Patch sources of a Mapbox GL style with settings from style and purge private details

patch_mapbox_gl_style.py

import json
import sys


if __name__ == '__main__':
    if len(sys.argv) >= 2:
        style_src = sys.argv[1]
        patch_src = sys.argv[2]
    else:
        print('patch_mabpox_gl_style.py <style> <patch-src>')
        sys.exit(1)

    with open(style_src) as style_fh:
       with open(patch_src) as patch_fh:
            style_doc = json.load(style_fh)
            patch_doc = json.load(patch_fh)

            style_doc["sources"] = patch_doc["sources"]
            style_doc["sprite"] = patch_doc["sprite"]
            style_doc["glyphs"] = patch_doc["glyphs"]

            del style_doc["created"]
            del style_doc["id"]
            del style_doc["modified"]
            del style_doc["owner"]
            del style_doc["draft"]

            print(json.dumps(style_doc, sort_keys=True, indent=4))