashdb
   

2. 修正路径映射问题
   在launch.json中添加cwd字段指定脚本所在目录，确保路径解析正确：

   "cwd": "${fileDirname}"
   

   同时避免脚本路径包含中文或特殊字符。

3. 替换Shell扩展语法
   bashdb对{0..25..5}这类扩展语法的断点支持存在兼容问题，将循环改写为显式列表形式后重试：

   for i in 0 5 10 15 20 25
   do  
       export NICE_VAR=$((NICE_VAR+i))
       echo $NICE_VAR
   done
   

4. 重置调试环境
   卸载并重装VS Code的bash-debug扩展，删除WSL中残留的旧配置文件后重新初始化。

5. 确认脚本执行权限
   给测试脚本添加执行权限：

   chmod +x Debugging_test.sh
   

内容的提问来源于stack exchange，提问作者Zaida