add Cargo.lock

[marti1125]

Generated by Cargo

[arcresu]

Thanks! Could you explain why this file needs to be ignored? If as the name suggests this is something like ruby's Gemfile.lock then it might not be a good idea to ignore it.

[marti1125]

the reason is after run $ cargo build
it will generate automatic Cargo.lock with this content:

[root]
name = "hello_world"
version = "0.0.1"

[arcresu]

Ok, but I assume that this isn't a completely arbitrary file. What is it intended to do?

[marti1125]

this can help :D
rust-lang/cargo#315

[arcresu]

From the documentation linked to from the PR you mentioned, it seems that you definitely do want to check this file in unless you're working on a library. I think maybe a better change would be to add the rule commented out with a note to uncomment it if you're developing a library.

[shiftkey]

@marti1125 unfortunately this isn't mergeable currently, and there are some questions outstanding which we'd like to clarify before merging 😢

I need to clean up stale pull requests at some stage, and will close this out if I don't hear anything before Friday 26th February.

[shiftkey]

Nevermind, this has already been incorporated: https://github.com/github/gitignore/blob/master/Rust.gitignore#L13-L15

[marti1125]

ok :D 👍