Create swarm subdirectories as necessary

[xsebek]

• fixes Crash after completing the first step of the tutorial #941

[kostmo]

I take it that the empty string represents "no subdirectory", i.e. the "current directory"? Perhaps a Maybe would convey the intentions better.

[xsebek]

It's how path works - a//./ is the same as a.

A good solution might be to use a different function or make a proper ADT type for our sources. 🤔

We should refactor this code and document it better, but let’s do that in a new PR.

[byorgey]

@xsebek what's the status of this? Were you going to do more testing or can it be merged?

[xsebek]

@byorgey it definitely needs to be tested, because it is wrong! 😅

swarm: /root/.local/share/swarm/history: openFile: inappropriate type (Is a directory)

swarm: YamlException "could not open file for write: /root/.local/share/swarm/achievements"

[xsebek]

Now it works in a fresh ubuntu:bionic container:

root@swarm-run:/# tree -L 2 ~/.local/share/swarm
/root/.local/share/swarm
|-- achievements
|-- data
|   |-- about.txt
|   |-- adjectives.txt
|   |-- entities.yaml
|   |-- logo.txt
|   |-- names.txt
|   |-- recipes.yaml
|   |-- scenarios
|   `-- schema
|-- history
`-- saves
    |-- Tutorials_backstory.yaml
    `-- Tutorials_move.yaml

4 directories, 10 files