Bash script to install the latest version of Nerd Fonts (https://www.nerdfonts.com) from its GitHub repository.

nerd-fonts-update.bash

#!/usr/bin/env bash

# Copyright © 2020 Antonio Hernández Blas <hba.nihilismus@gmail.com>
# This work is free. You can redistribute it and/or modify it under the
# terms of the Do What The Fuck You Want To Public License, Version 2,
# as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.
#
# This program is free software. It comes without any warranty, to
# the extent permitted by applicable law. You can redistribute it
# and/or modify it under the terms of the Do What The Fuck You Want
# To Public License, Version 2, as published by Sam Hocevar. See
# http://www.wtfpl.net/ for more details.

set -e

mkdir -p $HOME/.local/share/fonts/nerd-fonts
cd $HOME/.local/share/fonts/nerd-fonts

wget -o /dev/null -O - "https://github.com/ryanoasis/nerd-fonts/releases/latest" 2>/dev/null \
  | grep -E 'ryanoasis/nerd-fonts/releases/download/.*/.*\.zip' \
  | sed 's|^.*ryanoasis/|https://github.com/ryanoasis/|' \
  | sed 's|\.zip".*$|.zip|' \
  | grep -v 'MPlus.zip' \
  | grep -v 'Noto.zip' \
  > nerd-fonts.url

last_release="$(basename $(dirname $(head -1 nerd-fonts.url)))"

if [ -z "$last_release" ]; then
  echo " Nerd Fonts last release could not be resolved."
  exit 1
fi

if [ -f "$last_release.done" ]; then
  echo " Nerd Fonts $last_release already installed."
  exit 0
fi

set -u

# Download ZIP files
wget -ci nerd-fonts.url

# Delete old fonts, if any.
rm -f *.ttf *.TTF *.otf *.OTF

# Uncompress all ZIP files
for zipfile in *.zip; do
  unzip -o "$zipfile" || true
done

# Delete all ZIP files
rm -f *.zip

# Delete Windows Fonts
find . -iname "*Windows*Compatible*" -exec rm -f {} \;

# Prefer OTF over TTF
ls -1 *.ttf 2>/dev/null | while read ttf_file; do
  otf_file="$(echo $ttf_file | sed 's/\.ttf$/.otf/')"
  if [ -f "${otf_file}" ]; then
    echo "rm -f ${ttf_file}"
    rm -f "${ttf_file}"
  fi
done

# Regenerate fontconfig's cache
fc-cache -rfv || true

rm -f nerd-fonts.url
rm -f *.done
touch $last_release.done