gen-input-mono-nf.py

#!/usr/bin/env python3
#
# git clone https://github.com/ryanoasis/nerd-fonts && cd nerd-fonts
# curl -O <this script>
# mkdir incomplete
# find ~/Downloads/Input-Font/Input_Fonts/InputMono/InputMono -name '*.ttf' | parallel fontforge -script font-patcher --mono --adjust-line-height --quiet --outputdir incomplete {}
# mkdir complete
# find ~/Downloads/Input-Font/Input_Fonts/InputMono/InputMono -name '*.ttf' | parallel fontforge -script font-patcher --mono --adjust-line-height --quiet --complete --outputdir complete {}
# python3 gen-input-mono-nf.py
# rm -rf incomplete complete

import fontforge
import sys

families = ["InputMonoNarrow"]
full_families = {
    "InputMono": "Input Mono",
    "InputMonoCompressed": "Input Mono Compressed",
    "InputMonoCondensed": "Input Mono Condensed",
    "InputMonoNarrow": "Input Mono Narrow"
}

variants = [None, "Black", "BlackIta", "Bold", "BoldIta", "ExLight", "ExLightIta", "Italic", "Light", "LightIta", "Medium", "MediumIta"]
full_variants = {
    None: "Regular",
    "Black": "Black",
    "BlackIta": "Black Italic",
    "Bold": "Bold",
    "BoldIta": "Bold Italic",
    "ExLight": "Extra Light",
    "ExLightIta": "Extra Light Italic",
    "Italic": "Italic",
    "Light": "Light",
    "LightIta": "Light Italic",
    "Medium": "Medium",
    "MediumIta": "Medium Italic",
}

def gen_fixed_font(family, variant=None):
    full_family = full_families[family]
    if not variant:
        filename = f"{family} Nerd Font"
        fontname_suffix = ""
        fullname_suffix = ""
    else:
        filename = f"{family} {variant} Nerd Font"
        fontname_suffix = f"-{full_variants[variant].replace(' ', '')}"
        fullname_suffix = f" {full_variants[variant]}"

    incomplete_font = fontforge.open(f"incomplete/{filename} Mono.ttf")
    complete_font = fontforge.open(f"complete/{filename} Complete Mono.ttf")

    incomplete_font.selection.select("u0237")
    incomplete_font.copy()
    complete_font.selection.select("u0237")
    complete_font.paste()

    complete_font.familyname = f"{full_family} NF"
    complete_font.fontname = f"{family}NF{fontname_suffix}"
    complete_font.fullname = f"{complete_font.familyname}{fullname_suffix}"
    complete_font.appendSFNTName("English (US)", "UniqueID", f"0.000;FBI ;{complete_font.fontname}")
    complete_font.appendSFNTName("English (US)", "Preferred Family", complete_font.familyname)
    complete_font.appendSFNTName("English (US)", "Preferred Styles", full_variants[variant])
    complete_font.sfnt_names = tuple(x for x in complete_font.sfnt_names if x[1] != "Compatible Full")

    if not variant:
        complete_font.appendSFNTName("English (US)", "SubFamily", "Regular")
        complete_font.generate(f"fixed/{complete_font.fontname}-Regular.ttf")
    else:
        complete_font.generate(f"fixed/{complete_font.fontname}.ttf")

if len(sys.argv) != 2:
    exit(1)

for variant in variants:
    gen_fixed_font(sys.argv[1], variant)