On 01/12/2013 05:11 PM, [email protected] wrote: > I'm trying to understand how the "Generic Linux Device" plugin of > QtCreator works and I've some questions to ask, to understand if it > already does what I need or if I need to fork it and customize for my > needs.
Note that this question should really go to the Creator mailing list; see http://lists.qt-project.org/mailman/listinfo/qt-creator. Staying on this one for now. > 1) I'm trying to use the "Generic Linux Device" feature of QtCreator 2.6 > to connect to another Linux machine and try to deploy and execute a Qt > application on it. > > The machine where I'm trying to deploy is a normal Xubuntu 12.10 with > SSH server installed. > >>From my working machine to that machine, I can SSH without any > problem, but from the "Generic Linux Device" panel I cannot connect > and I get this error during the configuration testing: > > Connecting to host... > SSH connection failure: Timeout waiting for reply from server. > Device test failed. This means the authentication was not completed within the timeout you set in the device configuration. Usually, it's due to one of these reasons: a) The server is slow to answer and the default timeout of 10 seconds is not enough. b) The server's identification string is non-compliant, leading us to never progress to the actual authentication. In the case of a), simply increase the timeout. I have only really seen b) with some ancient OpenSSH versions, so it seems unlikely that this happens on Ubuntu 12.10. Plus, Creator >= 2.6 tries to handle this in a better way, telling you explicitly about the problem. > I tried to give a look to auth.log in the remote machine and this is what I > see: > > Dec 16 16:41:01 andrea-1215P sshd[2317]: pam_ecryptfs: > pam_sm_authenticate: /home/andrea is already mounted > Dec 16 16:41:01 andrea-1215P sshd[2317]: Accepted password for andrea > from 192.168.0.6 port 54187 ssh2 > Dec 16 16:41:01 andrea-1215P sshd[2317]: pam_unix(sshd:session): > session opened for user andrea by (uid=0) > Dec 16 16:41:01 andrea-1215P sshd[2428]: Received disconnect from > 192.168.0.6: 11: > Dec 16 16:41:01 andrea-1215P sshd[2317]: pam_unix(sshd:session): > session closed for user andrea Hm, the disconnect happens right after the authentication succeeded. Is this by any chance exactly 10 seconds after the initial contact to the server? > Do you have any idea about how to make this work? > How the remote machine should be configured to accept connections from > this plugin? There is no magic involved. An SSH server needs to be running, that's all. > 2) If I had to execute the previous task manually, without using a > plugin, I would use scp to copy the compiled binary to the remote > device: is this a task that the plugin is expected to do or I need to > customize it someway? If I need to customize it: how? There is a pre-configured upload step in the plugin, which uses SFTP. See the deployment part of your project for the details. This currently works only for qmake-based projects. The files to deploy are specified via the .pro file's INSTALLS variable. > 3) The second step I expect after building and deploying a binary is > to remotely execute the application: normally I would ssh into the > device/machine and I would run the app displaying it in the running > "graphic server". Is it something that the plugin already does? How I > could do it manually? See the run configuration of your project. > 4) where can I find the source code of these plugins? I can clone the > source code of Qt5 where QtCreator is, but what is the folder where I > can find just the plugins? The sources are here: http://qt.gitorious.org/qt-creator. Christian _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
