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Auto merge of #3578 - matthiaskrgr:rustc_tools_util, r=oli-obk

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rustc_tools_util: changes in preparation of release on crates.io

I want to release my [cargo-cache](https://github.com/matthiaskrgr/cargo-cache) crate on crates.io however it depends on rustc_tools_util, thus I need to publish rustc_tools_util on crates.io first.

This PR expands the Cargo.toml and adds a readme.
This commit is contained in:
bors 2018-12-27 12:27:40 +00:00
commit 44ffda7e76
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rustc_tools_util/Cargo.toml
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name = "rustc_tools_util" name = "rustc_tools_util"
version = "0.1.0" version = "0.1.0"
authors = ["Matthias Krüger <matthias.krueger@famsik.de>"] authors = ["Matthias Krüger <matthias.krueger@famsik.de>"]
description = "small helper to generate version information for git packages"
repository = "https://github.com/rust-lang/rust-clippy"
readme = "README.md"
license = "MIT/Apache-2.0"
keywords = ["rustc", "tool", "git", "version", "hash"]
categories = ["development-tools"]
edition = "2018" edition = "2018"
[dependencies] [dependencies]

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rustc_tools_util/README.md Normal file
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# rustc_tools_util
A small tool to help you generate version information
for packages installed from a git repo
## Usage
Add a `build.rs` file to your repo and list it in `Cargo.toml`
````
build = "build.rs"
````
List rustc_tools_util as regular AND build dependency.
````
[dependencies]
rustc_tools_util = "0.1"
[build-dependencies]
rustc_tools_util = "0.1"
````
In `build.rs`, generate the data in your `main()`
````rust
fn main() {
println!(
"cargo:rustc-env=GIT_HASH={}",
rustc_tools_util::get_commit_hash().unwrap_or_default()
);
println!(
"cargo:rustc-env=COMMIT_DATE={}",
rustc_tools_util::get_commit_date().unwrap_or_default()
);
}
````
Use the version information in your main.rs
````rust
use rustc_tools_util::*;
fn show_version() {
let version_info = rustc_tools_util::get_version_info!();
println!("{}", version_info);
}
````
This gives the following output in clippy:
`clippy 0.0.212 (a416c5e 2018-12-14)`
## License
Copyright 2014-2018 The Rust Project Developers
Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
<LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
option. All files in the project carrying such notice may not be
copied, modified, or distributed except according to those terms.