lmao.sh

# @sevvie@collapse.pub:
# > here’s the script. I named it lmao.sh.

#!/bin/bash

top_text="LMAO"
bottom_text="BOTTOM TEXT"
font=Impact
fill=white
stroke=black
strokewidth=0
caption_height=0

usage() {
  echo "Usage: $0 [-t TOP_TEXT] [-b BOTTOM_TEXT] [-f FONT] [-l FILL_COLOR] [-s STROKE_COLOR] [-w STROKE_WIDTH] SRC DEST"
}

failure() {
  usage
  exit 1
}

while getopts "hb:t:f:l:s:w:" opt; do
  case ${opt} in
    b) bottom_text=$OPTARG;;
    t) top_text=$OPTARG;;
    f) font=$OPTARG;;
    l) fill=$OPTARG;;
    s) stroke=$OPTARG;;
    w) strokewidth=$OPTARG;;
    h) usage; exit 0;;
    :) failure;;
    *) failure;;
  esac
done

shift $((OPTIND -1))

if [ -z $1 ] || [ -z $2 ]; then
  failure
fi

width=$(identify -format %w $1)
height=$(identify -format %h $1)
caption_height=$(echo "$width / 8" | bc)
if [ "0" == $strokewidth ]; then
  strokewidth=$(echo "$width / 300" | bc)
fi

convert $1 \
  -background none \
  -font $font \
  -fill $fill \
  -stroke $stroke \
  -strokewidth $strokewidth \
  -size "${width}x${caption_height}" \
    -gravity north caption:"${top_text}" -composite \
    -gravity south caption:"${bottom_text}" -composite \
  $2