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Implement --remap-path-prefix #48359

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merged 1 commit into from
Mar 1, 2018
Merged

Implement --remap-path-prefix #48359

merged 1 commit into from
Mar 1, 2018

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jsgf
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@jsgf jsgf commented Feb 19, 2018

Remove experimental -Zremap-path-prefix-from/to, and replace it with
the stabilized --remap-path-prefix=from=to variant.

Implementation for #41555

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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @petrochenkov (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Feb 19, 2018
michaelwoerister
michaelwoerister reviewed Feb 20, 2018
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src/librustc/session/config.rs Outdated
.into_iter()
.map(|remap| {
let mut parts = remap.rsplitn(2, '=');
match (parts.next(), parts.next()) {
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The evaluation of components in tuple constructors is probably defined, but I still find this hard to read. And it's probably the wrong order because the iterator starts at the end :) Could you rewrite this to something like:

let mut parts = ...;
let to = parts.next();
let from = parts.next();
match (from, to) { ... }

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Is there anything that implements FromIterator<Item=T> for Option<(T,...)>? I keep ending up in situations where it would be useful (mostly parsing with split), but I suspect it would clash with an existing FromIterator for Option<T> (unless specialization helps?).

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Thanks a lot, @jsgf! The implementation looks good to me, with the bug fixed.

I think we also need to update some documentation, right @rust-lang/docs? There's an entry for the feature in the unstable book. Where should this be moved to?

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jsgf commented Feb 20, 2018

Yes, documentation was my next question.

@jsgf jsgf closed this Feb 20, 2018
@jsgf jsgf reopened this Feb 20, 2018
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jsgf commented Feb 20, 2018 •
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Removed unstable book documentation and updated rustc.1 man page, which seems to be the only place I could find written documentation on command-line options.

@jsgf jsgf changed the title rust: implement --remap-path-prefix Implement --remap-path-prefix Feb 20, 2018
@steveklabnik
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Yes, for now that's true. We haven't created a space for rustc docs yet; we wanted to.

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Alright then: @bors r+

Thanks for pushing this over the finish line, @jsgf!

@rust-lang/core, @rust-lang/compiler, @rust-lang/dev-tools: We are stabilizing path prefix remapping!

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bors commented Feb 21, 2018

📌 Commit ffd8ea7 has been approved by michaelwoerister

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Feb 21, 2018
@michaelwoerister michaelwoerister added the relnotes Marks issues that should be documented in the release notes of the next release. label Feb 21, 2018
@jsgf
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jsgf commented Feb 22, 2018

Ah, I just found a problem - it looks like having this option on the command line changes the crate hash.

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jsgf commented Feb 22, 2018

Looks like #48019/#48162 is still an issue.

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jsgf commented Feb 22, 2018

Rebasing to master seems to have fixed it, so maybe I just didn't have the other change before.

@jsgf
Implement --remap-path-prefix
56a6828 
Remove experimental -Zremap-path-prefix-from/to, and replace it with
the stabilized --remap-path-prefix=from=to variant.

This is an implementation for issue of rust-lang#41555.
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sanxiyn commented Feb 26, 2018

@bors r+

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bors commented Feb 26, 2018

📌 Commit 56a6828 has been approved by sanxiyn

@Manishearth Manishearth mentioned this pull request Feb 28, 2018
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Manishearth added a commit to Manishearth/rust that referenced this pull request Feb 28, 2018
@Manishearth
Rollup merge of rust-lang#48359 - jsgf:remap-path-prefix, r=sanxiyn
fac7d7c 
Fixes rust-lang#47311.
r? @nrc
bors added a commit that referenced this pull request Feb 28, 2018
@bors
Auto merge of #48615 - Manishearth:rollup, r=Manishearth
0e3c9bb 
Rollup of 10 pull requests

- Successful merges: #48355, #48359, #48380, #48419, #48420, #48461, #48522, #48570, #48572, #48603
- Failed merges:
@bors bors merged commit 56a6828 into rust-lang:master Mar 1, 2018
@jsgf jsgf deleted the remap-path-prefix branch March 1, 2018 06:55
@infinity0 infinity0 mentioned this pull request May 20, 2018
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@jsgf @rust-highfive @michaelwoerister @steveklabnik @bors @sanxiyn @petrochenkov