#!/usr/bin/env bash

#

# makebundle -- re-package with add-on components

## diagnostics

PRG=$(basename "$0")

function usage()

{

  echo

  echo "Usage: $PRG ARCHIVE PLATFORM"

  echo

  echo "  Re-package Isabelle source distribution with add-on components"

  echo "  and heap images"

  echo

  exit 1

}

function fail()

{

  echo "$1" >&2

  exit 2

}

## implicit and explicit arguments

TMP="/var/tmp/isabelle-makebundle$$"

mkdir "$TMP" || fail "Cannot create directory $TMP"

[ "$#" -ne 2 ] && usage

ARCHIVE="$1"; shift

PLATFORM="$1"; shift

[ -f "$ARCHIVE" ] || fail "Bad source archive: $ARCHIVE"

## main

ARCHIVE_DIR="$(cd $(dirname "$ARCHIVE"); echo "$PWD")"

ISABELLE_NAME="$(basename "$ARCHIVE" .tar.gz)"

ISABELLE_HOME="$TMP/$ISABELLE_NAME"

tar -C "$TMP" -x -z -f "$ARCHIVE"

echo "#bundled components" >> "$ISABELLE_HOME/etc/components"

for CONTRIB in "$ARCHIVE_DIR"/contrib/*.tar.gz

do

  tar -C "$ISABELLE_HOME/contrib" -x -z -f "$CONTRIB"

  NAME="$(basename "$CONTRIB" .tar.gz)"

  [ -d "$ISABELLE_HOME/contrib/$NAME" ] || fail "Bad archive content $CONTRIB"

  if [ -e "$ISABELLE_HOME/contrib/$NAME/etc/settings" ]; then

    echo "component $NAME"

    echo "contrib/$NAME" >> "$ISABELLE_HOME/etc/components"

  else

    echo "package $NAME"

  fi

done

HEAPS_ARCHIVE="$ARCHIVE_DIR/${ISABELLE_NAME}_heaps_${PLATFORM}.tar.gz"

[ -f "$HEAPS_ARCHIVE" ] || fail "Bad heaps archive: $HEAPS_ARCHIVE"

echo "heaps"

tar -C "$TMP" -x -z -f "$HEAPS_ARCHIVE"

BUNDLE_ARCHIVE="${ARCHIVE_DIR}/${ISABELLE_NAME}_bundle_${PLATFORM}.tar.gz"

echo "$(basename "$BUNDLE_ARCHIVE")"

tar -C "$TMP" -c -z -f "$BUNDLE_ARCHIVE" Isabelle "$ISABELLE_NAME"

# clean up

cd /tmp

rm -rf "$TMP"