配置环境

CentOS7.8
默认的 gcc，cmake比较老了，需要安装新的
安装gcc：

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sudo yum install centos-release-scl
sudo yum install devtoolset-11-gcc*
scl enable devtoolset-11 bash
which gcc
gcc --version

安装cmake

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wget https://cmake.org/files/v3.15/cmake-3.15.7.tar.gz
./bootstrap --prefix=usr
gmake
make install
cmake --version

安装 vscode
配置远程 ssh环境
如果远程机器不能连外网，需要从vscode官网，下载对应的插件 我装了这么几个插件：

  • ms-vscode.cmake-tools-1.13.25.vsix
  • [email protected]
  • ms-vscode.cpptools-extension-pack-1.3.0.vsix
  • ms-vscode.cpptools-themes-2.0.0.vsix
  • twxs.cmake-0.0.17.vsix

编译MySQL

下载源码包：

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https://ftp.ntu.edu.tw/MySQL/Downloads/MySQL-8.0/mysql-boost-8.0.28.tar.gz

新建 .vscode/settings.json，因为mysql引入了boost，需要让vscode找到这个框架

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{
    "cmake.buildBeforeRun": true,
    "cmake.buildDirectory": "${workspaceFolder}/cmake-build-debug/build",
    "cmake.configureSettings": {
        "WITH_DEBUG": "1",
        "CMAKE_INSTALL_PREFIX": "${workspaceFolder}/cmake-build-debug",
        "MYSQL_DATADIR": "${workspaceFolder}/cmake-build-debug/data",
        "SYSCONFDIR": "${workspaceFolder}/cmake-build-debug/etc",
        "MYSQL_TCP_PORT": "3307",
        "MYSQL_UNIX_ADDR": "${workspaceFolder}/cmake-build-debug/data/mysql-debug.sock",
        "WITH_BOOST": "${workspaceFolder}/boost",
        "DOWNLOAD_BOOST": "0",
        "DOWNLOAD_BOOST_TIMEOUT": "600"
    }
}

点下面的 build 就可以了，大概需要20-30分钟吧，根据机器性能而定
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编译时可能会遇到一些错误：

Curses library not found. Please install appropriate package
yum -y install ncurses-devel 解决

Please install the appropriate openssl developer package
yum -y install openssl-devel 解决

cmake执行时可能会报这样的警告，可以通过，执行安装下就行了

[cmake] Cannot find development libraries. You need to install the required
[cmake] packages:
[cmake]
[cmake] Debian/Ubuntu: apt install libudev-dev
[cmake] RedHat/Fedora/Oracle Linux: yum install libudev-devel
[cmake] SuSE: zypper install libudev-deve

编译后的 mysql在这里：

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/data1/mysql/mysql-8.0.28/cmake-build-debug/build/runtime_output_directory

里面有一堆二进制文件，其中就包括mysqld
在 runtime_output_directory 目录下新建一个 my.cnf 文件

[mysqld]
port=3307
socket=mysql.sock
innodb_file_per_table=1
log_bin = on
server-id = 10086
binlog_format = ROW

初始化

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mysqld --defaults-file=etc/my.cnf --initialize-insecure

初始化后的数据目录在这里：

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/data1/mysql/mysql-8.0.28/cmake-build-debug/build/data

配置.vscode/launch.json，将mysqld交给 vscode 启动

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{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "cppdbg",
            "request": "launch",
            "name": "Debug mysqld",
            "program": "${workspaceFolder}/cmake-build-debug/build/runtime_output_directory/mysqld",
            "args": [
                "--defaults-file=${workspaceFolder}/cmake-build-debug/build/runtime_output_directory/etc/my.cnf", 
                "--debug",
                "--user=root"
            ],
            "cwd": "${workspaceFolder}"
        },
        {
            "type": "cppdbg",
            "request": "launch",
            "name": "Debug mysql",
            "program": "${workspaceFolder}/cmake-build-debug/build/client/mysql",
            "args": [
                "-uroot",
                "-P3307",
                "-h127.0.0.1"
            ],
            "cwd": "${workspaceFolder}"
        }
    ]
}

启动

点击debug按钮直接启动就行了，启动完后的堆栈信息如下：
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服务端的连接方式，貌似远程用 mysql 工具连接还有问题

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./mysql -uroot -S ../data/mysql.sock

输入 version后的结果：

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SELECT version();
+--------------+
| version()         |
+--------------+
| 8.0.28-debug |
+--------------+
1 row in set (0.00 sec)

参考