open-consul/vendor/github.com/posener/complete/cmd/install/zsh.go

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package install
import "fmt"
// (un)install in zsh
// basically adds/remove from .zshrc:
//
// autoload -U +X bashcompinit && bashcompinit"
// complete -C </path/to/completion/command> <command>
type zsh struct {
rc string
}
func (z zsh) IsInstalled(cmd, bin string) bool {
completeCmd := z.cmd(cmd, bin)
return lineInFile(z.rc, completeCmd)
}
func (z zsh) Install(cmd, bin string) error {
if z.IsInstalled(cmd, bin) {
return fmt.Errorf("already installed in %s", z.rc)
}
completeCmd := z.cmd(cmd, bin)
bashCompInit := "autoload -U +X bashcompinit && bashcompinit"
if !lineInFile(z.rc, bashCompInit) {
completeCmd = bashCompInit + "\n" + completeCmd
}
return appendToFile(z.rc, completeCmd)
}
func (z zsh) Uninstall(cmd, bin string) error {
if !z.IsInstalled(cmd, bin) {
return fmt.Errorf("does not installed in %s", z.rc)
}
completeCmd := z.cmd(cmd, bin)
return removeFromFile(z.rc, completeCmd)
}
func (zsh) cmd(cmd, bin string) string {
return fmt.Sprintf("complete -o nospace -C %s %s", bin, cmd)
}