From 3317ddfb3a2272792ee83e2750bcca3a90faa8ea Mon Sep 17 00:00:00 2001
From: Ezri Mudde <emudde@infiniot.nl>
Date: Mon, 25 Mar 2024 17:33:01 +0100
Subject: [PATCH] feat: Add support for verbose git messages

---
 conventional_pre_commit/format.py | 10 +++++
 tests/test_format.py              | 67 +++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)

diff --git a/conventional_pre_commit/format.py b/conventional_pre_commit/format.py
index aa25fdc..e79306f 100644
--- a/conventional_pre_commit/format.py
+++ b/conventional_pre_commit/format.py
@@ -54,6 +54,15 @@ def r_autosquash_prefixes():
     return "|".join(AUTOSQUASH_PREFIXES)
 
 
+def r_verbose_diff():
+    """Regex str for verbose diff"""
+    return r"(?P<diff>(^# -* >8 -*$\r?\n)(^# .*$\r?\n)+(diff ){1}(.*\r?\n)*)"
+
+
+def strip_verbose_diff(input):
+    return re.sub(r_verbose_diff(), "", input, flags=re.MULTILINE)
+
+
 def r_comment():
     """Regex str for comment"""
     return r"^#.*\r?\n?"
@@ -77,6 +86,7 @@ def is_conventional(input, types=DEFAULT_TYPES, optional_scope=True):
 
     Optionally provide a list of additional custom types.
     """
+    input = strip_verbose_diff(input)
     input = strip_comments(input)
     types = conventional_types(types)
     pattern = f"^({r_types(types)}){r_scope(optional_scope)}{r_delim()}{r_subject()}{r_body()}"
diff --git a/tests/test_format.py b/tests/test_format.py
index 532b3a6..6b9507b 100644
--- a/tests/test_format.py
+++ b/tests/test_format.py
@@ -151,6 +151,73 @@ def test_strip_comments__spaced():
     assert result.strip() == "feat(scope): message"
 
 
+def test_r_verbose_diff__has_diff():
+    regex = re.compile(format.r_verbose_diff(), re.MULTILINE)
+    input = """# ----------- >8 -----------
+# Some comment
+# Some comment
+diff --git a/file b/file
+"""
+
+    assert regex.match(input)
+
+
+def test_r_verbose_diff__no_diff():
+    regex = re.compile(format.r_verbose_diff(), re.MULTILINE)
+    input = """# ----------- >8 -----------
+# Some comment
+# Some comment
+"""
+
+    assert not regex.match(input)
+
+
+def test_r_verbose_diff__no_extra_comments():
+    regex = re.compile(format.r_verbose_diff(), re.MULTILINE)
+    input = """# ----------- >8 -----------
+diff --git a/file b/file
+"""
+
+    assert not regex.match(input)
+
+
+def test_strip_verbose_diff__has_diff():
+    input = """feat(scope): message
+# Please enter the commit message for your changes.
+
+# These are comments usually added by editors, f.ex. with export EDITOR=vim
+# ----------- >8 -----------
+# Some comment
+# Some comment
+diff --git a/file b/file
+"""
+
+    result = format.strip_verbose_diff(input)
+    assert result.count("\n") == 4
+    assert (
+        result
+        == """feat(scope): message
+# Please enter the commit message for your changes.
+
+# These are comments usually added by editors, f.ex. with export EDITOR=vim
+"""
+    )
+
+
+def test_strip_verbose_diff__no_diff():
+    input = """feat(scope): message
+# Please enter the commit message for your changes.
+
+# These are comments usually added by editors, f.ex. with export EDITOR=vim
+# ----------- >8 -----------
+# Some comment
+# Some comment
+"""
+
+    result = format.strip_verbose_diff(input)
+    assert result == input
+
+
 @pytest.mark.parametrize("type", format.DEFAULT_TYPES)
 def test_is_conventional__default_type(type):
     input = f"{type}: message"