adding action

Author: epolack

.github/workflows/regression.yaml

@@ -0,0 +1,23 @@
+name: Regression tests
+on:
+  pull_request:
+
+jobs:
+  Benchmark:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@latest
+        with:
+          version: 1
+      - uses: julia-actions/julia-buildpkg@latest
+      - name: Install dependencies
+        run: julia -e 'using Pkg; pkg"add PkgBenchmark [email protected]"'
+      - name: Run benchmarks
+        # Remove baseline once merged. Regression tests will only work after this is merged
+        # in master.
+        run: julia -e 'using BenchmarkCI; BenchmarkCI.judge(; baseline="HEAD")'
+      - name: Print judgement
+        run: julia -e 'using BenchmarkCI; BenchmarkCI.displayjudgement()'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -10,4 +10,5 @@ Manifest.toml
 /LocalPreferences.toml
 .vscode
 .CondaPkg
-/benchmark/tune.json
+/.benchmarkci
+/benchmark/**/*.json