#!/bin/bash
#
# This selects your default screen font from among the ones in
# /usr/share/kbd/consolefonts.
#

# Load defaults. See /etc/default/rc.font to set a custom font
# or for other options.
if [ -r /etc/default/rc.font ]; then
  . /etc/default/rc.font
fi

# IF FONT=none (or is unset), exit leaving the existing console font alone:
[ "$FONT" = "none" -o -z "$FONT" ] && exit 0

if [ "$FONT" = "auto" ]; then
  # Exit if the kernel command line contains "nomodeset"
  cat /proc/cmdline | grep -wq nomodeset && exit 0
  # Trim leading and trailing whitespace from the font list:
  TRYFONTS="${TRYFONTS#"${TRYFONTS%%[![:space:]]*}"}"
  TRYFONTS="${TRYFONTS%"${TRYFONTS##*[![:space:]]}"}"
  # Exit if there's no font list:
  [ -z "$TRYFONTS" ] && exit 1
  # Select the first (smallest) font. We'll find the largest font in the list
  # that provides enough columns.
  font=$(echo $TRYFONTS | cut -f 1 -d " ")
  # Shift the first font away. We only try it once.
  if echo $TRYFONTS | grep -q " " ; then
    TRYFONTS="$(echo $TRYFONTS | cut -f 2- -d " ")"
  else
    TRYFONTS=""
  fi
  # Save a copy of the font list in case we do a second pass.
  TRYCOPY=$TRYFONTS
  prevfont=$font
  setfont $font
  # Leave if setfont can't load the first font.
  if [ ! $? = 0 -o "$(tput cols)" -lt "$MINCOLS" ]; then
    # Revert to system default:
    setfont -R
    exit 1
  fi
  prevcolumns=$(tput cols)
  for font in $TRYFONTS ; do
    setfont $font
    if [ "$(tput cols)" -lt "$MINCOLS" ]; then
      # Too big, the previous font is the closest one:
      break;
    fi
    prevfont=$font
    prevcolumns=$(tput cols)
    prevdouble=""
  done
  # Restore the font list:
  TRYFONTS=$TRYCOPY
  # If we made it all the way through that list, let's try another pass using
  # doubled fonts:
  if [ "$prevfont" = "$(echo $TRYFONTS | rev | cut -f 1 -d " " | rev)" ]; then
    for font in $TRYFONTS ; do
      setfont -d $font
      if [ "$(tput cols)" -lt "$MINCOLS" ]; then
        # Too big, the previous font is the closest one:
        break;
      fi
      prevfont=$font
      prevcolumns=$(tput cols)
      prevdouble=" -d "
    done
  fi
  # Load the font:
  echo "Loading console font ($prevfont, $prevcolumns columns):"
  if [ "$APPLY_NEW_FONT_ON_ALL_CONSOLES" = "true" ]; then
    for tty in /dev/tty[1-63] ; do
      setfont -C $tty $prevdouble $prevfont 2> /dev/null
    done
    setfont -v $prevdouble $prevfont
  else
    setfont -v $prevdouble $prevfont
  fi
else
  # Set the font to the requested font, $FONT:
  setfont $FONTDOUBLE $FONT
  echo "Loading custom console font ($FONT, $(tput cols) columns):"
  if [ "$APPLY_NEW_FONT_ON_ALL_CONSOLES" = "true" ]; then
    for tty in /dev/tty[1-63] ; do
      setfont -C $tty $FONTDOUBLE $FONT 2> /dev/null
    done
    setfont -v $FONTDOUBLE $FONT
  else
    setfont -v $FONTDOUBLE $FONT
  fi
fi