version.sh

#!/bin/bash

# Create a detailed version string for the program.

export TZ=UTC
RAW_TIME=`git log --date=local --pretty=format:%cd --date=raw -1 HEAD | awk -F" " '{print $1}'`

case `uname -s` in
    Darwin)
	DATE=`date -r "${RAW_TIME}" '+%Y.%m.%d-%TUTC'`
	;;
    *)
	DATE=`date -u --date="@${RAW_TIME}" '+%Y.%m.%d-%TUTC'`
	;;
esac

TAG=`git describe --tags $(git rev-list --tags --max-count=1) 2>/dev/null`
if [[ "$?" == "128" ]] ; then
    TAG_DIFF="0000."
else
    TAG_DIFF=`git log ${TAG}..HEAD --oneline | wc -l`
    TAG_DIFF=`printf "%04d." ${TAG_DIFF}`
fi
GITVER=g`git log --pretty=format:%h -1 HEAD`


V=".${TAG_DIFF}${GITVER} ${DATE}"

t=$(dirname ${BASH_SOURCE[0]})
TAG=$(cat ${t}/fancydiff.cabal | grep ^version: | awk -F" " '{print $2}')

if [[ "$1" == "tag-with-simple" ]] ; then
    echo ${TAG}-${TAG_DIFF}${GITVER}
    exit
fi

if [[ "$1" == "tag" ]] ; then
    echo ${TAG}
    exit
fi

if [[ "$1" == "simple" ]] ; then
    echo ${TAG_DIFF}${GITVER}
    exit
fi

echo """
{-# LANGUAGE OverloadedStrings         #-}

module Internal.Version where
import Data.Text

version :: Text
version = \"${V}\"
"""