Make pathogen-repo-ci fail when config is missing or no builds are attempted

.github/workflows/ci.yaml

@@ -30,12 +30,6 @@ jobs:
       artifact-name: outputs-test-pathogen-repo-ci
     secrets: inherit
 
-  test-pathogen-repo-ci-no-example-data:
-    uses: ./.github/workflows/pathogen-repo-ci.yaml
-    with:
-      repo: nextstrain/zika-tutorial
-      artifact-name: outputs-test-pathogen-repo-ci-no-example-data
-
   test-docs-ci-conda:
     uses: ./.github/workflows/docs-ci.yaml
     with:

.github/workflows/pathogen-repo-ci.yaml

@@ -238,29 +238,49 @@ jobs:
           ref: ${{ needs.workflow-context.outputs.sha }}
           path: ${{ env.NEXTSTRAIN_GITHUB_DIR }}
 
+      - name: Verify nextstrain-pathogen.yaml file
+        run: >
+          if [[ ! -f nextstrain-pathogen.yaml ]]; then
+            echo "To use this workflow, there must be a 'nextstrain-pathogen.yaml' file present in the repository root";
+            exit 1;
+          fi
+
       - name: Set up Nextstrain runtime ${{ matrix.runtime }}
         uses: ./.git/nextstrain/.github/actions/setup-nextstrain-cli
         with:
           cli-version: ">=8.3.0"
           runtime: ${{ matrix.runtime }}
 
       - name: Run ingest
+        id: ingest
         uses: ./.git/nextstrain/.github/actions/run-nextstrain-ci-build
         with:
           directory: ingest
           runtime: ${{ matrix.runtime }}
           artifact-name: ${{ inputs.artifact-name }}
 
       - name: Run phylogenetic
+        id: phylogenetic
         uses: ./.git/nextstrain/.github/actions/run-nextstrain-ci-build
         with:
           directory: phylogenetic
           runtime: ${{ matrix.runtime }}
           artifact-name: ${{ inputs.artifact-name }}
 
       - name: Run nextclade
+        id: nextclade
         uses: ./.git/nextstrain/.github/actions/run-nextstrain-ci-build
         with:
           directory: nextclade
           runtime: ${{ matrix.runtime }}
           artifact-name: ${{ inputs.artifact-name }}
+
+      - name: Verify a workflow ran
+        run: |
+          # shellcheck disable=SC2129,SC2242
+
+          # if we see at least one success, we're good
+          echo "INGEST ATTEMPTED=${{ steps.ingest.outputs.run-attempted }}" >> "$GITHUB_STEP_SUMMARY"
+          echo "PHYLOGENETIC ATTEMPTED=${{ steps.phylogenetic.outputs.run-attempted }}" >> "$GITHUB_STEP_SUMMARY"
+          echo "NEXTCLADE ATTEMPTED=${{ steps.nextclade.outputs.run-attempted }}" >> "$GITHUB_STEP_SUMMARY"
+          exit ${{ contains(steps.*.outputs.run-attempted, 'true') && '0' || '1' }}

actions/run-nextstrain-ci-build/action.yaml

@@ -26,19 +26,32 @@ inputs:
     type: string
     required: true
 
+outputs:
+  run-attempted:
+    description: >-
+      Boolean indicating if the build step was _attempted_.
+
+      N.b., this does not indicate if the build step *succeeded*, only
+      that the requirements were met to attempt to run it.
+    value: ${{ steps.run-build.outputs.run-attempted }}
+
 runs:
   using: "composite"
   steps:
     - id: run-build
       env:
         DIR: ${{ inputs.directory }}
       run: |
-        if [[ -f nextstrain-pathogen.yaml && -f "$DIR"/Snakefile && -f "$DIR"/build-configs/ci/config.yaml ]]; then
+        if [[ -f "$DIR"/Snakefile && -f "$DIR"/build-configs/ci/config.yaml ]]; then
+          echo "run-attempted=true" >> "$GITHUB_OUTPUT"
+
           nextstrain check-setup ${{ inputs.runtime }} --set-default
           nextstrain build "$DIR" --configfile build-configs/ci/config.yaml
         else
+          echo "run-attempted=false" >> "$GITHUB_OUTPUT"
+
           echo "Skipping $DIR build due to one or more missing files."
-          for i in nextstrain-pathogen.yaml "$DIR"/Snakefile "$DIR"/build-configs/ci/config.yaml; do
+          for i in "$DIR"/Snakefile "$DIR"/build-configs/ci/config.yaml; do
             [[ -f $i ]] || echo missing "$i"
           done
         fi