problem using svn command

Question

3.00/5 (1 vote)

See more:

Hi i have a problem using svn command in code behind :

C#

public void SvnDiff(int rev1, int rev2)
        {
            try
            {
                var p = new Process();
                p.StartInfo.UseShellExecute = false;
                p.StartInfo.RedirectStandardOutput = true;
                p.StartInfo.FileName = "svn";
                string arg = string.Format("diff -r {0}:{1} --summarize --xml > SvnDiff.xml", rev1, rev2);
                Console.WriteLine(arg);
                p.StartInfo.Arguments = arg;
                p.Start();
                p.WaitForExit();
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }
        }

When i use this command in cmd, it's working fine.
svn diff -r 2882:2888 --summarize --xml > SvnDiff.xml

but when i run my method i got this message:
svn: E020024: Error resolving case of '>'

What can i do right now to solve this ?
Thanks for any advice

Posted 28-Mar-13 12:24pm

ZabaaZul

Add a Solution

Comments

Sergey Alexandrovich Kryukov 28-Mar-13 18:53pm

Pretty straightforward exception message, isn't it? You could easily find a solution just by looking at System.Diagnostic.Process documentation a bit more thoroughly...
—SA

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Accepted Answer · 2013-03-28T12:51:00

This is because of that pipe symbol, which is not valid for programmatic use of the shell's process start, which requires just the application or data file:
http://msdn.microsoft.com/en-us/library/53ezey2s.aspx[^].

Note that the pile is also not a part of command line arguments, that makes the problem.

Instead, remove the pipe and redirect the stream System.Diagnostics.Process.StandardInput (and, just in case, System.Diagnostics.Process.StandardError). You will find the code sample with redirection here:
http://msdn.microsoft.com/en-us/library/system.diagnostics.process.standardoutput.aspx[^].

By the way, it will free you from creation of temporary file you tried to use for piping, which is always an extra hassle. You redirect the stream and do with redirected data whatever you want, parse it immediately, etc.

This will solve your problem. However, if our really need a "real" programming interface to Subversion, please see this CodeProject article: Accessing the Subversion repository from .NET using DotSVN[^].

It uses .NET library DotSVN:
http://en.wikipedia.org/wiki/DotSVN[^],
http://www.dotsvn.net/[^].

—SA