Staging
v0.8.1
v0.8.1
https://foss.heptapod.net/mercurial/hgview
Tip revision: 89e88a71f2aba1499583be2afbf8d36f52017162 authored by Pierre-Yves David on 29 January 2013, 15:20:45 UTC
merge with future 1.7.1
merge with future 1.7.1
Tip revision: 89e88a7
util.py
# -*- coding: utf-8 -*-
# util functions
#
# Copyright (C) 2009-2012 Logilab. All rights reserved.
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
"""
Several helper functions
"""
import os
import string
from mercurial import ui, hg
from hgviewlib.hgpatches.scmutil import match
from hgviewlib.hgpatches import precursorsmarkers, successorsmarkers
def tounicode(string):
"""
Tries to convert s into a unicode string
"""
for encoding in ('utf-8', 'iso-8859-15', 'cp1252'):
try:
return unicode(string, encoding)
except UnicodeDecodeError:
pass
return unicode(string, 'utf-8', 'replace')
def isexec(filectx):
"""
Return True is the file at filectx revision is executable
"""
if hasattr(filectx, "isexec"):
return filectx.isexec()
return "x" in filectx.flags()
def exec_flag_changed(filectx):
"""
Return True if the file referenced by filectx has changed its exec
flag
"""
flag = isexec(filectx)
parents = filectx.parents()
if not parents:
return ""
pflag = isexec(parents[0])
if flag != pflag:
if flag:
return "set"
else:
return "unset"
return ""
def isbfile(filename):
return filename and filename.startswith('.hgbfiles' + os.sep)
def bfilepath(filename):
return filename and filename.replace('.hgbfiles' + os.sep, '')
def find_repository(path):
"""returns <path>'s mercurial repository
None if <path> is not under hg control
"""
path = os.path.abspath(path)
while not os.path.isdir(os.path.join(path, ".hg")):
oldpath = path
path = os.path.dirname(path)
if path == oldpath:
return None
return path
def rootpath(repo, rev, path):
"""return the path name of 'path' relative to repo's root at
revision rev;
path is relative to cwd
"""
ctx = repo[rev]
filenames = list(ctx.walk(match(ctx, [path], {})))
if len(filenames) != 1 or filenames[0] not in ctx.manifest():
return None
else:
return filenames[0]
# XXX what about functools.partial ?
class Curry(object):
"""Curryfication de fonction (http://fr.wikipedia.org/wiki/Curryfication)"""
def __init__(self, function, *additional_args, **additional_kwargs):
self.func = function
self.additional_args = additional_args
self.additional_kwargs = additional_kwargs
def __call__(self, *args, **kwargs):
args += self.additional_args
kwarguments = self.additional_kwargs.copy()
kwarguments.update(kwargs)
return self.func(*args, **kwarguments)
# XXX duplicates logilab.mtconverter.__init__ code
CONTROL_CHARS = [chr(ci) for ci in range(32)]
TR_CONTROL_CHARS = [' '] * len(CONTROL_CHARS)
for c in ('\n', '\r', '\t'):
TR_CONTROL_CHARS[ord(c)] = c
TR_CONTROL_CHARS[ord('\f')] = '\n'
TR_CONTROL_CHARS[ord('\v')] = '\n'
ESC_CAR_TABLE = string.maketrans(''.join(CONTROL_CHARS),
''.join(TR_CONTROL_CHARS))
ESC_UCAR_TABLE = unicode(ESC_CAR_TABLE, 'latin1')
def xml_escape(data):
"""escapes XML forbidden characters in attributes and CDATA"""
if isinstance(data, unicode):
data = data.translate(ESC_UCAR_TABLE)
else:
data = data.translate(ESC_CAR_TABLE)
return (data.replace('&','&').replace('<','<').replace('>','>')
.replace('"','"').replace("'",'''))
def format_desc(desc, width):
""" format a ctx description for oneliner
representation (summary view) """
udesc = tounicode(desc)
udesc = xml_escape(udesc.split('\n', 1)[0])
if len(udesc) > width:
udesc = udesc[:width] + '...'
return udesc
def first_known_precursors(ctx, excluded=()):
obsstore = getattr(ctx._repo, 'obsstore', None)
startnode = ctx.node()
nm = ctx._repo.changelog.nodemap
if obsstore is not None:
markers = precursorsmarkers(obsstore, startnode)
# consider all precursors
candidates = set(mark[0] for mark in markers)
seen = set(candidates)
if startnode in candidates:
candidates.remove(startnode)
else:
seen.add(startnode)
while candidates:
current = candidates.pop()
# is this changeset in the displayed set ?
crev = nm.get(current)
if crev is not None and crev not in excluded:
yield ctx._repo[crev]
else:
for mark in precursorsmarkers(obsstore, current):
if mark[0] not in seen:
candidates.add(mark[0])
seen.add(mark[0])
def first_known_successors(ctx, excluded=()):
obsstore = getattr(ctx._repo, 'obsstore', None)
startnode = ctx.node()
nm = ctx._repo.changelog.nodemap
if obsstore is not None:
markers = successorsmarkers(obsstore, startnode)
# consider all precursors
candidates = set()
for mark in markers:
candidates.update(mark[1])
seen = set(candidates)
if startnode in candidates:
candidates.remove(startnode)
else:
seen.add(startnode)
while candidates:
current = candidates.pop()
# is this changeset in the displayed set ?
crev = nm.get(current)
if crev is not None and crev not in excluded:
yield ctx._repo[crev]
else:
for mark in successorsmarkers(obsstore, current):
for succ in mark[1]:
if succ not in seen:
candidates.add(succ)
seen.add(succ)
def build_repo(ui, path):
"""build a repo like hg.repository
But ensure it is not filtered whatever the version used"""
repo = hg.repository(ui, path)
return getattr(repo, 'unfiltered', lambda: repo)()