Alex Ameen 153ee460c5 primop: add readFileType, optimize readDir ... Allows checking directory entry type of a single file/directory. This was added to optimize the use of `builtins.readDir` on some filesystems and operating systems which cannot detect this information using POSIX's `readdir`. Previously `builtins.readDir` would eagerly use system calls to lookup these filetypes using other interfaces; this change makes these operations lazy in the attribute values for each file with application of `builtins.readFileType`.		2023-01-22 13:45:02 -06:00
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manual	primop: add readFileType, optimize readDir	2023-01-22 13:45:02 -06:00