build

#!/bin/sh

set -e

if [ "$1" == "-h" -o "$1" == "--help" -o $# != 1 ]; then
  echo "Usage: ./build spickzettel | ./build --all | ./build --changed"
  echo "  --all      builds all cheat-sheats"
  echo "  --changed  builds only the cheat-sheats that have been changed according to git"
  exit 0
fi

function build() {
  mkdir -p output
  if pdflatex -interaction=nonstopmode -output-directory output "$1.tex"; then
    cp "output/$1.pdf" .
  else
    echo "\n  === ERROR WHILE COMPILING (SEE ABOVE) ===" >&1
    exit 1
  fi
}

if [ "$1" == "--all" -o "$1" == "-a" ]; then
  for file in *.tex; do
    build "${file%.*}"
  done
elif [ "$1" == "--changed" -o "$1" == "-c" ]; then
  for file in $(git status --porcelain | awk '(($1 == "M") && match($2, /\.tex$/)) { print $2 }'); do
    build "${file%.*}"
  done
else
  build "${1%.*}"
fi