Previous runs were burning ~90-120s on rustup download, ~60-90s on
cargo-audit/cargo-tarpaulin source install, and ~60-90s on Go module
download because setup-go couldn't find go.sum at the repo root.
Fixes:
- setup-go cache-dependency-path: veza-backend-api/go.sum
(was silently failing with "Dependencies file is not found")
- New actions/cache step for ~/.rustup + ~/.cargo/bin keyed on
stable+components — skips rustup install on warm cache
- New actions/cache step for ~/go/bin keyed on tool set — skips
go install @latest on warm cache
- cargo install cargo-audit / cargo-tarpaulin gated on
`command -v` so they're no-ops when cached
- Add restore-keys to the Cargo deps cache for partial hits when
Cargo.lock changes
- rust-ci.yml now watches its own path in the trigger (was a bug:
edits to the workflow didn't retrigger it)
Expected impact on a warm run: Go jobs -90s, Rust jobs -3min.
First run after this commit will still be slow (cache warm-up).