def filter_output(srcs, dests):
"""Transfer data from file descriptors in srcs to the corresponding
file descriptors in dests print_clean_line until all of the srcs
have closed.
"""
global sep_rx
assert all(type(x) in int_types for x in srcs)
assert all(type(x) in int_types for x in srcs)
assert len(srcs) == len(dests)
srcs = tuple(srcs)
dest_for = dict(zip(srcs, dests))
pending = {}
pending_ex = None
try:
while srcs:
ready_fds, _, _ = select.select(srcs, [], [])
width = tty_width()
for fd in ready_fds:
buf = os.read(fd, 4096)
dest = dest_for[fd]
if not buf:
srcs = tuple([x for x in srcs if x is not fd])
print_clean_line(dest, pending.pop(fd, []), width)
else:
split = sep_rx.split(buf)
while len(split) > 1:
content, sep = split[:2]
split = split[2:]
print_clean_line(dest,
pending.pop(fd, []) + [content],
width,
sep)
assert len(split) == 1
if split[0]:
pending.setdefault(fd, []).extend(split)
except BaseException as ex:
pending_ex = add_ex_ctx(add_ex_tb(ex), pending_ex)
try:
# Try to finish each of the streams
for fd, pending_items in compat.items(pending):
dest = dest_for[fd]
width = tty_width()
try:
print_clean_line(dest, pending_items, width)
except (EnvironmentError, EOFError) as ex:
pending_ex = add_ex_ctx(add_ex_tb(ex), pending_ex)
except BaseException as ex:
pending_ex = add_ex_ctx(add_ex_tb(ex), pending_ex)
if pending_ex:
raise pending_ex
def usage(argspec, width=None):
if not width:
width = tty_width()
usage, preamble, groups = argspec[0], argspec[1], argspec[2:]
msg = []
msg.append(textwrap.fill(usage, width=width, subsequent_indent=' '))
msg.append('\n\n')
msg.append(textwrap.fill(preamble.replace('\n', ' '), width=width))
msg.append('\n')
for group_name, group_args in groups:
msg.extend(['\n', group_name, '\n'])
msg.extend(render_opts(group_args, width=width))
return ''.join(msg)
def filter_output(src_out, src_err, dest_out, dest_err):
"""Transfer data from src_out to dest_out and src_err to dest_err via
print_clean_line until src_out and src_err close."""
global sep_rx
assert not isinstance(src_out, bool)
assert not isinstance(src_err, bool)
assert not isinstance(dest_out, bool)
assert not isinstance(dest_err, bool)
assert src_out is not None or src_err is not None
assert (src_out is None) == (dest_out is None)
assert (src_err is None) == (dest_err is None)
pending = {}
pending_ex = None
try:
fds = tuple([x for x in (src_out, src_err) if x is not None])
while fds:
ready_fds, _, _ = select.select(fds, [], [])
width = tty_width()
for fd in ready_fds:
buf = os.read(fd, 4096)
dest = dest_out if fd == src_out else dest_err
if not buf:
fds = tuple([x for x in fds if x is not fd])
print_clean_line(dest, pending.pop(fd, []), width)
else:
split = sep_rx.split(buf)
if len(split) > 2:
while len(split) > 1:
content, sep = split[:2]
split = split[2:]
print_clean_line(dest,
pending.pop(fd, []) + [content],
width,
sep)
else:
assert(len(split) == 1)
pending.setdefault(fd, []).extend(split)
except BaseException as ex:
pending_ex = chain_ex(add_ex_tb(ex), pending_ex)
try:
# Try to finish each of the streams
for fd, pending_items in compat.items(pending):
dest = dest_out if fd == src_out else dest_err
try:
print_clean_line(dest, pending_items, width)
except (EnvironmentError, EOFError) as ex:
pending_ex = chain_ex(add_ex_tb(ex), pending_ex)
except BaseException as ex:
pending_ex = chain_ex(add_ex_tb(ex), pending_ex)
if pending_ex:
raise pending_ex
def render_opts(opts, width=None):
if not width:
width = tty_width()
result = []
for args, desc in opts:
result.append(textwrap.fill(args, width=width,
initial_indent=(' ' * 2),
subsequent_indent=(' ' * 4)))
result.append('\n')
result.append(textwrap.fill(desc, width=width,
initial_indent=(' ' * 6),
subsequent_indent=(' ' * 6)))
result.append('\n')
return result
def filter_output(src_out, src_err, dest_out, dest_err):
"""Transfer data from src_out to dest_out and src_err to dest_err via
print_clean_line until src_out and src_err close."""
global sep_rx
assert not isinstance(src_out, bool)
assert not isinstance(src_err, bool)
assert not isinstance(dest_out, bool)
assert not isinstance(dest_err, bool)
assert src_out is not None or src_err is not None
assert (src_out is None) == (dest_out is None)
assert (src_err is None) == (dest_err is None)
pending = {}
pending_ex = None
try:
fds = tuple([x for x in (src_out, src_err) if x is not None])
while fds:
ready_fds, _, _ = select.select(fds, [], [])
width = tty_width()
for fd in ready_fds:
buf = os.read(fd, 4096)
dest = dest_out if fd == src_out else dest_err
if not buf:
fds = tuple([x for x in fds if x is not fd])
print_clean_line(dest, pending.pop(fd, []), width)
else:
split = sep_rx.split(buf)
if len(split) > 2:
while len(split) > 1:
content, sep = split[:2]
split = split[2:]
print_clean_line(dest,
pending.pop(fd, []) + [content],
width, sep)
else:
assert (len(split) == 1)
pending.setdefault(fd, []).extend(split)
except BaseException as ex:
pending_ex = chain_ex(add_ex_tb(ex), pending_ex)
try:
# Try to finish each of the streams
for fd, pending_items in compat.items(pending):
dest = dest_out if fd == src_out else dest_err
try:
print_clean_line(dest, pending_items, width)
except (EnvironmentError, EOFError) as ex:
pending_ex = chain_ex(add_ex_tb(ex), pending_ex)
except BaseException as ex:
pending_ex = chain_ex(add_ex_tb(ex), pending_ex)
if pending_ex:
raise pending_ex
else:
# running from the src directory without being installed first
cmdpath = os.path.join(exepath, 'cmd')
libpath = os.path.join(exepath, 'lib')
resourcepath = libpath
sys.path[:0] = [libpath]
os.environ['PYTHONPATH'] = libpath + ':' + os.environ.get('PYTHONPATH', '')
os.environ['BUP_MAIN_EXE'] = os.path.abspath(exe)
os.environ['BUP_RESOURCE_PATH'] = resourcepath
from bup import helpers
from bup.compat import wrap_main
from bup.helpers import atoi, columnate, debug1, log, tty_width
# after running 'bup newliner', the tty_width() ioctl won't work anymore
os.environ['WIDTH'] = str(tty_width())
def usage(msg=""):
log('Usage: bup [-?|--help] [-d BUP_DIR] [--debug] [--profile] '
'<command> [options...]\n\n')
common = dict(
ftp='Browse backup sets using an ftp-like client',
fsck='Check backup sets for damage and add redundancy information',
fuse='Mount your backup sets as a filesystem',
help='Print detailed help for the given command',
index='Create or display the index of files to back up',
on='Backup a remote machine to the local one',
restore='Extract files from a backup set',
save='Save files into a backup set (note: run "bup index" first)',
tag='Tag commits for easier access',
# running from the src directory without being installed first
cmdpath = os.path.join(exepath, 'cmd')
libpath = os.path.join(exepath, 'lib')
resourcepath = libpath
sys.path[:0] = [libpath]
os.environ['PYTHONPATH'] = libpath + ':' + os.environ.get('PYTHONPATH', '')
os.environ['BUP_MAIN_EXE'] = os.path.abspath(exe)
os.environ['BUP_RESOURCE_PATH'] = resourcepath
from bup import helpers
from bup.helpers import atoi, columnate, debug1, log, tty_width
# after running 'bup newliner', the tty_width() ioctl won't work anymore
os.environ['WIDTH'] = str(tty_width())
def usage(msg=""):
log('Usage: bup [-?|--help] [-d BUP_DIR] [--debug] [--profile] '
'<command> [options...]\n\n')
common = dict(
ftp = 'Browse backup sets using an ftp-like client',
fsck = 'Check backup sets for damage and add redundancy information',
fuse = 'Mount your backup sets as a filesystem',
help = 'Print detailed help for the given command',
index = 'Create or display the index of files to back up',
on = 'Backup a remote machine to the local one',
restore = 'Extract files from a backup set',
save = 'Save files into a backup set (note: run "bup index" first)',
tag = 'Tag commits for easier access',
web = 'Launch a web server to examine backup sets',
