cmd/uplinkng: mkdir config file folder

If the directory doesn't exist, then the first run in a non-migration
setting will error because it cannot create the config file. This
change creates the directory.

Change-Id: I439159c00047e9ae20e139318dad5a047c853253

cmd/uplinkng/external_config.go

@@ -5,6 +5,7 @@ package main
 
 import (
 	"os"
+	"path/filepath"
 	"sort"
 	"strings"
 
@@ -72,7 +73,14 @@ func (ex *external) SaveConfig(values map[string]string) error {
 func (ex *external) saveConfig(entries []ini.Entry) error {
 	// TODO(jeff): write it atomically
 
-	newFh, err := os.Create(ex.ConfigFile())
+	path := ex.ConfigFile()
+	dir := filepath.Dir(path)
+
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return errs.Wrap(err)
+	}
+
+	newFh, err := os.Create(path)
 	if err != nil {
 		return errs.Wrap(err)
 	}

cmd/uplinkng/main.go

@@ -48,7 +48,7 @@ func commands(cmds clingy.Commands, ex ulext.External) {
 	cmds.New("share", "Shares restricted accesses to objects", newCmdShare(ex))
 	cmds.New("mb", "Create a new bucket", newCmdMb(ex))
 	cmds.New("rb", "Remove a bucket bucket", newCmdRb(ex))
-	cmds.New("cp", "Copies files or objects into or out of tardigrade", newCmdCp(ex))
+	cmds.New("cp", "Copies files or objects into or out of storj", newCmdCp(ex))
 	cmds.New("ls", "Lists buckets, prefixes, or objects", newCmdLs(ex))
 	cmds.New("rm", "Remove an object", newCmdRm(ex))
 	cmds.Group("meta", "Object metadata related commands", func() {