> I'm becoming a big fan of racer, so I'm all for this! I haven't
> looked at the internals however - I presume racer only needs the
> source for std (and core) not the compiler itself?
Yes, I think you are correct: only libstd sources are needed,
which are about 3 MiB.
Two additional notes:
1. the _root_ location of the source SHOULD be
‘$prefix/lib/rustlib/src’ (this has been standardized
by the Rust community, see [rust-buildbot#102]).
In other words, the following file should exist after
installing the package:
/usr/lib/rustlib/src/rust/src/libstd/io/mod.rs
Racer has already been updated to search the source there,
in the absence of RUST_SRC_PATH (see [racer#598]).
2. If only libstd is included, perhaps the package should be
named libstd-rust-src (for symmetry with libstd-rust-dev),
instead of rust-src.
Thanks for considering,
d.
[rust-buildbot#102]
https://github.com/rust-lang/rust-buildbot/pull/102#issuecomment-222771857
[racer#598] https://github.com/phildawes/racer/pull/598
