#!/usr/bin/env bash

## diagnostics

function fail()

{

  echo "$1" >&2

  exit 2

}

## parameters

ARCHIVE_LINUX32="jdk-7u9-linux-i586.tar.gz"

ARCHIVE_LINUX64="jdk-7u9-linux-x64.tar.gz"

ARCHIVE_DARWIN="jdk1.7.0_09.jdk.tar.gz"

ARCHIVE_WINDOWS="jdk1.7.0_09.tar.gz"

VERSION="7u9"

## variations on version

case "$VERSION" in

  *u?)

    MAJOR="$(echo "$VERSION" | cut -du -f1)"

    MINOR="0$(echo "$VERSION" | cut -du -f2)"

    ;;

  *u??)

    MAJOR="$(echo "$VERSION" | cut -du -f1)"

    MINOR="$(echo "$VERSION" | cut -du -f2)"

    ;;

  *)

    fail "Bad version identifier: \"$VERSION\""

    ;;

esac

FULL_VERSION="1.${MAJOR}.0_${MINOR}"

## main

DIR="jdk-${VERSION}"

mkdir "$DIR" || fail "Cannot create fresh directory: \"$DIR\""

# README

cat >> "$DIR/README" << EOF

This is JDK $FULL_VERSION as required for Isabelle.

See http://www.oracle.com/technetwork/java/javase/downloads/index.html

for the original downloads, which are covered by the Oracle Binary

Code License Agreement for Java SE.

Linux, Mac OS X, Windows work uniformly, depending on certain

platform-specific subdirectories.

Note that Java 1.7 on Mac OS X requires 64bit hardware!

EOF

# settings

mkdir "$DIR/etc"

cat >> "$DIR/etc/settings" << EOF

# -*- shell-script -*- :mode=shellscript:

case "\${ISABELLE_PLATFORM64:-\$ISABELLE_PLATFORM32}" in

  x86-darwin)

    echo "### Java 1.7 unavailable on 32bit Macintosh!" >&2

    ;;

  x86_64-darwin)

    ISABELLE_JDK_HOME="\$COMPONENT/\$ISABELLE_PLATFORM64/jdk${FULL_VERSION}.jdk/Contents/Home"

    ;;

  *)

    ISABELLE_JDK_HOME="\$COMPONENT/\${ISABELLE_PLATFORM64:-\$ISABELLE_PLATFORM32}/jdk${FULL_VERSION}"

    ;;

esac

if [ -n "\$ISABELLE_JDK_HOME" ]; then

  if [ -d "\$ISABELLE_JDK_HOME" ]; then

    ISABELLE_JAVA_EXT="\${ISABELLE_JDK_HOME}/jre/lib/ext"

  else

    echo "### Missing Java 1.7 platform directory: \"\$ISABELLE_JDK_HOME\"" >&2

    unset ISABELLE_JDK_HOME

  fi

fi

EOF

# content

export COPYFILE_DISABLE=true

mkdir "$DIR/x86-linux" "$DIR/x86_64-linux" "$DIR/x86_64-darwin" "$DIR/x86-cygwin"

tar -C "$DIR/x86-linux" -xf "$ARCHIVE_LINUX32"

tar -C "$DIR/x86_64-linux" -xf "$ARCHIVE_LINUX64"

tar -C "$DIR/x86_64-darwin" -xf "$ARCHIVE_DARWIN"

tar -C "$DIR/x86-cygwin" -xf "$ARCHIVE_WINDOWS"

chgrp -R isabelle "$DIR"

chmod -R a+r "$DIR"

chmod -R a+X "$DIR"

find "$DIR/x86_64-darwin" -name "._*" -exec rm -f {} ";"

(

  cd "$DIR/x86-linux/jdk${FULL_VERSION}"

  for FILE in $(find . -type f)

  do

    for OTHER in \

      "../../x86_64-linux/jdk${FULL_VERSION}/$FILE" \

      "../../x86_64-darwin/jdk${FULL_VERSION}.jdk/Contents/Home/$FILE" \

      "../../x86-cygwin/jdk${FULL_VERSION}/$FILE"

    do

      if cmp -s "$FILE" "$OTHER"

      then

        ln -f "$FILE" "$OTHER"

      fi

    done

  done

)

# create archive

tar -cz -f "${DIR}.tar.gz" "$DIR"