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Test rust-analyzer in CI #99444

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@cuviper cuviper commented Jul 19, 2022

This adds x.py support for testing rust-analyzer in-tree, and runs
that in CI for x86_64-gnu-tools so we can track toolstate.

cuviper added 2 commits July 18, 2022 18:20
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Add ./x.py test rust-analyzer
7537def 
This adds support for testing `rust-analyzer` in-tree.
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Test rust-analyzer in CI
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r? @Mark-Simulacrum

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@rustbot rustbot added T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. labels Jul 19, 2022
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 19, 2022
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cuviper commented Jul 19, 2022

However, the tests are failing locally for me in-tree, and I don't know why. I'm aware of the proc-macro bridge issues due to nightly changes, but even with cargo +stable test I get a lot of failures where "Expect:" is empty. The same commit tests fine for me in an independent checkout of the rust-analyzer repo.

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cuviper commented Jul 19, 2022

If the whole testsuite is infeasible, we could also narrow it -- e.g. -p proc-macro-srv shows the current problems:

failures:
    tests::test_attr_macro
    tests::test_derive_empty
    tests::test_derive_error
    tests::test_fn_like_macro
    tests::test_fn_like_macro2

@fasterthanlime fasterthanlime mentioned this pull request Jul 19, 2022
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even with cargo +stable test I get a lot of failures where "Expect:" is empty

I'm able to reproduce the failures when checking out your branch. Those tests use expect-test's expect_file!.

strace tells the story:

$ clear; strace -e open,openat -ff cargo t test_string_highlighting
(lots of output omitted)
[pid 38722] openat(AT_FDCWD, "/home/amos/bearcove/rust/crates/ide/src/syntax_highlighting/./test_data/highlight_strings.html", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

Indeed that file doesn't exist:

$ stat /home/amos/bearcove/rust/crates/ide/src/syntax_highlighting/./test_data/highlight_strings.html
stat: cannot statx '/home/amos/bearcove/rust/crates/ide/src/syntax_highlighting/./test_data/highlight_strings.html': No such file or directory

The correct path is as follows:

$ stat /home/amos/bearcove/rust/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/./test_data/highlight_strings.html 
  File: /home/amos/bearcove/rust/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/./test_data/highlight_strings.html
  Size: 45127           Blocks: 96         IO Block: 4096   regular file
Device: 803h/2051d      Inode: 16409270    Links: 1
Access: (0664/-rw-rw-r--)  Uid: ( 1000/    amos)   Gid: ( 1000/    amos)
Access: 2022-07-18 13:45:36.999588514 +0200
Modify: 2022-07-18 13:44:44.295860084 +0200
Change: 2022-07-18 13:44:44.295860084 +0200
 Birth: 2022-07-18 13:44:44.295860084 +0200

That feels like a bug in expect-test. It uses the file! macro then later uses it to build an absolute path by finding the workspace root. However, it goes too deep and finds rust's top-level Cargo.toml, and then the paths are all wrong.

This was referenced Jul 19, 2022
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fasterthanlime added a commit to fasterthanlime/rust-analyzer that referenced this pull request Jul 19, 2022
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Upgrade to [email protected]
1b41647 
cf. rust-analyzer/expect-test#33
cf. rust-lang/rust#99444 (comment)
@fasterthanlime fasterthanlime mentioned this pull request Jul 19, 2022
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bors added a commit to rust-lang/rust-analyzer that referenced this pull request Jul 19, 2022
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Auto merge of #12817 - fasterthanlime:expect-test-1-4-0, r=lnicola
7d20ff3 
Upgrade to [email protected], add CARGO_WORKSPACE_DIR env var

This should make ra's test suite runnable from within `rust-analyzer/rust`.

`@cuviper` ran into that when trying to run RA tests from rust CI: rust-lang/rust#99444 (comment)
fasterthanlime added a commit to fasterthanlime/rust that referenced this pull request Jul 19, 2022
@fasterthanlime
:up_arrow: rust-analyzer
4f37325 
This bumps `expect-test` to 1.4.0, which is required for tests to
pass from the `rust-lang/rust` repo

cf. rust-lang#99444
@fasterthanlime fasterthanlime mentioned this pull request Jul 19, 2022
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@cuviper I opened a PR against your PR to also bump the rust-analyzer submodule, which should let tests pass.

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@cuviper I opened a PR against your PR to also bump the rust-analyzer submodule, which should let tests pass.

So, this is enough to make cargo check pass from rust/src/tools/rust-analyzer, but not from x.py test rust-analyzer. I guess the .cargo/config.toml doesn't get picked up then?

The alternative there is to set CARGO_WORKSPACE_DIR from x.py directly. (The changes to expect-test are still good since we still want to be able to run cargo check from within the rust-analyzer tree in rust-lang/rust)

fasterthanlime added a commit to fasterthanlime/rust that referenced this pull request Jul 19, 2022
@fasterthanlime
Set CARGO_WORKSPACE_DIR directly in prepare_tool_cargo
9c766ad 
cf. rust-lang#99444 (comment)

cf. rust-analyzer/expect-test#33
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I opened a PR against your PR

I updated this PR to set CARGO_WORKSPACE_DIR from "x.py" (well, really, bootstrap::tool::prepare_tool_cargo) and all rust-analyzer tests now pass with ./x.py test rust-analyzer 🎉

@fasterthanlime fasterthanlime mentioned this pull request Jul 19, 2022
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I opened #99465 for research purposes - it re-adds rust-analyzer as a subtree, and it includes all commits from this here PR & my follow-up.

The reason I did this now is because @jyn514 and others suggested "skipping toolstate altogether" and going straight for subtree.

fasterthanlime added a commit to fasterthanlime/rust that referenced this pull request Jul 19, 2022
@fasterthanlime
Add ./x.py test rust-analyzer
0b33563 
This adds support for testing `rust-analyzer` in-tree.

Test rust-analyzer in CI

Set CARGO_WORKSPACE_DIR directly in `prepare_tool_cargo`

cf. rust-lang#99444 (comment)

cf. rust-analyzer/expect-test#33

Various x.py changes for Submodule => InTree, and removing toolstate

Introduce `rust-analyzer/in-rust-tree` cargo feature

This allows skipping ra's "check_merge_commits" test for now.

Later, it might be used to link against `extern proc_macro` directly,
cf. rust-lang/rust-analyzer#12803

More cleanups around the RustAnalyzer tool in bootstrap

Start fixing lints

Deny the same warnings x.py does in all RA crates

Warn on x.py warnings, don't deny

cf. https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer/topic/rust-analyzer.20as.20a.20subtree.3A.20experimental.20PR.20status/near/290114101

Fix rust_2018_idioms with cargo fix

Add warning groups for more RA crates

Fix more 2015 idioms (with 2018_idioms, naming is fun)

RA passes all x.py warnings

Fix formatting after fixing idioms/additional warnings

Enable in-rust-tree feature, RA tests pass

Print stdout+stderr when nested cargo invocation fails
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Thanks! Closing per https://rust-lang.zulipchat.com/#narrow/stream/301329-t-devtools/topic/test.20--stage.200.20rust-analyzer/near/290636735.

Veykril pushed a commit to Veykril/rust-analyzer that referenced this pull request Aug 9, 2022
@fasterthanlime @Veykril
Upgrade to [email protected]
6220d84 
cf. rust-analyzer/expect-test#33
cf. rust-lang/rust#99444 (comment)
@cuviper cuviper deleted the test-rust-analyzer branch October 15, 2022 00:16
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