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send.py
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send.py
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# Copyright (C) 2009 Lukas Lalinsky <lalinsky@gmail.com>
# Copyright (C) 2009-2010 Jelmer Vernooij <jelmer@samba.org>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from __future__ import absolute_import
import time
from breezy import (
branch as _mod_branch,
diff as _mod_diff,
errors,
merge_directive,
osutils,
)
from io import StringIO
from subvertpy import (
properties,
)
class SvnDiffTree(_mod_diff.DiffTree):
"""Provides a text representation between two trees, formatted for svn."""
def _get_repository(self):
try:
return self.old_tree.repository
except AttributeError:
try:
return self.new_tree.repository
except AttributeError:
return None
def _get_svn_rev_info(self, tree, path):
if path is None:
return '(revision 0)'
try:
rev = tree.get_file_revision(path)
except errors.NoSuchFile:
return '(revision 0)'
except AttributeError:
# Not a revision tree
rev = None
if rev is None:
return '(working copy)'
repo = self._get_repository()
if repo is not None:
try:
info = repo.lookup_bzr_revision_id(rev)
except errors.NoSuchRevision:
pass
else:
return '(revision %d)' % info[0][2]
return '(working copy)'
def _write_contents_diff(self, path, old_version, old_contents,
new_version, new_contents):
if path is None:
return
self.to_file.write("Index: %s\n" % path)
self.to_file.write("=" * 67 + "\n")
old_label = '%s\t%s' % (path, old_version)
new_label = '%s\t%s' % (path, new_version)
try:
_mod_diff.internal_diff(old_label, old_contents,
new_label, new_contents,
self.to_file)
except errors.BinaryFile:
self.to_file.write("Cannot display: file contains binary data.\n")
def _write_properties_diff(self, path, old_properties, new_properties):
if new_properties is None:
return
if old_properties is None:
old_properties = {}
changed = []
for name in set(old_properties.keys() + new_properties.keys()):
oldval = old_properties.get(name)
newval = new_properties.get(name)
if oldval != newval:
changed.append((name, oldval, newval))
if changed == []:
return
self.to_file.write("Property changes on: %s\n" % path)
self.to_file.write("_" * 67 + "\n")
for (name, old_value, new_value) in changed:
if old_value is None:
self.to_file.write("Added: %s\n\t+%s\n" % (name, new_value))
elif new_value is None:
self.to_file.write("Removed: %s\n\t-%s\n" % (name, old_value))
else:
self.to_file.write("Changed: %s\n\t-%s\n\t+%s\n" % (
name, old_value, new_value))
def _get_file_properties(self, tree, path, kind, executable):
if kind in (None, "directory"):
return None
ret = {}
if executable:
ret[properties.PROP_EXECUTABLE] = properties.PROP_EXECUTABLE_VALUE
if kind == "symlink":
ret[properties.PROP_SPECIAL] = properties.PROP_SPECIAL_VALUE
return ret
def _get_file_contents(self, tree, file_id, path, kind):
if kind in (None, "directory"):
return None
from .mapping import get_svn_file_contents
with get_svn_file_contents(tree, kind, path) as f:
return f.readlines()
def _show_diff(self, specific_files, extra_trees):
iterator = self.new_tree.iter_changes(self.old_tree,
specific_files=specific_files,
extra_trees=extra_trees,
require_versioned=True)
has_changes = 0
for (file_id, paths, changed_content, versioned, parent, name, kind,
executable) in iterator:
# The root does not get diffed, and items with no known kind (that
# is, missing) in both trees are skipped as well.
if parent == (None, None) or kind == (None, None):
continue
oldpath, newpath = paths
renamed = (parent[0], name[0]) != (parent[1], name[1])
old_properties = self._get_file_properties(self.old_tree,
oldpath, kind[0], executable[0])
new_properties = self._get_file_properties(self.new_tree,
newpath, kind[1], executable[1])
old_version = self._get_svn_rev_info(self.old_tree, oldpath)
new_version = self._get_svn_rev_info(self.new_tree, newpath)
if oldpath == newpath:
if changed_content:
old_contents = self._get_file_contents(self.old_tree,
file_id, oldpath, kind[0])
new_contents = self._get_file_contents(self.new_tree,
file_id, newpath, kind[1])
self._write_contents_diff(oldpath, old_version,
old_contents, new_version, new_contents)
self._write_properties_diff(oldpath, old_properties, new_properties)
else:
old_contents = self._get_file_contents(self.old_tree, file_id,
oldpath, kind[0])
new_contents = self._get_file_contents(self.new_tree, file_id,
newpath, kind[1])
self._write_contents_diff(oldpath, old_version,
old_contents, new_version, [])
self._write_contents_diff(newpath, old_version, [],
new_version, new_contents)
self._write_properties_diff(newpath, {}, new_properties)
has_changes = (changed_content or renamed)
return has_changes
class SvnMergeDirective(merge_directive.BaseMergeDirective):
def to_lines(self):
return self.patch.splitlines(True)
@classmethod
def _generate_diff(cls, repository, svn_repository, revision_id,
ancestor_id):
tree_1 = repository.revision_tree(ancestor_id)
tree_2 = repository.revision_tree(revision_id)
s = StringIO()
differ = SvnDiffTree.from_trees_options(
tree_1, tree_2, s, 'utf8', None, '', '', None)
differ.show_diff(None, None)
return s.getvalue()
@classmethod
def from_objects(cls, repository, revision_id, time, timezone,
target_branch, local_target_branch=None,
public_branch=None, message=None):
from .repository import SvnRepository
submit_branch = _mod_branch.Branch.open(target_branch)
if not isinstance(submit_branch.repository, SvnRepository):
raise errors.BzrError("Not a Subversion repository")
with submit_branch.lock_read():
submit_revision_id = submit_branch.last_revision()
repository.fetch(submit_branch.repository, submit_revision_id)
graph = repository.get_graph()
ancestor_id = graph.find_unique_lca(revision_id,
submit_revision_id)
patch = cls._generate_diff(
repository, submit_branch.repository, revision_id, ancestor_id)
return cls(
revision_id, None, time, timezone, target_branch,
patch, None, public_branch, message)
def send_svn(branch, revision_id, submit_branch, public_branch,
no_patch, no_bundle, message, base_revision_id):
return SvnMergeDirective.from_objects(
branch.repository, revision_id, time.time(),
osutils.local_time_offset(), submit_branch,
public_branch=public_branch, message=message)