def system_piped(self, cmd):
"""Call the given cmd in a subprocess, piping stdout/err
Parameters
----------
cmd : str
Command to execute (can not end in '&', as background processes are
not supported. Should not be a command that expects input
other than simple text.
"""
if cmd.rstrip().endswith('&'):
# this is *far* from a rigorous test
# We do not support backgrounding processes because we either use
# pexpect or pipes to read from. Users can always just call
# os.system() or use ip.system=ip.system_raw
# if they really want a background process.
raise OSError("Background processes not supported.")
# we explicitly do NOT return the subprocess status code, because
# a non-None value would trigger :func:`sys.displayhook` calls.
# Instead, we store the exit_code in user_ns.
# Also, protect system call from UNC paths on Windows here too
# as is done in InteractiveShell.system_raw
if sys.platform == 'win32':
cmd = self.var_expand(cmd, depth=1)
from IPython.utils._process_win32 import AvoidUNCPath
with AvoidUNCPath() as path:
if path is not None:
cmd = 'pushd %s &&%s' % (path, cmd)
self.user_ns['_exit_code'] = system(cmd)
else:
self.user_ns['_exit_code'] = system(self.var_expand(cmd, depth=1))
def target_update(target,deps,cmd):
"""Update a target with a given command given a list of dependencies.
target_update(target,deps,cmd) -> runs cmd if target is outdated.
This is just a wrapper around target_outdated() which calls the given
command if target is outdated."""
if target_outdated(target,deps):
system(cmd)
def target_update(target,deps,cmd):
"""Update a target with a given command given a list of dependencies.
target_update(target,deps,cmd) -> runs cmd if target is outdated.
This is just a wrapper around target_outdated() which calls the given
command if target is outdated."""
if target_outdated(target,deps):
system(cmd)
def page_file(fname, start=0, pager_cmd=None):
"""Page a file, using an optional pager command and starting line.
"""
pager_cmd = get_pager_cmd(pager_cmd)
pager_cmd += " " + get_pager_start(pager_cmd, start)
try:
if os.environ["TERM"] in ["emacs", "dumb"]:
raise EnvironmentError
system(pager_cmd + " " + fname)
except:
try:
if start > 0:
start -= 1
page(open(fname).read(), start)
except:
print "Unable to show file", ` fname `
def page_file(fname, start=0, pager_cmd=None):
"""Page a file, using an optional pager command and starting line.
"""
pager_cmd = get_pager_cmd(pager_cmd)
pager_cmd += " " + get_pager_start(pager_cmd, start)
try:
if os.environ["TERM"] in ["emacs", "dumb"]:
raise EnvironmentError
system(pager_cmd + " " + fname)
except:
try:
if start > 0:
start -= 1
page(open(fname).read(), start)
except:
print("Unable to show file", repr(fname))
def page_file(fname, start=0, pager_cmd=None):
"""Page a file, using an optional pager command and starting line.
"""
pager_cmd = get_pager_cmd(pager_cmd)
pager_cmd += ' ' + get_pager_start(pager_cmd,start)
try:
if os.environ['TERM'] in ['emacs','dumb']:
raise EnvironmentError
system(pager_cmd + ' ' + fname)
except:
try:
if start > 0:
start -= 1
page(open(fname).read(),start)
except:
print('Unable to show file',repr(fname))
def page_file(fname, start=0, pager_cmd=None):
"""Page a file, using an optional pager command and starting line.
"""
pager_cmd = get_pager_cmd(pager_cmd)
pager_cmd += ' ' + get_pager_start(pager_cmd, start)
try:
if os.environ['TERM'] in ['emacs', 'dumb']:
raise EnvironmentError
system(pager_cmd + ' ' + fname)
except:
try:
if start > 0:
start -= 1
page(open(fname).read(), start)
except:
print('Unable to show file', repr(fname))
def test_system(self):
system('python "%s"' % self.fname)
def test_system(self):
status = system('%s "%s"' % (python, self.fname))
self.assertEqual(status, 0)
def test_system_quotes(self):
status = system('%s -c "import sys"' % python)
self.assertEqual(status, 0)
def info():
print('\nSystem volume info:')
system('lshw -class volume,disk -short')
print('\nMount points:')
system('mount | grep /dev/[sm]')
print('\n')
def mount(readOnly):
if readOnly: arg = '-r '
else: arg = ''
system('mount {} /mnt/efi'.format(arg + device + efipart))
system('mount {} /mnt/sys'.format(arg + device + syspart))
def reboot():
system('reboot')
def initDrive():
print 'Clearing the partition table on device {}...'.format(device)
system("sgdisk -Z -o -g {}".format(device))
def unpack():
print 'Unpacking system from folder {}...'.format(folderName)
system('unsquashfs -f -d /mnt/efi {}/efi.sfs'.format(folderName))
system('unsquashfs -f -d /mnt/sys {}/sys.sfs'.format(folderName))
def checkEfi():
system('mount -r {} /mnt/efi'.format(folderName + '/efi.sfs'))
if not os.path.exists('/mnt/efi/EFI'):
raise RuntimeError('Invalid archive file "{}"'.format(folderName +
'/efi.sfs'))
system('umount /mnt/efi')
def isEfiMounted():
system('mountpoint /mnt/efi')
def test_system(self):
system('python "%s"' % self.fname)
def setupSys():
print 'Setting up system partition as {}...'.format(device + syspart)
system("sgdisk -n 2:: {}".format(device))
print ' Formatting...'
system("mkfs.ext4 -F {}".format(device + syspart))
def setupEfi():
print 'Setting up UEFI boot partition as {}...'.format(device + efipart)
system("sgdisk -n 1::+512M {}".format(device))
system("sgdisk -t 1:ef00 {}".format(device))
print ' Formatting...'
system("mkfs.fat -F32 {}".format(device + efipart))
def printPartTable():
system("sgdisk -p {}".format(device))
def test_system(self):
status = system('python "%s"' % self.fname)
self.assertEquals(status, 0)
def test_system(self):
status = system('%s "%s"' % (python, self.fname))
self.assertEqual(status, 0)
def test_system_quotes(self):
status = system('python -c "import sys"')
self.assertEquals(status, 0)
def command():
return system('%s -c "import time; time.sleep(5)"' % python)
def poweroff():
system('poweroff')
def umount():
system('umount ' + device + efipart)
system('umount ' + device + syspart)
def test_system_quotes(self):
status = system('%s -c "import sys"' % python)
self.assertEqual(status, 0)
def pack():
print 'Archiving system into {}...'.format(folderName)
system('mksquashfs /mnt/efi {}/efi.sfs'.format(folderName))
system('mksquashfs /mnt/sys {}/sys.sfs'.format(folderName))
def test_system(self):
status = system('python "%s"' % self.fname)
self.assertEquals(status, 0)
def test_system_quotes(self):
status = system('python -c "import sys"')
self.assertEquals(status, 0)
def checkSys():
system('mount -r {} /mnt/sys'.format(folderName + '/sys.sfs'))
if not os.path.exists('/mnt/sys/etc'):
raise RuntimeError('Invalid archive file "{}"'.format(folderName +
'/sys.sfs'))
system('umount /mnt/sys')
def test_system(self):
status = system(f'{python} "{self.fname}"')
self.assertEqual(status, 0)