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import os
import subprocess
from collections import Counter
CONFIG_FILE_EXTENSIONS = (".json", ".yml", ".yaml", ".ini", ".conf", ".toml")
def is_text_file(filepath):
# Check for binary file by scanning for null bytes.
try:
with open(filepath, "rb") as f:
chunk = f.read(4096)
if b"\0" in chunk:
return False
return True
except Exception:
return False
def should_skip_file(path):
base = os.path.basename(path)
# Skip dotfiles and dotdirs
if base.startswith("."):
return True
# Skip config files by extension
if base.lower().endswith(CONFIG_FILE_EXTENSIONS):
return True
return False
def get_tracked_files():
try:
output = subprocess.check_output(["git", "ls-files"], text=True)
files = output.strip().split("\n")
files = [f for f in files if f and os.path.isfile(f)]
return files
except subprocess.CalledProcessError:
print("Error: Are you in a git repository?")
return []
def main():
files = get_tracked_files()
email_counter = Counter()
total_lines = 0
for file in files:
if should_skip_file(file):
continue
if not is_text_file(file):
continue
try:
blame = subprocess.check_output(
["git", "blame", "-e", file], text=True, errors="replace"
)
for line in blame.splitlines():
# The email always inside <>
if "<" in line and ">" in line:
try:
email = line.split("<")[1].split(">")[0].strip()
except Exception:
continue
email_counter[email] += 1
total_lines += 1
except subprocess.CalledProcessError:
continue
for email, lines in email_counter.most_common():
percent = (lines / total_lines * 100) if total_lines else 0
print(f"{email}: {lines}/{total_lines} {percent:.2f}%")
if __name__ == "__main__":
main()
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