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#!/usr/bin/env python3
"""
Fix submodule upstream URLs. This ensures that CI builds of GHC forks
clone their submodules from its usual location. Otherwise users would need to
fork all submodules before their CI builds would succeed.
"""
from pathlib import Path
import re
x = open('.gitmodules').read()
x = re.sub(r"url *= *\.\.", "url = https://gitlab.haskell.org/ghc", x)
open('.gitmodules', 'w').write(x)
import subprocess
def get_configs(config_file):
args = ['git', 'config', '-f', config_file.as_posix(), '--list']
out = subprocess.check_output(args)
configs = {}
for line in out.decode('UTF-8').split('\n'):
if '=' in line:
k,v = line.split('=')
configs[k] = v
return configs
def set_config(config_file, key, value):
args = ['git', 'config', '-f', config_file.as_posix(), '--replace', key, value]
subprocess.check_call(args)
upstreams = {
'utils/haddock': 'https://github.com/haskell/haddock'
}
modules_config = Path('.gitmodules')
def main():
for k,v in get_configs(modules_config).items():
match = re.match('submodule\.(.+)\.url', k)
if match is not None:
submod = match.group(1)
if submod in upstreams:
url = upstreams[submod]
else:
url = re.sub('\.\.', 'https://gitlab.haskell.org/ghc', v)
print('Using {submod} from {url}'.format(submod=submod, url=url))
set_config(modules_config, k, url)
if __name__ == '__main__':
main()
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