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【问题描述】：MyEclipse插件版本1.4，客户端TortoiseSVN 1.6.6，用客户端commit代码之后，无法在MyEclipse下对工程就行update等操作,提示错误信息:This client is too old to work with working copy '.'; please get a newer Subversion client
【问题分析】：网络一气搜集之后，发现问题所在：.svn目录，里面保存着svn需要的一些版本信息，用TortoiseSVN去操作，会在.svn里增加一些文件。如果TortoiseSVN的版本比插件版本要高，那么再回到低版本去工作，就会有兼容性错误，因为老的客户端无法识别那些。
解决方法如下：
&这里有官方解决方案
1、下载官方的python文件
2、下载安装python，执行python文件时有用 ，下载地址：& 安装完成后把安装目录加入到path环境中
3、cmd进入py文件目录下执行py文件加入--help查看帮助，命令C:\change-svn-wc-format&change-svn-wc-format.py --help
4、cmd执行下面命令，把项目对应SVN从1.5降为1..4
change-svn-wc-format.py d:\Mydropbox\Dropbox\Source\QA 1.4 --verbose
【解决方法】：
方案1（未试验，理论可行）：
在线更新安装插件
help-&sofeware updates-& find and install
方案2（测试可行）：
一、下载：change-svn-wc-format.py（见附件） ，这是一个Python做的script，所以需要先下载Python
注意：1)从目前来看，最好使用Python 2.6，如果是用最新的3.0版本会出现问题。 比如无法打开Script，出现异常等等。2)安装后在环境变量的path中追加python安装路径：&C:/Python26&
二、1)把change-svn-wc-format.py放入C盘根目录，运行--&cmd--&cd C:/
2)执行修改：
&C:/&change-svn-wc-format.py E:/work/sadapter 1.4 --force
参数说明：第一个change-svn-wc-format.py是执行脚本，第二个E:/work/sadapter是工程路径，第三个1.4是要修改到的版本，第四个--force不是必须的，在执行失败的情况下可以加入此参数。
3)结果：一阵processing：
……Checking whether WC format can be converted
Writing WC format
Converted WC at 'E:/work/sadapter' into format 8 for Subversion 1.4
再去MyEclipse下更新done：
……&&& A& E:/work/sadapter/src/main/resources/efs/sadapter/config/spring/order/orderContext.xml
&&& D& E:/work/sadapter/src/main/resources/efs/sadapter/config/spring/contract/custRouteContext.xml
&&& D& E:/work/sadapter/src/main/resources/efs/sadapter/config/spring/contract/custInfo.xml
&&& D& E:/work/sadapter/src/main/resources/efs/sadapter/config/spring/contract/custAcctContext.xml
&&& U& E:/work/sadapter/src/main/resources/efs/sadapter/config/spring/contract/contractContext.xml
&&& U& E:/work/sadapter/src/main/filter-resources/efs/sadapter/config/spring/applicationContext.xml
&&& Updated to revision 1235.
&&& ===== File Statistics: =====
&&& Deleted: 19
&&& Added: 14
&&& Updated: 17
或者将下列代码保存成change-svn-wc-format.py文件，chmod +x change-svn-wc-format.py修改执行权限，直接执行：sudo ../change-svn-wc-format.py kernel_imx 1.5
#!/usr/bin/env python
# change-svn-wc-format.py: Change the format of a Subversion working copy.
# ====================================================================
#&&& 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
#&&& 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.
# ====================================================================
import sys
import getopt
& my_getopt = getopt.gnu_getopt
except AttributeError:
& my_getopt = getopt.getopt
### The entries file parser in subversion/tests/cmdline/svntest/entry.py
### handles the XML-based WC entries file format used by Subversion
### 1.3 and lower.& It could be rolled into this script.
LATEST_FORMATS = { &1.4& : 8,
&&&&&&&&&&&&&&&&&& &1.5& : 9,
&&&&&&&&&&&&&&&&&& &1.6& : 10,
&&&&&&&&&&&&&&&&&& # Do NOT add format 11 here.& See comment in must_retain_fields
&&&&&&&&&&&&&&&&&& # for why.
&&&&&&&&&&&&&&&& }
def usage_and_exit(error_msg=None):
& &&&Write usage information and exit.& If ERROR_MSG is provide, that
& error message is printed first (to stderr), the usage info goes to
& stderr, and the script exits with a non-zero status.& Otherwise,
& usage info goes to stdout and the script exits with a zero status.&&&
& progname = os.path.basename(sys.argv[0])
& stream = error_msg and sys.stderr or sys.stdout
& if error_msg:
&&& stream.write(&ERROR: %s/n/n& % error_msg)
& stream.write(&&&/
usage: %s WC_PATH SVN_VERSION [--verbose] [--force] [--skip-unknown-format]
&&&&&& %s --help
Change the format of a Subversion working copy to that of SVN_VERSION.
& --skip-unknown-format&&& : skip directories with unknown working copy
&&&&&&&&&&&&&&&&&&&&&&&&&&&& format and continue the update
&&& % (progname, progname))
& stream.flush()
& sys.exit(error_msg and 1 or 0)
def get_adm_dir():
& &&&Return the name of Subversion's administrative directory,
& adjusted for the SVN_ASP_DOT_NET_HACK environment variable.& See
& for details.&&&
& return &SVN_ASP_DOT_NET_HACK& in os.environ and &_svn& or &.svn&
class WCFormatConverter:
& &Performs WC format conversions.&
& root_path = None
& error_on_unrecognized = True
& force = False
& verbosity = 0
& def write_dir_format(self, format_nbr, dirname, paths):
&&& &&&Attempt to write the WC format FORMAT_NBR to the entries file
&&& for DIRNAME.& Throws LossyConversionException when not in --force
&&& mode, and unconvertable WC data is encountered.&&&
&&& # Avoid iterating in unversioned directories.
&&& if not (get_adm_dir() in paths):
&&&&& del paths[:]
&&&&& return
&&& # Process the entries file for this versioned directory.
&&& if self.verbosity:
&&&&& print(&Processing directory '%s'& % dirname)
&&& entries = Entries(os.path.join(dirname, get_adm_dir(), &entries&))
&&& entries_parsed = True
&&& if self.verbosity:
&&&&& print(&Parsing file '%s'& % entries.path)
&&&&& entries.parse(self.verbosity)
&&& except UnrecognizedWCFormatException, e:
&&&&& if self.error_on_unrecognized:
&&&&&&& raise
&&&&& sys.stderr.write(&%s, skipping/n& % e)
&&&&& sys.stderr.flush()
&&&&& entries_parsed = False
&&& if entries_parsed:
&&&&& format = Format(os.path.join(dirname, get_adm_dir(), &format&))
&&&&& if self.verbosity:
&&&&&&& print(&Updating file '%s'& % format.path)
&&&&& format.write_format(format_nbr, self.verbosity)
&&&&& if self.verbosity:
&&&&&&& print(&Skipping file '%s'& % format.path)
&&& if self.verbosity:
&&&&& print(&Checking whether WC format can be converted&)
&&&&& entries.assert_valid_format(format_nbr, self.verbosity)
&&& except LossyConversionException, e:
&&&&& # In --force mode, ignore complaints about lossy conversion.
&&&&& if self.force:
&&&&&&& print(&WARNING: WC format conversion will be lossy. Dropping &/
&&&&&&&&&&&&& &field(s) %s & % &, &.join(e.lossy_fields))
&&&&& else:
&&&&&&& raise
&&& if self.verbosity:
&&&&& print(&Writing WC format&)
&&& entries.write_format(format_nbr)
& def change_wc_format(self, format_nbr):
&&& &&&Walk all paths in a WC tree, and change their format to
&&& FORMAT_NBR.& Throw LossyConversionException or NotImplementedError
&&& if the WC format should not be converted, or is unrecognized.&&&
&&& for dirpath, dirs, files in os.walk(self.root_path):
&&&&& self.write_dir_format(format_nbr, dirpath, dirs + files)
class Entries:
& &&&Represents a .svn/entries file.
& 'The entries file' section in subversion/libsvn_wc/README is a
& useful reference.&&&
& # The name and index of each field composing an entry's record.
& entry_fields = (
&&& &name&,
&&& &kind&,
&&& &revision&,
&&& &url&,
&&& &repos&,
&&& &schedule&,
&&& &text-time&,
&&& &checksum&,
&&& &committed-date&,
&&& &committed-rev&,
&&& &last-author&,
&&& &has-props&,
&&& &has-prop-mods&,
&&& &cachable-props&,
&&& &present-props&,
&&& &conflict-old&,
&&& &conflict-new&,
&&& &conflict-wrk&,
&&& &prop-reject-file&,
&&& &copied&,
&&& &copyfrom-url&,
&&& &copyfrom-rev&,
&&& &deleted&,
&&& &absent&,
&&& &incomplete&,
&&& &uuid&,
&&& &lock-token&,
&&& &lock-owner&,
&&& &lock-comment&,
&&& &lock-creation-date&,
&&& &changelist&,
&&& &keep-local&,
&&& &working-size&,
&&& &depth&,
&&& &tree-conflicts&,
&&& &file-external&,
& # The format number.
& format_nbr = -1
& # How many bytes the format number takes in the file.& (The format number
& # may have leading zeroes after using this script to convert format 10 to
& # format 9 -- which would write the format number as '09'.)
& format_nbr_bytes = -1
& def __init__(self, path):
&&& self.path = path
&&& self.entries = []
& def parse(self, verbosity=0):
&&& &&&Parse the entries file.& Throw NotImplementedError if the WC
&&& format is unrecognized.&&&
&&& input = open(self.path, &r&)
&&& # Read WC format number from INPUT.& Validate that it
&&& # is a supported format for conversion.
&&& format_line = input.readline()
&&&&& self.format_nbr = int(format_line)
&&&&& self.format_nbr_bytes = len(format_line.rstrip()) # remove '/n'
&&& except ValueError:
&&&&& self.format_nbr = -1
&&&&& self.format_nbr_bytes = -1
&&& if not self.format_nbr in LATEST_FORMATS.values():
&&&&& raise UnrecognizedWCFormatException(self.format_nbr, self.path)
&&& # Parse file into individual entries, to later inspect for
&&& # non-convertable data.
&&& entry = None
&&& while True:
&&&&& entry = self.parse_entry(input, verbosity)
&&&&& if entry is None:
&&&&&&& break
&&&&& self.entries.append(entry)
&&& input.close()
& def assert_valid_format(self, format_nbr, verbosity=0):
&&& if verbosity &= 2:
&&&&& print(&Validating format for entries file '%s'& % self.path)
&&& for entry in self.entries:
&&&&& if verbosity &= 3:
&&&&&&& print(&Validating format for entry '%s'& % entry.get_name())
&&&&& try:
&&&&&&& entry.assert_valid_format(format_nbr)
&&&&& except LossyConversionException:
&&&&&&& if verbosity &= 3:
&&&&&&&&& sys.stderr.write(&Offending entry:/n%s/n& % entry)
&&&&&&&&& sys.stderr.flush()
&&&&&&& raise
& def parse_entry(self, input, verbosity=0):
&&& &Read an individual entry from INPUT stream.&
&&& entry = None
&&& while True:
&&&&& line = input.readline()
&&&&& if line in (&&, &/x0c/n&):
&&&&&&& # EOF or end of entry terminator encountered.
&&&&&&& break
&&&&& if entry is None:
&&&&&&& entry = Entry()
&&&&& # Retain the field value, ditching its field terminator (&/x0a&).
&&&&& entry.fields.append(line[:-1])
&&& if entry is not None and verbosity &= 3:
&&&&& sys.stdout.write(str(entry))
&&&&& print(&-& * 76)
&&& return entry
& def write_format(self, format_nbr):
&&& # Overwrite all bytes of the format number (which are the first bytes in
&&& # the file).& Overwrite format '10' by format '09', which will be converted
&&& # to '9' by Subversion when it rewrites the file.& (Subversion 1.4 and later
&&& # ignore leading zeroes in the format number.)
&&& assert len(str(format_nbr)) &= self.format_nbr_bytes
&&& format_string = '%0' + str(self.format_nbr_bytes) + 'd'
&&& os.chmod(self.path, 0600)
&&& output = open(self.path, &r+&, 0)
&&& output.write(format_string % format_nbr)
&&& output.close()
&&& os.chmod(self.path, 0400)
class Entry:
& &Describes an entry in a WC.&
& # Maps format numbers to indices of fields within an entry's record that must
& # be retained when downgrading to that format.
& must_retain_fields = {
&&&&& # Not in 1.4: changelist, keep-local, depth, tree-conflicts, file-externals
&&&&& 8& : (30, 31, 33, 34, 35),
&&&&& # Not in 1.5: tree-conflicts, file-externals
&&&&& 9& : (34, 35),
&&&&& 10 : (),
&&&&& # Downgrading from format 11 (1.7-dev) to format 10 is not possible,
&&&&& # because 11 does not use has-props and cachable-props (but 10 does).
&&&&& # Naively downgrading in that situation causes properties to disappear
&&&&& # from the wc.
&&&&& # Downgrading from the 1.7 SQLite-based format to format 10 is not
&&&&& # implemented.
& def __init__(self):
&&& self.fields = []
& def assert_valid_format(self, format_nbr):
&&& &Assure that conversion will be non-lossy by examining fields.&
&&& # Check whether lossy conversion is being attempted.
&&& lossy_fields = []
&&& for field_index in self.must_retain_fields[format_nbr]:
&&&&& if len(self.fields) - 1 &= field_index and self.fields[field_index]:
&&&&&&& lossy_fields.append(Entries.entry_fields[field_index])
&&& if lossy_fields:
&&&&& raise LossyConversionException(lossy_fields,
&&&&&&& &Lossy WC format conversion requested for entry '%s'/n&
&&&&&&& &Data for the following field(s) is unsupported by older versions &
&&&&&&& &of/nSubversion, and is likely to be subsequently discarded, and/or &
&&&&&&& &have/nunexpected side-effects: %s/n/n&
&&&&&&& &WC format conversion was cancelled, use the --force option to &
&&&&&&& &override/nthe default behavior.&
&&&&&&& % (self.get_name(), &, &.join(lossy_fields)))
& def get_name(self):
&&& &Return the name of this entry.&
&&& return len(self.fields) & 0 and self.fields[0] or &&
& def __str__(self):
&&& &Return all fields from this entry as a multi-line string.&
&&& rep = &&
&&& for i in range(0, len(self.fields)):
&&&&& rep += &[%s] %s/n& % (Entries.entry_fields[i], self.fields[i])
&&& return rep
class Format:
& &&&Represents a .svn/format file.&&&
& def __init__(self, path):
&&& self.path = path
& def write_format(self, format_nbr, verbosity=0):
&&& format_string = '%d/n'
&&& if os.path.exists(self.path):
&&&&& if verbosity &= 1:
&&&&&&& print(&%s will be updated.& % self.path)
&&&&& os.chmod(self.path,0600)
&&&&& if verbosity &= 1:
&&&&&&& print(&%s does not exist, creating it.& % self.path)
&&& format = open(self.path, &w&)
&&& format.write(format_string % format_nbr)
&&& format.close()
&&& os.chmod(self.path, 0400)
class LocalException(Exception):
& &&&Root of local exception class hierarchy.&&&
class LossyConversionException(LocalException):
& &Exception thrown when a lossy WC format conversion is requested.&
& def __init__(self, lossy_fields, str):
&&& self.lossy_fields = lossy_fields
&&& self.str = str
& def __str__(self):
&&& return self.str
class UnrecognizedWCFormatException(LocalException):
& def __init__(self, format, path):
&&& self.format = format
&&& self.path = path
& def __str__(self):
&&& return (&Unrecognized WC format %d in '%s'; &
&&&&&&&&&&& &only formats 8, 9, and 10 can be supported&) % (self.format, self.path)
def main():
&&& opts, args = my_getopt(sys.argv[1:], &vh?&,
&&&&&&&&&&&&&&&&&&&&&&&&&& [&debug&, &force&, &skip-unknown-format&,
&&&&&&&&&&&&&&&&&&&&&&&&&&& &verbose&, &help&])
&&& usage_and_exit(&Unable to process arguments/options&)
& converter = WCFormatConverter()
& # Process arguments.
& if len(args) == 2:
&&& converter.root_path = args[0]
&&& svn_version = args[1]
&&& usage_and_exit()
& # Process options.
& debug = False
& for opt, value in opts:
&&& if opt in (&--help&, &-h&, &-?&):
&&&&& usage_and_exit()
&&& elif opt == &--force&:
&&&&& converter.force = True
&&& elif opt == &--skip-unknown-format&:
&&&&& converter.error_on_unrecognized = False
&&& elif opt in (&--verbose&, &-v&):
&&&&& converter.verbosity += 1
&&& elif opt == &--debug&:
&&&&& debug = True
&&&&& usage_and_exit(&Unknown option '%s'& % opt)
&&& new_format_nbr = LATEST_FORMATS[svn_version]
& except KeyError:
&&& usage_and_exit(&Unsupported version number '%s'; &
&&&&&&&&&&&&&&&&&& &only 1.4, 1.5, and 1.6 can be supported& % svn_version)
&&& converter.change_wc_format(new_format_nbr)
& except LocalException, e:
&&& if debug:
&&&&& raise
&&& sys.stderr.write(&%s/n& % e)
&&& sys.stderr.flush()
&&& sys.exit(1)
& print(&Converted WC at '%s' into format %d for Subversion %s& % /
&&&&&&& (converter.root_path, new_format_nbr, svn_version))
if __name__ == &__main__&:
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