ci(desktop-smoke): cache global openclaw install and cargo-installed drivers#84
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…drivers Windows Desktop Smoke ran 13m per job — 6m 12s in npm install -g openclaw (native-module rebuilds), 57s in cargo install tauri-driver, 37s in cargo install msedgedriver-tool. None were cached across runs. - Pin openclaw CLI to the version from tests/desktop/harness.mjs (2026.4.11 today) instead of installing latest, so cache keys are stable and CI uses the same version the test harness expects. - actions/cache@v4 keyed on openclaw-cli-<os>-<version> covers the global install directory (lib/node_modules/openclaw + shim scripts). Cache miss still installs from registry; subsequent runs skip the install entirely. - Replace two cargo install ... --locked calls with baptiste0928/cargo-install@v3 (tauri-driver + msedgedriver-tool). The action caches the compiled binary keyed on crate+git+version+toolchain; cache hit copies rather than recompiles. - Split the msedgedriver-tool step into two: cached crate install, then a separate "Materialize Edge WebDriver binary" step that runs the tool to download the matching msedgedriver.exe (the download still needs to happen per-run since the Edge version on the runner can change). Expected Windows Desktop Smoke on cache hit: ~5m (down from 13m). Linux and macOS also benefit from cached openclaw + tauri-driver. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…8 dir First attempt used baptiste0928/cargo-install@v3, which installs crates into its own managed cache dir and prepends it to PATH. But tests/desktop/harness.mjs hardcodes the path ~/.cargo/bin/tauri-driver, so smoke fails after install even though the binary is on PATH elsewhere. Revert to plain \`cargo install --locked\` (which installs to ~/.cargo/bin) and add an actions/cache@v4 keyed on OS that covers both tauri-driver and msedgedriver-tool binaries. Cache miss falls through to the install; cache hit skips it entirely. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This was referenced Apr 23, 2026
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What
Cache three artifacts that Desktop Smoke previously rebuilt from scratch on every run:
Why
Windows Desktop Smoke was running 13 minutes per PR and the Windows machine spent all its extra time in three compiles that never varied between runs:
All three are deterministic given the version pin, so caching is trivially safe. Linux and macOS benefit too — openclaw and tauri-driver caches apply there.
Expected Windows Desktop Smoke on cache hit: ~5m, down from 13m. First run after this merges pays the old cost once to populate the cache.
Behavior changes worth noting
Test plan
Target branch
`release/0.3.0` — pure CI optimization, no code changes. Lands first where it's most useful (rc.2 stabilization has several more PRs coming). Forward-propagates to main and develop via standard release merge.
🤖 Generated with Claude Code