##// END OF EJS Templates
archive: defer opening the output until a file is matched...
archive: defer opening the output until a file is matched Before, if no file is matched, an error is thrown, but the archive is created anyway. When using hgweb, an error 500 is returned as the response body already exists when the error is seen. Afterwards, the archive is created before the first match is emitted. If no match is found, no archive is created. This is more consistent behavior as an empty archive is not a representable in all output formats, e.g. tar archives.

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repoviewutil.py
51 lines | 1.6 KiB | text/x-python | PythonLexer
# repoviewutil.py - constaints data relevant to repoview.py and other module
#
# Copyright 2012 Pierre-Yves David <pierre-yves.david@ens-lyon.org>
# Logilab SA <contact@logilab.fr>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from .. import error
### Nearest subset relation
# Nearest subset of filter X is a filter Y so that:
# * Y is included in X,
# * X - Y is as small as possible.
# This create and ordering used for branchmap purpose.
# the ordering may be partial
subsettable = {
None: b'visible',
b'visible-hidden': b'visible',
b'visible': b'served',
b'served.hidden': b'served',
b'served': b'immutable',
b'immutable': b'base',
}
def get_ordered_subset():
"""return a list of subset name from dependencies to dependents"""
_unfinalized = set(subsettable.values())
ordered = []
# the subset table is expected to be small so we do the stupid N² version
# of the algorithm
while _unfinalized:
this_level = []
for candidate in _unfinalized:
dependency = subsettable.get(candidate)
if dependency not in _unfinalized:
this_level.append(candidate)
if not this_level:
msg = "cyclic dependencies in repoview subset %r"
msg %= subsettable
raise error.ProgrammingError(msg)
this_level.sort(key=lambda x: x if x is not None else '')
ordered.extend(this_level)
_unfinalized.difference_update(this_level)
return ordered