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Auto debloat unused pub items from dependencies. (infosec.pub)

submitted 1 month ago* (last edited 4 weeks ago) by [email protected] to c/[email protected]

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I shaved off 10 MiB from my binary in 2 hours!

I made a program using Macroquad, then I built it in release mode, the binary was 63 MiB in size.

So I used cargo vendor to have a better look at Macroquad and one of its dependencies, glam.

I then started to delete code, like, lots and lots of code(about 30_000 lines of code); none of it affected my main project, some of it became 'dead_code' just by removing the pub keyword.

The result is that my project was unaffected and the binary went down to 52 MiB.

Is there a way to automate removal of unneeded elements from dependencies? This is potentially huge.

EDIT: I FIGURED IT OUT!!!

My mistake was measuring the size of "target/release", I discovered that that folder contains many "unnecessary" files, like "deps", which greatly bloat the folder'r size, the actual size of my binary is 864K.

I am so relieved.

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[–] [email protected] 4 points 4 weeks ago (1 children)

I'm glad you figured it out.

I don't know what is it with new rustaceans and binary size, but many of them seem to be incessant on wasting time uselessly optimizing it, usually without actually understanding what they're doing, without gaining any relevant benefit, and possibly even causing relevant harm (e.g. degrading run-time performance for no good reason).

[–] [email protected] 1 points 1 week ago

Shipping a 50 MiB game about a moving square would make me feel ashamed, regardless of language.

No my honor's being tarnished noooo