vd

#!/usr/bin/env bash

die() {
	echo $@
	exit 1
}

find_file() {
	DIR=$1
	WHAT=$2
	FILE=$(find ${DIR} -noleaf -xdev -name '*.java' \
		-o -name '*.proto' \
		-o -name '*.h' \
		-o -name '*.html' \
		-o -name '*.xml' \
		-o -name '*.c' \
		-o -name '*.cc' \
		-o -name '*.scala' \
		-o -name '*.go' \
		-o -name '*.py' \
		-o -name '*.gradle' \
		-o -name '*.json' \
		-o -name '*.sh' \
		| grep "${WHAT}" | sort -r | head -n 1)
	[[ -e "${FILE}" ]] || die "Nothing found in $VD_LEFT"
}

[[ $# == 1 ]] || die "You must pass exactly one argument: what to search for"
SEARCH_PATTERN="${1}"
#VD_LEFT="${VD_LEFT:-/home/cmccabe/src/kafka2}"
VD_LEFT="${VD_LEFT:-/home/cmccabe/src/ccs-kafka}"
VD_RIGHT="${VD_RIGHT:-/home/cmccabe/src/ce-kafka2}"
find_file "${VD_LEFT}" "${SEARCH_PATTERN}"
LEFT_FILE="${FILE}"
find_file "${VD_RIGHT}" "${SEARCH_PATTERN}"
RIGHT_FILE="${FILE}"
EXTRA_ARGS=""
if [[ "${VD_SPLIT}" == "stacked" ]]; then
    EXTRA_ARGS="$EXTRA_ARGS -o"
elif [[ "${VD_SPLIT}" == "side-by-side" ]]; then
    : # nothing to do
elif [[ "${VD_SPLIT}" == "" ]]; then
    : # nothing to do
else
    die "Unknown VD_SPLIT value of ${VD_SPLIT}"
fi

#
# You can use vimstart here to read file names from stdin. Like so:
#
# export VD_BIN=vimstart
# cat <my_file_name> | vd
#

VD_BIN="${VD_BIN:vimdiff}"
exec vimdiff ${EXTRA_ARGS} "${LEFT_FILE}" "${RIGHT_FILE}"