Add support for --compile_one_dependency
#2598
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This looks reasonable - do you think there's a reasonable way to add a test for this behaviour? |
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I added a test, which I think should work. I'm not 100% sure since I haven't worked with the bazel CI system before. |
rrbutani
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Apr 10, 2024
[](https://renovatebot.com) This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [rules_rust](https://togithub.com/bazelbuild/rules_rust) | http_archive | minor | `0.41.1` -> `0.42.0` | --- ### Release Notes <details> <summary>bazelbuild/rules_rust (rules_rust)</summary> ### [`v0.42.0`](https://togithub.com/bazelbuild/rules_rust/releases/tag/0.42.0) [Compare Source](https://togithub.com/bazelbuild/rules_rust/compare/0.41.1...0.42.0) ### 0.42.0 ```python load("@​bazel_tools//tools/build_defs/repo:http.bzl", "http_archive") http_archive( name = "rules_rust", integrity = "sha256-XT1YVJ6FHJTXBr1v3px2fV37/OCS3dQk3ul+XvfIIf8=", urls = ["https://github.com/bazelbuild/rules_rust/releases/download/0.42.0/rules_rust-v0.42.0.tar.gz"], ) ``` Additional documentation can be found at: https://bazelbuild.github.io/rules_rust/#setup #### What's Changed - Fix crates.io URL by [@​ericmcbride](https://togithub.com/ericmcbride) in [bazelbuild/rules_rust#2597 - Add support for `--compile_one_dependency` by [@​william-smith-skydio](https://togithub.com/william-smith-skydio) in [bazelbuild/rules_rust#2598 - Update rules_apple by [@​sgowroji](https://togithub.com/sgowroji) in [bazelbuild/rules_rust#2602 - Support building more things with bzlmod by [@​matts1](https://togithub.com/matts1) in [bazelbuild/rules_rust#2601 - Make bazel lock file cross-platform by [@​cameron-martin](https://togithub.com/cameron-martin) in [bazelbuild/rules_rust#2453 - Added Rust 1.77.1 by [@​UebelAndre](https://togithub.com/UebelAndre) in [bazelbuild/rules_rust#2591 - Fix (+) In vendored crates semver metadata by [@​ericmcbride](https://togithub.com/ericmcbride) in [bazelbuild/rules_rust#2579 - Keep default_features parity from bzlmod to workspace by [@​Lev1ty](https://togithub.com/Lev1ty) in [bazelbuild/rules_rust#2606 - clippy: use --cap-lints=warn; apply clippy_flags when capture_output=True by [@​goffrie](https://togithub.com/goffrie) in [bazelbuild/rules_rust#2451 - Added Rust 1.77.2 by [@​UebelAndre](https://togithub.com/UebelAndre) in [bazelbuild/rules_rust#2608 - Re-vendor crate_universe outputs by [@​UebelAndre](https://togithub.com/UebelAndre) in [bazelbuild/rules_rust#2609 - Release 0.42.0 by [@​UebelAndre](https://togithub.com/UebelAndre) in [bazelbuild/rules_rust#2610 #### New Contributors - [@​Lev1ty](https://togithub.com/Lev1ty) made their first contribution in [bazelbuild/rules_rust#2606 **Full Changelog**: bazelbuild/rules_rust@0.41.1...0.42.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/bazel-contrib/toolchains_llvm). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNjkuMiIsInVwZGF0ZWRJblZlciI6IjM3LjI2OS4yIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=--> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
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The
--compile_one_dependencyflag (docs) changesbazel buildetc. to accept a file path and build the target corresponding to that file. This is useful for check-on-save with rust-analyzer in combination with the newly-added$saved_filecommand substitution (rust-lang/rust-analyzer#15476).Officially
--compile_one_dependencyonly supports the builtin C++ and Java rules, but an undocumented flag can be added to attributes to turn them into sources supporting--compile_one_dependency. I'm not sure what the status of this support is, but it appears to work for all bazel versions up to at least 7.1.1, and if support is removed the flag is pretty harmless.Before this change:
After: