fopub

#!/bin/bash

abspath() {
  PATH_REL_DIRNAME=`dirname "$1"`
  PATH_ABS_DIRNAME=`cd "$PATH_REL_DIRNAME"; pwd`
  PATH_BASENAME=`basename "$1"`
  if [ "$PATH_BASENAME" == "." ]; then
    echo "$PATH_ABS_DIRNAME"
  else
    echo "$PATH_ABS_DIRNAME/$PATH_BASENAME"
  fi
}

usage() {
  echo "Usage: $0 [-t <path>] [-f FORMAT] [-H] FILE"
  echo "Example: $0 -t /path/to/custom/docbook-xsl mydoc.xml"
}

sedi() {
  sed --version >/dev/null 2>&1 && sed -i -- "$@" || sed -i "" "$@"
}

CONVERT_ARGS=""

while getopts ':f:hHt:' opt; do
  case $opt in
    f)
      FORMAT=$OPTARG
      ;;
    h)
      usage
      exit 0
      ;;
    H)
      CONVERT_ARGS="-param hyphenate true"
      ;;
    t)
      DOCBOOK_XSL_DIR=$OPTARG
      ;;
    \?)
      echo "$0: unrecognized option '$1'"
      usage
      exit 1
  esac
done

shift $(( $OPTIND -1 ))

if [ ! -r "$1" ]; then
  echo "$0: You must specify a DocBook v4.5 or DocBook v5 XML source file as the first command argument"
  usage
  exit 1
fi

SOURCE_FILE="$1"
SOURCE_EXTENSION="${SOURCE_FILE##*.}"
shift

if [ "$SOURCE_EXTENSION" != "xml" ] && [ "$SOURCE_EXTENSION" != "fo" ]; then
  echo $0: Invalid source file name: "$SOURCE_FILE"
  echo "$0: The source file name must end in .fo (XSL-FO) or .xml (DocBook)"
  usage
  echo "Try \`asciidoctor -b docbook $1\` to convert your AsciiDoc source file to DocBook"
  exit 1
fi

if [ -z "$FORMAT" ]; then
  FORMAT=pdf
fi

PRG_DIR=`dirname "$0"`
PRG_ABS_DIR=`abspath "$PRG_DIR"`
GRADLEW_CMD="$PRG_DIR/gradlew"
FOPUB_DIR="$PRG_DIR/build/fopub"
FOPUB_ABS_DIR="$PRG_ABS_DIR/build/fopub"
FOPUB_CMD="$FOPUB_DIR/bin/fopub"
# APP_DIR allows this script to invoke a distributed version of the application
if [ -z "$APP_DIR" ]; then
  export APP_DIR="$FOPUB_DIR"
fi

if [ ! -e "$FOPUB_CMD" ]; then
  echo Initializing application...
  "$GRADLEW_CMD" -p "$PRG_DIR" -s -q -u installDist
  if [ $? != 0 ]; then
    echo Failed to initialize application
    exit 1
  fi
  echo Application initialized!
fi

SOURCE_ROOTNAME="${SOURCE_FILE%.*}"
OUT_FILE="$SOURCE_ROOTNAME.$FORMAT"

DOCBOOK_DIR="$FOPUB_DIR/docbook"

if [ ! -z "$DOCBOOK_XSL_DIR" ]; then
  DOCBOOK_XSL_ABS_DIR=`readlink -f "$DOCBOOK_XSL_DIR" 2>/dev/null`
  if [ $? -ne 0 ]; then
    DOCBOOK_XSL_ABS_DIR=`greadlink -f "$DOCBOOK_XSL_DIR" 2>/dev/null`
    if [ $? -ne 0 ]; then
      DOCBOOK_XSL_ABS_DIR="$DOCBOOK_XSL_DIR"
    fi
  fi
else
  DOCBOOK_XSL_DIR="$FOPUB_DIR/docbook-xsl"
  DOCBOOK_XSL_ABS_DIR="$FOPUB_ABS_DIR/docbook-xsl"
fi

XSLTHL_CONFIG_URI="file://$DOCBOOK_XSL_ABS_DIR/xslthl-config.xml"

CONVERT_ARGS="$CONVERT_ARGS -$SOURCE_EXTENSION \"$SOURCE_FILE\""

if [ "$SOURCE_EXTENSION" == "xml" ]; then
  CONVERT_ARGS="$CONVERT_ARGS -xsl \"$DOCBOOK_XSL_DIR/fo-pdf.xsl\""
  if [ `grep -c '^<!DOCTYPE \(book\|article\)' "$SOURCE_FILE"` == 0 ]; then
    # QUESTION should we work on a copy?
    sedi "s:<\(book\|article\):<!DOCTYPE \1 [<!ENTITY % db5ent PUBLIC \"-//FOPUB//ENTITIES Entities for DocBook 5\" \"db5.ent\"> %db5ent;]>\n<\1:" "$SOURCE_FILE"
  fi
fi

case $FORMAT in
  pdf|ps)
    CONVERT_ARGS="$CONVERT_ARGS -$FORMAT \"$OUT_FILE\""
  ;;
  fo)
    CONVERT_ARGS="$CONVERT_ARGS -foout \"$OUT_FILE\""
  ;;
  xhtml)
    CONVERT_ARGS="${CONVERT_ARGS/fo-pdf/xhtml} -foout \"$OUT_FILE\""
  ;;
  *)
    echo Unexpected output format: "$FORMAT"
    echo Valid options: pdf, ps, fo
    usage
    exit 1
  ;;
esac

eval \"$FOPUB_CMD\" -q -catalog \
  -c \"$DOCBOOK_XSL_DIR/fop-config.xml\" \
  $CONVERT_ARGS \
  -param highlight.xslthl.config \"$XSLTHL_CONFIG_URI\" \
  -param admon.graphics.path \"$DOCBOOK_DIR/images/\" \
  -param callout.graphics.path \"$DOCBOOK_DIR/images/callouts/\" "$@"

# NOTE use ignore.image.scaling to disable the image scaling logic in fo-pdf.xsl
#  -param ignore.image.scaling \"1\" \

exit 0