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#!/usr/bin/env bash
set -euo pipefail
if ! command -v qrencode &> /dev/null; then
exit 1
fi
schema="utf8i"
# Detect if tty
if TTY="$(tty)"; then
# Detect if true tty (not pty)
if [[ "$TTY" =~ ^/dev/tty[0-9]+$ ]]; then
# Detect current font from /etc/vconsole.conf
if CURRENT_FONT="$(grep "^FONT=" /etc/vconsole.conf)"; then
regex="^FONT=ter-([0-9])(.*)$"
if [[ $CURRENT_FONT =~ $regex ]]; then
CODEPAGES="${BASH_REMATCH[1]}"
SIZE_STYLE="${BASH_REMATCH[2]}"
if [ "$CODEPAGES" != "i" ]; then
# If not a font that supports the special characters needed for utf8i, set font to one that does
# If it fails, fallback to ANSI256
setfont "ter-i${SIZE_STYLE}" || schema="ANSI256"
fi
else
# Unknown font, use ANSI256
schema="ANSI256"
fi
fi
fi
fi
qrencode "$1" -m 0 -t "$schema"
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