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Skip all cargo fix that tends to write to registry cache. #9938

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merged 1 commit into from Oct 7, 2021

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weihanglo
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Skip all cargo fix that tends to write to registry cache.

This is a temporary hack for #9857. The real fix may need to touch rustc.

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r? @alexcrichton

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Sep 22, 2021
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weihanglo commented Sep 23, 2021

Note that unfortunately the warning still points to file of dependencies, which is wrong 😞

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Seems reasonable to me!

@ehuss mind also taking a look though? You're more in the thick-of-things with cargo fix than I am.

@@ -1791,3 +1791,58 @@ fn non_edition_lint_migration() {
// Check that it made the edition migration.
assert!(contents.contains("from_utf8(crate::foo::FOO)"));
}

// This test will break after rust-lang/rust#88514 being fixed.
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Could the test mostly just assert that nothing is fixed, which means that this wouldn't break when rust-lang/rust is updated?

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Sure! Updated. Thank for the review 😆

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ehuss commented Oct 7, 2021

Thanks! Looks good. I have two minor concerns, but I don't think they are too important:

  • It may be possible that someone has a project inside CARGO_HOME. I haven't really seen that, so let's hope nobody does that.
  • The test as written may stop being valid if and when rustc fixes that particular diagnostic. That's always a danger when checking rustc diagnostics, and especially when using with_stderr_does_not_contain.

@bors r+

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bors commented Oct 7, 2021

📌 Commit 0565daf has been approved by ehuss

@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 Oct 7, 2021
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bors commented Oct 7, 2021

⌛ Testing commit 0565daf with merge dea587a...

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bors commented Oct 7, 2021

☀️ Test successful - checks-actions
Approved by: ehuss
Pushing dea587a to master...

@bors bors merged commit dea587a into rust-lang:master Oct 7, 2021
@weihanglo weihanglo deleted the issue-9857 branch October 7, 2021 23:45
bors added a commit to rust-lang-ci/rust that referenced this pull request Oct 13, 2021
Update cargo

7 commits in d56b42c549dbb7e7d0f712c51b39400260d114d4..c7957a74bdcf3b11e7154c1a9401735f23ebd484
2021-09-27 13:44:18 +0000 to 2021-10-11 20:17:07 +0000
- Add some more information to verbose version. (rust-lang/cargo#9968)
- Skip all `cargo fix` that tends to write to registry cache. (rust-lang/cargo#9938)
- Stabilize named profiles (rust-lang/cargo#9943)
- Update git2 (rust-lang/cargo#9963)
- Distinguish lockfile version req from normal dep in resolver error message (rust-lang/cargo#9847)
- nit: Allocated slightly bigger vec than needed (rust-lang/cargo#9954)
- Add shell completion for shorthand commands (rust-lang/cargo#9951)
@ehuss ehuss added this to the 1.57.0 milestone Feb 6, 2022
bors added a commit that referenced this pull request Jan 1, 2024
Fix fix::fix_in_dependency to not rely on rustc

This changes the `fix::fix_in_dependency` test so that it does not rely on the behavior of rustc.

This test is checking the behavior when rustc includes a suggestion diagnostic that modifies a file in CARGO_HOME from a dependency. rustc should not be emitting suggestions that point outside of the current crate, but there are some known bugs where it does this. #9938 added a workaround for this to avoid writing to CARGO_HOME.

However, the current test was relying on one of those bugs in rustc to exhibit its behavior. rust-lang/rust#119204 is fixing that particular behavior. Instead of relying on issues in rustc, this PR changes the test so that the test creates a fake `rustc` executable that will emit a hard-coded JSON message that tells `cargo fix` to modify a file in CARGO_HOME. This should be stable as it is no longer relying on rustc.

Testing or validating this change is a little tricky. You have to essentially comment out [these three lines](https://github.com/rust-lang/cargo/blob/4f70d1781a2b2d3611087e1ee6e8096903c9b73a/src/cargo/ops/fix.rs#L654-L656) from the original #9938 change, and verify that the test fails (it says "Fixed" in the output). With those three lines in place, it should pass.
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5 participants