fontforge 精简 fontawesome 字体

font.py

# 需要使用 fontforge 的 ffpython 执行
import fontforge
# 可以在 fontawesome.com 找到 glyph ，字体里面 glyphname 加了 uni 前缀
glyphs = [
    "unif09a", #facebook
    "unif099", #twitter
    "unif16d", #instagram
    "unie07b", #tiktok
    "unif09b", #github
    "unif167", #youtube
    "unif2c6", #telegram
    "unif0d2", #pinterest
    "unif1b6", #steam
]

font = fontforge.open("C:\\Users\\aaa\\Downloads\\fontawesome-free-6.4.2-web\\webfonts\\fa-brands-400.woff2")
assert isinstance(font, fontforge.font)
selection = font.selection
assert isinstance(selection, fontforge.selection)
selection.all()
names = []
for i in selection.byGlyphs:
    assert isinstance(i, fontforge.glyph)
    print(i.glyphname)
    gly = i.glyphname.lower()
    if gly not in glyphs:
        font.removeGlyph(i)
    else:
        names.append(i.glyphname)
font.generate("C:\\Users\\aaa\\Downloads\\fontawesome-free-6.4.2-web\\webfonts\\fa-brands-400-sub.woff2")

参考这篇文章

或者可以通过 fantasticon 从 svg 文件直接生成字体，这样更方便，参考这篇文章。