Merge "Add -p option to download command."
This commit is contained in:
Jenkins
Gerrit Code Review
commit
6f7458a290
281
bin/swift
281
bin/swift
@ -25,7 +25,7 @@ from os.path import basename, dirname, getmtime, getsize, isdir, join
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from Queue import Queue
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from random import shuffle
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from sys import argv, exc_info, exit, stderr, stdout
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from threading import enumerate as threading_enumerate, Thread
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from threading import Thread
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from time import sleep, time, gmtime, strftime
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from traceback import format_exception
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from urllib import quote, unquote
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@ -84,16 +84,6 @@ class StopWorkerThreadSignal(object):
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pass
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def shutdown_worker_threads(queue, thread_list):
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for thread in [t for t in thread_list if t.isAlive()]:
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queue.put(StopWorkerThreadSignal())
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def immediate_exit(signum, frame):
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stderr.write(" Aborted\n")
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os_exit(2)
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class QueueFunctionThread(Thread):
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def __init__(self, queue, func, *args, **kwargs):
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@ -128,6 +118,24 @@ class QueueFunctionThread(Thread):
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self.exc_infos.append(exc_info())
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def shutdown_worker_threads(queue, thread_list):
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"""
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Takes a job queue and a list of associated QueueFunctionThread objects,
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puts a StopWorkerThreadSignal object into the queue, and waits for the
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queue to flush.
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"""
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for thread in [t for t in thread_list if t.isAlive()]:
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queue.put(StopWorkerThreadSignal())
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while any(map(QueueFunctionThread.is_alive, thread_list)):
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sleep(0.05)
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def immediate_exit(signum, frame):
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stderr.write(" Aborted\n")
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os_exit(2)
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st_delete_help = '''
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delete [options] --all OR delete container [options] [object] [object] ...
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Deletes everything in the account (with --all), or everything in a
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@ -261,47 +269,52 @@ def st_delete(parser, args, print_queue, error_queue):
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for _junk in xrange(options.container_threads)]
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for thread in container_threads:
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thread.start()
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if not args:
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conn = create_connection()
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try:
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marker = ''
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while True:
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containers = \
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[c['name'] for c in conn.get_account(marker=marker)[1]]
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if not containers:
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break
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for container in containers:
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container_queue.put(container)
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marker = containers[-1]
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except ClientException as err:
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if err.http_status != 404:
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raise
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error_queue.put('Account not found')
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elif len(args) == 1:
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if '/' in args[0]:
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print >> stderr, 'WARNING: / in container name; you might have ' \
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'meant %r instead of %r.' % \
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(args[0].replace('/', ' ', 1), args[0])
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conn = create_connection()
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_delete_container(args[0], conn)
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else:
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for obj in args[1:]:
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object_queue.put((args[0], obj))
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shutdown_worker_threads(container_queue, container_threads)
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put_errors_from_threads(container_threads, error_queue)
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try:
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if not args:
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conn = create_connection()
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try:
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marker = ''
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while True:
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containers = [
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c['name'] for c in conn.get_account(marker=marker)[1]]
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if not containers:
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break
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for container in containers:
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container_queue.put(container)
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marker = containers[-1]
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except ClientException as err:
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if err.http_status != 404:
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raise
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error_queue.put('Account not found')
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elif len(args) == 1:
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if '/' in args[0]:
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print >> stderr, 'WARNING: / in container name; you might ' \
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'have meant %r instead of %r.' % (
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args[0].replace('/', ' ', 1), args[0])
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conn = create_connection()
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_delete_container(args[0], conn)
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else:
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for obj in args[1:]:
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object_queue.put((args[0], obj))
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finally:
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shutdown_worker_threads(container_queue, container_threads)
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put_errors_from_threads(container_threads, error_queue)
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shutdown_worker_threads(object_queue, object_threads)
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put_errors_from_threads(object_threads, error_queue)
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shutdown_worker_threads(object_queue, object_threads)
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put_errors_from_threads(object_threads, error_queue)
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st_download_help = '''
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download --all OR download container [options] [object] [object] ...
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Downloads everything in the account (with --all), or everything in a
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container, or a list of objects depending on the args given. For a single
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object download, you may use the -o [--output] <filename> option to
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redirect the output to a specific file or if "-" then just redirect to
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stdout.'''.strip('\n')
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download --all [options] OR download container [options] [object] [object] ...
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Downloads everything in the account (with --all), or everything in all
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containers in the account matching a prefix (with --all and -p [--prefix]),
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or everything in a container, or a subset of a container with -p
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[--prefix], or a list of objects depending on the args given. -p or
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--prefix is an option that will only download items beginning with that
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prefix. For a single object download, you may use the -o [--output]
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<filename> option to redirect the output to a specific file or if "-" then
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just redirect to stdout.'''.strip('\n')
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def st_download(parser, args, print_queue, error_queue):
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@ -313,6 +326,9 @@ def st_download(parser, args, print_queue, error_queue):
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'-m', '--marker', dest='marker',
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default='', help='Marker to use when starting a container or '
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'account download')
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parser.add_option(
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'-p', '--prefix', dest='prefix',
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help='Will only download items beginning with the prefix')
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parser.add_option(
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'-o', '--output', dest='out_file', help='For a single '
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'file download, stream the output to an alternate location ')
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@ -426,12 +442,14 @@ def st_download(parser, args, print_queue, error_queue):
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container_queue = Queue(10000)
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def _download_container(container, conn):
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def _download_container(container, conn, prefix=None):
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try:
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marker = options.marker
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while True:
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objects = [o['name'] for o in
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conn.get_container(container, marker=marker)[1]]
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objects = [
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o['name'] for o in
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conn.get_container(container, marker=marker,
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prefix=prefix)[1]]
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if not objects:
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break
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marker = objects[-1]
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@ -455,42 +473,50 @@ def st_download(parser, args, print_queue, error_queue):
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for _junk in xrange(options.container_threads)]
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for thread in container_threads:
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thread.start()
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if not args:
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conn = create_connection()
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try:
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marker = options.marker
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while True:
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containers = [c['name']
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for c in conn.get_account(marker=marker)[1]]
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if not containers:
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break
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marker = containers[-1]
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shuffle(containers)
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for container in containers:
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container_queue.put(container)
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except ClientException as err:
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if err.http_status != 404:
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raise
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error_queue.put('Account not found')
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elif len(args) == 1:
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if '/' in args[0]:
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print >> stderr, 'WARNING: / in container name; you might have ' \
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'meant %r instead of %r.' % \
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(args[0].replace('/', ' ', 1), args[0])
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_download_container(args[0], create_connection())
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else:
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if len(args) == 2:
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obj = args[1]
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object_queue.put((args[0], obj, options.out_file))
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# We musn't let the main thread die with an exception while non-daemonic
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# threads exist or the process with hang and ignore Ctrl-C. So we catch
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# anything and tidy up the threads in a finally block.
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try:
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if not args:
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# --all case
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conn = create_connection()
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try:
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marker = options.marker
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while True:
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containers = [
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c['name'] for c in conn.get_account(
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marker=marker, prefix=options.prefix)[1]]
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if not containers:
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break
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marker = containers[-1]
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shuffle(containers)
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for container in containers:
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container_queue.put(container)
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except ClientException as err:
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if err.http_status != 404:
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raise
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error_queue.put('Account not found')
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elif len(args) == 1:
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if '/' in args[0]:
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print >> stderr, ('WARNING: / in container name; you might '
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'have meant %r instead of %r.' % (
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args[0].replace('/', ' ', 1), args[0]))
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_download_container(args[0], create_connection(),
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options.prefix)
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else:
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for obj in args[1:]:
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object_queue.put((args[0], obj))
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if len(args) == 2:
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obj = args[1]
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object_queue.put((args[0], obj, options.out_file))
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else:
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for obj in args[1:]:
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object_queue.put((args[0], obj))
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finally:
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shutdown_worker_threads(container_queue, container_threads)
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put_errors_from_threads(container_threads, error_queue)
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shutdown_worker_threads(container_queue, container_threads)
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put_errors_from_threads(container_threads, error_queue)
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shutdown_worker_threads(object_queue, object_threads)
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put_errors_from_threads(object_threads, error_queue)
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shutdown_worker_threads(object_queue, object_threads)
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put_errors_from_threads(object_threads, error_queue)
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def prt_bytes(bytes, human_flag):
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@ -550,7 +576,7 @@ def st_list(parser, args, print_queue, error_queue):
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parser.add_option(
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'-d', '--delimiter', dest='delimiter',
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help='Will roll up items with the given delimiter'
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' (see Cloud Files general documentation for what this means)')
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' (see OpenStack Swift API documentation for what this means)')
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(options, args) = parse_args(parser, args)
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args = args[1:]
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if options.delimiter and not args:
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@ -1002,34 +1028,37 @@ def st_upload(parser, args, print_queue, error_queue):
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for _junk in xrange(options.segment_threads)]
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for thread in segment_threads:
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thread.start()
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segment = 0
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segment_start = 0
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while segment_start < full_size:
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segment_size = int(options.segment_size)
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if segment_start + segment_size > full_size:
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segment_size = full_size - segment_start
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if options.use_slo:
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segment_name = '%s/slo/%s/%s/%s/%08d' % (
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obj, put_headers['x-object-meta-mtime'],
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full_size, options.segment_size, segment)
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else:
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segment_name = '%s/%s/%s/%s/%08d' % (
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obj, put_headers['x-object-meta-mtime'],
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full_size, options.segment_size, segment)
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segment_queue.put(
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{'path': path, 'obj': segment_name,
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'segment_start': segment_start,
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'segment_size': segment_size,
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'segment_index': segment,
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'log_line': '%s segment %s' % (obj, segment)})
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segment += 1
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segment_start += segment_size
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shutdown_worker_threads(segment_queue, segment_threads)
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if put_errors_from_threads(segment_threads, error_queue):
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raise ClientException(
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'Aborting manifest creation '
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'because not all segments could be uploaded. %s/%s'
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% (container, obj))
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try:
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segment = 0
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segment_start = 0
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while segment_start < full_size:
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segment_size = int(options.segment_size)
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if segment_start + segment_size > full_size:
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segment_size = full_size - segment_start
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if options.use_slo:
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segment_name = '%s/slo/%s/%s/%s/%08d' % (
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obj, put_headers['x-object-meta-mtime'],
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full_size, options.segment_size, segment)
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else:
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segment_name = '%s/%s/%s/%s/%08d' % (
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obj, put_headers['x-object-meta-mtime'],
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full_size, options.segment_size, segment)
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segment_queue.put(
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{'path': path, 'obj': segment_name,
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'segment_start': segment_start,
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'segment_size': segment_size,
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'segment_index': segment,
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'log_line': '%s segment %s' % (obj, segment)})
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segment += 1
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segment_start += segment_size
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finally:
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shutdown_worker_threads(segment_queue, segment_threads)
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if put_errors_from_threads(segment_threads,
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error_queue):
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raise ClientException(
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'Aborting manifest creation '
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'because not all segments could be uploaded. '
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'%s/%s' % (container, obj))
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if options.use_slo:
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slo_segments = []
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for thread in segment_threads:
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@ -1149,19 +1178,20 @@ def st_upload(parser, args, print_queue, error_queue):
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except Exception as err:
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error_queue.put(
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'Error trying to create container %r: %s' % (args[0], err))
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try:
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for arg in args[1:]:
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if isdir(arg):
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_upload_dir(arg)
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else:
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object_queue.put({'path': arg})
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shutdown_worker_threads(object_queue, object_threads)
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put_errors_from_threads(object_threads, error_queue)
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except ClientException as err:
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if err.http_status != 404:
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raise
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error_queue.put('Account not found')
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finally:
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shutdown_worker_threads(object_queue, object_threads)
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put_errors_from_threads(object_threads, error_queue)
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def split_headers(options, prefix='', error_queue=None):
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@ -1395,7 +1425,7 @@ Examples:
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print item
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print_thread = QueueFunctionThread(print_queue, _print)
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print_thread.setDaemon(True)
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print_thread.start()
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error_count = 0
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error_queue = Queue(10000)
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@ -1408,7 +1438,7 @@ Examples:
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print >> stderr, item
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error_thread = QueueFunctionThread(error_queue, _error)
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error_thread.setDaemon(True)
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error_thread.start()
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parser.usage = globals()['st_%s_help' % args[0]]
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try:
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@ -1416,18 +1446,9 @@ Examples:
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error_queue)
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except (ClientException, HTTPException, socket.error) as err:
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error_queue.put(str(err))
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# Let other threads start working, now start print and error thread,
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# this is to prevent the main thread shutdown two thread prematurely
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print_thread.start()
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error_thread.start()
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# If not all the worker threads have finished, then the main thread
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# has to wait. Only when there are main, error and print thread left
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# the main thread can proceed to finish up.
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while (len(threading_enumerate()) > 3 or not error_queue.empty() or
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not print_queue.empty()):
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sleep(0.5)
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finally:
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shutdown_worker_threads(print_queue, [print_thread])
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shutdown_worker_threads(error_queue, [error_thread])
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if error_count:
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exit(1)
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