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 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 run_subcmd(subcmd):
c = (do_profile and [sys.executable, '-m', 'cProfile'] or []) + subcmd
if not (fix_stdout or fix_stderr):
os.execvp(c[0], c)
p = None
try:
p = subprocess.Popen(c,
stdout=PIPE if fix_stdout else sys.stdout,
stderr=PIPE if fix_stderr else sys.stderr,
preexec_fn=force_tty,
bufsize=4096,
close_fds=True)
# Assume p will receive these signals and quit, which will
# then cause us to quit.
for sig in (signal.SIGINT, signal.SIGTERM, signal.SIGQUIT):
signal.signal(sig, signal.SIG_IGN)
filter_output(fix_stdout and p.stdout.fileno() or None,
fix_stderr and p.stderr.fileno() or None,
fix_stdout and sys.stdout.fileno() or None,
fix_stderr and sys.stderr.fileno() or None)
return p.wait()
except BaseException as ex:
add_ex_tb(ex)
try:
if p and p.poll() == None:
os.kill(p.pid, signal.SIGTERM)
p.wait()
except BaseException as kill_ex:
raise chain_ex(add_ex_tb(kill_ex), ex)
raise ex
def run_subcmd(subcmd):
c = (do_profile and [sys.executable, '-m', 'cProfile'] or []) + subcmd
if not (fix_stdout or fix_stderr):
os.execvp(c[0], c)
p = None
try:
p = subprocess.Popen(c,
stdout=PIPE if fix_stdout else sys.stdout,
stderr=PIPE if fix_stderr else sys.stderr,
preexec_fn=force_tty,
bufsize=4096,
close_fds=True)
# Assume p will receive these signals and quit, which will
# then cause us to quit.
for sig in (signal.SIGINT, signal.SIGTERM, signal.SIGQUIT):
signal.signal(sig, signal.SIG_IGN)
filter_output(fix_stdout and p.stdout.fileno() or None,
fix_stderr and p.stderr.fileno() or None,
fix_stdout and sys.stdout.fileno() or None,
fix_stderr and sys.stderr.fileno() or None)
return p.wait()
except BaseException as ex:
add_ex_tb(ex)
try:
if p and p.poll() == None:
os.kill(p.pid, signal.SIGTERM)
p.wait()
except BaseException as kill_ex:
raise chain_ex(add_ex_tb(kill_ex), ex)
raise ex
