14812: Get defaults and config from arvados-server

[arvados.git] / lib / config / cmd.go

diff --git a/lib/config/cmd.go b/lib/config/cmd.go
index a41e4b0331548f977d69b3ce993795c51e28ea1d..b08ca0deca4dcd728b7e75678bbc88ffec1b4e9f 100644 (file)
--- a/lib/config/cmd.go
+++ b/lib/config/cmd.go
@@ -146,3 +146,34 @@ func (pl *plainLogger) Warnf(format string, args ...interface{}) {
        pl.used = true
        fmt.Fprintf(pl.w, format+"\n", args...)
 }
+
+var DumpDefaultsCommand defaultsCommand
+
+type defaultsCommand struct{}
+
+func (defaultsCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
+       var err error
+       defer func() {
+               if err != nil {
+                       fmt.Fprintf(stderr, "%s\n", err)
+               }
+       }()
+
+       var src map[string]interface{}
+       err = yaml.Unmarshal(DefaultYAML, &src)
+       if err != nil {
+               err = fmt.Errorf("loading default config data: %s", err)
+               return 1
+       }
+       removeSampleKeys(src)
+
+       out, err := yaml.Marshal(src)
+       if err != nil {
+               return 1
+       }
+       _, err = stdout.Write(out)
+       if err != nil {
+               return 1
+       }
+       return 0
+}