blocks|key|1234766|text|存储库中的文件hooks/pre-commit是一个脚本或程序，它将在成功提交之前执行。只需将其创建为脚本，在提交时使用适当的版本号更新文件(修订号在脚本运行时传递给脚本)。下面是一个编写预提交钩子示例的教程：http://wordaligned.org/articles/a-subversion-pre-commit-hook|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1234767|entityMap|0|LINK|mutability|MUTABLE|url|http://wordaligned.org/articles/a-subversion-pre-commit-hook^0|7|G|2X|1O|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

The file <code>hooks/pre-commit</code> in your repository is a script or program which will be executed before a successful commit. Simply make this a script which updates your file with the proper version number as it is being committed (the revision number is passed to your script as it's run). Here's a tutorial with an example of writing a pre-commit hook: <a href="http://wordaligned.org/articles/a-subversion-pre-commit-hook" rel="nofollow noreferrer">http://wordaligned.org/articles/a-subversion-pre-commit-hook</a>

blocks|key|1449544|text|查看pysvn。它公开了Python中用于Subversion运行时功能的扩展。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1449545|entityMap|0|LINK|mutability|MUTABLE|url|http://pysvn.tigris.org/^0|2|5|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Check out <a href="http://pysvn.tigris.org/" rel="nofollow noreferrer">pysvn</a>. it exposes extensions in Python for Subversion runtime functionality.

blocks|key|1449621|text|在Django中有一段代码可以让你做到这一点，我建议你看看它。http://code.djangoproject.com/browser/django/trunk/django/utils/version.py|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1449622|entityMap|0|LINK|mutability|MUTABLE|url|http://code.djangoproject.com/browser/django/trunk/django/utils/version.py^0|V|22|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

There's a snippet of code in Django that allows you to do this, I'd recommend looking at it. <a href="http://code.djangoproject.com/browser/django/trunk/django/utils/version.py" rel="nofollow noreferrer">http://code.djangoproject.com/browser/django/trunk/django/utils/version.py</a>

blocks|key|1234934|text|我只需要在构建项目时运行一个小脚本就可以做到这一点。该脚本仅调用svn+info和sed来获取原始修订数据，并将该数字注入到revision.txt文件中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1234935|Hudson构建服务器使它变得更加容易，因为它在调用构建脚本之前将SVN修订号设置为环境变量。|1234936|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I do this by simply running a small script when building my project. The script just calls svn info in combination with sed to get out the bare revision data and injects that number into the revision.txt file. 

The Hudson build server makes it even easier as it sets the SVN revision number as an environment variable right before invoking your Build scripts.

blocks|key|1449748|text|我不确定Python的具体细节，但是如果将字符串$Revision$放到文件中的某个位置，并且在SVN配置中启用-auto-props=true，它将被重写为类似于$Revision:+144$的内容。然后，您可以在脚本中对其进行解析。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1449749|这里有a+number+of+property+keywords+you+can+use+in+this+way。|offset|length|1449750|这不会有任何开销，例如查询SVN代码库，因为字符串在提交或更新时被硬编码到文件中。|1449751|我不确定在Python中如何解析，但在PHP中我会这样做：|1449752|$revString+=+'$Revision:+144$';
if(preg_match('/:+([0-9]%2B)\$/',+$revString,+$matches)+{
++++echo+'Revision+is+'+.+$matches[1];
}|code-block|syntax|javascript|1449753|entityMap|0|LINK|mutability|MUTABLE|url|http://svnbook.red-bean.com/en/1.1/ch07s02.html#svn-ch-7-sect-2.3.4^0|0|3|1H|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|13|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

I'm not sure about the Python specifics, but if put the string $Revision$ into your file somewhere and you have enable-auto-props=true in your SVN config, it'll get rewritten to something like $Revision: 144$. You could then parse this in your script.

There are <a href="http://svnbook.red-bean.com/en/1.1/ch07s02.html#svn-ch-7-sect-2.3.4" rel="noreferrer">a number of property keywords you can use in this way</a>.

This won't have any overhead, e.g. querying the SVN repo, because the string is hard-coded into your file on commit or update.

I'm not sure how you'd parse this in Python but in PHP I'd do:

<pre><code>$revString = '$Revision: 144$';
if(preg_match('/: ([0-9]+)\$/', $revString, $matches) {
 echo 'Revision is ' . $matches[1];
}
</code></pre>

blocks|key|1449797|text|我发现when+it+is+run部分有点模棱两可--+when+it+is+run+from+where？从SVN签出还是从发布的代码？所有的解决方案都以某种方式将SVN版本注入到Python源代码中，或者在存储库中的某个单独的版本文件中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1449798|版本文件会在新签出时更改，因此需要在分发之前进行干净签出。所以我的问题是程序在哪里运行。|1449799|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I find the when it is run section slightly ambiguous - when it is run from where ? From an SVN checkout or from released code ? All the solutions work on injecting the SVN version somehow into the Python source or somewhere in the repository in a separate version file.

The version file is changed on fresh checkouts, so clean checkouts need to be done before distribution. So my question of where the program is being run remains.

blocks|key|1235105|text|与类似，但比PHP答案更具pythonic风格；将此代码放入模块的__init__.py中|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1235106|__version__+=+filter(str.isdigit,+"$Revision:+13+$")|code-block|syntax|javascript|1235107|并确保添加了Revision属性：|1235108|svn+propset+svn:keywords+Revision+__init__.py|1235109|entityMap^0|X|B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

Similar to, but a little more pythonic than the PHP answer; put this in your module's <code>__init__.py</code>:

<pre><code>__version__ = filter(str.isdigit, "$Revision: 13 $")
</code></pre>

and make sure you add the Revision property:

<pre><code>svn propset svn:keywords Revision __init__.py
</code></pre>

blocks|key|1449907|text|或者你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1449908|import+re,subprocess

svn_info+=+subprocess.check_output("svn+info")

print+(re.search(ur"Revision:\s\d%2B",+svn_info)).group()|code-block|syntax|javascript|1449909|它会在我的项目中打印"Revision:+2874"|offset|length|style|CODE|1449910|或者像这样：|1449911|print+(subprocess.check_output("svnversion")).split(":")[0]|1449912|它会在我的项目中打印"2874"|1449913|entityMap^0|0|0|A|G|0|0|0|A|6|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|11|8|@$I|12|J|13|K|L]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Or you can do like this:

<pre><code>import re,subprocess

svn_info = subprocess.check_output("svn info")

print (re.search(ur"Revision:\s\d+", svn_info)).group()
</code></pre>

it prints <code>"Revision: 2874"</code> in my project

Or like this:

<pre><code>print (subprocess.check_output("svnversion")).split(":")[0]
</code></pre>

it prints <code>"2874"</code> in my project

blocks|key|1235202|text|在Python中，这对我很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235203|获取所有svn信息：|1235204|svn_info+=+subprocess.check_output('svn+info').decode("utf-8")+
print(svn_info)|code-block|syntax|javascript|1235205|执行搜索并拆分号码：|1235206|revisionNum+=+re.search("Revision:\s\d%2B",+svn_info)
print(revisionNum.group().split(":")[1])|1235207|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This worked for me in Python:

Get all the svn info:

<pre><code>svn_info = subprocess.check_output('svn info').decode("utf-8") 
print(svn_info)
</code></pre>

Do your search and split off the number:

<pre><code>revisionNum = re.search("Revision:\s\d+", svn_info)
print(revisionNum.group().split(":")[1])
</code></pre>

blocks|key|1450062|text|您可以通过将'svn+info+--+xml‘的输出解析为xml元素来以编程方式完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450063|def+get_svn_rev(dir:+Union[str,+Path])+->+str:
++++"""Get+the+svn+revision+of+the+given+directory"""
++++dir+=+str(dir)
++++svn_info_cmd+=+['svn',+'info',+'--xml',+dir]
++++print('+'.join(svn_info_cmd))
++++svn_info_process+=+subprocess.run(svn_info_cmd,+stdout=subprocess.PIPE,+stderr=subprocess.PIPE)
++++if+svn_info_process.returncode:
++++++++eprint(svn_info_process.stderr.decode().strip())
++++++++raise+subprocess.CalledProcessError(returncode=svn_info_process.returncode,+cmd=svn_info_cmd,
++++++++++++++++++++++++++++++++++++++++++++output=svn_info_process.stdout,
++++++++++++++++++++++++++++++++++++++++++++stderr=svn_info_process.stderr)
++++else:
++++++++info+=+ElementTree.fromstring(svn_info_process.stdout.decode().strip())
++++++++entry+=+info.find('entry')
++++++++revision+=+entry.get('revision')

++++return+revision|code-block|syntax|javascript|1450064|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You could do this programmatically by parsing the output from 'svn info --xml' to an xml Element:

<pre><code>def get_svn_rev(dir: Union[str, Path]) -&gt; str:
 """Get the svn revision of the given directory"""
 dir = str(dir)
 svn_info_cmd = ['svn', 'info', '--xml', dir]
 print(' '.join(svn_info_cmd))
 svn_info_process = subprocess.run(svn_info_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 if svn_info_process.returncode:
 eprint(svn_info_process.stderr.decode().strip())
 raise subprocess.CalledProcessError(returncode=svn_info_process.returncode, cmd=svn_info_cmd,
 output=svn_info_process.stdout,
 stderr=svn_info_process.stderr)
 else:
 info = ElementTree.fromstring(svn_info_process.stdout.decode().strip())
 entry = info.find('entry')
 revision = entry.get('revision')

 return revision
</code></pre>

blocks|key|1235397|text|重新回答，因为我在查找python+3的所有信息时遇到了麻烦。在python+3中，您可以使用以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235398|import+re

revstring+=+'$Revision:+123+$'
revnumber+=+re.sub(r'\D',+'',+revstring)|code-block|syntax|javascript|1235399|要使SVN替换该编号，必须设置file-keyword+"Revision“。您可以通过在终端中键入以下命令来实现此目的：|1235400|svn+propset+svn:keywords+Revision+YOURFILE.py|1235401|此外，在subversion配置文件中，必须将属性enable-auto-props设置为yes。这种情况应该已经出现了。在Tortoise+SVN中，可以通过单击常规设置选项卡中"subversion配置文件“旁边的”编辑“按钮来访问此配置文件。|offset|length|style|CODE|1235402|entityMap^0|0|0|0|0|P|H|19|3|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]|$M|Z|N|10|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

Re-answering because I had trouble finding all the information for python 3.
In python 3 you can use the following:

<pre class="lang-py prettyprint-override"><code>import re

revstring = '$Revision: 123 $'
revnumber = re.sub(r'\D', '', revstring)
</code></pre>

For SVN to replace the number, the file-keyword "Revision" has to be set. you achieve this by typing the following command into a terminal:

<pre><code>svn propset svn:keywords Revision YOURFILE.py
</code></pre>

Moreover, in the subversion configuration file the property <code>enable-auto-props</code> has to be set to <code>yes</code>. This should already be the case. In Tortoise SVN this config file can be accessed by clicking the button "edit" next to "subversion configuration file" in the general settings tab.

I have a python project under SVN, and I'm wanting to display the version number when it is run. Is there any way of doing this (such as automatically running a short script on commit which could update a version file, or querying an SVN repository in Python?)

Getting SVN revision number into a program automatically

我在SVN下有一个python项目，我想在它运行时显示版本号。有什么方法可以做到这一点(比如在提交时自动运行一个简短的脚本来更新版本文件，或者在Python中查询SVN存储库？)

问自动获取程序中的SVN修订号
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