[CMake] Issues with execute_process and svn

Wed Jul 13 16:20:31 EDT 2011

That's not what I'm using it for, but thanks for the suggestion.

Aaron Meadows

From: Jean-Christophe Fillion-Robin [mailto:jchris.fillionr at kitware.com]

Sent: Wednesday, July 13, 2011 1:49 PM
To: David Cole
Cc: Meadows, Aaron C.; cmake at cmake.org
Subject: Re: [CMake] Issues with execute_process and svn

Hi Aaron, 

Not sure if ti will help, but .... 
Have you looked at using ExternalProject.cmake to checkout, configure
and build project using CMake ? 

Hth
Jc

On Wed, Jul 13, 2011 at 2:05 PM, David Cole <david.cole at kitware.com>
wrote:

Take the double quotes off the set commands for your args variables.
And put spaces in between the dereferences of those vars in the
execute_process command.

Like this:

# No double quotes here:
if(NOT $ENV{CMAKE_SVN_USERNAME} STREQUAL "")
 set(_SvnCredPart --no-auth-cache)
 set(_SvnUserPart --username $ENV{CMAKE_SVN_USERNAME})
endif()
if(NOT $ENV{CMAKE_SVN_PASSWORD} STREQUAL "")
 set(_SvnCredPart --no-auth-cache)
 set(_SvnPassPart --password $ENV{CMAKE_SVN_PASSWORD})
endif()

# Spaces in between dereferenced vars here:
execute_process(COMMAND "${svnexe}" --non-interactive
 ${_SvnCredPart} ${_SvnUserPart} ${_SvnPassPart}
 info .
 OUTPUT_VARIABLE _out
 ERROR_VARIABLE _err
 RESULT_VARIABLE _res)

message(STATUS "out: ${_out}")
message(STATUS "err: ${_err}")
message(STATUS "res: ${_res}")

HTH,
David

On Wed, Jul 13, 2011 at 1:57 PM,  <aaron.meadows at thomsonreuters.com>
wrote:
> Hi all,
>
>
>
> I've been having a devil of a time with executing SVN with
execute_process.
> Basically, I need to read environment variables to specify the
username and
> password for builds on our build server (where we do not cache
credentials).
>
>
>
> I've made several attempts at this, and have been foiled continually
by one
> problem, exemplified in the attached CMakeLists.txt.  If I build
arguments
> in variables and then specify them in the execute_process, I get an
error
> like this:
>
>
>
> -- err: svn.exe: invalid option: --no-auth-cache --username foo
--password
> bar
>
> Type 'svn help' for usage.
>
>
>
> However, if I write the identical command to a file and execute that,
I get
> no issue.  I've narrowed it down to the <space> between --username and
foo,
> but can't seem to figure out what the deal is.  I've tried replacing
them
> with a value from string(ASCI 32 _sep), but that didn't change the
> behavior.  I've tried this on Windows 7 and Windows Server 2008, and
both
> behave the same way.
>
>
>
> You can try these two methods out on the CMakeLists.txt.  By default,
it
> will use the straight execute_process.  If you call cmake with -D
TestFile=1
> it will write the commands to a file and execute that.  (in which case
> you'll get svn: '.' is not a working copy and not the invalid option
issue)
>
>
>
> Thanks for any help you can provide!
>
>
>
> Aaron Meadows
> Software Engineer
>
> Thomson Reuters
>
> Phone: 314.468.3530
> Mobile: 636.541.6139
> aaron.meadows at thomsonreuters.com
> thomsonreuters.com
>
>
>
> This email was sent to you by Thomson Reuters, the global news and
> information company. Any views expressed in this message are those of
the
> individual sender, except where the sender specifically states them to
be
> the views of Thomson Reuters.

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