Smart CI for docs (#21021)

* Handle Smart CI for docs

* Remove path filters

* Fix quotes

* Fix logic

* Revert unneeded change

* Add md_files_only to components configuration

* Get rid of custom output

* Try to fix condition

* Add manual handling of some docs changes

* Remove helper label

.github/actions/smart-ci/smart_ci.py

@@ -189,6 +189,26 @@ def main():
     cfg = ComponentConfig(components_config, schema, all_possible_components)
     affected_components = cfg.get_affected_components(changed_component_names)
 
+    # We don't need to run workflow if changes were only in documentation
+    # This is the case when we have no product labels set except "docs"
+    # or only if md files were matched (the latter covers cases where *.md is outside docs directory)
+    only_docs_changes = False
+    if args.pr and not run_full_scope:
+        # We don't want to add helper labels to labeler config for now, so handling it manually
+        docs_label_only = changed_component_names - {'docs'} == set()
+        if docs_label_only:
+            only_docs_changes = True
+        else:
+            # To avoid spending extra API requests running step below only if necessary
+            changed_files = gh_api.pulls.list_files(args.pr)
+            doc_suffixes = ['.md', '.rst', '.png', '.jpg', '.svg']
+            only_docs_changes = all([Path(f.filename).suffix in doc_suffixes for f in changed_files])
+            logger.debug(f"doc files only: {only_docs_changes}")
+
+    if only_docs_changes:
+        logger.info(f"Changes are documentation only, workflow may be skipped")
+        affected_components['docs_only'] = ComponentConfig.FullScope
+
     # Syntactic sugar for easier use in GHA pipeline
     affected_components_output = {name: {s: True for s in scope} for name, scope in affected_components.items()}
     set_github_output("affected_components", json.dumps(affected_components_output))

.github/workflows/linux.yml

@@ -5,21 +5,7 @@ on:
     - cron: '0 0 * * 3,6'
   workflow_dispatch:
   pull_request:
-    paths:
-      - '**'
-      - '!**/docs/**'
-      - '!docs/**'
-      - 'docs/snippets/**'
-      - '!**/**.md'
-      - '!**.md'
   push:
-    paths:
-      - '**'
-      - '!docs/**'
-      - '!**/docs/**'
-      - 'docs/snippets/**'
-      - '!**/**.md'
-      - '!**.md'
     branches:
       - master
       - 'releases/**'
@@ -60,6 +46,7 @@ jobs:
         shell: bash
 
   Build:
+    needs: Smart_CI
     timeout-minutes: 150
     defaults:
       run:
@@ -85,6 +72,7 @@ jobs:
       BUILD_DIR: /__w/openvino/openvino/openvino_build
       SCCACHE_AZURE_KEY_PREFIX: ubuntu20_x86_64_Release
       ONNX_RUNTIME_UTILS: /__w/openvino/openvino/openvino/.ci/azure/ci_utils/onnxruntime
+    if: "!fromJSON(needs.smart_ci.outputs.affected_components).docs_only"
 
     steps:
       - name: Install git