When copying a config module, make sure the full path for src and dst
files don't match, and also check the inode in case we resolved a
different path to the same file.
Make a note about the unsafe usage of reusing a tempDir path.
Using url.Parse to parse an absolute file path on Windows yields
a URL type where the Path element is prefixed by a slash.
For example, parsing "file:///C:/Users/user" gives a URL type
with Path:"/C:/Users/user".
According to golang.org/issue/6027, the parsing is correct as is.
The leading slash on the Path must be eliminated before any file
operations.
This commit introduces a urlParse function which wraps the url.Parse
functionality and removes the leading slash in Path for absolute file
paths on Windows.
Fixes config/module test failures on Windows.
James Bardin