It boils down to this:
set(args --username MyUserName)
# sets args to a list with two elements
set(args "--username MyUserName")
# sets args to a list with one element: a string containing a space
execute_process(COMMAND blah ${args})
# calls the command "blah" expanding the n-element CMake list variable
"args" such that each list element is a separate arg to
execute_process, and hence a separate arg to the blah command
HTH,
David
On Wed, Jul 13, 2011 at 4:20 PM, <[email protected]> wrote:
> That works! Thanks!
>
> Any idea why the other way was causing issues?
>
> Aaron Meadows
>
>
> -----Original Message-----
> From: David Cole [mailto:[email protected]]
> Sent: Wednesday, July 13, 2011 1:06 PM
> To: Meadows, Aaron C.
> Cc: [email protected]
> Subject: Re: [CMake] Issues with execute_process and svn
>
> 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, <[email protected]> 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
>> [email protected]
>> 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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>>
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>
> 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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