Different layers with same layer name

[quantumcode-martin]

Hi, thanks for the amazing work on tippecanoe, such a great tool!

I have encounter an edge case I would like to discuss.
I have this file structure:

├── sources
│   ├── a
│   │   ├── layer_one.geojson
│   │   └── layer_two.geojson
│   └── b
│       ├── layer_one.geojson
│       └── layer_two.geojson

I run

tippecanoe -o test.mbtiles sources/*/*.geojson

I was hopping the result would be 2 layers named layer_one and layer_two.

But the output gives:

For layer 0, using name "layer_one"
For layer 1, using name "layer_two"
For layer 2, using name "layer_one"
For layer 3, using name "layer_two"

And as stated I end up with 4 layers, with some of them sharing the same name (I don't know if it's ok for tile layers to share the same name, seems like it's working at least with mbview).

I was wondering if you think it's a good idea to modify this behavior so it is easier to merge files into separated layers.

[e-n-f]

Good catch! I agree that these should be getting merged into the same layer instead of having multiple layers with the same name. I'll take a look and see how straightforward it would be to make that change.