emsdk 5.0.0

[softmarshmallow]

• Emscripten dual-environment output (-sENVIRONMENT=web,node) breaks Next.js Turbopack client builds due to Node built-ins require("fs") / require("path") in generated glue emscripten-core/emscripten#26134 (fixed)

Summary by CodeRabbit

• Chores

  • CI workflows broadened to detect changes in nested directories, improving trigger coverage.
  • Bumped canary package version, removed an obsolete prebuild patch script, and simplified packaging notes to keep Emscripten glue separate.
  • Updated WebAssembly linker flags for exception/longjmp handling.
  • Updated EMSDK version and its submodule pointer.

• Refactor

  • Native platform initialization internals reworked with no user-facing behavior changes.

• Note

  • No changes to public APIs or user-facing behavior.

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Project	Deployment	Review	Updated (UTC)
docs	Ready	Preview, Comment	Jan 26, 2026 4:19pm
grida	Ready	Preview, Comment	Jan 26, 2026 4:19pm

5 Skipped Deployments

Project	Deployment	Review	Updated (UTC)
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Walkthrough

Expanded workflow pull_request globs to recursive patterns; bumped wasm package version and removed its prebuild patch; switched native backend init to use AnySurfaceState; added Emscripten linker rustflags for wasm; removed two unused serde default helpers; updated emsdk version and submodule pointer.

Changes

Cohort / File(s)	Summary
Workflow Path Filters \.github/workflows/build-canvas.yml, \.github/workflows/test-crates.yml	Changed pull_request path filters from single-level globs (.github/workflows/*, crates/*) to recursive globs (.github/workflows/**, crates/**).
WASM Package & Docs crates/grida-canvas-wasm/package.json, crates/grida-canvas-wasm/AGENTS.md	Bumped package version (0.90.0-canary.0 → 0.90.0-canary.2); updated AGENTS.md to stop instructing patching and to externalize Emscripten glue.
Removed Prebuild Patch Script crates/grida-canvas-wasm/scripts/prebuild-patch-emscripten-js-glue.cjs	Deleted script that patched Emscripten JS glue to rewrite Node built-in requires.
WASM Cargo Config crates/grida-canvas-wasm/.cargo/config.toml	Added wasm32-unknown-emscripten rustflags: -C link-arg=-fexceptions and -C link-arg=-sSUPPORT_LONGJMP=1 (with explanatory comments).
Native Backend Init crates/grida-dev/src/platform/native_application.rs	Replaced direct Backend usage with AnySurfaceState wrapper; obtain backend via state.backend() after AnySurfaceState::from_gpu(state).
IO Defaults Removal crates/grida-canvas/src/io/io_grida.rs	Removed unused helper functions default_locked() -> bool and default_z_index() -> i32.
EMSDK Version & Submodule bin/activate-emsdk, third_party/externals/emsdk	Updated EMSDK_VERSION from 4.0.7 to 5.0.0; advanced emsdk submodule pointer to new commit.

Sequence Diagram(s)

(omitted — changes do not introduce a new multi-component sequential flow requiring visualization)

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• Daily RC #478: Modifies the same GitHub Actions workflow files and expands path globs, overlapping trigger logic.
• Grida Canvas - emscripten node target (render without browser) #505: Related to grida-canvas-wasm packaging/Emscripten glue and backend changes (AnySurfaceState).
• Grida Canvas WASM Backend #398: Overlaps with grida-canvas-wasm packaging and removal of the prebuild patch script.

Suggested labels

cg

Poem

🐇 I nibbled globs and hopped the tree,

Canary climbed to two for me,
I wrapped the surface, found the backend,
Removed a patch and tweaked the link,
Tiny rabbit fixes, light and free.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'emsdk 5.0.0' accurately reflects the main change—updating Emscripten SDK to version 5.0.0 across configuration files, submodule pointers, and related dependencies.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch canary

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