Move to template files for colors

[dylanaraps]

Move to template files for colors

[dylanaraps]

This is dead simple and doesn't require anything external: https://stackoverflow.com/a/6385940

(That method also works well with #16 since the colors are now stored in dicts.)

[dylanaraps]

Actually, a better method is probably something like this:

def template(colors, input_file, export_file):
    """Read template file, substitute markers and
        save the file elsewhere."""

    # Import the template.
    with open(input_file) as file:
        template_data = file.readlines()

    # Format the markers.
    template_data = "".join(template_data).format(*colors)

    # Export the template.
    with open(export_file, "w") as file:
        file.write(template_data)

Since the function is rather generic we can loop it over the template directory removing the need for the export_colors.py and format_colors.py files. Adding a new export file will be as easy as adding a new file to the templates directory, wal will see it on next run and update the cache dir.

The markers are rather verbose now {index} but the change to json and dicts will most likely fix this. https://stackoverflow.com/questions/5952344/how-do-i-format-a-string-using-a-dictionary-in-python-3-x

Example template file:

/* '{}' need to be escaped if they're not markers. 
   You can escape them by doubling them '{{', '}}' */
:root {{
	--color0: {0};
	--color1: {1};
	--color2: {2};
	--color3: {3};
	--color4: {4};
	--color5: {5};
	--color6: {6};
	--color7: {7};
	--color8: {8};
	--color9: {9};
	--color10: {10};
	--color11: {11};
	--color12: {12};
	--color13: {13};
	--color14: {14};
	--color15: {15};
}}

[dylanaraps]

See #18