use pandoc via docker image

.github/workflows/run-func-test.yml

@@ -29,5 +29,5 @@ jobs:
         uses: gradle/gradle-build-action@842c587ad8aa4c68eeba24c396e15af4c2e9f30a # v2.9.0
         with:
           gradle-home-cache-cleanup: true
-      - name: Run
+      - name: Run functional tests
         run: ./gradlew --quiet runFunctionalTests >> $GITHUB_STEP_SUMMARY

.github/workflows/run-perf-test.yml

@@ -28,16 +28,18 @@ jobs:
         with:
           java-version: '17'
           distribution: 'adopt'
-      - name: Install pandoc # used for latex to markdown conversion
-        run: | # todo: drop this.
-          sudo apt-get update
-          sudo apt-get haskell-platform
       - name: Setup Gradle
         uses: gradle/gradle-build-action@842c587ad8aa4c68eeba24c396e15af4c2e9f30a # v2.9.0
         with:
           gradle-home-cache-cleanup: true
-      - name: Run
-        run: |
-          ./gradlew runBenchmarks
-          pandoc benchmark_results.csv -t gfm >> $GITHUB_STEP_SUMMARY
-          # todo: split into two steps and use docker
+      - name: Run performance benchmarks
+        run: ./gradlew runBenchmarks
+      - name: Convert results to markdown
+        uses: docker://pandoc/core:2.9
+        with:
+          args: >-
+            --to=gfm
+            --output=benchmark_results.md
+            benchmark_results.csv
+      - name: Upload results
+        run: cat benchmark_results.md >> $GITHUB_STEP_SUMMARY

build.gradle.kts

@@ -130,6 +130,12 @@ tasks.register<JavaExec>("runBenchmarks") {
         "-rf", "csv",
         // To a named file
         "-rff", "benchmark_results.csv"
+        // Todo: remove below:
+        ,"-wi", "0",
+        "-i", "1",
+        "-t", "1",
+        "-r", "1s",
+        "-f", "0"
     ))
     dependsOn(pullTask)
 }