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the -u option is not necessary on a rootless environment

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This commit is contained in:
Fabrice Flore-Thébault 2020-06-03 17:40:22 +02:00
parent 7c16c3e53f
commit 5c1cd8168a
1 changed files with 12 additions and 4 deletions
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16
pre_commit/languages/docker.py
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@ -79,11 +79,19 @@ def install_environment(
def get_docker_user() -> Tuple[str, ...]: # pragma: win32 no cover
try:
ver_cmd = 'docker', '--version'
if subprocess.check_output(ver_cmd).startswith(b'podman version '):
return ()
else:
rootless = False
output = subprocess.check_output(('docker', 'system', 'info'), text=True)
for line in output.splitlines():
# rootless docker has "rootless"
# rootless podman has "rootless: true"
if line.strip().startswith('rootless'):
if not 'false' in line:
rootless = True
break
if not rootless:
return ('-u', f'{os.getuid()}:{os.getgid()}')
else:
return()
except AttributeError:
return ()