dashboard: buildlet client, server, and gomote enhancements
- get tarballs out of buildlets
- gomote can pass arguments to buildlet's exec handler
- buildlet's exec handler can run system-level commands
- hard-code GOROOT_BOOTSTRAP to be "go1.4" under the workdir
- adjust MTU size on GCE
etc
Change-Id: I73e18b7a5e395a889f5ee93ba9850d331ffb7812
Reviewed-on: https://go-review.googlesource.com/3052
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/buildlet/buildletclient.go b/buildlet/buildletclient.go
index ef9c0a2..53b2c6a 100644
--- a/buildlet/buildletclient.go
+++ b/buildlet/buildletclient.go
@@ -102,12 +102,38 @@
return c.doOK(req)
}
+// GetTar returns a .tar.gz stream of the given directory, relative to the buildlet's work dir.
+// The provided dir may be empty to get everything.
+func (c *Client) GetTar(dir string) (tgz io.ReadCloser, err error) {
+ req, err := http.NewRequest("GET", c.URL()+"/tgz?dir="+url.QueryEscape(dir), nil)
+ if err != nil {
+ return nil, err
+ }
+ res, err := c.do(req)
+ if err != nil {
+ return nil, err
+ }
+ if res.StatusCode != http.StatusOK {
+ slurp, _ := ioutil.ReadAll(io.LimitReader(res.Body, 4<<10))
+ res.Body.Close()
+ return nil, fmt.Errorf("%v; body: %s", res.Status, slurp)
+ }
+ return res.Body, nil
+}
+
// ExecOpts are options for a remote command invocation.
type ExecOpts struct {
// Output is the output of stdout and stderr.
// If nil, the output is discarded.
Output io.Writer
+ // Args are the arguments to pass to the cmd given to Client.Exec.
+ Args []string
+
+ // SystemLevel controls whether the command is run outside of
+ // the buildlet's environment.
+ SystemLevel bool
+
// OnStartExec is an optional hook that runs after the 200 OK
// response from the buildlet, but before the output begins
// writing to Output.
@@ -122,8 +148,14 @@
// seen to completition. If execErr is non-nil, the remoteErr is
// meaningless.
func (c *Client) Exec(cmd string, opts ExecOpts) (remoteErr, execErr error) {
+ var mode string
+ if opts.SystemLevel {
+ mode = "sys"
+ }
form := url.Values{
- "cmd": {cmd},
+ "cmd": {cmd},
+ "mode": {mode},
+ "cmdArg": opts.Args,
}
req, err := http.NewRequest("POST", c.URL()+"/exec", strings.NewReader(form.Encode()))
if err != nil {
