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find the intersections of committers to various git projects
# python3 linux llvm-project gcc binutils-gdb
import argparse
import pygit2
def parse_args():
parser = argparse.ArgumentParser(description="Find kernel toolchain devs")
parser.add_argument("kernel_dir", help="A git checkout of the Linux Kernel")
parser.add_argument("toolchain_dir", help="A git checkout of a toolchain",
return parser.parse_args()
def find_author_set(git_dir):
print("Finding author set for ", git_dir)
repo = pygit2.Repository(git_dir)
last = repo[]
devs = set()
for commit in repo.walk(
author = "%s <%s>" % (,
# break
return devs
def find(kernel_dir, toolchain_dirs):
kernel_devs = find_author_set(kernel_dir)
toolchains_devs = [find_author_set(toolchain_dir) for toolchain_dir in toolchain_dirs]
whole_set = set()
for toolchain_devs in toolchains_devs:
intersection = kernel_devs & toolchain_devs
whole_set &= intersection
print(len(intersection), intersection)
print(len(whole_set), whole_set)
if __name__ == "__main__":
args = parse_args()
find(args.kernel_dir, args.toolchain_dir)
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