# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit libtool

DESCRIPTION="A compelling replacement for CVS"
SRC_URI=" http://subversion.tigris.org/files/documents/15/5977/${P}.tar.gz"
HOMEPAGE="http://subversion.tigris.org/"

SLOT="0"
LICENSE="Apache-1.1"
KEYWORDS="~x86"
IUSE="ssl apache2 berkdb python emacs"

S=${WORKDIR}/${P}

if [ "${SVN_REPOS_LOC}x" = "x" ]; then
	SVN_REPOS_LOC="/home/svn"
fi

#
#
# Note that to disable the server part of subversion you need to specify
# USE="-berkdb" emerge subversion.
#
#

DEPEND="python? ( >=dev-lang/python-2.0 )
	python? ( >=dev-lang/swig-1.3.16 )
	emacs? ( virtual/emacs  )
	apache2? ( >=net-www/apache-2.0.45 )
	berkdb? ( >=sys-libs/db-4.0.14 )
	!apache2? ( !>=apache-2* )
	!dev-libs/apr
	>=sys-apps/diffutils-2.7.7
	>=sys-devel/libtool-1.4.1-r1
	>=sys-devel/bison-1.28-r3
	>=net-misc/neon-0.23.8
	~sys-devel/m4-1.4"

RDEPEND="python? ( >=dev-lang/python-2.0 )
	emacs? ( virtual/emacs )
	>=sys-apps/diffutils-2.7.7
	~sys-devel/m4-1.4"

pkg_setup() {

	if has_version '<subversion-0.28.0'; then
		einfo "WARNING:  Now you have $(best_version subversion)"
		einfo "WARNING:  This release makes an incompatible change to the Subversion"
		einfo "WARNING:  repository filesystem schema.  Repositories created with"
		einfo "WARNING:  Subversion code prior to this release will unable to operate"
		einfo "WARNING:  with this new code.  To maintain the ability to use said"
		einfo "WARNING:  repositories, you must use a version 'svnadmin dump' prior to"
		einfo "WARNING:  this change to dump your repository to a dumpfile."
		einfo ""
		einfo "More details:" 
		einfo "    http://svn.collab.net/repos/svn/trunk/notes/repos_upgrade_HOWTO"
		sleep 5
	fi

	if use apache2; then
		einfo "The apache2 subversion module will be built, and libapr from the"
		einfo "apache package will be used instead of the included"
	else
		einfo "Please note that subversion and apache2 cannot be installed"
		einfo "simultaneously without specifying the apache2 use flag. This is"
		einfo "because subversion installs its own libapr and libapr-util in that"
		einfo "case."
	fi

}

src_unpack() {

	unpack ${P}.tar.gz
	cd ${S}
	elibtoolize ${S}
	patch -p1 <${FILESDIR}/subversion-db4.patch

}

src_compile() {

	local myconf

	cd ${S}
	use ssl && myconf="${myconf} --with-ssl"
	use ssl || myconf="${myconf} --without-ssl"

	use apache2 && myconf="${myconf} --with-apxs=/usr/sbin/apxs2 \
		--with-apr=/usr --with-apr-util=/usr"
	use apache2 || myconf="${myconf} --without-apxs"

	use berkdb && myconf="${myconf} --with-berkeley-db"
	use berkdb || myconf="${myconf} --without-berkeley-db"

	use python && myconf="${myconf} --with-python=/usr/bin/python --with-swig"
	use python || myconf="${myconf} --without-python --without-swig"

	echo "myconf=${myconf}"
	econf ${myconf} \
		--with-neon=/usr \
		--disable-experimental-libtool \
		--disable-mod-activation ||die "configuration failed"

	# build subversion, but do it in a way that is safe for paralel builds
	# Also apparently the included apr does have a libtool that doesn't like
	# -L flags. So not specifying it at all when not building apache modules
	# and only specify it for internal parts otherwise
	if use apache2; then
		( emake external-all && emake LT_LDFLAGS="-L${D}/usr/lib" local-all ) || die "make of subversion failed"
	else
		( emake external-all && emake local-all ) || die "make of subversion failed"
	fi

	#building fails without the apache apr-util as includes are wrong.
	#Also the python bindings do not work without db installed
	if use python; then
		if use berkdb; then
			if use apache2; then
				emake swig-py || die "subversion python bindings failed"
			else
				emake SVN_APR_INCLUDES="-I${S}/apr/include -I${S}/apr-util/include" swig-py || die "subversion python bindings failed"
			fi
		fi
	fi

	# Byte compile emacs lisps
	if use emacs; then
		emacs -batch -f batch-byte-compile contrib/client-side/vc-svn.el
		emacs -batch -f batch-byte-compile contrib/client-side/psvn/psvn.el
	fi

}

src_install () {

	make DESTDIR=${D} install || die "Installation of subversion failed"

	if use python; then
		if use berkdb; then
			make install-swig-py DESTDIR=${D} DISTUTIL_PARAM=--prefix=${D} || die "Installation of subversion python bindings failed"
			# move python bindings
			mkdir -p ${D}/usr/lib/python2.2/site-packages
			mv ${D}/usr/lib/svn-python/svn ${D}/usr/lib/python2.2/site-packages
			mv ${D}/usr/lib/svn-python/libsvn ${D}/usr/lib/python2.2/site-packages
			rmdir ${D}/usr/lib/svn-python
		fi
	fi

	# install documents
	dodoc [A-Z][A-Z]*

	docinto notes
	for f in notes/*
	do
		[ -f ${f} ] && dodoc ${f}
	done

	# refresh DOCTREE and install html documents
	docinto
	echo "installing html book"
	dohtml -r doc/book/book/book.html doc/book/book/styles.css doc/book/book/images

	# install cvs2svn
	newbin tools/cvs2svn/cvs2svn.py cvs2svn.py
	doman tools/cvs2svn/cvs2svn.1

	insinto /usr/lib/python2.2/site-packages/rcsparse
	for f in tools/cvs2svn/rcsparse/*
	do
		[ -f ${f} ] && doins ${f}
	done

	# install tools.
	dodir /usr/share/subversion/tools
	for dir in backup client-side hook-scripts examples xslt
	do
		cp -r tools/${dir} ${D}/usr/share/subversion/tools

		if [ ${dir} = "backup" ] || [ ${dir} = "hook-scripts" ]; then
			rm ${D}/usr/share/subversion/tools/${dir}/*.in
		fi
	done

	# install emacs lisps
	if use emacs; then
		insinto /usr/share/emacs/site-lisp/subversion
		doins contrib/client-side/psvn/psvn.el*
		doins  contrib/client-side/vc-svn.el*

		inherit elisp
		elisp-site-file-install ${FILESDIR}/70svn-gentoo.el
	fi

	if use apache2; then
		mv ${D}/usr/lib/apache2 ${D}/usr/lib/apache2-extramodules
		mkdir -p ${D}/etc/apache2/conf/modules.d
		cat <<EOF >${D}/etc/apache2/conf/modules.d/47_mod_dav_svn.conf
<IfDefine SVN>
  <IfModule !mod_dav_svn.c>
    LoadModule dav_svn_module	extramodules/mod_dav_svn.so
  </IfModule>
  <Location /svn/repos>
    DAV svn
    SVNPath ${SVN_REPOS_LOC}/repos
    AuthType Basic
    AuthName "Subversion repository"
    AuthUserFile ${SVN_REPOS_LOC}/conf/svnusers
    Require valid-user
  </Location>
</IfDefine>
EOF
	fi
}

pkg_postinst() {

	if use berkdb; then
		einfo "WARNING:  If you updated from subversion 0.27 or less."
		einfo "WARNING:  You must use this new Subversion code to create, and load"
		einfo "WARNING:  your dumpfile a new repository using 'svnadmin load'."
		einfo "WARNING:  And don't forget to copy over any custom configuration/hooks"
		einfo "WARNING:  from the old to the new repository."
		einfo ""
		einfo "More details:"
		einfo "    http://svn.collab.net/repos/svn/trunk/notes/repos_upgrade_HOWTO"

		if use apache2; then
			einfo "Subversion has multiple server types. To enable the http based version"
			einfo "you must edit /etc/conf.d/apache2 to include both \"-D DAV\" and \"-D SVN\""
			einfo ""
		fi

		einfo "A repository needs to be created using the ebuild ${PN} config command"

		if has_version =sys-libs/db-4*; then
			einfo "If you upgraded from an older version of berkely db and experience"
			einfo "problems with your repository then run the following command:"
			einfo "    su apache -c \"db4_recover -h /path/to/repos\""
		fi
		if use apache2; then
			einfo "To allow web access a htpasswd file needs to be created using the"
			einfo "following command:"
			einfo "   htpasswd2 -m -c ${SVN_REPOS_LOC}/conf/svnusers USERNAME"
		fi
	else
		einfo "Your subversion is client only as the server is only build when"
		einfo "the berkdb flag is set"
	fi

	if [ -n "`use emacs`" ]; then
		inherit elisp
		elisp-site-regen
	fi

}

pkkg_postrm() {

	if [ -n "`use emacs`" ]; then
		inherit elisp
		elisp-site-regen
	fi

}

pkg_config() {

	if [ ! -x /usr/bin/svnadmin ]; then
		die "You seem to only have build the subversion client"
	fi

	einfo ">>> Initializing the database in ${SVN_REPOS_LOC}..."
	if [ -f ${SVN_REPOS_LOC}/repos ] ; then
		echo "A subversion repository already exists and I will not overwrite it."
		echo "Delete ${SVN_REPOS_LOC}/repos first if you're sure you want to have a clean version."
	else
		mkdir -p ${SVN_REPOS_LOC}
		einfo ">>> Populating repository directory ..."
		# create initial repository
		/usr/bin/svnadmin create ${SVN_REPOS_LOC}/repos

		einfo ">>> Setting repository permissions ..."
		chown -Rf apache.apache ${SVN_REPOS_LOC}/repos
		chmod -Rf 755 ${SVN_REPOS_LOC}/repos
	fi

}