[Nix-dev] Using nix-shell in messy trees with symlinks and binary files

[Rok Garbas]

look at `builtins.filterSource` in nix manual (http://nixos.org/nix/manual)

On Tue, Feb 16, 2016 at 1:05 PM, Kosyrev Serge
<_deepfire at feelingofgreen.ru> wrote:
> Good day, folks!
>
> What I'm seeing is a rather disturbingly odd, context-depenent behavior of nix-shell:
>
> ,----
> | [deepfire at andromedae:~/src/foo]$ nix-shell default.nix
> | warning: dumping very large path (> 256 MiB); this may run out of memory
> | error: file ‘/home/deepfire/src/foo/generated/rootfs/chroot/dev/fuse’ has an unsupported type
> | (use ‘--show-trace’ to show detailed location information)
> |
> | [deepfire at andromedae:~/src/foo]$ mv default.nix scripts/
> |
> | [deepfire at andromedae:~/src/foo]$ nix-shell scripts/default.nix
> |
> | [nix-shell:~/src/foo]$
> `----
>
> The directory structure, indeed, has some oddities -- device files,
> symlink loops, this kind of stuff.
>
> Consideration that nix-shell tries to compute some.. hash.. out of it all,
> sends shivers down my spine.  That's a lot of stuff to hash through.
>
> If this theory is, indeed, correct, what would be the way to make
> nix-shell disregard certain paths from the equation?
>
> --
> с уважениeм / respectfully,
> Косырев Сергей
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-- 
Rok Garbas
http://www.garbas.si
rok at garbas.si