官网 https://www.msys2.org/
官方文档 https://www.msys2.org/docs/terminals/
github https://github.com/msys2/msys2-installer/releases/
这个msys2更新还挺活跃的，最新是2023.5.26版本, 软件本体只有84M，nice
双击安装。安装过程基本上就是在解压，安装过程信息如下：到最后Updating trust database…的时候可能会卡住，此时进度50%，等着，或者尝试翻墙
正在准备安装…
正在准备解压组件......
正在解压组件......
正在提取“20230526msys64.7z”
已完成
正在安装组件 MSYS2
Copying skeleton files.
These files are for the users to personalise their msys2 experience.
They will never be overwritten nor automatically updated.
'./.bashrc' -> '/home/username2/.bashrc'
'./.bash_logout' -> '/home/username2/.bash_logout'
'./.bash_profile' -> '/home/username2/.bash_profile'
'./.profile' -> '/home/username2/.profile'
'C:\windows\system32\drivers\etc\hosts' -> '/etc/hosts'
'C:\windows\system32\drivers\etc\protocol' -> '/etc/protocols'
'C:\windows\system32\drivers\etc\services' -> '/etc/services'
'C:\windows\system32\drivers\etc\networks' -> '/etc/networks'
==> Generating pacman master key. This may take some time.
==> Updating trust database...
==> Appending keys from msys2.gpg...
==> Locally signing trusted keys in keyring...
-> Locally signed 5 keys.
==> Importing owner trust values...
==> Disabling revoked keys in keyring...
-> Disabled 4 keys.
==> Updating trust database...
[H[2J[3J
已完成
编写维护工具。
安装已完成!
安装之后有好几个终端环境，推荐使用的、默认打开的是ucrt64.exe，我这里也用这个，任务栏是这样的：
配置如下（这里刚开始，用Notepad++等编辑器编辑就行）：
/etc/nsswitch.conf
db_home: windows cygwin desc
/etc/pacman.d/下的db_home: windows cygwin desc各个mirrorlist文件，没必要都修改，修改你需要用的环境即可。比如我用ucrt64则只需修改: mirrorlist.msys, mirrorlist.ucrt64
配置文件 /etc/pacman.conf
修改：翻到最下面，把不需要的环境注释掉：
# [clangarm64]
# Include = /etc/pacman.d/mirrorlist.mingw
#
# [mingw32]
# Include = /etc/pacman.d/mirrorlist.mingw
#
# [mingw64]
# Include = /etc/pacman.d/mirrorlist.mingw
[ucrt64]
Include = /etc/pacman.d/mirrorlist.mingw
# [clang32]
# Include = /etc/pacman.d/mirrorlist.mingw
#
# [clang64]
# Include = /etc/pacman.d/mirrorlist.mingw
[msys]
Include = /etc/pacman.d/mirrorlist.msys
pacman -Syyu，因为已经换源了，速度会挺快
会自动刚更新msys软件本体，和安装过的软件包。如果不想更新某个软件包，可以在配置文件设置。
pacman -S 软件包名 进行安装pacman -Rs 软件包名
pacman -Ss 包名关键词，比如vim
pacman -Ss vim 下图就搜索到了两个，前面粉红色的是环境tag，优先安装ucrt64的（尤其是g++，cmake啥的编译工具链最好用ucrt64），但我不想用neovim就选下面的msys那个vim了，红线就是完整包名，安装即可pacman -S vim 
安装编译工具链：pacman -S mingw-w64-ucrt-x86_64-toolchain
cd /ucrt64/binln -s mingw32-make.exe make.exe安装cmake: pacman -S mingw-w64-ucrt-x86_64-cmake
安装git: pacman -S git
安装其他需要的软件
/ucrt64/bin，/usr/bin/下，把这两个加到系统PATH即可（注意顺序），这样你在非msys2终端环境中也能使用这里安装的软件了，比如rm, vim啥的MSYS2_PATH_TYPE，值为inherit
msys2_shell.cmd启动，并添加-full-path参数官方doc https://www.msys2.org/docs/terminals/
修改windows terminal的配置json, 注意修改路径为你的安装位置
// This makes UCRT64 the default shell
"defaultProfile": "{17da3cac-b318-431e-8a3e-7fcdefe6d114}",
"profiles": {
"list":
[
// ...
{
"guid": "{17da3cac-b318-431e-8a3e-7fcdefe6d114}",
"name": "UCRT64 / MSYS2",
"commandline": "C:/msys64/msys2_shell.cmd -defterm -here -no-start -ucrt64",
"startingDirectory": "C:/msys64/home/%USERNAME%",
"icon": "C:/msys64/ucrt64.ico",
"font":
{
"face": "Lucida Console",
"size": 9
}
},
{
"guid": "{71160544-14d8-4194-af25-d05feeac7233}",
"name": "MSYS / MSYS2",
"commandline": "C:/msys64/msys2_shell.cmd -defterm -here -no-start -msys",
"startingDirectory": "C:/msys64/home/%USERNAME%",
"icon": "C:/msys64/msys2.ico",
"font":
{
"face": "Lucida Console",
"size": 9
}
},
// ...
]
}
官方文档 https://www.msys2.org/docs/ides-editors/
如下内容添加到vscode的settings.json, 注意修改路径为你的安装位置
{
"terminal.integrated.profiles.windows": {
"MSYS2 UCRT": {
"path": "cmd.exe",
"args": [
"/c",
"C:\\msys64\\msys2_shell.cmd -defterm -here -no-start -ucrt64"
]
}
}
}