Confusing TMPDIR behavior #158

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opened 2024-03-19 02:14:52 +00:00 by lunaphied · 1 comment

lunaphied commented

2024-03-19 02:14:52 +00:00

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Confusingly, the value of TMPDIR used when nix build/nix-build is invoked seems to affect which temporary directory is used for the builds, rather than always using the daemon service's TMPDIR environment variable.

This isn't ideal as it (doesn't seem to) match my memory of how later versions of Nix handle this and it's likely desirable to specify this globally to force temporary build files into directories specifically meant for that usage.

Whatever is happening here, it requires better documentation at the very least, as Nix's existing documentation around how TMPDIR handling works is very minimal and not much aid.

Confusingly, the value of `TMPDIR` used when `nix build`/`nix-build` is invoked seems to affect which temporary directory is used for the builds, rather than always using the daemon service's `TMPDIR` environment variable. This isn't ideal as it (doesn't seem to) match my memory of how later versions of Nix handle this and it's likely desirable to specify this globally to force temporary build files into directories specifically meant for that usage. Whatever is happening here, it requires better documentation at the very least, as Nix's existing documentation around how TMPDIR handling works is very minimal and not much aid.

lunaphied added the

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puck was assigned by lunaphied

2024-03-19 02:14:52 +00:00

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lunaphied commented

2024-07-07 19:49:33 +00:00

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I believe this confusing behavior was a mistake on my part, though I'm not sure what led me to believe that this behavior was occurring as I didn't have a reproducer. For now I'm closing this but if we find a reproducer than it can be reopened.

lunaphied closed this issue

2024-07-07 19:49:34 +00:00

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Reference: lix-project/lix#158

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