// Add the given file while respecting the params.
func (params *adder) addFile(file files.File) (*dag.Node, error) {
// Check if file is hidden
if fileIsHidden := files.IsHidden(file); fileIsHidden && !params.hidden {
log.Debugf("%s is hidden, skipping", file.FileName())
return nil, &hiddenFileError{file.FileName()}
}
// Check if "file" is actually a directory
if file.IsDirectory() {
return params.addDir(file)
}
if s, ok := file.(*files.Symlink); ok {
sdata, err := ft.SymlinkData(s.Target)
if err != nil {
return nil, err
}
dagnode := &dag.Node{Data: sdata}
_, err = params.node.DAG.Add(dagnode)
if err != nil {
return nil, err
}
err = params.addNode(dagnode, s.FileName())
return dagnode, err
}
// if the progress flag was specified, wrap the file so that we can send
// progress updates to the client (over the output channel)
var reader io.Reader = file
if params.progress {
reader = &progressReader{file: file, out: params.out}
}
dagnode, err := add(params.node, reader, params.trickle, params.chunker)
if err != nil {
return nil, err
}
// patch it into the root
log.Infof("adding file: %s", file.FileName())
err = params.addNode(dagnode, file.FileName())
return dagnode, err
}