CI: Skip running tests when only docs changes are detected (#225)

* CI: Skip running tests when only docs changes are detected

.github/workflows/get_docs_changes.yml

@@ -0,0 +1,38 @@
+name: get docs changes
+
+on:
+  workflow_call:
+    outputs:
+      changes_outside_docs:
+        description: "Changes outside docs"
+        value: ${{ jobs.get_docs_changes.outputs.changes_outside_docs }}
+
+jobs:
+  get_docs_changes:
+    runs-on: ubuntu-latest
+    outputs:
+      changes_outside_docs: ${{ steps.check_changes.outputs.changes_outside_docs }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Check changes outside docs
+        id: check_changes
+        run: |
+          echo "base.sha: ${{ github.event.pull_request.base.sha }}"
+          echo "head.sha: ${{ github.event.pull_request.head.sha }}"
+          changes_outside_docs=$(
+            git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }} \
+              | grep -v '^docs/' || true
+          )
+          echo $changes_outside_docs
+          if [ -z "$changes_outside_docs" ]; then
+            echo "No changes outside docs. Skipping tests."
+            echo "changes_outside_docs=false" >> $GITHUB_OUTPUT
+          else
+            echo "Changes detected outside docs."
+            echo "changes_outside_docs=true" >> $GITHUB_OUTPUT
+          fi

.github/workflows/lint.yml

@@ -9,9 +9,14 @@ on:
   workflow_dispatch:
 
 jobs:
+  get_docs_changes:
+    uses: ./.github/workflows/get_docs_changes.yml
 
   run_lint:
     name: Runs mypy, flake and bandit
+    needs: get_docs_changes
+    if: needs.get_docs_changes.outputs.changes_outside_docs == 'true'
+
     runs-on: ubuntu-latest
 
     steps:

.github/workflows/test_common.yml

@@ -12,9 +12,13 @@ env:
   RUNTIME__LOG_LEVEL: ERROR
 
 jobs:
+  get_docs_changes:
+    uses: ./.github/workflows/get_docs_changes.yml
 
   run_common:
     name: Tests common dlt code
+    needs: get_docs_changes
+    if: needs.get_docs_changes.outputs.changes_outside_docs == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -25,7 +29,6 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-
       - name: Check out
         uses: actions/checkout@master
 

.github/workflows/test_dbt_runner.yml

@@ -22,9 +22,13 @@ env:
   RUNTIME__LOG_LEVEL: ERROR
 
 jobs:
+  get_docs_changes:
+    uses: ./.github/workflows/get_docs_changes.yml
 
   run_dbt:
     name: Tests dbt runner
+    needs: get_docs_changes
+    if: needs.get_docs_changes.outputs.changes_outside_docs == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -85,4 +89,4 @@ jobs:
           poetry run pytest tests/helpers/dbt_tests --ignore=tests/helpers/dbt_tests/local -m "not forked" -k "(not local)"
         if: runner.os == 'Windows'
         name: Run dbt runner with venv - Windows
-        shell: cmd
+        shell: cmd

.github/workflows/test_destination_bigquery.yml

@@ -18,9 +18,13 @@ env:
   RUNTIME__LOG_LEVEL: ERROR
 
 jobs:
+  get_docs_changes:
+    uses: ./.github/workflows/get_docs_changes.yml
 
   run_loader:
     name: Tests BigQuery loader
+    needs: get_docs_changes
+    if: needs.get_docs_changes.outputs.changes_outside_docs == 'true'
     strategy:
       fail-fast: false
       matrix:

.github/workflows/test_destinations.yml

@@ -20,9 +20,13 @@ env:
   RUNTIME__DLTHUB_TELEMETRY_SEGMENT_WRITE_KEY: TLJiyRkGVZGCi2TtjClamXpFcxAA1rSB
 
 jobs:
+  get_docs_changes:
+    uses: ./.github/workflows/get_docs_changes.yml
 
   run_loader:
     name: test destinations redshift, postgres and duckdb
+    needs: get_docs_changes
+    if: needs.get_docs_changes.outputs.changes_outside_docs == 'true'
     strategy:
       fail-fast: false
       matrix: