try to find relevant changes

Author: Tofel

.github/workflows/generate-go-docs.yaml

@@ -39,24 +39,52 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Detect changes
+        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
+        id: changes
+        with:
+          filters: |
+            seth:
+              - 'seth/**/*.go'
+            wasp:
+              - 'wasp/**/*.go'
+            havoc:
+              - 'havoc/**/*.go'
+            lib:
+              - 'lib/**/*.go'
+            k8s-test-runner:
+              - 'k8s-test-runner/**/*.go'
+            framework:
+              - 'framework/**/*.go'
+            # later add tools here or make this filter dynamic (if possible)
+
       - name: Find all go modules
         shell: bash
         id: go-modules
         run: |
           PATH=$PATH:$(go env GOPATH)/bin
-          export PATH        
+          export PATH                  
+
           gomods_output=$(gomods 2>&1)
 
           # Extract the parent directories of go.mod files
           parent_folders=$(echo "$gomods_output" | grep 'go\.mod$' | sed 's/\/go\.mod//' | sed 's/^[ \t]*//;s/[ \t]*$//' | xargs -n 1)
 
           # Convert parent directories into a JSON matrix
-          echo "$parent_folders" | jq -R -s 'split("\n") | map(select(length > 0)) | map({folder: .})' > folders.json
+          echo "$parent_folders" | jq -R -s 'split("\n") | map(select(length > 0)) | map({folder: .})' > all_folders.json
+
+          # Filter the folders based on the changes in the PR
+          cat all_folders.json | jq --argjson filters "${{ steps.changes.outputs.changes }}" 'map(select(.folder as $f | $filters | any(. == ($f | split("/")[0]))))' > filtered_folders.json
+
+          echo "Full folder List JSON"
+          cat all_folders.json
+
+          echo "Filtered folder List JSON"
+          cat filtered_folders.json
 
-          echo "Folder List JSON"
-          cat folders.json
+          exit 1
 
-      - name: Generate go docs for all projects
+      - name: Generate go docs for changed projects
         shell: bash
         env:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}