dirOpenFileWtf16: Disallow opening directories when requesting write permissions

Dir.readFile/readFileAlloc: take advantage of `.allow_directory = false` on Windows

Fix sizing of buffer/reservation size for dirReadWindows

std.debug: fix simple_panic

update all incremental tests to new std API

std: consolidate all instances of std.Io.Threaded into a singleton

fix compilation of incr-check

update the init templates to new std API

compiler: fix test-unit compilation failures

std.Io: implement directory reading for WASI

compiler: update calls to realpath

fix "hello world"

std.Io.Threaded: reinstate fchmodat fallback

std.Io.Threaded: remove handling of ECANCELED

std: rename other Dir "make" functions to "create"

std: rename makeDir to createDir for consistency with createFile

std.Io.Threaded: don't assume dirents are aligned

don't skip test for closed issue

std.fs.test: don't try to test nonexistent API

std.Io.Threaded: fix NetBSD compilation

std.Io.Threaded: fix fchmodat on linux with libc

std.Io.Dir.Reader: fix min_buffer_len on 32-bit linux

std: fix compilation errors on FreeBSD

std: fix compilation targeting WASI

std.debug: fix printLineFromFile

std.Io.Threaded: fix splat buffer calculations

std: fix test "max file name component lengths"

std: fix Io.Dir.min_buffer_len on Linux

std.fs.test: fix rebase conflicts

std: Enough fixes to get things compiling on Windows

windows: Remove BadPathName from error set of GetFinalPathNameByHandle

all comments are notes, and use doc comments where possible

os.windows: Add comment explaining why we don't need a separate EX definition for RENAME_INFORMATION

fs tests: Remove references to readLinkW which no longer exists

SelfInfo.Windows: a few fixes for std.Io

std.Progress.start: handle cancelation from isTty

std.process: Fix executableDirPath functions

testFilenameLimits: Fix collision with dir and filename

std.Io: introduce path_only to File.OpenFlags

std.Io.Threaded: allow length-0 file writes

std: fix "open smoke test" by passing allow_directory option

std.Io.Threaded: fix dirDeleteDir when not empty

std.Io.Threaded: implement dirHardLink

std: update remaining unit tests for std.Io API changes

std.dynamic_library: use a global static single threaded Io

std: add support for realpath on file handle

std.posix: make nlink_t on unsupported systems u0

std: Update/fix some usages/implementations of std.Io APIs

Test Dir.Reader.min_buffer_len via "max file name component lengths" test

std.Io.Dir.CopyFileOptions: rename override_permissions

std.Io.Dir.renameAbsolute: consistent parameter order

std.os.linux.IoUring: update for new fs API

std: move some tests from posix to fs

std.Io: add unimplemented hard link API to File and Dir

std.Io.Threaded: fix compilation errors on posix

Implement dirReadWindows

File.OpenFlags: Add `allow_directory` and default it to true

compiler: fix build from source on macOS

compiler: fix compilation when linking libc

compiler: fix build failures from std.Io-fs

fix more fallout from locking stderr

std: rework locking stderr

std.Io: fix dir iteration on macOS

fix build runner compilation errors on macOS

std.c.utimensat: add const

compiler: fix most compilation errors from std.fs changes

link.MappedFile: update statx usage

std.Io.Threaded: update call to statx

std.os.linux: move statx docs to proper location

update lockStderrWriter sites

std.process.cleanExit: take an Io parameter

update uses of std.debug.lockStdErr

link: update to new file system APIs

std.Io.Dir: improve realPath documentation

update occurences of std.fs.openDirAbsolute

update occurences of setEndPos to setLength

compiler: update various code to new fs API

std: update fchmodat tests

std.tar: update fs API calls to take io argument

std.Io.Dir: add setFilePermissions and setFileOwner

std.Build.Step.Run: restore Color.inherit logic

std.Io: implement dir reading for BSDs

std.Io.Dir: fix walking

std.Io: implement dirRead for Linux

std: update tty config references in the build system

std: save terminal escape stripping for later

std: finish implementing futexWait with timer

std.Io: add ResetEvent based on futexes

std: rework TTY detection and printing

std: WIP: debug-level stderr writing

std.debug: fix printLineFromFile

build_runner compiling again

std.Progress: use a global static Io instance

std.heap.DebugAllocator: never detect TTY config

fix a handful of compilation errors related to std.fs migration

update makeDir() sites to specify permissions

update std.process.Child.run occurences to use io

tests: close() -> close(io)

test: std.fs.File -> std.Io.File

update all readFileAlloc() to accept Io instance