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moby--moby/api/client/logout.go

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package client
import (
"fmt"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
)
// CmdLogout logs a user out from a Docker registry.
//
// If no server is specified, the user will be logged out from the registry's index server.
//
// Usage: docker logout [SERVER]
func (cli *DockerCli) CmdLogout(args ...string) error {
cmd := Cli.Subcmd("logout", []string{"[SERVER]"}, Cli.DockerCommands["logout"].Description+".\nIf no server is specified, the default is defined by the daemon.", true)
cmd.Require(flag.Max, 1)
cmd.ParseFlags(args, true)
var serverAddress string
if len(cmd.Args()) > 0 {
serverAddress = cmd.Arg(0)
} else {
serverAddress = cli.electAuthServer()
}
// check if we're logged in based on the records in the config file
// which means it couldn't have user/pass cause they may be in the creds store
if _, ok := cli.configFile.AuthConfigs[serverAddress]; !ok {
fmt.Fprintf(cli.out, "Not logged in to %s\n", serverAddress)
return nil
}
fmt.Fprintf(cli.out, "Remove login credentials for %s\n", serverAddress)
if err := eraseCredentials(cli.configFile, serverAddress); err != nil {
fmt.Fprintf(cli.out, "WARNING: could not erase credentials: %v\n", err)
}
return nil
}