packaging: setup tooling framework

Add support for linting tools and dependencies management.
The file needed are:

- pyproject.toml. This is used for managing dependencies and configuration
into a single file. At the moment, it is not written to be able to
install this project as a proper package, but it can be changed in the future.

- .pre-commit-config.yaml. This will run Ruff's linter and
formatter via pre-commit.
At the moment, all *py are excluded from pre-commit formatting.

Signed-off-by: Roxana Nicolescu <rnicolescu@ciq.com>

Author: roxanan1996

.pre-commit-config.yaml

@@ -0,0 +1,21 @@
+repos:
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  # Ruff version.
+  rev: v0.14.0
+  hooks:
+    # Run the linter.
+    - id: ruff-check
+      args: [ --fix ]
+    # Run the formatter.
+    - id: ruff-format
+
+exclude: |
+  (?x)^(
+  ciq-cherry-pick.py |
+  check_kernel_commits.py |
+  ciq_helpers.py |
+  jira_pr_check.py |
+  release_config.py |
+  rolling-release-update.py |
+  run_interdiff.py |
+  )$

pyproject.toml

@@ -0,0 +1,26 @@
+# This is not an installable project at the moment.
+# This is used to control dependencies and liter configuration
+[project]
+name = "kernel-src-tree-tools"
+requires-python = ">=3.10"
+readme = "README.md"
+version = "0.0.1"
+dependencies = [
+]
+
+[project.optional-dependencies]
+dev = [
+    "pre-commit",
+    "ruff",
+	]
+
+[tool.ruff]
+line-length = 120
+
+[tool.ruff.lint]
+# Add the `line-too-long` rule to the enforced rule set.
+extend-select = ["E501"]
+
+[tool.setuptools]
+# suppress error: Multiple top-level packages
+py-modules = []