# MSYS2

## CMD启动

```bash
set MSYSTEM=MSYS & c:\msys64\usr\bin\bash --login

set PATH=%PATH%;C:\msys64\usr\bin
等同于写入环境变量Path

set MSYSTEM=MINGW32 & c:\msys64\usr\bin\bash --login

set MSYSTEM=MINGW64 & c:\msys64\usr\bin\bash --login
```



## pacman 使用

```bash
pacman -Syu #更新MSYS2软件列表数据库
pacman -Su #升级软件包 
pacman -Ss #查找软件
pacman -S  #安装软件
pacman -Sl #列出支持软件
pacman -Ql #列出软件包内容

# 列出所有已安装的包
pacman -Qe

# 查看已安装包的信息
pacman -Qi <package-name>

#安装
pacman -S 软件名 #安装软件。也可以同时安装多个包，只需以空格分隔包名即可。
pacman -S --needed 软件名1 软件名2 #安装软件，但不重新安装已经是最新的软件。
pacman -Sy 软件名 #安装软件前，先从远程仓库下载软件包数据库(数据库即所有软件列表)。
pacman -Sv 软件名 #在显示一些操作信息后执行安装。
pacman -Sw 软件名 #只下载软件包，不安装。

#更新
pacman -Sy #从服务器下载新的软件包数据库（实际上就是下载远程仓库最新软件列表到本地）。
pacman -Su #升级所有已安装的软件包。
pacman -Syu #结合上面两个操作
#在msys2中 pacman -Syu后需要重启一下msys2(关掉shell重新打开即可)

#卸载
pacman -R 软件名 #该命令将只删除包，保留其全部已经安装的依赖关系
pacman -Rv 软件名 #删除软件，并显示详细的信息
pacman -Rs 软件名 #删除软件，同时删除本机上只有该软件依赖的软件。
pacman -Rsc 软件名 #删除软件，并删除所有依赖这个软件的程序，慎用
pacman -Ru 软件名 #删除软件,同时删除不再被任何软件所需要的依赖

# 删除包但保留配置文件
sudo pacman -R <package-name>

# 删除包及其依赖（无其他包依赖时）
sudo pacman -Rs <package-name>

# 彻底删除（含配置文件）
sudo pacman -Rns <package-name>

#清理
pacman -Sc #清理已删除的包文件，从缓存目录（ /var/cache/pacman/pkg/）
pacman -Scc #清理所有的缓存文件
```

## 镜像源配置

```bash
找到目录C:\msys64\etc\pacman.d

mirrorlist.mingw32 修改为
##
## 32-bit Mingw-w64 repository mirrorlist
##

## Primary
## msys2.org
Server = https://mirrors.tuna.tsinghua.edu.cn/msys2/mingw/i686/
Server = http://mirrors.ustc.edu.cn/msys2/mingw/i686/
Server = http://mirror.bit.edu.cn/msys2/mingw/i686/

mirrorlist.mingw64 修改为
##
## 64-bit Mingw-w64 repository mirrorlist
##

## Primary
## msys2.org
Server = https://mirrors.tuna.tsinghua.edu.cn/msys2/mingw/x86_64/
Server = http://mirrors.ustc.edu.cn/msys2/mingw/x86_64/
Server = http://mirror.bit.edu.cn/msys2/mingw/x86_64/

mirrorlist.msys修改为
##
## MSYS2 repository mirrorlist
##

## Primary
## msys2.org
Server = https://mirrors.tuna.tsinghua.edu.cn/msys2/msys/$arch/
Server = http://mirrors.ustc.edu.cn/msys2/msys/$arch/
Server = http://mirror.bit.edu.cn/msys2/msys/$arch/
```

```bash
#中科大源(https://mirrors.ustc.edu.cn/help/msys2.html)

cp /etc/pacman.d/mirrorlist.mingw32 /etc/pacman.d/mirrorlist.mingw32.bak
sed '/^## msys2.org/a\Server = https://mirrors.ustc.edu.cn/msys2/mingw/i686/' /etc/pacman.d/mirrorlist.mingw32 > /etc/pacman.d/mirrorlist.mingw32.t
mv /etc/pacman.d/mirrorlist.mingw32.t /etc/pacman.d/mirrorlist.mingw32

cp /etc/pacman.d/mirrorlist.mingw64 /etc/pacman.d/mirrorlist.mingw64.bak
sed '/^## msys2.org/a\Server = https://mirrors.ustc.edu.cn/msys2/mingw/x86_64/' /etc/pacman.d/mirrorlist.mingw64 > /etc/pacman.d/mirrorlist.mingw64.t
mv /etc/pacman.d/mirrorlist.mingw64.t /etc/pacman.d/mirrorlist.mingw64

cp /etc/pacman.d/mirrorlist.msys /etc/pacman.d/mirrorlist.msys.bak
sed '/^## msys2.org/a\Server = https://mirrors.ustc.edu.cn/msys2/msys/$arch/' /etc/pacman.d/mirrorlist.msys > /etc/pacman.d/mirrorlist.msys.t
mv /etc/pacman.d/mirrorlist.msys.t /etc/pacman.d/mirrorlist.msys 
pacman -Sy

#mirrorlist.mingw32文件
## 2-bit Mingw-w64 repository mirrorlist
## Primary
Server = http://mirrors.ustc.edu.cn/msys2/mingw/i686/
Server = http://repo.msys2.org/mingw/i686
Server = http://downloads.sourceforge.net/project/msys2/REPOS/MINGW/i686
Server = http://www2.futureware.at/~nickoe/msys2-mirror/i686/

#mirrorlist.mingw64文件
## 64-bit Mingw-w64 repository mirrorlist
## Primary
Server = http://mirrors.ustc.edu.cn/msys2/mingw/x86_64/
Server = http://repo.msys2.org/mingw/x86_64
Server = http://downloads.sourceforge.net/project/msys2/REPOS/MINGW/x86_64
Server = http://www2.futureware.at/~nickoe/msys2-mirror/x86_64/
Server = http://mirror.bit.edu.cn/msys2/REPOS/

#mirrorlist.msys文件
## MSYS2 repository mirrorlist
## Primary
Server = http://mirrors.ustc.edu.cn/msys2/msys/$arch/
Server = http://repo.msys2.org/msys/$arch
Server = http://downloads.sourceforge.net/project/msys2/REPOS/MSYS2/$arch
Server = http://www2.futureware.at/~nickoe/msys2-mirror/msys/$arch/
```

## 安装必要工具

```bash
#查询gcc编译器
pacman -Ss gcc
#安装
pacman -S msys/gcc

==========================================
#查询make
pacman -Ss make
#安装make
pacman -S msys/make

==========================================
#安装Clion编译工具链
pacman -S mingw-w64-x86_64-cmake
pacman -S mingw-w64-x86_64-extra-cmake-modules
pacman -S mingw-w64-x86_64-make
pacman -S mingw-w64-x86_64-gdb
pacman -S mingw-w64-x86_64-toolchain

==========================================
#安装zsh工具, 我还是选择bash工具，zsh就是花里胡哨的bash
pacman -S zsh

#如果没有git工具, 也可以安装git
pacman -S git
```


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