[cmake-developers] Server handshake with only build directory

[Rich Chiodo]

If you have the build directory, can’t you just parse the CmakeCache.txt? CMAKE_HOME_DIRECTORY in the cache is the source folder. Seems easier than writing something to talk to CMake server.


From: cmake-developers [mailto:cmake-developers-bounces at cmake.org] On Behalf Of Isaiah Norton
Sent: Monday, January 22, 2018 8:43 AM
To: Tobias Hunger <tobias.hunger at gmail.com>
Cc: CMake Developers <cmake-developers at cmake.org>
Subject: Re: [cmake-developers] Server handshake with only build directory

Hi Tobias,

That makes sense when the goal is the IDE driving the configuration. But I'm not trying to use this for the IDE to drive the configuration, I only want to query the build directory in order for the IDE to learn about it. AFAIK the only way to change either one of these properties is to delete the build and start over, so again, they should be fully-determined in a configured directory.

Isaiah

On Mon, Jan 22, 2018 at 11:04 AM, Tobias Hunger <tobias.hunger at gmail.com<mailto:tobias.hunger at gmail.com>> wrote:
Hi Isaiah,

the idea was to make sure the IDE and cmake agree on the settings
being used and to make it very explicit what is going to be used.

Best Regards,
Tobias

On Mon, Jan 22, 2018 at 4:54 PM, Isaiah Norton <isaiah.norton at gmail.com<mailto:isaiah.norton at gmail.com>> wrote:
> I'd like to use cmake server with only a build directory argument (mostly in
> order to query the cache), but receive an error in return:
>
> ```
>> cmake --version
> cmake version 3.9.4
>
>> cmake -E server --experimental --debug
>
>> [== "CMake Server" ==[
>> {"cookie":"zimtstern","type":"handshake","protocolVersion":{"major":1},
>> "buildDirectory":"/opt/bld/s5nj/Slicer-build"
>> }
>> ]== "CMake Server" ==]
>
> [== "CMake Server" ==[
> {"cookie":"zimtstern","errorMessage":"Failed to activate protocol version:
> \"CMAKE_HOME_DIRECTORY\" is set but incompatible with configured source
> directory value.","inReplyTo":"handshake","type":"error"}
> ]== "CMake Server" ==]
> ```
>
> The docs example with source and generator arguments works -- but shouldn't
> the build directory fully determine these options for an already-configured
> build tree?
>
> Thanks,
> Isaiah
>
>
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