Say we have two paths:
c:\foo\bar\baz
and c:\foo\bar
Is there any package/method that will help me determine if one is a subdirectory of another? I am looking at a cross-platform option.
You could try and use path.filepath.Rel():
func Rel(basepath, targpath string) (string, error)
Rel
returns a relative path that is lexically equivalent totargpath
when joined tobasepath
with an intervening separator.
That is,Join(basepath, Rel(basepath, targpath))
is equivalent totargpath
itself
That means Rel("c:\foo\bar", "c:\foo\bar\baz")
should be baz
, meaning a subpath completely included in c:\foo\bar\baz
, and without any '../
'.
The same would apply for unix paths.
That would make c:\foo\bar\baz
a subdirectory of c:\foo\bar
.
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