Benchmark can't be properly run on other machine about criterion HOT 9 CLOSED

This is not a bug. You need .cabal/share/<your compiler>/criterion-<version>/templates too.

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I think this issue should be re-opened. The bench executable (which wraps criterion in a command-line executable) is running into this same problem:

Gabriella439/bench#12

I would like to be able to distribute a standalone executable, but the baked-in runtime reference to the template file makes the --output option fail when the executable is distributed to another machine that doesn't have criterion installed

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Hm. I think I also share @osa1's opinion that this isn't a bug—or at the very least, the issue lies in Cabal, not criterion.

As you've noted in Gabriella439/bench#12 (comment), criterion uses Cabal's data-files feature to bundle several large files used for criterion's HTML reporting. This means that one cannot simply copy a criterion binary from machine to machine and expect it to work, as the appropriate data-files must also be present on the target machine.

For whatever reason, it seems that brew is not distributing the data-files correctly, leading to the mess in Gabriella439/bench#12. Alas, I cannot offer any advice on how one might fix that, since I know nothing of how brew works internally.

(There are extreme measures one can take to eliminate the use of data-files entirely, such as by embedding the files directly into source code using the file-embed library. But that would massively increase binary sizes—and likely compilation times—so as a result, that's an avenue I'm reluctant to pursue.)

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One way forward here is to adopt the approach that the hyphenation and pandoc take: use file-embed to embed the data-files into the binary when a flag is enabled (pandoc calls this embed_data_files). This would add some complexity, but perhaps it's unavoidable for now, as I'll admit that I can't find a general solution to the data-files problem after doing some searching.

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See #169 for an attempt at implementing the idea in #45 (comment).

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@Gabriel439, can you confirm if the new -fembed-data-files flag works for bench's purposes?

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@RyanGlScott: Yeah, will do. Give me a day or two to test this

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@RyanGlScott: bench users confirmed that the new -fembed-data-files successfully produces a relocatable bench executable: Gabriella439/bench#12 (comment)

Thanks a lot for all of your help! 🙂

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Awesome! I've uploaded criterion-1.2.5.0 to Hackage with these changes.

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