Archlinux pacman set the fastest mirror source

Examples

cpm -h rust cpm is short of =>china pacman mirror cpm -h || -help => shows help about the cli cpm -n || -new => fetch arch mirror and set fatest pacman mirror cpm -w || -where => shows the .cpm.toml file path cpm => get config from local .cpm.toml file and set fatest pacman mirror