The unpac monorepo manager self-hosting as a monorepo using unpac
posix: spawn_unix: ensure spawn_unix wraps its call to `openat`
Addresses the first issue described in #808 .
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lib_eio_posix/process.ml
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lib_eio_posix/process.ml
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| None -> Fmt.invalid_arg "cwd is not an OS directory!"
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| Some dirfd ->
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Switch.run ~name:"spawn_unix" @@ fun launch_sw ->
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let cwd = Low_level.openat ~sw:launch_sw ~mode:0 dirfd path Low_level.Open_flags.(rdonly + directory) in
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let cwd = Err.run (fun () ->
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let flags = Low_level.Open_flags.(rdonly + directory) in
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Low_level.openat ~sw:launch_sw ~mode:0 dirfd path flags) () in
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fn (Low_level.Process.Fork_action.fchdir cwd :: actions)
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in
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with_actions cwd @@ fun actions ->