/usr/lib/ruby/vendor_ruby/svn/delta.rb is in ruby-svn 1.9.3-2ubuntu1.
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# ====================================================================
require "English"
require "forwardable"
require "svn/error"
require "svn/util"
require "svn/core"
require "svn/ext/delta"
module Svn
module Delta
Util.set_constants(Ext::Delta, self)
Util.set_methods(Ext::Delta, self)
class << self
alias _path_driver path_driver
end
alias _path_driver path_driver
module_function
def svndiff_handler(output, version=nil)
args = [output, version || 0]
handler, handler_baton = Delta.txdelta_to_svndiff2(*args)
handler.baton = handler_baton
handler
end
def read_svndiff_window(stream, version)
Delta.txdelta_read_svndiff_window(stream, version)
end
def skip_svndiff_window(file, version)
Delta.txdelta_skip_svndiff_window(file, version)
end
def path_driver(editor, revision, paths, &callback_func)
Delta._path_driver(editor, revision, paths, callback_func)
end
def send(string_or_stream, handler=nil)
if handler.nil? and block_given?
handler = Proc.new {|window| yield(window)}
Delta.setup_handler_wrapper(handler)
end
if string_or_stream.is_a?(TextDeltaStream)
string_or_stream.send(handler)
elsif string_or_stream.is_a?(String)
Delta.txdelta_send_string(string_or_stream, handler)
else
Delta.txdelta_send_stream(string_or_stream, handler)
end
end
def apply(source, target, error_info=nil)
result = Delta.txdelta_apply_wrapper(source, target, error_info)
handler, handler_baton = result
handler.baton = handler_baton
[handler,nil]
end
def parse_svndiff(error_on_early_close=true, &handler)
Delta.txdelta_parse_svndiff(handler, error_on_early_close)
end
def setup_handler_wrapper(wrapper)
Proc.new do |window|
Delta.txdelta_invoke_window_handler_wrapper(wrapper, window)
end
end
TextDeltaStream = SWIG::TYPE_p_svn_txdelta_stream_t
class TextDeltaStream
class << self
def new(source, target)
Delta.txdelta(source, target)
end
def push_target(source, &handler)
Delta.txdelta_target_push(handler, source)
end
end
def md5_digest
Delta.txdelta_md5_digest_as_cstring(self)
end
def next_window
Delta.txdelta_next_window(self, Svn::Core::Pool.new)
end
def each
while window = next_window
yield(window)
end
end
def send(handler=nil)
if handler.nil? and block_given?
handler = Proc.new {|window| yield(window)}
Delta.setup_handler_wrapper(handler)
end
Delta.txdelta_send_txstream(self, handler)
end
end
TextDeltaWindow = TxdeltaWindow
class TextDeltaWindow
def compose(other_window)
Delta.txdelta_compose_windows(other_window, self)
end
def ops
Delta.txdelta_window_t_ops_get(self)
end
def apply_instructions(source_buffer)
Delta.swig_rb_txdelta_apply_instructions(self, source_buffer)
end
end
TextDeltaWindowHandler =
SWIG::TYPE_p_f_p_svn_txdelta_window_t_p_void__p_svn_error_t
class TextDeltaWindowHandler
attr_accessor :baton
def call(window)
Delta.txdelta_invoke_window_handler(self, window, @baton)
end
def send(string_or_stream)
if string_or_stream.is_a?(TextDeltaStream)
Delta.txdelta_send_txstream(string_or_stream, self, @baton)
elsif string_or_stream.is_a?(String)
Delta.txdelta_send_string(string_or_stream, self, @baton)
else
Delta.txdelta_send_stream(string_or_stream, self, @baton)
end
end
end
class Editor
%w(set_target_revision open_root delete_entry
add_directory open_directory change_dir_prop
close_directory absent_directory add_file open_file
apply_textdelta change_file_prop close_file
absent_file close_edit abort_edit).each do |name|
alias_method("_#{name}", name)
undef_method("#{name}=")
end
attr_accessor :baton
attr_writer :target_revision_address
private :target_revision_address=
def target_revision
Svn::Delta.swig_rb_delta_editor_get_target_revision(self)
end
def set_target_revision(target_revision)
args = [self, @baton, target_revision]
Svn::Delta.editor_invoke_set_target_revision(*args)
end
def open_root(base_revision)
args = [self, @baton, base_revision]
Svn::Delta.editor_invoke_open_root_wrapper(*args)
end
def delete_entry(path, revision, parent_baton)
args = [self, path, revision, parent_baton]
Svn::Delta.editor_invoke_delete_entry(*args)
end
def add_directory(path, parent_baton,
copyfrom_path, copyfrom_revision)
args = [self, path, parent_baton, copyfrom_path, copyfrom_revision]
Svn::Delta.editor_invoke_add_directory_wrapper(*args)
end
def open_directory(path, parent_baton, base_revision)
args = [self, path, parent_baton, base_revision]
Svn::Delta.editor_invoke_open_directory_wrapper(*args)
end
def change_dir_prop(dir_baton, name, value)
args = [self, dir_baton, name, value]
Svn::Delta.editor_invoke_change_dir_prop(*args)
end
def close_directory(dir_baton)
args = [self, dir_baton]
Svn::Delta.editor_invoke_close_directory(*args)
end
def absent_directory(path, parent_baton)
args = [self, path, parent_baton]
Svn::Delta.editor_invoke_absent_directory(*args)
end
def add_file(path, parent_baton,
copyfrom_path, copyfrom_revision)
args = [self, path, parent_baton, copyfrom_path, copyfrom_revision]
Svn::Delta.editor_invoke_add_file_wrapper(*args)
end
def open_file(path, parent_baton, base_revision)
args = [self, path, parent_baton, base_revision]
Svn::Delta.editor_invoke_open_file_wrapper(*args)
end
def apply_textdelta(file_baton, base_checksum)
args = [self, file_baton, base_checksum]
handler, handler_baton =
Svn::Delta.editor_invoke_apply_textdelta_wrapper(*args)
handler.baton = handler_baton
handler
end
def change_file_prop(file_baton, name, value)
args = [self, file_baton, name, value]
Svn::Delta.editor_invoke_change_file_prop(*args)
end
def close_file(file_baton, text_checksum)
args = [self, file_baton, text_checksum]
Svn::Delta.editor_invoke_close_file(*args)
end
def absent_file(path, parent_baton)
args = [self, path, parent_baton]
Svn::Delta.editor_invoke_absent_file(*args)
end
def close_edit
args = [self, @baton]
Svn::Delta.editor_invoke_close_edit(*args)
ensure
Core::Pool.destroy(self)
end
def abort_edit
args = [self, @baton]
Svn::Delta.editor_invoke_abort_edit(*args)
ensure
Core::Pool.destroy(self)
end
end
class BaseEditor
# open_root -> add_directory -> open_directory -> add_file -> open_file
def set_target_revision(target_revision)
end
def open_root(base_revision)
end
def delete_entry(path, revision, parent_baton)
end
def add_directory(path, parent_baton,
copyfrom_path, copyfrom_revision)
end
def open_directory(path, parent_baton, base_revision)
end
def change_dir_prop(dir_baton, name, value)
end
def close_directory(dir_baton)
end
def absent_directory(path, parent_baton)
end
def add_file(path, parent_baton,
copyfrom_path, copyfrom_revision)
end
def open_file(path, parent_baton, base_revision)
end
# return nil or object which has `call' method.
def apply_textdelta(file_baton, base_checksum)
end
def change_file_prop(file_baton, name, value)
end
def close_file(file_baton, text_checksum)
end
def absent_file(path, parent_baton)
end
def close_edit(baton)
end
def abort_edit(baton)
end
end
class CopyDetectableEditor < BaseEditor
def add_directory(path, parent_baton,
copyfrom_path, copyfrom_revision)
end
def add_file(path, parent_baton,
copyfrom_path, copyfrom_revision)
end
end
class ChangedDirsEditor < BaseEditor
attr_reader :changed_dirs
def initialize
@changed_dirs = []
end
def open_root(base_revision)
[true, '']
end
def delete_entry(path, revision, parent_baton)
dir_changed(parent_baton)
end
def add_directory(path, parent_baton,
copyfrom_path, copyfrom_revision)
dir_changed(parent_baton)
[true, path]
end
def open_directory(path, parent_baton, base_revision)
[true, path]
end
def change_dir_prop(dir_baton, name, value)
dir_changed(dir_baton)
end
def add_file(path, parent_baton,
copyfrom_path, copyfrom_revision)
dir_changed(parent_baton)
end
def open_file(path, parent_baton, base_revision)
dir_changed(parent_baton)
end
def close_edit(baton)
@changed_dirs.sort!
end
private
def dir_changed(baton)
if baton[0]
# the directory hasn't been printed yet. do it.
@changed_dirs << "#{baton[1]}/"
baton[0] = nil
end
end
end
class ChangedEditor < BaseEditor
attr_reader :copied_files, :copied_dirs
attr_reader :added_files, :added_dirs
attr_reader :deleted_files, :deleted_dirs
attr_reader :updated_files, :updated_dirs
def initialize(root, base_root)
@root = root
@base_root = base_root
@in_copied_dir = []
@copied_files = []
@copied_dirs = []
@added_files = []
@added_dirs = []
@deleted_files = []
@deleted_dirs = []
@updated_files = []
@updated_dirs = []
end
def open_root(base_revision)
[true, '']
end
def delete_entry(path, revision, parent_baton)
if @base_root.dir?("/#{path}")
@deleted_dirs << "#{path}/"
else
@deleted_files << path
end
end
def add_directory(path, parent_baton,
copyfrom_path, copyfrom_revision)
copyfrom_rev, copyfrom_path = @root.copied_from(path)
if in_copied_dir?
@in_copied_dir.push(true)
elsif Util.copy?(copyfrom_path, copyfrom_rev)
@copied_dirs << ["#{path}/", "#{copyfrom_path.sub(/^\//, '')}/", copyfrom_rev]
@in_copied_dir.push(true)
else
@added_dirs << "#{path}/"
@in_copied_dir.push(false)
end
[false, path]
end
def open_directory(path, parent_baton, base_revision)
[true, path]
end
def change_dir_prop(dir_baton, name, value)
if dir_baton[0]
@updated_dirs << "#{dir_baton[1]}/"
dir_baton[0] = false
end
dir_baton
end
def close_directory(dir_baton)
unless dir_baton[0]
@in_copied_dir.pop
end
end
def add_file(path, parent_baton,
copyfrom_path, copyfrom_revision)
copyfrom_rev, copyfrom_path = @root.copied_from(path)
if in_copied_dir?
# do nothing
elsif Util.copy?(copyfrom_path, copyfrom_rev)
@copied_files << [path, copyfrom_path.sub(/^\//, ''), copyfrom_rev]
else
@added_files << path
end
[nil, nil, nil]
end
def open_file(path, parent_baton, base_revision)
[nil, nil, path]
end
def apply_textdelta(file_baton, base_checksum)
file_baton[0] = :update
nil
end
def change_file_prop(file_baton, name, value)
file_baton[1] = :update
end
def close_file(file_baton, text_checksum)
text_mod, prop_mod, path = file_baton
# test the path. it will be nil if we added this file.
if path
if [text_mod, prop_mod] != [nil, nil]
@updated_files << path
end
end
end
def close_edit(baton)
@copied_files.sort! {|a, b| a[0] <=> b[0]}
@copied_dirs.sort! {|a, b| a[0] <=> b[0]}
@added_files.sort!
@added_dirs.sort!
@deleted_files.sort!
@deleted_dirs.sort!
@updated_files.sort!
@updated_dirs.sort!
end
private
def in_copied_dir?
@in_copied_dir.last
end
end
class WrapEditor
extend Forwardable
def_delegators :@wrapped_editor, :set_target_revision, :open_root
def_delegators :@wrapped_editor, :delete_entry, :add_directory
def_delegators :@wrapped_editor, :open_directory, :change_dir_prop
def_delegators :@wrapped_editor, :close_directory, :absent_directory
def_delegators :@wrapped_editor, :add_file, :open_file, :apply_textdelta
def_delegators :@wrapped_editor, :change_file_prop, :close_file
def_delegators :@wrapped_editor, :absent_file, :close_edit, :abort_edit
def initialize(wrapped_editor)
@wrapped_editor = wrapped_editor
end
end
end
end
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