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|
//go:build darwin
// +build darwin
package main
import (
"fmt"
"io"
"io/fs"
"os"
"time"
"github.com/spf13/cobra"
)
const (
trigger = "GO\n"
fail = "NO"
success = "OK"
)
var serviceCmd = &cobra.Command{
Use: "service",
Short: "services requests",
Long: "services requests",
PreRun: silentUsage,
Run: serviceRun,
Hidden: true,
}
func init() {
rootCmd.AddCommand(serviceCmd)
}
func serviceRun(cmd *cobra.Command, args []string) {
info, err := os.Stdin.Stat()
if err != nil || info.Mode()&fs.ModeSocket == 0 {
fmt.Fprintln(os.Stderr, "This is an internal command that is not intended for standard terminal usage")
os.Exit(1)
}
os.Exit(service())
}
func service() int {
defer os.Stdout.Close()
defer os.Stdin.Close()
defer os.Stderr.Close()
if len(os.Args) < 3 {
fmt.Print(fail)
return 1
}
target := os.Args[2]
request := make(chan bool)
go func() {
buf := make([]byte, 3)
_, err := io.ReadFull(os.Stdin, buf)
request <- err == nil && string(buf) == trigger
}()
valid := false
select {
case valid = <-request:
case <-time.After(5 * time.Second):
}
if !valid {
fmt.Println(fail)
return 2
}
err := os.Remove(dockerSock)
if err == nil || os.IsNotExist(err) {
err = os.Symlink(target, dockerSock)
}
if err != nil {
fmt.Print(fail)
return 3
}
fmt.Print(success)
return 0
}
|
