iovfs

func From ¶

func From(fsys fs.FS, useCaseSensitiveFileNames bool) vfs.FS

From creates a new FS from an fs.FS.

For paths like `c:/foo/bar`, fsys will be used as though it's rooted at `/` and the path is `/c:/foo/bar`.

If the provided fs.FS implements RealpathFS, it will be used to implement the Realpath method. If the provided fs.FS implements WritableFS, it will be used to implement the WriteFile method.

From does not actually handle case-insensitivity; ensure the passed in fs.FS respects case-insensitive file names if needed. Consider using [vfstest.FromMap] for testing.