Amir Alawi 4cbf74bd9b
fix std.fs.Dir.makePath silent failure (#16878)
std.fs.dir.makePath silently failed if one of the items in the path already exists. For example:

cwd.makePath("foo/bar/baz")
Silently failing is OK if "bar" is already a directory - this is the intended use of makePath (like mkdir -p). But if bar is a file then the subdirectory baz cannot be created - the end result is that makePath doesn't do anything which should be a detectable error because baz is never created.

The existing code had a TODO comment that did not specifically cover this error, but the solution for this silent failure also accomplishes the TODO task - the code now stats "foo" and returns an appropriate error. The new code also handles potential race condition if "bar" is deleted/permissions changed/etc in between the initial makeDir and statFile calls.
2024-01-08 15:58:14 -05:00
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