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hgweb: descend empty directories in web view...
hgweb: descend empty directories in web view When a manifest has a series of directories with nothing in them but a single directory, displaying the entire chain of empty directories allows for navigation down to the first non-empty directory with a single click. Because Java links package hierarchy to directory hierarchy, and because Java conventions include at least three empty directories at the top of this hierarchy, descending down empty directories is very common in Java web tools.

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streamclone.py
65 lines | 2.1 KiB | text/x-python | PythonLexer
# streamclone.py - streaming clone server support for mercurial
#
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
import util, lock
from i18n import _
class StreamException(Exception):
def __init__(self, code):
Exception.__init__(self)
self.code = code
def __str__(self):
return '%i\n' % self.code
# if server supports streaming clone, it advertises "stream"
# capability with value that is version+flags of repo it is serving.
# client only streams if it can read that repo format.
# stream file format is simple.
#
# server writes out line that says how many files, how many total
# bytes. separator is ascii space, byte counts are strings.
#
# then for each file:
#
# server writes out line that says file name, how many bytes in
# file. separator is ascii nul, byte count is string.
#
# server writes out raw file data.
def stream_out(repo, untrusted=False):
'''stream out all metadata files in repository.
writes to file-like object, must support write() and optional flush().'''
if not repo.ui.configbool('server', 'uncompressed', untrusted=untrusted):
raise StreamException(1)
entries = []
total_bytes = 0
try:
l = None
try:
repo.ui.debug(_('scanning\n'))
# get consistent snapshot of repo, lock during scan
l = repo.lock()
for name, ename, size in repo.store.walk():
entries.append((name, size))
total_bytes += size
finally:
del l
except (lock.LockHeld, lock.LockUnavailable):
raise StreamException(2)
yield '0\n'
repo.ui.debug(_('%d files, %d bytes to transfer\n') %
(len(entries), total_bytes))
yield '%d %d\n' % (len(entries), total_bytes)
for name, size in entries:
repo.ui.debug(_('sending %s (%d bytes)\n') % (name, size))
yield '%s\0%d\n' % (name, size)
for chunk in util.filechunkiter(repo.sopener(name), limit=size):
yield chunk