enable codspeed

.github/workflows/codspeed.yml

@@ -0,0 +1,34 @@
+name: codspeed-benchmarks
+
+on:
+  # Run on pushes to the main branch
+  push:
+    branches:
+      - "latest"
+  # Run on pull requests
+  pull_request:
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
+
+jobs:
+  benchmarks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup rust toolchain, cache and cargo-codspeed binary
+        uses: moonrepo/setup-rust@v0
+        with:
+          channel: stable
+          cache-target: release
+          bins: cargo-codspeed
+
+      - name: Build the benchmark target(s)
+        run: cargo codspeed build -p sourmash
+
+      - name: Run the benchmarks
+        uses: CodSpeedHQ/action@v2
+        with:
+          run: "cd src/core && cargo codspeed run"
+          token: ${{ secrets.CODSPEED_TOKEN }}

flake.nix

@@ -129,6 +129,7 @@
             cargo-udeps
             cargo-deny
             cargo-wasi
+            cargo-codspeed
             #cargo-semver-checks
             nixpkgs-fmt
           ];