Update tagging logic and add flake8 linter (#365)

.github/workflows/build.yaml

@@ -65,7 +65,7 @@ jobs:
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=sha,prefix=,suffix=,format=short
-            type=raw,value=latest
+            type=raw,value=main,enable=${{ github.ref == 'refs/heads/main' }}
       
       - name: Create a hash from tags
         env:

.github/workflows/server_tests.yaml

@@ -16,11 +16,28 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - name: Adding actions/checkout@v2
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
           python-version: "3.10"
+      - name: Get changed files
+        id: changed_files
+        run: |
+          echo "files=$(git diff --name-only --diff-filter=ACMRT ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep -E '*.py$' | tr '\n' ' ')"
+          echo "files=$(git diff --name-only --diff-filter=ACMRT ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep -E '*.py$' | tr '\n' ' ')" >> $GITHUB_OUTPUT
+
+      - name: Run flake8 on changed files
+        if: steps.changed_files.outputs.files != ''
+        run: |
+          pip install flake8
+          echo running linter on: ${{ steps.changed_files.outputs.files }}
+          flake8 ${{ steps.changed_files.outputs.files }}
+
       - name: Install Protoc
         uses: arduino/setup-protoc@v1
       - name: Filter test dependencies

.pre-commit-config.yaml

@@ -0,0 +1,18 @@
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v3.4.0  # Use the latest revision
+  hooks:
+    - id: trailing-whitespace
+    - id: end-of-file-fixer
+    - id: check-yaml
+- repo: https://github.com/psf/black
+  rev: 24.2.0
+  hooks:
+  - id: black
+    name: Format code
+    args:
+      - --line-length=120
+- repo: https://github.com/pycqa/flake8
+  rev: 7.0.0
+  hooks:
+  - id: flake8