fix: check only first line for ignoring auto generated commits (#80)

Author: aj3sh

src/commitlint/constants.py

@@ -25,5 +25,6 @@
     r"^Merge remote-tracking branch(\s*)(.*)$|"
     r"^Automatic merge(.*)$|"
     r"^Auto-merged (.*?) into (.*)$|"
-    r"[Bb]ump [^\s]+ from [^\s]+ to [^\s]+"
+    r"[Bb]ump [^\s]+ from [^\s]+ to [^\s]+|"
+    r"^[Ii]nitial [Cc]ommit$"
 )

src/commitlint/git_helpers.py

@@ -34,6 +34,7 @@ def get_commit_message_of_hash(commit_hash: str) -> str:
             stderr=subprocess.PIPE,
         ).strip()
         console.verbose(commit_message)
+        console.verbose("execute complete")
 
         return commit_message
     except subprocess.CalledProcessError as ex:
@@ -91,6 +92,7 @@ def get_commit_messages_of_hash_range(
             stderr=subprocess.PIPE,
         )
         console.verbose(commit_messages_output)
+        console.verbose("execute complete")
 
         commit_messages = commit_messages_output.split(f"{delimiter}\n")
         return [from_commit_message] + [

src/commitlint/linter/utils.py

@@ -21,7 +21,8 @@ def is_ignored(commit_message: str) -> bool:
     Returns:
         bool: True if the commit message should be ignored, False otherwise.
     """
-    return bool(re.match(IGNORE_COMMIT_PATTERNS, commit_message))
+    commit_first_line = commit_message.splitlines()[0]
+    return bool(re.match(IGNORE_COMMIT_PATTERNS, commit_first_line))
 
 
 def remove_comments(commit_message: str) -> str:

tests/fixtures/linter.py

@@ -47,6 +47,11 @@
     ("feat!: breaking feature", True, []),
     # ignored commits (success)
     ("Merge pull request #123", True, []),
+    (
+        "Merge branch 'main' into release\nthis is second line",
+        True,
+        [],
+    ),
     ("Bump urllib3 from 1.26.5 to 1.26.17", True, []),
     ("Bump github.com/ollama/ollama from 0.1.48 to 0.2.0", True, []),
     ("bump @babel/traverse from 7.22.17 to 7.24.0", True, []),
@@ -55,6 +60,8 @@
         True,
         [],
     ),
+    ("Initial commit", True, []),
+    ("initial Commit", True, []),
     # incorrect format check
     ("feat add new feature", False, [INCORRECT_FORMAT_ERROR]),
     # header length check