#! /bin/bash

# Reads a LAST_RELEASE file and outputs
# a xml log of changes since that release

. tools/include/config || {
  echo "must be run from mod-xslt source top level directory" 1>&2 
  exit 1
}

test -n "$library_ymd" || test -n "$library_mmp" || {
  echo "missing both library_ymd and library_mmp"
  exit 1
}

  # Work either on the last snapshot or
  # on the last release file
if test -z "$library_mmp"; then
  tla_last="$tla_last_snapshot_file"
else
  tla_last="$tla_last_release_file"
fi

archive=`$tla_brench_release | sed -e s@/.*@@`
version=`$tla_brench_release | sed -e s@.*/@@`

  # Ok, for which revisions do we need to generate a tla changelog
$cmd_tla revisions 2>/dev/null| sed -ne /`cat "$tla_last"| sed -e 's/.*--//'`/,\$p |tail -n+2 |\
	sed -e "s/^/${version}--/" |tac|xargs -i sh -c "$cmd_tla cat-log \"${archive}/{}\"|./tools/changelog-xml"

  # If this is a snapshot, we also need to update the Changes file
if test -z "$library_mmp"; then
  test -f "$file_changes" || touch "$file_changes"
  mv "$file_changes" "$file_changes".old
  echo "  =========== SNAPSHOT $library_ymd ===========" > "$file_changes"
  $cmd_tla revisions 2>/dev/null| sed -ne /`cat "$tla_last"| sed -e 's/.*--//'`/,\$p |tail -n+2 |\
	sed -e "s/^/${version}--/" |tac|xargs -i sh -c "$cmd_tla cat-log \"${archive}/{}\"|./tools/changelog-txt" \
	>>"$file_changes"
  cat "$file_changes".old >> "$file_changes"
  rm -f "$file_changes".old
fi

  # Update LAST file
test -n "$PRESERVE_FILES" || {
  mv "$tla_last" "$tla_last.old"
  echo "${tla_brench_current}--`$cmd_tla revisions |tail -n1`" >"$tla_last"
}