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fix: Treat empty TMPDIR as unset

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Fixes an instance of

    nix: src/libutil/util.cc:139: nix::Path nix::canonPath(PathView, bool): Assertion `path != ""' failed.

... which I've been getting in one of my shells for some reason.
I have yet to find out why TMPDIR was empty, but it's no reason for
Nix to break.
This commit is contained in:
Robert Hensing 2024-03-22 22:41:50 +01:00
parent a223280664
commit c3fb2aa1f9
4 changed files with 12 additions and 4 deletions
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4
src/libutil/file-system.hh
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@ -234,6 +234,10 @@ Path createTempDir(const Path & tmpRoot = "", const Path & prefix = "nix",
*/
std::pair<AutoCloseFD, Path> createTempFile(const Path & prefix = "nix");
/**
* Return `TMPDIR`, or the default temporary directory if unset or empty.
*/
Path defaultTempDir();
/**
* Used in various places.