testscript: remove temp dirs when finishing once again #290
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rogpeppe
approved these changes
Feb 24, 2025
testscript/exe.go
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| exit := m.Run() | ||
| // The [os.Exit] below prevents defers from running, so we must clean up here. | ||
| // The defer above is still useful in case we fail before we get to this point. | ||
| cleanup() |
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Alternatively (and arguably slightly cleaner) you could factor all the Main code into a separate function (e.g. main1) that returns int, and change Main to just do os.Exit(main1(...))
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done; PTAL again as I ended up only factoring out part of the Main code, given that the other branch has no control over whether the user's command calls os.Exit.
The recent transition from RunMain to Main meant that we started calling os.Exit directly when Main finished. However, we failed to spot that os.Exit would make our earlier deferred cleanup of the temporary directory not run at all. Spotted because my /tmp started getting filled up after a few hours of development, and I found a suspiciously large number of testscript-looking directories.
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