I need to generate hundreds of MBTiles from different shapefiles and same styles, so I created a xml from tilemill with a single shapefile and styling, using python landez library to generate MBTiles from this xml (keep changing datasource for each shapefile). Problem is landez is taking too long to create while tilemill is faster in exporting MBTiles, also through landez, few tiles are missing at different zoom levels (blank tile, so default color).
I was just wondering if this can be done using tilemill, (tilemill seems to export only projects).
PS: I want to do this process through terminal.