|
|
# darcs.py - darcs support for the convert extension
|
|
|
#
|
|
|
# Copyright 2007-2009 Matt Mackall <mpm@selenic.com> and others
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
from __future__ import absolute_import
|
|
|
|
|
|
import errno
|
|
|
import os
|
|
|
import re
|
|
|
import shutil
|
|
|
import tempfile
|
|
|
from mercurial.i18n import _
|
|
|
from mercurial import (
|
|
|
error,
|
|
|
util,
|
|
|
)
|
|
|
from . import common
|
|
|
NoRepo = common.NoRepo
|
|
|
|
|
|
# The naming drift of ElementTree is fun!
|
|
|
|
|
|
try:
|
|
|
import xml.etree.cElementTree.ElementTree as ElementTree
|
|
|
import xml.etree.cElementTree.XMLParser as XMLParser
|
|
|
except ImportError:
|
|
|
try:
|
|
|
import xml.etree.ElementTree.ElementTree as ElementTree
|
|
|
import xml.etree.ElementTree.XMLParser as XMLParser
|
|
|
except ImportError:
|
|
|
try:
|
|
|
import elementtree.cElementTree.ElementTree as ElementTree
|
|
|
import elementtree.cElementTree.XMLParser as XMLParser
|
|
|
except ImportError:
|
|
|
try:
|
|
|
import elementtree.ElementTree.ElementTree as ElementTree
|
|
|
import elementtree.ElementTree.XMLParser as XMLParser
|
|
|
except ImportError:
|
|
|
pass
|
|
|
|
|
|
class darcs_source(common.converter_source, common.commandline):
|
|
|
def __init__(self, ui, path, revs=None):
|
|
|
common.converter_source.__init__(self, ui, path, revs=revs)
|
|
|
common.commandline.__init__(self, ui, 'darcs')
|
|
|
|
|
|
# check for _darcs, ElementTree so that we can easily skip
|
|
|
# test-convert-darcs if ElementTree is not around
|
|
|
if not os.path.exists(os.path.join(path, '_darcs')):
|
|
|
raise NoRepo(_("%s does not look like a darcs repository") % path)
|
|
|
|
|
|
common.checktool('darcs')
|
|
|
version = self.run0('--version').splitlines()[0].strip()
|
|
|
if version < '2.1':
|
|
|
raise error.Abort(_('darcs version 2.1 or newer needed (found %r)')
|
|
|
% version)
|
|
|
|
|
|
if "ElementTree" not in globals():
|
|
|
raise error.Abort(_("Python ElementTree module is not available"))
|
|
|
|
|
|
self.path = os.path.realpath(path)
|
|
|
|
|
|
self.lastrev = None
|
|
|
self.changes = {}
|
|
|
self.parents = {}
|
|
|
self.tags = {}
|
|
|
|
|
|
# Check darcs repository format
|
|
|
format = self.format()
|
|
|
if format:
|
|
|
if format in ('darcs-1.0', 'hashed'):
|
|
|
raise NoRepo(_("%s repository format is unsupported, "
|
|
|
"please upgrade") % format)
|
|
|
else:
|
|
|
self.ui.warn(_('failed to detect repository format!'))
|
|
|
|
|
|
def before(self):
|
|
|
self.tmppath = tempfile.mkdtemp(
|
|
|
prefix='convert-' + os.path.basename(self.path) + '-')
|
|
|
output, status = self.run('init', repodir=self.tmppath)
|
|
|
self.checkexit(status)
|
|
|
|
|
|
tree = self.xml('changes', xml_output=True, summary=True,
|
|
|
repodir=self.path)
|
|
|
tagname = None
|
|
|
child = None
|
|
|
for elt in tree.findall('patch'):
|
|
|
node = elt.get('hash')
|
|
|
name = elt.findtext('name', '')
|
|
|
if name.startswith('TAG '):
|
|
|
tagname = name[4:].strip()
|
|
|
elif tagname is not None:
|
|
|
self.tags[tagname] = node
|
|
|
tagname = None
|
|
|
self.changes[node] = elt
|
|
|
self.parents[child] = [node]
|
|
|
child = node
|
|
|
self.parents[child] = []
|
|
|
|
|
|
def after(self):
|
|
|
self.ui.debug('cleaning up %s\n' % self.tmppath)
|
|
|
shutil.rmtree(self.tmppath, ignore_errors=True)
|
|
|
|
|
|
def recode(self, s, encoding=None):
|
|
|
if isinstance(s, unicode):
|
|
|
# XMLParser returns unicode objects for anything it can't
|
|
|
# encode into ASCII. We convert them back to str to get
|
|
|
# recode's normal conversion behavior.
|
|
|
s = s.encode('latin-1')
|
|
|
return super(darcs_source, self).recode(s, encoding)
|
|
|
|
|
|
def xml(self, cmd, **kwargs):
|
|
|
# NOTE: darcs is currently encoding agnostic and will print
|
|
|
# patch metadata byte-for-byte, even in the XML changelog.
|
|
|
etree = ElementTree()
|
|
|
# While we are decoding the XML as latin-1 to be as liberal as
|
|
|
# possible, etree will still raise an exception if any
|
|
|
# non-printable characters are in the XML changelog.
|
|
|
parser = XMLParser(encoding='latin-1')
|
|
|
p = self._run(cmd, **kwargs)
|
|
|
etree.parse(p.stdout, parser=parser)
|
|
|
p.wait()
|
|
|
self.checkexit(p.returncode)
|
|
|
return etree.getroot()
|
|
|
|
|
|
def format(self):
|
|
|
output, status = self.run('show', 'repo', no_files=True,
|
|
|
repodir=self.path)
|
|
|
self.checkexit(status)
|
|
|
m = re.search(r'^\s*Format:\s*(.*)$', output, re.MULTILINE)
|
|
|
if not m:
|
|
|
return None
|
|
|
return ','.join(sorted(f.strip() for f in m.group(1).split(',')))
|
|
|
|
|
|
def manifest(self):
|
|
|
man = []
|
|
|
output, status = self.run('show', 'files', no_directories=True,
|
|
|
repodir=self.tmppath)
|
|
|
self.checkexit(status)
|
|
|
for line in output.split('\n'):
|
|
|
path = line[2:]
|
|
|
if path:
|
|
|
man.append(path)
|
|
|
return man
|
|
|
|
|
|
def getheads(self):
|
|
|
return self.parents[None]
|
|
|
|
|
|
def getcommit(self, rev):
|
|
|
elt = self.changes[rev]
|
|
|
date = util.strdate(elt.get('local_date'), '%a %b %d %H:%M:%S %Z %Y')
|
|
|
desc = elt.findtext('name') + '\n' + elt.findtext('comment', '')
|
|
|
# etree can return unicode objects for name, comment, and author,
|
|
|
# so recode() is used to ensure str objects are emitted.
|
|
|
return common.commit(author=self.recode(elt.get('author')),
|
|
|
date=util.datestr(date, '%Y-%m-%d %H:%M:%S %1%2'),
|
|
|
desc=self.recode(desc).strip(),
|
|
|
parents=self.parents[rev])
|
|
|
|
|
|
def pull(self, rev):
|
|
|
output, status = self.run('pull', self.path, all=True,
|
|
|
match='hash %s' % rev,
|
|
|
no_test=True, no_posthook=True,
|
|
|
external_merge='/bin/false',
|
|
|
repodir=self.tmppath)
|
|
|
if status:
|
|
|
if output.find('We have conflicts in') == -1:
|
|
|
self.checkexit(status, output)
|
|
|
output, status = self.run('revert', all=True, repodir=self.tmppath)
|
|
|
self.checkexit(status, output)
|
|
|
|
|
|
def getchanges(self, rev, full):
|
|
|
if full:
|
|
|
raise error.Abort(_("convert from darcs does not support --full"))
|
|
|
copies = {}
|
|
|
changes = []
|
|
|
man = None
|
|
|
for elt in self.changes[rev].find('summary').getchildren():
|
|
|
if elt.tag in ('add_directory', 'remove_directory'):
|
|
|
continue
|
|
|
if elt.tag == 'move':
|
|
|
if man is None:
|
|
|
man = self.manifest()
|
|
|
source, dest = elt.get('from'), elt.get('to')
|
|
|
if source in man:
|
|
|
# File move
|
|
|
changes.append((source, rev))
|
|
|
changes.append((dest, rev))
|
|
|
copies[dest] = source
|
|
|
else:
|
|
|
# Directory move, deduce file moves from manifest
|
|
|
source = source + '/'
|
|
|
for f in man:
|
|
|
if not f.startswith(source):
|
|
|
continue
|
|
|
fdest = dest + '/' + f[len(source):]
|
|
|
changes.append((f, rev))
|
|
|
changes.append((fdest, rev))
|
|
|
copies[fdest] = f
|
|
|
else:
|
|
|
changes.append((elt.text.strip(), rev))
|
|
|
self.pull(rev)
|
|
|
self.lastrev = rev
|
|
|
return sorted(changes), copies, set()
|
|
|
|
|
|
def getfile(self, name, rev):
|
|
|
if rev != self.lastrev:
|
|
|
raise error.Abort(_('internal calling inconsistency'))
|
|
|
path = os.path.join(self.tmppath, name)
|
|
|
try:
|
|
|
data = util.readfile(path)
|
|
|
mode = os.lstat(path).st_mode
|
|
|
except IOError as inst:
|
|
|
if inst.errno == errno.ENOENT:
|
|
|
return None, None
|
|
|
raise
|
|
|
mode = (mode & 0o111) and 'x' or ''
|
|
|
return data, mode
|
|
|
|
|
|
def gettags(self):
|
|
|
return self.tags
|
|
|
|
