Tools/Scripts/hooks/pre-commit

#!/usr/bin/env {{ python }}

import os
import subprocess
import sys

LOCATION = r'{{ location }}'
SCRIPTS = os.path.dirname(os.path.dirname(LOCATION))


def files(staged=True):
    try:
        lines = []
        for line in subprocess.check_output(
            ['git', 'diff', '--name-only'] + (['--staged'] if staged else []),
            encoding='utf-8',
        ).splitlines():
            if line:
                lines.append(line)
        return lines
    except subprocess.CalledProcessError:
        return []


staged = files(staged=True)
unstaged = files(staged=False)

project_files = []
for line in staged or unstaged:
    if line.endswith('pbxproj'):
        project_files.append(line)

if project_files:
    code = subprocess.run(['perl', os.path.join(SCRIPTS, 'sort-Xcode-project-file')] + project_files).returncode
    if staged:
        code += subprocess.run(['git', 'add'] + project_files).returncode
    sys.exit(code)
sys.exit(0)