#!/bin/sh

# Shell script to extract the date given a release version and a .doap file

if test "x$1" = "x" -o "x$2" = "x" -o ! -s "$2"; then

  echo "Usage: $0 RELEASE-VERSION-NUMBER DOAP-FILE" >&2;

  exit 1

fi

if ! grep '<Project' "$2" >/dev/null ; then

  echo "$2 does not look lika a .doap file" >&2;

  exit 1

fi

if ! grep "$1" "$2" >/dev/null ; then

  echo "$2 contains no reference to a version $1" >&2;

  exit 1

fi

awk 'BEGIN {x=0}

{

if ( $0 ~ /<release>/ ) {x=1; chunk=""}

if (x==1) {

  if ($0 ~ /<revision>/) { chunk = chunk $0 }

  if ($0 ~ /<created>/) { chunk = chunk $0 }

}

if ($0 ~ /<\/release>/) {x=0; print chunk}

}' < "$2" | \

\

grep '<revision>'"$1"'</revision>' | \

\

sed -e 's/^.*<created>//' -e 's/<\/created>.*$//'