fix: support aarch64 platform value for Python

packaging/pypi/lefthook/main.py

@@ -3,11 +3,22 @@
 import platform
 import subprocess
 
+ISSUE_URL = "https://github.com/evilmartians/lefthook/issues/new/choose"
+ARCH_MAPPING = {
+    'amd64': 'x86_64',
+    'aarch64': 'arm64',
+}
+
 def main():
     os_name = platform.system().lower()
+    arch = platform.machine().lower()
+    arch = ARCH_MAPPING.get(arch, arch)
     ext = os_name == "windows" and ".exe" or ""
-    arch = platform.machine()
     subfolder = f"lefthook-{os_name}-{arch}"
     executable = os.path.join(os.path.dirname(__file__), "bin", subfolder, "lefthook"+ext)
+    if not os.path.isfile(executable):
+        print(f"Couldn't find binary {executable}. Please create an issue: {ISSUE_URL}")
+        return 1
+
     result = subprocess.run([executable] + sys.argv[1:])
     return result.returncode

packaging/pypi/setup.py

@@ -9,7 +9,7 @@
     author='Evil Martians',
     author_email='lefthook@evilmartians.com',
     url='https://github.com/evilmartians/lefthook',
-    description='A single dependency-free binary to manage all your git hooks that works with any language in any environment, and in all common team workflows',
+    description='Git hooks manager. Fast, powerful, simple.',
     long_description=long_description,
     long_description_content_type="text/markdown",
     packages=find_packages(),