1. updated master to dora branch. 2. images are not operational

# Utility functions for various Xilinx specific recipes

# Returns a ':' seperated list of expanded '${BBPATH}/$path'

def get_additional_bbpath_filespath(path, d):

    board_extrapaths = []

    bbpath = d.getVar("BBPATH", True) or ""

    for i in bbpath.split(":"):

        board_extrapaths.append(os.path.join(i, path))

    if len(board_extrapaths):

        return ":".join(board_extrapaths) + ":"

    return ""

# Add a prefix or suffix to all paths in the list of paths

#   e.g. add 'file://' to all paths

def paths_affix(paths, suffix = "", prefix = ""):

    if paths:

        files=set()

        for path in paths.split():

            newpath = path

            if suffix and len(suffix) != 0:

                newpath = newpath + suffix

            if prefix and len(prefix) != 0:

                newpath = prefix + newpath

            files.add(newpath)

        if len(files) != 0:

            return ' '.join(files)

    return ''

# Expand all relative paths to absolute based on the WORKDIR location

def expand_workdir_paths(variable, d):

    workdir = d.getVar("WORKDIR", True)

    variable_value = d.getVar(variable, True) or ''

    if variable_value:

        files=set()

        for path in variable_value.split():

            if workdir:

                files.add(os.path.join(workdir, path))

            else:

                files.add(path)

        if len(files) != 0:

            return ' '.join(files)

    return ''

# Returns a space seperated list of all files which match the extension, joined

# with the dir path.

def expand_dir_basepaths_by_extension(variable, dir, extension, d):

    variable_value = d.getVar(variable, True) or ''

    if variable_value:

        files=set()

        for path in variable_value.split():

            if os.path.splitext(path)[1] == extension or extension == None:

                if dir:

                    files.add(os.path.join(dir, os.path.basename(path)))

                else:

                    files.add(os.path.basename(path))

        if len(files) != 0:

            return ' '.join(files)

    return ''