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import functools
import logging
import os
import subprocess
def quoted_cmd(args):
ret = []
needs_single = '!$(`"\n'
needs_double = " *&'"
for arg in args:
singles = [i for i in needs_single if i in arg]
doubles = [i for i in needs_double if i in arg]
if len(singles) + len(doubles) == 0:
ret.append(arg)
continue
if len(singles):
arg.replace("'", "'\\''")
ret.append("'%s'" % arg)
else:
ret.append('"%s"' % arg)
return ' '.join(ret)
def runq(*args, **kwargs):
kwargs.update({
'stdout': subprocess.DEVNULL,
'stderr': subprocess.DEVNULL,
'verbose_on_failure': False,
})
return run(*args, **kwargs)
def run(
args,
env=None,
check=True,
shell=False,
input=None,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE,
stdin=subprocess.DEVNULL,
verbose_on_failure=True,
rcs=None,
decode=True,
):
rcs = rcs or []
if shell:
if isinstance(args, str):
pcmd = quoted_cmd(["sh", '-c', args])
else:
pcmd = quoted_cmd(["sh", '-c'] + args)
else:
pcmd = quoted_cmd(args)
try:
logging.debug("Executing: %s", pcmd)
if input:
cp = subprocess.run(
args, env=env, check=check, shell=shell,
input=input,
stdout=stdout, stderr=stderr)
else:
cp = subprocess.run(
args, env=env, check=check, shell=shell,
stdout=stdout, stderr=stderr, stdin=stdin)
ret = cp
except subprocess.CalledProcessError as e:
not_captured = "[Not captured]\n"
out = not_captured
err = not_captured
if stdout is subprocess.PIPE:
out = e.stdout.decode(errors='replace')
if stderr is subprocess.PIPE:
err = e.stderr.decode(errors='replace')
if e.returncode not in rcs:
if verbose_on_failure:
logging.error("Command exited %d: %s", e.returncode, pcmd)
logging.error(
"stdout: %s",
out.replace("\n", "\n "),
)
logging.error(
"stderr: %s",
err.replace("\n", "\n "),
)
raise e
ret = e
pass
if decode:
return (
decode_binary(ret.stdout),
decode_binary(ret.stderr),
)
else:
return (ret.stdout, ret.stderr)
def decode_binary(binary, verbose=True):
try:
return binary if binary is None else binary.decode('utf-8')
except UnicodeDecodeError as e:
if verbose:
logging.warning("Failed to decode blob: %s", e)
logging.warning("blob=%s", binary.decode(errors='replace'))
return binary.decode('utf-8', errors='replace')
def run_quilt(args, env=None, **kwargs):
"""execute quilt without reading any configuration files
Params:
args: A list of string arguments to pass to quilt.
env: A namespace object to use as the environment. If not specified,
the calling environment is inherited.
kwargs: passed directly to run().
Returns:
A tuple of stdout, stderr from the quilt process.
Raises a subprocess.CalledProcessError exception on error.
"""
cmd = ['quilt', '--quiltrc', '-'] + args
return run(cmd, env=env, **kwargs)
def run_gbp(args, env=None, **kwargs):
"""execute gbp without reading any configuration files
Params:
args: A list of string arguments to pass to gbp.
env: A namespace object to use as the environment. If not specified,
the calling environment is inherited.
kwargs: passed directly to run().
Returns:
A tuple of stdout, stderr from the gbp process.
Raises a subprocess.CalledProcessError exception on error.
"""
cmd = ['gbp'] + args
if env:
env_no_gbp_conf = env.copy()
else:
env_no_gbp_conf = os.environ.copy()
env_no_gbp_conf['GBP_CONF_FILES'] = '/dev/null'
return run(cmd, env=env_no_gbp_conf, **kwargs)
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