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readme: add tmp dir hint to Contributing section #985

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merged 3 commits into from
Mar 14, 2017
Merged

readme: add tmp dir hint to Contributing section #985

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readme: add tmp dir hint to Contributing section
durka Mar 14, 2017
177b604
vars need to be exported
durka Mar 14, 2017
ece79d8
more nuanced contributing hint
durka Mar 14, 2017
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14 changes: 14 additions & 0 deletions README.md
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Expand Up @@ -585,6 +585,20 @@ at your option.
4. Push to the branch: `git push origin my-new-feature`
5. Submit a pull request :D

For developing on `rustup` itself, you may want to install into a temporary
directory, with a series of commands similar to this:

```bash
$ cargo build
$ mkdir home
$ RUSTUP_HOME=home CARGO_HOME=home target/debug/rustup-init --no-modify-path -y
```

You can then try out `rustup` with your changes by running `home/bin/rustup`, without
affecting any existing installation. Remember to keep those two environment variables
set when running your compiled `rustup-init` or the toolchains it installs, but _unset_
when rebuilding `rustup` itself.

Unless you explicitly state otherwise, any contribution intentionally
submitted for inclusion in the work by you, as defined in the
Apache-2.0 license, shall be dual licensed as above, without any
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