build_helper: destination file can't be up to date when not exists #46421
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Function "up_to_date" return incorrect result if mtime for all fetched sources is set to epoch time. Add existence check to function.
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @nikomatsakis (or someone else) soon. If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes. Please see the contribution instructions for more information. |
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build_helper: destination file can't be up to date when not exists Function "up_to_date" return incorrect result if mtime for all fetched sources is set to epoch time. Add existence check to function. This fix required for a [Guix](https://www.gnu.org/software/guix/) package because a Nix builder set mtime of all sources to epoch time.
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Function "up_to_date" return incorrect result if mtime for all fetched sources is set to epoch time. Add existence check to function.
This fix required for a Guix package because a Nix builder set mtime of all sources to epoch time.