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Stop the counts line implying a comparison it cannot support #2
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| # Test the Rust crates — all of them, on main and on anything that touches them. | |
| # | |
| # WHY THIS EXISTS, AND WHAT IT WOULD HAVE CAUGHT. Until now the only workflow | |
| # was `ayni.yml`, which runs `cargo test` in `crates/diaswarm-core` alone and | |
| # only on a tag or a follower-touching PR. `diaswarm-net` — the transport — had | |
| # never run in CI at all, so "all tests green" meant "somebody ran cargo test | |
| # locally, on some subset, at some point". The transport defect fixed in | |
| # 634acaf shipped in every build this project ever made while that sentence was | |
| # being written down repeatedly. | |
| # | |
| # ONE JOB, ONE TARGET DIRECTORY, AND THAT IS THE WHOLE COST CONTROL. There is | |
| # no cargo workspace here: every crate has its own `target/`, so a job per | |
| # crate would compile p2panda, iroh and tokio four separate times. Pointing all | |
| # four at one `CARGO_TARGET_DIR` compiles the shared dependency tree once and | |
| # then does four cheap link-and-run passes. | |
| name: crates | |
| on: | |
| push: | |
| branches: [main] | |
| paths: | |
| - "crates/**" | |
| - "rust-toolchain.toml" | |
| - ".github/workflows/crates.yml" | |
| pull_request: | |
| paths: | |
| - "crates/**" | |
| - "rust-toolchain.toml" | |
| - ".github/workflows/crates.yml" | |
| workflow_dispatch: | |
| # Pushing twice in a minute should not pay for two full runs. The in-flight run | |
| # for the same ref is cancelled and the newer commit is the one that gets an | |
| # answer. | |
| concurrency: | |
| group: crates-${{ github.ref }} | |
| cancel-in-progress: true | |
| jobs: | |
| test: | |
| runs-on: ubuntu-latest | |
| # The networked suites are genuinely slow — `peer.rs` alone is a minute, and | |
| # the whole of `diaswarm-net` is about four. This is a ceiling against a | |
| # hang, not a target. | |
| timeout-minutes: 45 | |
| env: | |
| # THE ONE THING THAT MAKES THIS AFFORDABLE. See the header. | |
| CARGO_TARGET_DIR: ${{ github.workspace }}/target-ci | |
| CARGO_TERM_COLOR: always | |
| # A backtrace costs nothing until something fails, and when something | |
| # fails in a spawned tokio task the line number is the whole message. | |
| RUST_BACKTRACE: 1 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| # rust-toolchain.toml pins the channel, so there is deliberately no | |
| # version named here — one pin, in the file every local build reads too. | |
| - name: Rust | |
| run: | | |
| rustup show active-toolchain || rustup toolchain install | |
| rustc --version | |
| - uses: actions/cache@v4 | |
| with: | |
| path: | | |
| ~/.cargo/registry | |
| ~/.cargo/git | |
| target-ci | |
| key: crates-${{ runner.os }}-${{ hashFiles('crates/*/Cargo.toml', 'rust-toolchain.toml') }} | |
| restore-keys: crates-${{ runner.os }}- | |
| # Sequential and named, so a failure says which crate without anyone | |
| # opening the log. `--no-fail-fast` inside a crate; the shell stops at the | |
| # first crate that fails, because a broken core makes the rest noise. | |
| - name: diaswarm-core | |
| working-directory: crates/diaswarm-core | |
| run: cargo test --no-fail-fast | |
| - name: diaswarm-keys | |
| working-directory: crates/diaswarm-keys | |
| run: cargo test --no-fail-fast | |
| - name: diaswarm-android | |
| working-directory: crates/diaswarm-android | |
| run: cargo test --no-fail-fast | |
| # LAST, AND THE REASON THE FILE EXISTS. Real iroh endpoints, real QUIC, | |
| # mDNS between peers inside the runner. If this one turns out to be flaky | |
| # on a hosted runner it must be made reliable or made explicit — not | |
| # quietly dropped back out, which is the state it is being rescued from. | |
| - name: diaswarm-net | |
| working-directory: crates/diaswarm-net | |
| run: cargo test --no-fail-fast |