mirror of https://github.com/rust-lang/reference
Merge pull request #1474 from traviscross/TC/improve-readme
Add `rust-toolchain.toml` and revise README
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README.md
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README.md
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# The Rust Language Reference
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This document is the primary reference for the Rust programming language.
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This document is the primary reference for the Rust programming
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language.
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This document is not normative. It may include details that are specific
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to `rustc` itself, and should not be taken as a specification for the
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## Dependencies
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- rustc (the Rust compiler).
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- [mdbook](https://rust-lang.github.io/mdBook/) (use `cargo install mdbook` to install it).
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- rust nightly (you would be required to set your Rust version to the nightly version to make sure all tests pass)
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- Nightly Rust
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- [mdbook](https://rust-lang.github.io/mdBook/)
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## Build steps
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## Installing dependencies
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To build the project, follow the steps given below :
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First, ensure that you have a recent copy of the nightly Rust compiler
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installed, as this is needed in order to run the tests:
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Clone the project by downloading the ZIP from the [GitHub page](https://github.com/rust-lang/reference) or
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run the following command:
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```
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git clone https://github.com/rust-lang/reference
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```sh
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rustup toolchain install nightly
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```
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Change the directory to the downloaded repository:
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Now, ensure you have `mdbook` installed, as this is needed in order to
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build the Reference:
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```sh
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cargo install --locked mdbook
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```
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## Building
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To build the Reference, first clone the project:
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```sh
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git clone https://github.com/rust-lang/reference.git
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```
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(Alternatively, if you don't want to use `git`, [download][] a ZIP file
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of the project, extract it using your preferred tool, and rename the
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top-level directory to `reference`.)
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[download]: https://github.com/rust-lang/reference/archive/refs/heads/master.zip
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Now change your current directory to the working directory:
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```sh
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cd reference
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```
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To run the tests, you would need to set the Rust version to the nightly release. You can do this by executing the following command:
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To test all of the code examples in the Reference, run:
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```shell
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rustup override set nightly
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```
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This will set the nightly version only for your the current project.
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If you wish to set Rust nightly for all your projects, you can run the command:
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```shell
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rustup default nightly
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```
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Now, run the following command to test the code snippets to catch compilation errors:
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```shell
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```sh
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mdbook test
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```
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To generate a local instance of the book, run:
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To build the Reference locally (in `build/`) and open it in a web
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browser, run:
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```sh
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mdbook build
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mdbook build --open
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```
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The generated HTML will be in the `book` folder.
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[toolchain]
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channel = "nightly"
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