TT#160856 add pre-commit

* format yaml files and lint them afterwards
* python rules
* shellcheck

Change-Id: I8a7ca8a81001410e7f026156f94ece1df6c18892

.gitignore

@@ -7,6 +7,7 @@ __pycache__/
 .*.sw?
 .sw?
 .vscode
+.vstags
 \#*\#
 DEADJOE
 

.pre-commit-config.yaml

@@ -0,0 +1,38 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-added-large-files
+  - repo: https://github.com/jumanjihouse/pre-commit-hook-yamlfmt
+    rev: 0.0.11   # or specific tag
+    hooks:
+      - id: yamlfmt
+        args: [--mapping, '2', --sequence, '4', --offset, '2', --width, '150']
+        exclude: |
+          (?x)^(.yamllint)$
+  - repo: https://github.com/adrienverge/yamllint.git
+    rev: v1.26.3
+    hooks:
+      - id: yamllint
+        args: [--format, parsable, --strict]
+  - repo: https://github.com/asottile/reorder_python_imports
+    rev: v2.6.0
+    hooks:
+      - id: reorder-python-imports
+        args: [--py37-plus]
+  - repo: https://github.com/psf/black
+    rev: 21.8b0
+    hooks:
+      - id: black
+  - repo: https://gitlab.com/PyCQA/flake8
+    rev: 3.9.2
+    hooks:
+      - id: flake8
+  - repo: https://github.com/jumanjihouse/pre-commit-hooks
+    rev: 2.1.5
+    hooks:
+      - id: shellcheck

.yamllint

@@ -0,0 +1,9 @@
+---
+extends: default
+rules:
+  line-length:
+    max: 150
+    allow-non-breakable-words: true
+    allow-non-breakable-inline-mappings: false
+  truthy:
+    allowed-values: ['yes', 'no', 'true', 'false']