workflows: Added commit message formating

Signed-off-by: Lorenzo Vagliano

.github/workflows/pre-commit.yml

@@ -24,4 +24,3 @@ jobs:
 
       - name: Run pre-commit
         uses: pre-commit/[email protected]
-

.github/workflows/pull-request-main.yml

@@ -3,7 +3,7 @@ name: Pull request main
 on:
   pull_request_target:
     branches: [main]
-    paths-ignore: [ "docs/**" ]
+    paths-ignore: ["docs/**"]
 
 jobs:
   test:
@@ -17,4 +17,3 @@ jobs:
     with:
       ref: ${{ github.event.pull_request.head.sha }}
     secrets: inherit
-

.gitlint

@@ -0,0 +1,11 @@
+[general]
+ignore=body-is-missing
+extra-path=./scripts/gitlint_rules/
+debug=true
+verbosity=3
+
+[title-max-length]
+line-length=50
+
+[body-max-line-length]
+line-length=72

.pre-commit-config.yaml

@@ -7,6 +7,7 @@ repos:
     rev: "v2.7.1"
     hooks:
       - id: prettier
+        stages: [commit]
   - repo: https://github.com/pycqa/isort
     rev: "5.12.0"
     hooks:
@@ -22,3 +23,11 @@ repos:
       - id: check-merge-conflict
       - id: end-of-file-fixer
       - id: trailing-whitespace
+  - repo: https://github.com/jorisroovers/gitlint
+    rev: "v0.17.0"
+    hooks:
+      - id: gitlint
+        language: python
+        entry: gitlint
+        stages: [commit-msg]
+        args: [--msg-filename]

scripts/gitlint_rules/rules.py

@@ -0,0 +1,39 @@
+import re
+
+from gitlint.rules import CommitRule, RuleViolation
+
+class SignedOffBy(CommitRule):
+    """This rule will enforce that each commit contains a "Signed-off-by" line."""
+
+    name = "body-requires-signed-off-by"
+    id = "Workflows1"
+
+    def validate(self, commit):
+        for line in commit.message.body:
+            if line.startswith("Signed-off-by"):
+                return
+
+        msg = "Body does not contain a 'Signed-Off-By' line"
+        return [RuleViolation(self.id, msg, line_nr=1)]
+
+
+class ApprovedSubject(CommitRule):
+    """Validate subject of each commit.
+
+    This rule will enforce that each commit starts with a "module: text" format.
+    The 'module' can be any alphanumeric word, and the message must start with a colon followed by a space.
+    """
+
+    name = "approved-subject-in-title"
+    id = "Workflows2"
+
+    MODULE_PATTERN = re.compile(r"^[a-zA-Z0-9_-]+: .+")
+
+    def validate(self, commit):
+        title = commit.message.title
+
+        if not self.MODULE_PATTERN.match(title):
+            msg = "Subject does not follow 'module: text' format"
+            return [RuleViolation(self.id, msg, line_nr=1)]
+
+        return