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blomarchy/bin/blob-font-set
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#!/bin/bash
# blob:summary=Set the system monospace font
# blob:args=<font-name>
# blob:examples=blob font list | blob font set "CaskaydiaMono Nerd Font"
usage() {
echo "Usage: blob-font-set <font-name>"
}
font_name="${1:-}"
case "$font_name" in
-h|--help)
usage
exit 0
;;
"")
usage >&2
exit 1
;;
esac
if ! fc-list | grep -Fqi -- "$font_name"; then
echo "Font '$font_name' not found."
exit 1
fi
if [[ -f ~/.config/alacritty/alacritty.toml ]]; then
sed -i "s/family = \".*\"/family = \"$font_name\"/g" ~/.config/alacritty/alacritty.toml
fi
if [[ -f ~/.config/kitty/kitty.conf ]] || blob-cmd-present kitty; then
mkdir -p ~/.config/kitty
if grep -qE '^[[:space:]]*font_family[[:space:]]+' ~/.config/kitty/kitty.conf 2>/dev/null; then
kitty_font_name=$(printf '%s' "$font_name" | sed 's/[\\&/]/\\&/g')
sed --follow-symlinks -i -E "s/^[[:space:]]*font_family[[:space:]]+.*/font_family $kitty_font_name/" ~/.config/kitty/kitty.conf
else
printf '\nfont_family %s\n' "$font_name" >>~/.config/kitty/kitty.conf
fi
pkill -USR1 kitty
fi
if [[ -f ~/.config/ghostty/config ]]; then
sed -i "s/font-family = \".*\"/font-family = \"$font_name\"/g" ~/.config/ghostty/config
pkill -SIGUSR2 ghostty
fi
if [[ -f ~/.config/foot/foot.ini ]]; then
sed -i "s/^font=.*/font=$font_name:size=9/g" ~/.config/foot/foot.ini
fi
# fontconfig is the canonical source of truth — the blob shell, Qt apps,
# and anything resolving "monospace" all read from here. This file is loaded
# after the package-owned default, and prepend_first puts the chosen family at
# the head of the list so it wins over the family that default prefers.
fontconfig_file="$HOME/.config/fontconfig/fonts.conf"
mkdir -p "$(dirname "$fontconfig_file")"
cat >"$fontconfig_file" <<XML
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<match target="pattern">
<test name="family" qual="any">
<string>monospace</string>
</test>
<edit name="family" mode="prepend_first" binding="strong">
<string>$font_name</string>
</edit>
</match>
</fontconfig>
XML
blob-shell-restart
if pgrep -x ghostty; then
blob-notify-send -g "You must restart Ghostty to see font change"
fi
if pgrep -x foot; then
blob-notify-send -g "You must restart Foot to see font change"
fi
blob-hook font-set "$font_name"