Path is not automatically detected on OSX
adaschevici opened this issue · 7 comments
Hi,
I've updated OSX to the last supplemental update and completion seems to have stopped working.
the rust-src
component path seems to no longer be detected accurately.
Setting it manually seems to not work very well as it can't find libstd
it seems this path no longer exists:
export RUST_SRC_PATH="$(rustc --print sysroot)/lib/rustlib/src/rust/src"
Versions:
rustc 1.47.0-nightly (8e21bd063 2020-08-14)
rustup 1.22.1 (b01adbbc3 2020-07-08)
racer 2.1.37
Not sure what i am missing
It seems like on 2020-07-29 the src
directory was removed and the library
directory was introduced. 2020-07-28 build has the src
directory, and 2020-07-29 has the library
directory.
I work around this by making RUST_SRC_PATH
points to a stable release which do contains a src
folder (something like .rustup\toolchains\stable-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src).
@Jaden-Giordano as per @mapkts suggestion i did a manual install of the but libstd seems to be missing in the clone of the rustc repo as described in the manual install section of racer, so still seems like something is missing
Further, the libstd
directory seems to be missing in nightly. This directory is used to validate the src path:
Line 535 in a4bcf46
So, I get the following error:
$ export RUST_SRC_PATH=~/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/
$ racer complete 3 9 main.rs /tmp/racerABCDE
Unable to find libstd under RUST_SRC_PATH. N.B. RUST_SRC_PATH variable needs to point
to the *src* directory inside a rust checkout e.g. "/home/foouser/src/rust/src". Current value
""/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/libstd""
$ ls /home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/
alloc profiler_builtins stdarch
backtrace rtstartup term
core rustc-std-workspace-alloc test
panic_abort rustc-std-workspace-core unwind
panic_unwind rustc-std-workspace-std
proc_macro std
I did not find any resources on the renaming of these directories, maybe there are even more changes. Anybody else knows something about this?
Better title for this issue would maybe be "rust-src directories have been renamed in nightly" as it does not only affect MacOS.
Looks like the new layout is already handled
Line 824 in bc47875
so maybe it just a matter of removing that assert.
Fixed some related issues in 3bcf543 and racer-rust/emacs-racer#144