Initial commit

vendor/github.com/hyperhq/hypercli/api/client/save.go

@@ -0,0 +1,42 @@
+package client
+
+import (
+	"errors"
+	"io"
+
+	"golang.org/x/net/context"
+
+	Cli "github.com/hyperhq/hypercli/cli"
+	flag "github.com/hyperhq/hypercli/pkg/mflag"
+)
+
+// CmdSave saves one or more images to a tar archive.
+//
+// The tar archive is written to STDOUT by default, or written to a file.
+//
+// Usage: docker save [OPTIONS] IMAGE [IMAGE...]
+func (cli *DockerCli) Save(args ...string) error {
+	cmd := Cli.Subcmd("save", []string{"IMAGE [IMAGE...]"}, Cli.DockerCommands["save"].Description+" (streamed to STDOUT by default)", true)
+	outfile := cmd.String([]string{"o", "-output"}, "", "Write to a file, instead of STDOUT")
+	cmd.Require(flag.Min, 1)
+
+	cmd.ParseFlags(args, true)
+
+	if *outfile == "" && cli.isTerminalOut {
+		return errors.New("Cowardly refusing to save to a terminal. Use the -o flag or redirect.")
+	}
+
+	responseBody, err := cli.client.ImageSave(context.Background(), cmd.Args())
+	if err != nil {
+		return err
+	}
+	defer responseBody.Close()
+
+	if *outfile == "" {
+		_, err := io.Copy(cli.out, responseBody)
+		return err
+	}
+
+	return copyToFile(*outfile, responseBody)
+
+}