Installing a custom dependency with rosdep

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Hello,

I have a Ros package (let's call it myRosPkg) which depends on a custom version of a python module (that we call myCustomPkg). This python module is on a forked github repository.

I would like rosdep to automatically install this dependency.

To do so, here is what I have done (following the instructions given here and here.

1. Created a custom_deps.yaml with the following content:

myCustomPkg:
    ubuntu: |
        pip install git+https://github.com/user/repo.git@master

2. Append this file to /etc/ros/rosdep/sources.list.d/20-default.list

echo file://$(readlink -f custom_deps.yaml) >> /etc/ros/rosdep/sources.list.d/20-default.list

3. Update rosdep and check install (this is where it fails)

> rosdep update
...
> rosdep resolve myCustomPkg --os=ubuntu:xenial
rosdep detected OS: [elementary] aliasing it to: [ubuntu]
#apt
pip install git+https://github.com/user/repo.git@master

> rosdep check myRosPkg --os=ubuntu:xenial -i
rosdep detected OS: [elementary] aliasing it to: [ubuntu]
System dependencies have not been satisified:
apt pip
apt install
apt git+https://github.com/user/repo.git@master

Is there something wrong I did ? (maybe rosdep is not parsing the command as a multiline string?)

Thanks in advance :)