add a script to generate the source tarball post submodule

To simplify things, we generate the source tarball with
all the submodules included.
so building from source should now be:

wget the tarball and untar
cd into the resulting directory
./autogen.sh + make

Change-Id: Ie8e65a81309cf11728c5144c9001f7d96670f815

bin/lo-generate-source-tarball

+#!/bin/env bash
+
+if [ -n "$debug" ] ; then
+set -x
+fi
+
+BIN_DIR=$(dirname "$0")
+CORE_DIR=$(realpath "$BIN_DIR/..")
+GEN_BZ2=false
+GEN_MD5=false
+GEN_XZ=false
+OUT_DIR="${CORE_DIR?}"
+VERSION=
+
+usage()
+{
+cat <<EOF
+Usage: $0 [ --xz ] [ --bz2 ] [ --md5 ] [ --output-dir=<output location> ]
+          [ --core-dir=<core-repo-location ] [--version=<package_version] label
+
+    --xz         generate a package compressed with xz (default)
+    --bz2        generate a package compressed with bz2. Note if you specify
+                 both --cz and --bz2, both are created. if you specify neither
+                 --xz is impliied.
+    --md5        generate a md5 signature for the generated pacakge(s)
+    --output-dir where to put the generated packages
+    --core-dir   location of the core repo to extract sources from.
+                 by default this is one directory up from the position
+                 of this script.
+    --version    version string used to generate the name of the pacakge
+                 the source pacakge name is libreoffice-<version>.tar.[bz2|xz]
+
+EOF
+}
+while [ "${1}" != "" ]; do
+    parm=${1%%=*}
+    arg=${1#*=}
+    has_arg=
+    if [ "${1}" != "${parm?}" ] ; then
+	has_arg=1
+    else
+	arg=""
+    fi
+#    echo "parm=!${parm}!"
+#    echo "arg=!${arg}!"
+    case "${parm}" in
+        -2|--bz2)
+	    GEN_BZ2=true
+	    ;;
+	-x|--xz)
+	    GEN_XZ=true
+	    ;;
+	-5|--md5)
+	    GEN_MD5=true
+	    ;;
+	-o|--output-dir)
+	    if [ -z "${has_arg}" ] ; then
+		shift;
+		arg="$1"
+	    fi
+	    if [ -z "${arg}" ] ; then
+		echo "Missing argument for option $parm" 1>&2
+		exit -1
+	    else
+		OUT_DIR="$arg"
+	    fi
+	    ;;
+	-v|--version)
+	    if [ -z "${has_arg}" ] ; then
+		shift;
+		arg="$1"
+	    fi
+	    if [ -z "${arg}" ] ; then
+		echo "Missing argument for option $parm" 1>&2
+		exit -1
+	    else
+		VERSION="$arg"
+	    fi
+	    ;;
+	-h|--help)
+	    usage
+	    exit 0
+	    ;;
+        -*)
+	    echo "Invalid option $1" 1>&2
+	    exit -1
+	    ;;
+	*)
+	    if [ -z "${LABEL}" ] ; then
+		LABEL="$parm"
+	    else
+		echo "Too many arguments..  $@" 1>&2
+		exit -1
+	    fi
+	    ;;
+    esac
+    shift
+done
+
+# we need a label
+if [ -z "${LABEL}" ] ; then
+    echo "Missing argument. we need a git label as source" 1>&2
+    exit 1
+fi
+
+# default to xz compression
+if ! ${GEN_BZ2?} && ! ${GEN_XZ?} ; then
+    GEN_XZ=true
+fi
+
+# --version= is mandatory
+if [ -z "${VERSION}" ] ; then
+    VERSION="${LABEL?}"
+fi
+
+base_name="libreoffice-${VERSION}"
+
+# --output-dir default to core-dir
+if [ -z "${OUT_DIR}" ] ; then
+    OUT_DIR="$CORE_DIR?}"
+fi
+
+if [ ! -d "${CORE_DIR?}" ] ; then
+    echo "Core repo directory $CORE_DIR does not exist or is not a directory" 1>&2
+    exit 1
+fi
+
+if [ ! -d "${CORE_DIR?}/.git" ] ; then
+    echo "Core repo $CORE_DIR is not a git repo" 1>&2
+    exit 1
+fi
+
+if [ ! -d "${OUT_DIR?}" ] ; then
+    echo "Output directory $OUT_DIR does not exist or is not a directory" 1>&2
+    exit 1
+fi
+
+
+pushd "${CORE_DIR}" > /dev/null
+
+
+echo "archiving core..."
+git archive --format=tar --prefix="${base_name?}" -o "${OUT_DIR}/${base_name}.tar" ${LABEL?}
+
+
+concatenate_list=
+for module in dictionaries helcontent2 translations ; do
+    if [ ! -f ${module?}/.git ] ; then
+	echo "Warning: module $module is not present" 1>&2
+    else
+	echo "archiving ${module?}..."
+	git archive --format=tar --prefix="${base_name?}/${module?}" -o "${OUT_DIR}/${base_name}-${module?}.tar" ${LABEL?}
+	concatenate_list="${concatenate_list?} ${OUT_DIR}/${base_name}-${module?}.tar"
+    fi
+done
+
+if [ -n "${concatenate_list?}" ] ; then
+    tar --concatenate --file="${OUT_DIR}/${base_name}.tar" ${concatenate_list?}
+    rm ${concatenate_list?}
+fi
+
+if ${GEN_BZ2?} ; then
+    echo "bzip2 compression..."
+    bzip2 -fkz "${OUT_DIR}/${base_name}.tar"
+    if ${GEN_MD5?} ; then
+	echo "md5sum..."
+	md5sum "${OUT_DIR}/${base_name}.tar.bz2" > "${OUT_DIR}/${base_name}.tar.bz2.md5"
+    fi
+fi
+
+if ${GEN_XZ?} ; then
+    echo "xz compression..."
+    xz -fz "${OUT_DIR}/${base_name}.tar"
+    if ${GEN_MD5?} ; then
+	echo "md5sum..."
+	md5sum "${OUT_DIR}/${base_name}.tar.xz" > "${OUT_DIR}/${base_name}.tar.zx.md5"
+    fi
+else
+    rm "${OUT_DIR}/${base_name}.tar"
+fi
+
+echo "Done."