I'm looking into what sorts of information can be package into a compiled crate file, and I'm wondering if there's some resource out there on the format used for the crate file? I've looked but haven't found anything.

Is there something called "crate file"? I think there are only package bundles that get uploaded to crates.io , and binaries that are machine language or other output formats asked for from the compiler. Are you talking about any of these, or something else?

I just played around with cargo package and a dummy project and it looks like a *.crate file is just a regular tarball of your source code without anything ignored by your VCS. You could probably reverse engineer the exact format by looking at cargo's source code and with a little experimenting. It…

If anyone is interested, here's the relevant piece of code in Cargo: https://github.com/rust-lang/cargo/blob/534ce68621ce4feec0b7e8627cfd3b077d4f3900/src/cargo/ops/cargo_package.rs#L185 . But yeah the layout of .crate file is unspecified.

Awesome, thanks folks! This is exactly what I need.

[image] Michael-F-Bryan: I just played around with cargo package and a dummy project and it looks like a *.crate file is just a regular tarball of your source code without anything ignored by your VCS. can confirm, true fact :ballot_box_with_check:

Where to learn about crate file format?

help

carols10cents June 23, 2017, 6:49pm 7

can confirm, true fact

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Where to learn about crate file format?

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