cloud functionsのimagemagickで使えるフォント

cloud functionsで画像に文字入れ込もうと思った際にフォントって何が使えるのかなーと思って調べてみた.

やり方

cloud functionsで以下のような処理入れてフォント一覧取得.

    const result = spawnSync('convert', ['-list', 'font']);
    res.send(result.stdout);

結果

Path: System Fonts
  Font: DejaVu-Sans
    family: DejaVu Sans
    style: Normal
    stretch: Normal
    weight: 400
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf
  Font: DejaVu-Sans-Bold
    family: DejaVu Sans
    style: Normal
    stretch: Normal
    weight: 700
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf
  Font: DejaVu-Sans-Mono
    family: DejaVu Sans Mono
    style: Normal
    stretch: Normal
    weight: 400
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf
  Font: DejaVu-Sans-Mono-Bold
    family: DejaVu Sans Mono
    style: Normal
    stretch: Normal
    weight: 700
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf
  Font: DejaVu-Serif
    family: DejaVu Serif
    style: Normal
    stretch: Normal
    weight: 400
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf
  Font: DejaVu-Serif-Bold
    family: DejaVu Serif
    style: Normal
    stretch: Normal
    weight: 700
    glyphs: /usr/share/fonts/truetype/dejavu/DejaVuSerif-Bold.ttf

結論

cloud functions自体が持っているフォントはそんな種類多くないので使いたいフォントがあれば別途用意する必要がありそう.