local_stylesheet.sh

#!/bin/bash

BASE_DIR=$(dirname $0)/..
DEP_DIR=$BASE_DIR/dependencies

#######################################
# variables
#######################################

INPUT_DIR_DEFAULT="$BASE_DIR/schema/odd"
INPUT_DIRS=()
OUTPUT_DIR_DEFAULT="$BASE_DIR/schema/generated"
STYLESHEET=
STYLESHEET_DIR="$BASE_DIR/stylesheets"
NAME_PATTERN='*'
SUFFIX='.xml'
CACHE=
SAXON_ARGS=()

OUTPUT_DIR=

#######################################
# functions
#######################################

function print_help {
	echo "for every file in INPUT_DIR:"
	echo "apply STYLESHEET,"
	echo "send output to OUTPUT_DIR"
	echo
	echo "usage: $0 [OPTIONS] STYLESHEET [NAME_PATTERN]"
	echo
	echo "OPTIONS:"
	echo "  -h | --help: print this help"
	echo "  -i|--input-dir INPUT_DIR (multiple options add multiple directories). default: '$INPUT_DIR_DEFAULT'"
	echo "  -o|--output-dir OUTPUT_DIR. default: '$OUTPUT_DIR_DEFAULT/\$STYLESHEET'"
	echo "  -s|--stylesheet-dir STYLESHEET_DIR. default: '$STYLESHEET_DIR'"
	echo "  -x | --suffix SUFFIX: output files suffix. default: '$SUFFIX'"
	echo "  -c | --cache: only write output if not yet existing"
	echo "  -o | --options OPTS append these options for saxon"
	echo
	echo "ARGUMENTS:"
	echo "  STYLESHEET: a stylesheet in \$STYLESHEET_DIR to apply"
	echo "  NAME_PATTERN: apply only on files which match this pattern. default: '$NAME_PATTERN'"
	echo
	echo "possible values for CMD:"
	for f in $(ls $STYLESHEET_DIR); do
		echo "  $f"
	done
}

#######################################
# parse command line arguments
#######################################

while [[ $# > 0 ]]; do
	key="$1"
	case $key in
		-h | --help)
			print_help
			exit 0
			;;
		-i|--input-dir)
			shift
			INPUT_DIRS+=( "$1" )
			shift
			;;
		-o|--output-dir)
			shift
			OUTPUT_DIR="$1"
			shift
			;;
		-s|--stylesheet-dir)
			shift
			STYLESHEET_DIR="$1"
			shift
			;;
		-x | --suffix)
			shift
			SUFFIX="$1"
			shift
			;;
		-o | --options)
			shift
			SAXON_ARGS+=( "$1" )
			shift
			;;
		-c | --cache)
			shift
			CACHE=1
			;;
		-* )
			echo "wrong syntax!"
			print_help
			exit 1
			;;
		*)
			break
			;;
	esac
done

if [[ $# = 0 ]]; then
	print_help
	exit 1
fi

if [[ "$1" != "" ]]; then
	STYLESHEET="$1"
	shift
fi

if [[ "$1" != "" ]]; then
	NAME_PATTERN="$1"
fi

if [[ "$OUTPUT_DIR" = "" ]]; then
	OUTPUT_DIR="$OUTPUT_DIR_DEFAULT/${STYLESHEET##*/}"
fi

if [[ ${#INPUT_DIRS[@]} = 0 ]]; then
	INPUT_DIRS=( "$INPUT_DIR_DEFAULT" )
fi

echo "creating '$OUTPUT_DIR'"
mkdir -p "$OUTPUT_DIR"


echo "pattern: '$NAME_PATTERN'"
while read file
do
	output=${file##*/}
	output=${output%.*}$SUFFIX
	# echo "output: $output"
	read -d '' cmd << EOF
java -jar "$DEP_DIR/Stylesheets/lib/saxon9he.jar"
	"$STYLESHEET_DIR/$STYLESHEET"
	-s:"$file"
	-o:"$OUTPUT_DIR/$output"
	${SAXON_ARGS[*]}
EOF
	if [[ $CACHE ]] && [[ -e $OUTPUT_DIR/$output ]]; then
		echo "'$OUTPUT_DIR/$output' already exists, skipping..."
	else
		echo "execute $cmd"
		eval $cmd
	fi
done < <(
	find "${INPUT_DIRS[@]}" \
		\( -type f -o -type l \) \
		-name "$NAME_PATTERN"
)