[bug#42179] [PATCH] gnu: Add racer.

[John Soo]

Hi Guix,

I have been writing a lot of Rust recently. Racer provides
autocompletion. It uses the source of rust standard libraries among
other tools.

There are two items I paid close attention to:

1. Add a "source" output for rust.  This roughly corresponds to the
rustup component.  Using the rustup toolchain to manage rust tooling the
command would be: rustup component add rust-src. However, using guix, we
already have the source.

2. Racer requires features that are not in the stable branch of rust.
Unfortunately this is not any fault of racer. Racer uses crates from
rustc which uses unstable features.  To get around this, I built
racer using the undocumented and unsupported RUSTC_BOOTSTRAP environment
variable. Perhaps the better future solution would be to provide a
nightly rustc and use that to compile racer.

I hope someone gets some use out of racer!

- John

0001-gnu-Add-rust-peg-runtime-0.6.patch
Description: Text Data

0002-gnu-Add-rust-peg-macros-0.6.patch
Description: Text Data

0003-gnu-Add-rust-peg-0.6.patch
Description: Text Data

0004-gnu-Add-rust-derive-more-0.99.patch
Description: Text Data

0005-gnu-Add-rust-rls-span-0.5.patch
Description: Text Data

0006-gnu-Add-rust-racer-interner-0.1.patch
Description: Text Data

0007-gnu-Add-rust-racer-cargo-metadata-0.1.patch
Description: Text Data

0008-gnu-Add-rust-measureme-0.7.patch
Description: Text Data

0009-gnu-Add-rust-rustc-ap-rustc-arena-654.0.patch
Description: Text Data

0010-gnu-Add-rust-rustc-ap-rustc-macros-654.0.patch
Description: Text Data

0011-gnu-Add-rust-rustc-ap-rustc-lexer-654.0.patch
Description: Text Data

0012-gnu-Add-rust-rustc-ap-graphviz-654.0.patch
Description: Text Data

0013-gnu-Add-rust-rustc-rayon-core-0.3.patch
Description: Text Data

0014-gnu-Add-rust-rustc-rayon-0.3.patch
Description: Text Data

0015-gnu-Add-rust-rustc-ap-serialize-654.0.patch
Description: Text Data

0016-gnu-Add-rust-rustc-ap-rustc-index-654.0.patch
Description: Text Data

0017-gnu-Add-rust-rustc-ap-rustc-data-structures-654.0.patch
Description: Text Data

0018-gnu-Add-rust-rustc-ap-rustc-span-654.0.patch
Description: Text Data

0019-gnu-Add-rust-rustc-ap-rustc-ast-654.0.patch
Description: Text Data

0020-gnu-Add-rust-rustc-ap-rustc-target-654.0.patch
Description: Text Data

0021-gnu-Add-rust-rustc-ap-rustc-ast-pretty-654.0.patch
Description: Text Data

0022-gnu-Add-rust-termize-0.1.patch
Description: Text Data

0023-gnu-Add-rust-yansi-term-0.1.patch
Description: Text Data

0024-gnu-Add-rust-annotate-snippets-0.8.patch
Description: Text Data

0025-gnu-Add-rust-annotate-snippets-0.6.patch
Description: Text Data

0026-gnu-Add-rust-ap-rustc-errors-654.0.patch
Description: Text Data

0027-gnu-Add-rust-rustc-ap-rustc-feature-654.0.patch
Description: Text Data

0028-gnu-Add-rust-rustc-ap-rustc-session-654.0.patch
Description: Text Data

0029-gnu-rust-unicode-normalization-0.1-update-to-0.1.11.patch
Description: Text Data

0030-gnu-Add-rust-rustc-ap-rustc-parse-654.0.patch
Description: Text Data

0031-gnu-Add-racer.patch
Description: Text Data

0032-gnu-rust-install-source-output.patch
Description: Text Data

0033-gnu-emacs-racer-Patch-paths-to-rust-source-and-racer.patch
Description: Text Data