index : iCE40/yosys	master
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path: root/techlibs/common/cellhelp.py

	Commit message (Expand)	Author	Age	Files	Lines
*	Progress on cell help messages	Clifford Wolf	2015-10-17	1	-3/+12
*	Added first help messages for cell types	Clifford Wolf	2015-10-14	1	-0/+25

generated by cgit v1.2.3 (git 2.25.1) at 2025-05-05 07:05:44 +0000

import os.path
import importlib
import inspect


class Data:

    def __init__(self, name):
        self.name = name
        m = importlib.import_module(name)
        dirname = os.path.dirname(inspect.getsourcefile(m))
        self.dirname = os.path.abspath(dirname)

    def push(self, subpath):
        """
            Change the data object to a path relative to the module.
        """
        dirname = os.path.normpath(os.path.join(self.dirname, subpath))
        ret = Data(self.name)
        ret.dirname = dirname
        return ret

    def path(self, path):
        """
            Returns a path to the package data housed at 'path' under this
            module.Path can be a path to a file, or to a directory.

            This function will raise ValueError if the path does not exist.
        """
        fullpath = os.path.normpath(os.path.join(self.dirname, path))
        if not os.path.exists(fullpath):
            raise ValueError("dataPath: %s does not exist." % fullpath)
        return fullpath


pkg_data = Data(__name__).push("..")