vscode调试container（进行rocksdb调试）

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参考链接：

https://blog.csdn.net/qq_29809823/article/details/128445308#t5

https://blog.csdn.net/qq_29809823/article/details/121978762#t7

使用vscode中的插件dev containners->点击左侧的远程资源管理器打开运行rocksdb的容器配置以下文件即可

#命令行编译通过调试cpp为可执行文件，通过设置launch.json和f5进行debug
root@62db0822831f:/# find . -name "librocksdb*"
./usr/lib/x86_64-linux-gnu/librocksdb.so
./usr/lib/x86_64-linux-gnu/librocksdb.a
./usr/lib/x86_64-linux-gnu/librocksdb.so.8
./usr/lib/x86_64-linux-gnu/librocksdb.so.8.8.0
./home/baum/rocksdb_all/rocksdb/build/librocksdb.so
./home/baum/rocksdb_all/rocksdb/build/librocksdb.a
./home/baum/rocksdb_all/rocksdb/build/librocksdb.so.8
./home/baum/rocksdb_all/rocksdb/build/librocksdb.so.8.8.0
./rocks/rocksdb/build/librocksdb.so
./rocks/rocksdb/build/librocksdb.a
./rocks/rocksdb/build/librocksdb.so.8
./rocks/rocksdb/build/librocksdb.so.8.8.0

root@62db0822831f:/home/baum/rocksdb_all/rocksdb/test_util/test# g++ -g main.cpp -o example -std=c++17 -L/home/baum/rocksdb_all/rocksdb/build -lrocksdb
root@62db0822831f:/home/baum/rocksdb_all/rocksdb/test_util/test# ls
example  main.cpp

通过设置tasks.json来定义编译任务，通过ctrl+shift+B来运行默认的构建任务;配置launch.json文件指定如何启动和调试程序

//c_cpp_properties.json
{
    "configurations": [
        {
            "name": "Linux",
            "includePath": [
                "${workspaceFolder}/**",
                "/usr/include/rocksdb",  // 如果rocksdb的头文件位于此处，否则调整为实际的头文件路径
                "/home/baum/rocksdb_all/rocksdb/include"  // rocksdb源代码的头文件路径
            ],
            "defines": [],
            "compilerPath": "/usr/bin/g++",
            "cStandard": "c17",
            "cppStandard": "c++17",
            "intelliSenseMode": "gcc-x64"
        }
    ],
    "version": 4
}

//tasks.json
//task:g++ -g main.cpp -o example -std=c++17 -L/home/baum/rocksdb_all/rocksdb/build -lrocksdb
{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "build test cpp",
            "type": "shell",
            "command": "g++",
            "options": {
                "cwd": "${workspaceFolder}/rocksdb/test_util/test" //可执行文件的目录
            },
            "args":[
                "-g",
                "main.cpp",
                "-o",
                "example",
                "-std=c++17",
                "-L/home/baum/rocksdb_all/rocksdb/build",
                "-lrocksdb"
            ],
            "group":{
                "kind": "build",
                "isDefault": true
            }
        }
    ]
}

//launch.json
{
    // 使用 IntelliSense 了解相关属性。 
    // 悬停以查看现有属性的描述。
    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb) 启动",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/rocksdb/test_util/test/example", //可执行文件
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "为 gdb 启用整齐打印",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        }
    ]
}

//rocksdb测试代码，因为rocksdb没有客户端和服务器，所以没有办法gdb attach process_id
//https://rocksdb.org/docs/getting-started.html
//关于打开数据库
//main.cpp
#include <cassert>
#include "rocksdb/db.h"

int main(int argc, char* argv[]) {
  rocksdb::DB* db;
  rocksdb::Options options;
  options.create_if_missing = true;
  rocksdb::Status status =
      rocksdb::DB::Open(options, "./testdb", &db);
  assert(status.ok());

  return 0;
}

vscode比较同一项目的不同分支

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点击源代码管理->branches->选择main分支右键compare with working tree

则在commits可以看到

查看该项目是fork的哪个分支

#rocksdb-gpu
git log
commit 0a211b008b8ba82617a0d45ea5c7d7e1b0602734
Author: 
Date:   Mon Dec 10 17:53:00 2018 +0900

    Adds cuda module directory.

commit e196ba3956d6ef5bb064d880bcca873f9d35a56a
Author:
Date:   Mon Dec 10 17:46:29 2018 +0900

    Update README.md

commit f307479ba6979d5ea5d2175321aaa41ce4c18536
Author: 
Date:   Fri Dec 7 17:03:49 2018 -0800

    Enable checkpoint of read-only db (#4681)
    
    Summary:
    1. DBImplReadOnly::GetLiveFiles should not return NotSupported. Instead,
 it
       should call DBImpl::GetLiveFiles(flush_memtable=false).
    2. In DBImp::Recover, we should also recover the OPTIONS file name and/o
r
       number so that an immediate subsequent GetLiveFiles will get the corr
ect
       OPTIONS name.
    
    
    Differential Revision: D13069205
    
    Pulled By: riversand963
    
    fbshipit-source-id: 3e6a0174307d06db5a01feb099b306cea1f7f88a

#rocksdb
#在上一个代码块中确定了commits是f307479ba6979d5ea5d2175321aaa41ce4c18536，在原始仓库中找到包含该commit的分支
#以下列出的是所有包含该 commit 的本地分支
git branch --contains f307479ba6979d5ea5d2175321aaa41ce4c18536
output：
7.4.fb
main
#如果想查看远程仓库中包含该 commit 的分支，你可以使用
git fetch # 更新远程分支的信息
git branch -r --contains f307479ba6979d5ea5d2175321aaa41ce4c18536
output
  origin/6.0.fb
  origin/6.0.fb.myrocks
  origin/6.1.fb
  origin/6.1.fb.myrocks
  origin/6.1.fb.prod201905
  ......

请及的使用gitlens inspect还有git log，阿巴阿布