#!/bin/bash

# Generates the 'source tarball' for JDK projects.

#

# Example:

# When used from local repo set REPO_ROOT pointing to file:// with your repo

# if your local repo follows upstream forests conventions, you may be enough by setting OPENJDK_URL

# if you wont to use local copy of patch PR2126 set path to it to PR2126 variable

#

# In any case you have to set PROJECT_NAME REPO_NAME and VERSION. eg:

# PROJECT_NAME=jdk

# REPO_NAME=jdk

# VERSION=tip

# or to eg prepare systemtap:

# icedtea7's jstack and other tapsets

# VERSION=6327cf1cea9e

# REPO_NAME=icedtea7-2.6

# PROJECT_NAME=release

# OPENJDK_URL=http://icedtea.classpath.org/hg/

# TO_COMPRESS="*/tapset"

# 

# They are used to create correct name and are used in construction of sources url (unless REPO_ROOT is set)

# This script creates a single source tarball out of the repository

# based on the given tag and removes code not allowed in fedora/rhel. For

# consistency, the source tarball will always contain 'openjdk' as the top

# level folder, name is created, based on parameter

#

if [ ! "x$PR2126" = "x" ] ; then

  if [ ! -f "$PR2126" ] ; then

    echo "You have specified PR2126 as $PR2126 but it does not exists. exiting"

    exit 1

  fi

fi

set -e

OPENJDK_URL_DEFAULT=http://hg.openjdk.java.net

COMPRESSION_DEFAULT=xz

if [ "x$1" = "xhelp" ] ; then

    echo -e "Behaviour may be specified by setting the following variables:\n"

    echo "VERSION - the version of the specified OpenJDK project"

    echo "PROJECT_NAME -- the name of the OpenJDK project being archived (optional; only needed by defaults)"

    echo "REPO_NAME - the name of the OpenJDK repository (optional; only needed by defaults)"

    echo "OPENJDK_URL - the URL to retrieve code from (optional; defaults to ${OPENJDK_URL_DEFAULT})"

    echo "COMPRESSION - the compression type to use (optional; defaults to ${COMPRESSION_DEFAULT})"

    echo "FILE_NAME_ROOT - name of the archive, minus extensions (optional; defaults to PROJECT_NAME-REPO_NAME-VERSION)"

    echo "REPO_ROOT - the location of the Mercurial repository to archive (optional; defaults to OPENJDK_URL/PROJECT_NAME/REPO_NAME)"

    echo "TO_COMPRESS - what part of clone to pack (default is openjdk)"

    echo "PR2126 - the path to the PR2126 patch to apply (optional; downloaded if unavailable)"

    exit 1;

fi

if [ "x$VERSION" = "x" ] ; then

    echo "No VERSION specified"

    exit -2

fi

echo "Version: ${VERSION}"

# REPO_NAME is only needed when we default on REPO_ROOT and FILE_NAME_ROOT

if [ "x$FILE_NAME_ROOT" = "x" -o "x$REPO_ROOT" = "x" ] ; then

  if [ "x$PROJECT_NAME" = "x" ] ; then

    echo "No PROJECT_NAME specified"

    exit -1

  fi

  echo "Project name: ${PROJECT_NAME}"

  if [ "x$REPO_NAME" = "x" ] ; then

    echo "No REPO_NAME specified"

    exit -3

  fi

  echo "Repository name: ${REPO_NAME}"

fi

if [ "x$OPENJDK_URL" = "x" ] ; then

    OPENJDK_URL=${OPENJDK_URL_DEFAULT}

    echo "No OpenJDK URL specified; defaulting to ${OPENJDK_URL}"

else

    echo "OpenJDK URL: ${OPENJDK_URL}"

fi

if [ "x$COMPRESSION" = "x" ] ; then

    # rhel 5 needs tar.gz

    COMPRESSION=${COMPRESSION_DEFAULT}

fi

echo "Creating a tar.${COMPRESSION} archive"

if [ "x$FILE_NAME_ROOT" = "x" ] ; then

    FILE_NAME_ROOT=${PROJECT_NAME}-${REPO_NAME}-${VERSION}

    echo "No file name root specified; default to ${FILE_NAME_ROOT}"

fi

if [ "x$REPO_ROOT" = "x" ] ; then

    REPO_ROOT="${OPENJDK_URL}/${PROJECT_NAME}/${REPO_NAME}"

    echo "No repository root specified; default to ${REPO_ROOT}"

fi;

if [ "x$TO_COMPRESS" = "x" ] ; then

    TO_COMPRESS="openjdk"

    echo "No to be compressed targets specified, ; default to ${TO_COMPRESS}"

fi;

if [ -d ${FILE_NAME_ROOT} ] ; then

  echo "exists exists exists exists exists exists exists "

  echo "reusing reusing reusing reusing reusing reusing "

  echo ${FILE_NAME_ROOT}

else

  mkdir "${FILE_NAME_ROOT}"

  pushd "${FILE_NAME_ROOT}"

    echo "Cloning ${VERSION} root repository from ${REPO_ROOT}"

    hg clone ${REPO_ROOT} openjdk -r ${VERSION}

  popd

fi

pushd "${FILE_NAME_ROOT}"

    if [ -d openjdk/src ]; then 

        pushd openjdk

            echo "Removing EC source code we don't build"

            CRYPTO_PATH=src/jdk.crypto.ec/share/native/libsunec/impl

            rm -vrf $CRYPTO_PATH

            echo "Syncing EC list with NSS"

            if [ "x$PR2126" = "x" ] ; then

                # orriginally for 8:

                # get pr2126.patch (from http://icedtea.classpath.org/hg/icedtea?cmd=changeset;node=8d2c9a898f50) from most correct tag

                # Do not push it or publish it (see http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=2126)

                # there is currnetly no "upstram version of this patch, hardcoding custom version

                PR2126="../../pr2126-11.patch"

            fi;

            echo "Applying ${PR2126}"

            patch -Np1 < $PR2126

            find . -name '*.orig' -exec rm -vf '{}' ';'

        popd

    fi

    echo "Compressing remaining forest"

    if [ "X$COMPRESSION" = "Xxz" ] ; then

        SWITCH=cJf

    else

        SWITCH=czf

    fi

    tar --exclude-vcs -$SWITCH ${FILE_NAME_ROOT}.tar.${COMPRESSION} $TO_COMPRESS

    mv ${FILE_NAME_ROOT}.tar.${COMPRESSION}  ..

popd

echo "Done. You may want to remove the uncompressed version - $FILE_NAME_ROOT."