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Cleanup README for clippy-preview on stable

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With the 1.29 release, the `clippy-preview` component will be available
on stable which means we don't need nightly/beta anymore.
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Philipp Hansch 2018-09-11 20:29:00 +02:00
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README.md
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@ -45,7 +45,7 @@ subcommand.
#### Step 1: Install rustup
You can install [rustup](http://rustup.rs/) on supported platforms. This will help
us install clippy and its dependencies.
us install Clippy and its dependencies.
If you already have rustup installed, update to ensure you have the latest
rustup and compiler:
@ -54,26 +54,15 @@ rustup and compiler:
rustup update
```
#### Step 2: Install nightly toolchain
#### Step 2: Install Clippy
Rustup integration is still new, you will need a relatively new nightly (2018-07-15 or later).
To install Rust nightly with [rustup](https://rustup.rs/):
Once you have rustup and the latest stable release (at least Rust 1.29) installed, run the following command:
```terminal
rustup install nightly
rustup component add clippy-preview
```
#### Step 3: Install clippy
Once you have rustup and the nightly toolchain installed, run the following command:
```terminal
rustup component add clippy-preview --toolchain=nightly
```
Now you can run Clippy by invoking `cargo +nightly clippy`. If nightly is your
default toolchain in rustup, `cargo clippy` will work fine.
Now you can run Clippy by invoking `cargo clippy`.
### Running Clippy from the command line without installing it
@ -133,15 +122,6 @@ enable/disable Clippy lints until `tool_lints` are stable:
#![cfg_attr(feature = "cargo-clippy", allow(clippy_lint))]
```
## Updating rustc
Sometimes, rustc moves forward without Clippy catching up. Therefore updating
rustc may leave Clippy a non-functional state until we fix the resulting
breakage.
You can use the [rust-update](rust-update) script to update rustc only if
Clippy would also update correctly.
## License
Licensed under [MPL](https://www.mozilla.org/MPL/2.0/).