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Should we really open tempfile with truncate(false)? #1989

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szokeasaurusrex opened this issue Mar 25, 2024 · 1 comment · May be fixed by #2073
Open

Should we really open tempfile with truncate(false)? #1989

szokeasaurusrex opened this issue Mar 25, 2024 · 1 comment · May be fixed by #2073
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@szokeasaurusrex
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We had to add .truncate(false) to our tempfile opening code in #1988 to fix a new Clippy lint. .truncate(false) is equivalent to the previous behavior, but it seems like it would make more sense to use truncate(true). However, when I tried truncate(true), some tests failed.

Perhaps, we should be using truncate(true), and we in fact have a bug here.

@szokeasaurusrex
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After investigating, I determined that truncate(false) provides the desired behavior, after all. I will prepare a PR to add comments to document why this is the case.

szokeasaurusrex added a commit that referenced this issue May 29, 2024
In #1988, we added an explicit call to `truncate(false)` in our `TempFile` code to resolve a new Clippy lint. This call maintained the code's existing behavior, but [seemed like it may not have been the desired behavior](#1988 (comment)), so we opened #1989.

After investigating, we found that the `truncate(false)` call indeed provides the desired behavior.

Here, we add some comments to clarify why we use `truncate(false)` in our code.

Resolves #1989.
@szokeasaurusrex szokeasaurusrex linked a pull request May 29, 2024 that will close this issue
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