use "push" with sub_directory

[n1xn]

Can somebody explain me what I am doing wrong here? I want to pull a subdirectory from my repository (later in CI) and for this I have set sub_directory. I have successfully provisioned the server with deployer - really nice experience, great work - especially with the overrides! Now I would like to push the local state to the server, but I am getting errors.

- repo
   - laravel
      - deploy.php

set('repository', 'https://github.com/user/repo.git');
set('sub_directory', 'laravel');     // <--- pull only laravel dir
set('application', 'app');
set('deploy_path', '~/{{application}}');

cd repo/laravel && vendor/bin/dep push     # <--- executing from repo/laravel

task push
[IP] info uploading:
[IP]  - laravel/composer.json
[IP]  - laravel/composer.lock
[IP]  error  in push.php on line 16:
[IP] run rsync '-azP' '--relative' '-e' 'ssh '\''-A'\'' '\''-o'\'' '\''ControlMaster=auto'\'' '\''-o'\'' '\''ControlPersist=60'\'' '\''-o'\'' '\''ControlPath=~/.ssh/deployer@IP'\''' 'laravel/composer.json' 'laravel/composer.lock' 'deployer@IP:~/app/current'
[IP] err rsync: link_stat "/ABSOLUTE_PATH/app/laravel/laravel/composer.json" failed: No such file or directory (2)
[IP] err rsync: link_stat "/ABSOLUTE_PATH/app/laravel/laravel/composer.lock" failed: No such file or directory (2)
[IP] err rsync error: some files could not be transferred (code 23) at /AppleInternal/Library/BuildRoots/810eba08-405a-11ed-86e9-6af958a02716/Library/Caches/com.apple.xbs/Sources/rsync/rsync/main.c(996) [sender=2.6.9]
[IP] building file list ...
[IP] 0 files to consider
[IP] sent 29 bytes  received 20 bytes  98.00 bytes/sec
[IP] total size is 0  speedup is 0.00
[IP] exit code 23 (Unknown error)

It seems to me that rsync wants to upload a non existent path because it prefixed twice laravel for composer.json and composer.lock. But I don't know how to fix this.

[n1xn]

I went into push command and understood that it just uploads the git diff. To conclude, I first had to pull the repo on remote.