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always add but hide experimental cmds and flags

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Signed-off-by: Victor Vieux <vieux@docker.com>

update cobra and use Tags

Signed-off-by: Victor Vieux <vieux@docker.com>

allow client to talk to an older server

Signed-off-by: Victor Vieux <vieux@docker.com>
This commit is contained in:
Victor Vieux
2016-11-08 04:55:27 -08:00
parent 3f7264473d
commit 4f63bfb619
12 changed files with 81 additions and 17 deletions
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ping.go
+20 -9
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@@ -1,19 +1,30 @@
package client
import "golang.org/x/net/context"
import (
"fmt"
// Ping pings the server and return the value of the "Docker-Experimental" header
func (cli *Client) Ping(ctx context.Context) (bool, error) {
serverResp, err := cli.get(ctx, "/_ping", nil, nil)
"github.com/docker/docker/api/types"
"golang.org/x/net/context"
)
// Ping pings the server and return the value of the "Docker-Experimental" & "API-Version" headers
func (cli *Client) Ping(ctx context.Context) (types.Ping, error) {
var ping types.Ping
req, err := cli.buildRequest("GET", fmt.Sprintf("%s/_ping", cli.basePath), nil, nil)
if err != nil {
return false, err
return ping, err
}
serverResp, err := cli.doRequest(ctx, req)
if err != nil {
return ping, err
}
defer ensureReaderClosed(serverResp)
exp := serverResp.header.Get("Docker-Experimental")
if exp != "true" {
return false, nil
ping.APIVersion = serverResp.header.Get("API-Version")
if serverResp.header.Get("Docker-Experimental") == "true" {
ping.Experimental = true
}
return true, nil
return ping, nil
}