Introduce automatic linting with Github workflows (#251)

* Add linters

* use other setup-python version

* Use string instead

* Add more linting

* Fix tests

* minor changes

---------

Co-authored-by: Marcus Valtonen Örnhag <marcus.valtonen.ornhag@ericsson.com>

pyproject.toml

@@ -83,5 +83,38 @@ artifacts = ["/backend/fastrtc/templates", "*.pyi"]
 packages = ["/backend/fastrtc"]
 
 [tool.ruff]
+src = ["demo", "backend/fastrtc"]
 target-version = "py310"
 extend-exclude = ["demo/phonic_chat", "demo/nextjs_voice_chat"]
+
+[tool.ruff.format]
+exclude = ["*.pyi"]
+quote-style = "double"
+indent-style = "space"
+skip-magic-trailing-comma = false
+line-ending = "auto"
+
+[tool.ruff.lint]
+select = [
+  "E",
+  "F",
+  "W",
+  "Q",
+  "I",
+]
+
+# These can be turned on when the framework is more mature (Too many errors right now)
+exclude = [
+  "D",
+  "UP"
+]
+
+# Avoid enforcing line-length violations (`E501`)
+ignore = ["E501"]
+
+[tool.ruff.lint.pydocstyle]
+convention = "google"
+
+[tool.ruff.lint.per-file-ignores]
+"__init__.py" = ["E402"]
+"demo/talk_to_smolagents/app.py" = ["W291"]