doc: adding docstring linting based on ruff (#7463)

* wip: docstrings linting

* set ruff rules

.github/workflows/docstrings_linting.yml

@@ -0,0 +1,20 @@
+name: run docstrings linting
+
+on:
+  push:
+    branches:
+      - docstrings-linting
+
+jobs:
+  docstrings-linting:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Hatch
+        run: pip install hatch=="1.9.3"
+
+      - name: ruff docstrings linting
+        run: hatch run ruff check haystack

haystack/core/pipeline/pipeline.py

@@ -851,7 +851,7 @@ class Pipeline:
                         },
                     ) as span:
                         span.set_content_tag("haystack.component.input", last_inputs[name])
-
+                        logger.info("Running component {name}", name=name)
                         logger.info("Running component {component_name}", component_name=name)
                         res = comp.run(**last_inputs[name])
                         self.graph.nodes[name]["visits"] += 1

pyproject.toml

@@ -296,14 +296,14 @@ ignore_missing_imports = true
 [tool.ruff]
 line-length = 301
 target-version = "py38"
+exclude= ["test"]
+
 
 [tool.ruff.lint]
 select = [
-  "AIR",    # Airflow
   "ASYNC",  # flake8-async
   "C4",     # flake8-comprehensions
   "C90",    # McCabe cyclomatic complexity
-  "DJ",     # flake8-django
   "E501",   # Long lines
   "EXE",    # flake8-executable
   "F",      # Pyflakes
@@ -316,12 +316,19 @@ select = [
   "T10",    # flake8-debugger
   "W",      # pycodestyle
   "YTT",    # flake8-2020
-  "I"       # isort
-  # "E",    # pycodestyle
-  # "NPY",  # NumPy-specific rules
-  # "PD",   # pandas-vet
-  # "PT",   # flake8-pytest-style
-  # "UP",   # pyupgrade
+  "I",       # isort
+  # built-in shadowing
+  "A001",	# builtin-variable-shadowing
+  "A002",	# builtin-argument-shadowing
+  "A003",	# builtin-attribute-shadowing
+  # docstring rules
+  "D102",   # Missing docstring in public method
+  "D103",   # Missing docstring in public function
+  "D209",   # Closing triple quotes go to new line
+  "D205",   # 1 blank line required between summary line and description
+  "D213",   # summary lines must be positioned on the second physical line of the docstring
+  "D417",   # undocumented-parameter
+  "D419",   # undocumented-returns
 ]
 
 ignore = [