def vm_execwait(self, cmd, env=None):
"""As above, a function to encapsulate command execution via Popen.
vm_execwait executes the given cmd list, waits for the process to finish,
and returns the return code of the process. STDOUT and STDERR are stored
in given parameters.
Parameters:
(cmd as above)
Returns:
ret - The return value of the executed command
out - The STDOUT of the executed command
err - The STDERR of the executed command
The return of this function is a 3-tuple
"""
out = ""
err = ""
try:
sp = Popen(cmd, shell=False,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
if not utilities.check_popen_timeout(sp):
(out, err) = sp.communicate(input=None)
else:
log.warning("Process %s timed out! cmd was %" % (sp.pid, " ".join(cmd)))
return (sp.returncode, out, err)
except OSError, e:
try:
log.error("Problem running %s, got errno %d \"%s\"" % (string.join(cmd, " "), e.errno, e.strerror))
except:
log.error("Problem running command, OSError.")
return (-1, "", "")
def vm_execwait(self, cmd, env=None):
"""As above, a function to encapsulate command execution via Popen.
vm_execwait executes the given cmd list, waits for the process to finish,
and returns the return code of the process. STDOUT and STDERR are stored
in given parameters.
Parameters:
(cmd as above)
Returns:
ret - The return value of the executed command
out - The STDOUT of the executed command
err - The STDERR of the executed command
The return of this function is a 3-tuple
"""
out = ""
err = ""
try:
sp = Popen(cmd,
executable=config.workspace_path,
shell=False,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env)
if not utilities.check_popen_timeout(sp):
(out, err) = sp.communicate(input=None)
else:
log.warning("Process %s timed out! cmd was %" %
(sp.pid, " ".join(cmd)))
return (sp.returncode, out, err)
except OSError, e:
log.error("Problem running %s, got errno %d \"%s\"" %
(string.join(cmd, " "), e.errno, e.strerror))
return (-1, "", "")
def vm_exec_silent(self, cmd, env=None):
"""
vm_exec_silent executes a given command list, and discards the output
parameter: cmd -- a list of a command and arguments
returns: the return value of the command that was run
"""
out = ""
err = ""
try:
sp = Popen(cmd,
executable=config.workspace_path,
shell=False,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env)
if not utilities.check_popen_timeout(sp):
(out, err) = sp.communicate(input=None)
else:
log.warning("Process %s timed out! cmd was %" %
(sp.pid, " ".join(cmd)))
return sp.returncode
except OSError, e:
log.error("Problem running %s, got errno %d \"%s\"" %
(string.join(cmd, " "), e.errno, e.strerror))
return -1
def vm_exec_silent(self, cmd, env=None):
"""
vm_exec_silent executes a given command list, and discards the output
parameter: cmd -- a list of a command and arguments
returns: the return value of the command that was run
"""
out = ""
err = ""
try:
sp = Popen(cmd, executable=config.workspace_path, shell=False,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
if not utilities.check_popen_timeout(sp):
(out, err) = sp.communicate(input=None)
else:
log.warning("Process %s timed out! cmd was %" % (sp.pid, " ".join(cmd)))
return sp.returncode
except OSError, e:
log.error("Problem running %s, got errno %d \"%s\"" % (string.join(cmd, " "), e.errno, e.strerror))
return -1
