Simple quick hack to make it display year/month/day on it's Dock::Efficient mode (24HourFormat only). Also some really little simple tweak to make it compilable without fetching the full dde-dock repo.

Current codebase is fork from dde-dock#39c1a6b. You can checkout the commit history and do a diff to see what I did changed.

You need do apt-get build-dep dde-dock first.

To compile:

# you should clone it first:
git clone https://github.com/BLumia/dde-dock-pineappledatetime.git && cd dde-dock-pineappledatetime/
# then build it
mkdir build
cd build/
cmake ../
make
# then you got `libpineappledatetime.so`
# this will copy this into `/usr/`
sudo make install