Add rust-fingerprint task and SCCACHE passthrough env#92167
Merged
Conversation
Replace duplicated Rust input globs across every turbo task with a single rust-fingerprint task that computes a TURBO_HASH stamp file. All Rust build/check tasks now depend on this stamp instead of repeating the full glob list. Also add SCCACHE_* to globalPassThroughEnv so sccache env vars are available to turbo tasks.
nextjs-bot
added
created-by: Turbopack team
- Move CI env var to root turbo.json globalEnv, removing duplication from every Rust build task in turbo.jsonc - Exclude crates/*/tests/** from rust-fingerprint inputs (3.5M of test fixtures that don't affect build output)
The cache-build-native task is still referenced by build_and_deploy.yml and pull-turbo-cache.js to cache native build artifacts. Re-add it as a task that depends on rust-fingerprint instead of duplicating input globs.
Collaborator
Stats from current PR✅ No significant changes detected📊 All Metrics📖 Metrics GlossaryDev Server Metrics:
Build Metrics:
Change Thresholds:
⚡ Dev Server
📦 Dev Server (Webpack) (Legacy)📦 Dev Server (Webpack)
⚡ Production Builds
📦 Production Builds (Webpack) (Legacy)📦 Production Builds (Webpack)
📦 Bundle SizesBundle Sizes⚡ TurbopackClient Main Bundles
Server Middleware
Build DetailsBuild Manifests
📦 WebpackClient Main Bundles
Polyfills
Pages
Server Edge SSR
Middleware
Build DetailsBuild Manifests
Build Cache
🔄 Shared (bundler-independent)Runtimes
📎 Tarball URL |
![vercel[bot]](https://avatars.githubusercontent.com/in/8329?s=60&v=4){kind=small}
Collaborator
Tests Passed |
mischnic
approved these changes
Mar 31, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What
Replace duplicated Rust input globs across every turbo task with a single rust-fingerprint task that computes a TURBO_HASH stamp file. All Rust build/check tasks now depend on this stamp instead of repeating the full glob list.
Also add
SCCACHE_*toglobalPassThroughEnvsosccacheenv vars are available to turbo tasks.Why
SCCACHE_*andRUSTC_WRAPPERenv vars are required to build under sccache, but do not affect the build in a material way.This simplifies the repeated constructs that are unfortunately difficult to factor out, but is provably the same as listing all the files each time (the rust-fingerprint file's content is its
TURBO_HASH).