help="""
Collection locator, optionally with a file path or prefix.
""")
-parser.add_argument('destination', type=str, nargs='?', default='/dev/stdout',
+parser.add_argument('destination', type=str, nargs='?', default='-',
help="""
-Local file or directory where the data is to be written. Default:
-/dev/stdout.
+Local file or directory where the data is to be written. Default: stdout.
""")
group = parser.add_mutually_exclusive_group()
group.add_argument('--progress', action='store_true',
help="""
Overwrite existing files while writing. The default behavior is to
refuse to write *anything* if any of the output files already
-exist. As a special case, -f is not needed to write to /dev/stdout.
+exist. As a special case, -f is not needed to write to stdout.
""")
group.add_argument('--skip-existing', action='store_true',
help="""
logger.debug("Appended source file name to destination directory: %s",
args.destination)
-if args.destination == '-':
- args.destination = '/dev/stdout'
if args.destination == '/dev/stdout':
+ args.destination = "-"
+
+if args.destination == '-':
# Normally you have to use -f to write to a file (or device) that
# already exists, but "-" and "/dev/stdout" are common enough to
# merit a special exception.
# that isn't a tty.
if (not (args.batch_progress or args.no_progress)
and sys.stderr.isatty()
- and (args.destination != '/dev/stdout'
+ and (args.destination != '-'
or not sys.stdout.isatty())):
args.progress = True
if not args.f:
open_flags |= os.O_EXCL
try:
- out_fd = os.open(args.destination, open_flags)
- with os.fdopen(out_fd, 'wb') as out_file:
- out_file.write(reader.manifest_text())
+ if args.destination == "-":
+ sys.stdout.write(reader.manifest_text())
+ else:
+ out_fd = os.open(args.destination, open_flags)
+ with os.fdopen(out_fd, 'wb') as out_file:
+ out_file.write(reader.manifest_text())
except (IOError, OSError) as error:
abort("can't write to '{}': {}".format(args.destination, error))
except (arvados.errors.ApiError, arvados.errors.KeepReadError) as error:
if 0 != string.find(os.path.join(s.name(), f.name()),
'.' + get_prefix):
continue
- dest_path = os.path.join(
- args.destination,
- os.path.join(s.name(), f.name())[len(get_prefix)+1:])
- if (not (args.n or args.f or args.skip_existing) and
- os.path.exists(dest_path)):
- abort('Local file %s already exists.' % (dest_path,))
+ if args.destination == "-":
+ dest_path = "-"
+ else:
+ dest_path = os.path.join(
+ args.destination,
+ os.path.join(s.name(), f.name())[len(get_prefix)+1:])
+ if (not (args.n or args.f or args.skip_existing) and
+ os.path.exists(dest_path)):
+ abort('Local file %s already exists.' % (dest_path,))
else:
if os.path.join(s.name(), f.name()) != '.' + get_prefix:
continue
outfile = None
digestor = None
if not args.n:
- if args.skip_existing and os.path.exists(outfilename):
- logger.debug('Local file %s exists. Skipping.', outfilename)
- continue
- elif not args.f and (os.path.isfile(outfilename) or
- os.path.isdir(outfilename)):
- # Good thing we looked again: apparently this file wasn't
- # here yet when we checked earlier.
- abort('Local file %s already exists.' % (outfilename,))
- if args.r:
- arvados.util.mkdir_dash_p(os.path.dirname(outfilename))
- try:
- outfile = open(outfilename, 'wb')
- except Exception as error:
- abort('Open(%s) failed: %s' % (outfilename, error))
+ if outfilename == "-":
+ outfile = sys.stdout
+ else:
+ if args.skip_existing and os.path.exists(outfilename):
+ logger.debug('Local file %s exists. Skipping.', outfilename)
+ continue
+ elif not args.f and (os.path.isfile(outfilename) or
+ os.path.isdir(outfilename)):
+ # Good thing we looked again: apparently this file wasn't
+ # here yet when we checked earlier.
+ abort('Local file %s already exists.' % (outfilename,))
+ if args.r:
+ arvados.util.mkdir_dash_p(os.path.dirname(outfilename))
+ try:
+ outfile = open(outfilename, 'wb')
+ except Exception as error:
+ abort('Open(%s) failed: %s' % (outfilename, error))
if args.hash:
digestor = hashlib.new(args.hash)
try:
sys.stderr.write("%s %s/%s\n"
% (digestor.hexdigest(), s.name(), f.name()))
except KeyboardInterrupt:
- if outfile and outfilename != '/dev/stdout':
- os.unlink(outfilename)
+ if outfile and (outfile.fileno() > 2) and not outfile.closed:
+ os.unlink(outfile.name)
break
if args.progress: