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Re: Subversion 1.8 "--non-interactive" and "--force-interactive" flags behavior

From: Mark Phippard <markphip_at_gmail.com>
Date: Mon, 5 Aug 2013 10:12:10 -0400

On Mon, Aug 5, 2013 at 10:03 AM, Branko Čibej <brane_at_wandisco.com> wrote:
> On 05.08.2013 12:14, Konstantin Kolosovsky wrote:
>> Hi Everyone,
>> I've got a question about "--non-interactive" and
>> "--force-interactive" flags behavior in Subversion 1.8.
>> I'm not subscribed to the mailing list, please put my email in Cc in
>> any responses.
>> We've got java application interacting with svn.exe command line
>> utility. For Subversion 1.7 our authentication behavior was the following:
>> - executing command using svn.exe, for instance "svn udpate"
>> - getting "authentication realm" from process output
>> - destroying process
>> - creating correct credential cache for the obtained "authentication
>> realm" (for instance, correct file with encrypted password in the
>> "auth" folder for Windows)
>> - executing command using svn.exe once again - so that authentication
>> goes smoothly as necessary information is in credential cache
>> With Subversion 1.8 client we can not get "authentication realm" to
>> create correct credential cache information:
>> - if not specifying "--force-interactive" flag or specifying
>> "--non-interactive" flag - process output contains authentication
>> failure message, but only with repository url - not the
>> "authentication realm"
>> - if specifying "--force-interactive" flag - process "hangs" not
>> providing any output - so there is no way to get "authentication
>> realm" from it and then destroy the process
>> So the question is - is it possible to somehow return previous
>> behavior of svn.exe client - so that it does not "hang" but just
>> "waiting" for the "user input" providing necessary "authentication
>> realm" in the output?
>> Or what would you recommend in such situation when authentication is
>> necessary when interacting with svn.exe utility from java application?
>> Is directly specifying "--username" and "--password" keys the only
>> available option?
> If you use --force-interactive, you're telling Subversion to prompt the
> terminal, if any -- as of 1.8, prompting on stdin/stderr is only the
> last resort. So for scripting the command-line client the way you're
> doing, I'd recommend to pass --non-interactive and --username and
> --password.
> The better option of course is to just use the JavaHL API instead.

I have seen this problem as well. We have a Java server application
that scripts the command line so that it can retrieve and accept the
SSL certificate. We added the new --force-interactive option but the
problem is that the prompting seems to happen in the process that
started the Java server application instead of in the application
itself. So it is no longer possible to capture the command line output
with the certificate details and accept it.

Personally, I think this is a regression and not an improvement.

Mark Phippard
Received on 2013-08-05 16:12:43 CEST

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