Add flag to create parent directories in files cp command

Closes ipfs#8289

core/commands/files.go

@@ -356,8 +356,14 @@ GC'ed.
  cmds.StringArg("source", true, false, "Source IPFS or MFS path to copy."),
  cmds.StringArg("dest", true, false, "Destination within MFS."),
  },
+ Options: []cmds.Option{
+ cmds.BoolOption(filesParentsOptionName, "p", "Make parent directories as needed."),
+ },
  Run: func(req *cmds.Request, res cmds.ResponseEmitter, env cmds.Environment) error {
+ mkParents, _ := req.Options[filesParentsOptionName].(bool)
  nd, err := cmdenv.GetNode(env)
+
+ prefix, err := getPrefixNew(req)
  if err != nil {
  return err
  }
@@ -389,6 +395,13 @@ GC'ed.
  return fmt.Errorf("cp: cannot get node from path %s: %s", src, err)
  }
 
+ if mkParents {
+ err := ensureContainingDirectoryExists(nd.FilesRoot, dst, prefix)
+ if err != nil {
+ return err
+ }
+ }
+
  err = mfs.PutNode(nd.FilesRoot, dst, node)
  if err != nil {
  return fmt.Errorf("cp: cannot put node in path %s: %s", dst, err)