fix(ci): sync the in-tree version pins at the release bump, and gate them

[tato123]

Closes #1954.

The Release workflow has failed on every one of the last 20 pushes to main, and it is the only failure there — Source Gates 19/19, Repo Gates 19/19, Test 11/11, Python Wheel 11/11, Code Quality 20/20.

The defect

release-please's simple release type bumps [workspace.package] version and ships no cargo dependency-requirement updater. Every in-tree crate also states a registry requirement beside its path, so the closure resolves when published from a registry rather than from a checkout. Those 45 pins never move on their own.

Within one minor line that is invisible, because ^0.17.0 matches 0.17.1. The next breaking bump is where it bites — ^0.17.0 excludes 0.18.0:

error: failed to select a version for the requirement `streamlib-processor-schema = "^0.17.0"`
candidate versions found which didn't match: 0.18.0
required by package `streamlib-error v0.18.0`

The Sync Cargo.lock to the release version step ran cargo update --workspace alone — the half that cannot work while the manifests exclude their own siblings. It exits 101, so Auto-merge the release PR never runs, no tag is cut, and trigger-wheel-release is skipped. The step's own comment always said it rewrote the requirements ("Rewrite them to the release version on the release-PR branch"); the implementation never did.

Release PR #1830 (chore(main): release 0.18.0) has sat open since 2026-08-11, and https://tatolab.github.io/streamlib/simple/streamlib/ still tops out at 0.17.1. Every MVP surface landed since exists only in git.

The change

cargo xtask check-workspace-version-pins — a source-walking gate asserting every in-tree pin equals [workspace.package] version, with --fix to move them. Registered in ALL_SOURCE_WALKING_GATES, so it rides the existing consolidated source-gates job rather than a new workflow. Deliberately narrow: a path dep with no version is left alone (unpublishable but always resolvable), a pin onto a crate carrying its own version is left alone (the vendored vulkanalia trees at 0.35.0 / 0.9.0), and vendor/ is excluded from the walk outright so no rewrite can reach sources the licensing rules forbid reformatting.

The release workflow calls the same tool on the release branch before cargo update. cargo resolves the whole workspace before it builds any member, so the tool cannot be built once the bump has landed — the resolve it exists to repair is the one that fails. It is built while main still resolves, and the binary is run against the release branch (target/ is gitignored, so it survives the checkout).

The 45 pins move from 0.17.0 to 0.17.1, clearing the drift already on main. Cargo.lock is unchanged — the lock already held 0.17.1 for all of them, which is why --locked still passes.

Why the gate and not cargo metadata

cargo metadata --no-deps reads manifests without resolving them, so a requirement that excludes its own sibling parses clean. Only a real resolve fails, and the first real resolve happens on the release branch — after the bump, inside the one job whose failure blocks the tag. The gate turns a release-time wedge into a PR-time failure with a one-command fix.

Verification

Reproduced and fixed against a scratch worktree with the bump applied:

• workspace bumped to 0.18.0 with stale pins → cargo update --workspace fails with the exact CI error, and cargo build -p xtask fails the same way (the chicken-and-egg the workflow ordering solves)
• prebuilt xtask check-workspace-version-pins --fix on that broken tree → 45 pins moved → cargo update --workspace succeeds
• 12 new unit tests; cargo test --locked -p xtask 249/249 pass
• cargo run -p xtask -- check-all-source-gates → all 11 gates pass
• cargo fmt --all --check clean; no new clippy warnings in the added file
• cargo metadata --locked succeeds, so the lockfile is untouched by the pin move

Not a version hand-edit

[workspace.package].version and .release-please-manifest.json are untouched and stay release-please's alone. Only the dependency requirements, which release-please never managed, move.

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features

  • Added a workspace version-pin check to keep internal package versions synchronized.
  • Added an optional automatic fix for mismatched version pins.
  • Integrated version-pin validation into source quality checks and release preparation.

• Maintenance

  • Updated internal package references from version 0.17.0 to 0.17.1.
  • Improved release automation to update manifests and lockfiles consistently.
  • Expanded source checks from ten to eleven validation gates.

[coderabbitai]

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Review configuration:

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ce7b9563-1ca2-45e0-9f5a-613e3782cdc5

📥 Commits

Reviewing files that changed from the base of the PR and between 6a8396f and c0a4e22.

📒 Files selected for processing (1)

• xtask/src/check_workspace_version_pins.rs

📝 Walkthrough

Walkthrough

Adds an xtask gate that checks and rewrites workspace-versioned Cargo dependency pins. Updates all affected pins to 0.17.1. The release workflow runs the fix before cargo update --workspace.

Changes

Workspace version pin synchronization

Layer / File(s)	Summary
Pin scanning and rewriting xtask/src/check_workspace_version_pins.rs	Adds workspace version loading, Cargo manifest scanning, drift diagnostics, formatting-preserving rewrites, exclusions, and tests.
xtask gate and command integration xtask/src/main.rs, .github/workflows/source-gates.yml	Registers the checker as the eleventh source gate and adds the check-workspace-version-pins command with --fix.
Release workflow and manifest pin updates .github/workflows/release-please.yml, adapters/*/Cargo.toml, packages/test-fixtures/Cargo.toml, runtime/*/Cargo.toml, sdk/*/Cargo.toml	Updates in-tree dependency pins from 0.17.0 to 0.17.1. The release workflow builds the tool on main, runs it on the release branch, then updates Cargo.lock.

Estimated code review effort: 4 (Complex) | ~45 minutes

Merge Risk: 🟡 Moderate · up to 6a839

The release pin gate can miss valid Cargo dependency declarations and may misclassify unrelated version fields, allowing stale pins to reach a release branch and recreate the release failure this PR is intended to prevent. Merge should wait for structural parsing and regression coverage.

Sequence Diagram(s)

sequenceDiagram
  participant ReleasePlease
  participant ReleaseWorkflow
  participant Xtask
  participant Cargo
  ReleasePlease->>ReleaseWorkflow: create release branch with workspace version
  ReleaseWorkflow->>Xtask: build xtask while main resolves
  ReleaseWorkflow->>Xtask: rewrite workspace version pins
  Xtask->>ReleaseWorkflow: update Cargo.toml files
  ReleaseWorkflow->>Cargo: run cargo update --workspace
  Cargo->>ReleaseWorkflow: update Cargo.lock

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/release-version-pin-sync

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

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Inline comments:
In `@xtask/src/check_workspace_version_pins.rs`:
- Around line 89-98: Update manifest_inherits_workspace_package_version and the
surrounding manifest validation to parse section context structurally: recognize
table-form dependencies only within Cargo dependency sections, including
separate path/version fields, and only treat version.workspace = true as
package-version inheritance when it appears under [package]. Add regression
fixtures covering a table-form dependency stale pin and an unrelated metadata
version.workspace field.

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Fix all unresolved CodeRabbit comments on this PR:

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ec54e516-a86a-4fe6-849f-824ae6b305b8

📥 Commits

Reviewing files that changed from the base of the PR and between 528a2df and 6a8396f.

📒 Files selected for processing (20)

• .github/workflows/release-please.yml
• .github/workflows/source-gates.yml
• adapters/streamlib-adapter-cpu-readback/Cargo.toml
• adapters/streamlib-adapter-cuda/Cargo.toml
• adapters/streamlib-adapter-opengl/Cargo.toml
• adapters/streamlib-adapter-skia/Cargo.toml
• adapters/streamlib-adapter-vulkan/Cargo.toml
• packages/test-fixtures/Cargo.toml
• runtime/streamlib-api-server/Cargo.toml
• runtime/streamlib-consumer-rhi/Cargo.toml
• runtime/streamlib-engine/Cargo.toml
• runtime/streamlib-media-builtins/Cargo.toml
• runtime/streamlib-moq/Cargo.toml
• sdk/streamlib-error/Cargo.toml
• sdk/streamlib-macros/Cargo.toml
• sdk/streamlib-python-wheel/Cargo.toml
• sdk/streamlib-sdk/Cargo.toml
• sdk/vulkan-jpeg/Cargo.toml
• xtask/src/check_workspace_version_pins.rs
• xtask/src/main.rs

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