# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

EAPI="1"

inherit bash-completion depend.apache elisp-common eutils flag-o-matic java-pkg-opt-2 libtool multilib perl-module python subversion

KEYWORDS="~alpha amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~sparc-fbsd x86 ~x86-fbsd"

DESCRIPTION="Advanced version control system"
HOMEPAGE="http://subversion.tigris.org/"
SRC_URI="http://subversion.tigris.org/downloads/${P/_/-}.tar.bz2"

LICENSE="Subversion"
SLOT="0"
IUSE="apache2 berkdb debug doc emacs extras java nls perl python ruby sasl vim-syntax +webdav-neon webdav-serf"
RESTRICT="test"

COMMONDEPEND=">=dev-libs/apr-1.2.8
			>=dev-libs/apr-util-1.2.8
			dev-libs/expat
			sys-libs/zlib
			berkdb? ( =sys-libs/db-4* )
			doc? ( app-doc/doxygen )
			emacs? ( virtual/emacs )
			ruby? ( >=dev-lang/ruby-1.8.2 )
			sasl? ( dev-libs/cyrus-sasl )
			webdav-neon? ( >=net-misc/neon-0.28 )
			webdav-serf? ( net-libs/serf )"

RDEPEND="${COMMONDEPEND}
		java? ( >=virtual/jre-1.4 )
		nls? ( virtual/libintl )
		perl? ( dev-perl/URI )"

DEPEND="${COMMONDEPEND}
		java? ( >=virtual/jdk-1.4 )
		nls? ( sys-devel/gettext )"

want_apache

S="${WORKDIR}/${P/_/-}"

# Allow for custom repository locations.
# This can't be in pkg_setup() because the variable needs to be available to pkg_config().
: ${SVN_REPOS_LOC:=/var/svn}

pkg_setup() {
	if use berkdb ; then
		if ! built_with_use dev-libs/apr-util berkdb ; then
			eerror "APR-Util is missing support for Berkeley DB."
			die "Reemerge dev-libs/apr-util with USE=\"berkdb\""
		fi

		if has_version '<dev-util/subversion-0.34.0' && [[ -z ${SVN_DUMPED} ]] ; then
			echo
			ewarn "Presently you have $(best_version dev-util/subversion) installed."
			ewarn "Subversion has changed the repository filesystem schema from 0.34.0."
			ewarn "So you MUST dump your repositories before upgrading."
			ewarn
			ewarn 'After doing so call emerge with SVN_DUMPED=1 emerge !*'
			ewarn
			ewarn "More details on dumping:"
			ewarn "http://svn.collab.net/repos/svn/trunk/notes/repos_upgrade_HOWTO"
			echo
			die "Ensure that you dump your repository first"
		fi
	fi

	java-pkg-opt-2_pkg_setup

	if ! use webdav-neon && ! use webdav-serf ; then
		eerror
		eerror "\e[5;31m************************************************************************\e[0m"
		eerror
		eerror "Support for WebDAV will be disabled."
		eerror "You won't be able to access repositories through HTTP protocol."
		eerror "This setup is UNSUPPORTED!"
		eerror
		eerror "Support for WebDAV can be provided by either Neon or Serf."
		eerror "If you need support for WebDAV, enable \"webdav-neon\" or \"webdav-serf\" USE flag."
		eerror
		eerror "\e[5;31m************************************************************************\e[0m"
		eerror
		ebeep 24
	fi
}

src_unpack() {
	unpack ${A}
	cd "${S}"

	epatch "${FILESDIR}/${PN}-1.5_pre29068-disable_linking_against_unneeded_libraries.patch"

	sed -i -e "s/NEON_ALLOWED_LIST=.*0.28.2/& 0.29.0-dev/" configure.ac || die "sed configure.ac failed"

	./autogen.sh || die "autogen.sh failed"

	elibtoolize
}

src_compile() {
	local myconf=""

	if use python || use perl || use ruby ; then
		myconf="${myconf} --with-swig"
	else
		myconf="${myconf} --without-swig"
	fi

	if use debug ; then
		append-cppflags -DSVN_DEBUG -DAP_DEBUG
	fi

	append-flags -fno-strict-aliasing

	econf ${myconf} \
		$(use_with apache2 apxs "${APXS}") \
		$(use_with berkdb berkeley-db) \
		$(use_enable java javahl) \
		$(use_with java jdk "${JAVA_HOME}") \
		$(use_enable nls) \
		$(use_with sasl) \
		$(use_with webdav-neon neon /usr) \
		$(use_with webdav-serf serf /usr) \
		--with-apr="/usr/bin/apr-1-config" \
		--with-apr-util="/usr/bin/apu-1-config" \
		--disable-experimental-libtool \
		--without-jikes \
		--without-junit \
		--disable-mod-activation \
		--enable-runtime-module-search

	# Respect the user LDFLAGS when building of Subversion SWIG bindings.
	export SWIG_LDFLAGS="${LDFLAGS}"

	# Build Subversion, but do it in a way that is safe for parallel builds.
	elog
	elog "Building of core of Subversion"
	elog
	emake local-all || die "Building of core of Subversion failed"

	if use python ; then
		elog
		elog "Building of Subversion Python bindings"
		elog
		emake swig-py || die "Building of Subversion Python bindings failed"
	fi

	if use perl ; then
		elog
		elog "Building of Subversion Perl bindings"
		elog
		emake -j1 swig-pl || die "Building of Subversion Perl bindings failed"
	fi

	if use ruby ; then
		elog
		elog "Building of Subversion Ruby bindings"
		elog
		emake swig-rb || die "Building of Subversion Ruby bindings failed"
	fi

	if use java ; then
		elog
		elog "Building of Subversion JavaHL library"
		elog
		make JAVAC_FLAGS="$(java-pkg_javac-args) -encoding iso8859-1" javahl \
			|| die "Building of Subversion JavaHL library failed"
	fi

	if use emacs ; then
		elog
		elog "Compilation of Emacs support"
		elog
		elisp-compile contrib/client-side/emacs/dsvn.el || die "Compilation of Emacs module failed"
		elisp-compile contrib/client-side/emacs/psvn.el || die "Compilation of Emacs module failed"
		elisp-compile doc/svn-doc.el || die "Compilation of Emacs module failed"
		elisp-compile doc/tools/svnbook.el || die "Compilation of Emacs module failed"
	fi

	if use extras ; then
		elog
		elog "Building of contrib and tools"
		elog
		emake contrib || die "Building of contrib failed"
		emake tools || die "Building of tools failed"
	fi

	if use doc ; then
		elog
		elog "Building of Subversion HTML documentation"
		elog
		doxygen doc/doxygen.conf || die "Building of Subversion HTML documentation failed"

		if use java ; then
			elog
			elog "Building of Subversion JavaHL library HTML documentation"
			elog
			emake doc-javahl || "Building of Subversion JavaHL library HTML documentation failed"
		fi
	fi
}

src_install() {
	python_version
	PYTHON_DIR=/usr/$(get_libdir)/python${PYVER}

	elog
	elog "Installation of core of Subversion"
	elog
	emake -j1 DESTDIR="${D}" local-install || die "Installation of core of Subversion failed"

	if use python ; then
		elog
		elog "Installation of Subversion Python bindings"
		elog
		emake -j1 DESTDIR="${D}" DISTUTIL_PARAM="--prefix=${D}" LD_LIBRARY_PATH="-L${D}/usr/$(get_libdir)" install-swig-py \
			|| die "Installation of Subversion Python bindings failed"

		# Move Python bindings.
		dodir "${PYTHON_DIR}/site-packages"
		mv "${D}"/usr/$(get_libdir)/svn-python/svn "${D}${PYTHON_DIR}/site-packages"
		mv "${D}"/usr/$(get_libdir)/svn-python/libsvn "${D}${PYTHON_DIR}/site-packages"
		rm -fr "${D}"/usr/$(get_libdir)/svn-python
	fi

	if use perl ; then
		elog
		elog "Installation of Subversion Perl bindings"
		elog
		emake -j1 DESTDIR="${D}" INSTALLDIRS="vendor" install-swig-pl || die "Installation of Subversion Perl bindings failed"
		fixlocalpod
	fi

	if use ruby ; then
		elog
		elog "Installation of Subversion Ruby bindings"
		elog
		emake -j1 DESTDIR="${D}" install-swig-rb || die "Installation of Subversion Ruby bindings failed"
	fi

	if use java ; then
		elog
		elog "Installation of Subversion JavaHL library"
		elog
		emake -j1 DESTDIR="${D}" install-javahl || die "Installation of Subversion JavaHL library failed"
		java-pkg_regso "${D}"usr/$(get_libdir)/libsvnjavahl*.so
		java-pkg_dojar "${D}"usr/$(get_libdir)/svn-javahl/svn-javahl.jar
		rm -fr "${D}"usr/$(get_libdir)/svn-javahl/*.jar
	fi

	# Install Apache module configuration.
	if use apache2 ; then
		MOD="${APACHE2_MODULESDIR/${APACHE2_BASEDIR}\//}"
		dodir "${APACHE2_MODULES_CONFDIR}"
		cat <<EOF >"${D}/${APACHE2_MODULES_CONFDIR}"/47_mod_dav_svn.conf
<IfDefine SVN>
	<IfModule !mod_dav_svn.c>
		LoadModule dav_svn_module	${MOD}/mod_dav_svn.so
	</IfModule>
	<IfDefine SVN_AUTHZ>
		<IfModule !mod_authz_svn.c>
			LoadModule authz_svn_module	${MOD}/mod_authz_svn.so
		</IfModule>
	</IfDefine>

	# Example configuration:
	#<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

	# Install Bash Completion, bug 43179.
	dobashcompletion tools/client-side/bash_completion subversion
	rm -f tools/client-side/bash_completion

	# Install hot backup script, bug 54304.
	newbin tools/backup/hot-backup.py svn-hot-backup
	rm -fr tools/backup

	# Install svn_load_dirs.pl.
	if use perl ; then
		dobin contrib/client-side/svn_load_dirs/svn_load_dirs.pl
	fi
	rm -f contrib/client-side/svn_load_dirs/svn_load_dirs.pl

	# Install svnserve init-script and xinet.d snippet, bug 43245.
	newinitd "${FILESDIR}"/svnserve.initd svnserve
	if use apache2 ; then
		newconfd "${FILESDIR}"/svnserve.confd svnserve
	else
		newconfd "${FILESDIR}"/svnserve.confd2 svnserve
	fi
	insinto /etc/xinetd.d
	newins "${FILESDIR}"/svnserve.xinetd svnserve

	# Install documentation.
	dodoc CHANGES README
	dodoc tools/xslt/svnindex.{css,xsl}
	rm -fr tools/xslt

	# Install Vim syntax files.
	if use vim-syntax ; then
		insinto /usr/share/vim/vimfiles/syntax
		doins contrib/client-side/vim/svn.vim
	fi
	rm -f contrib/client-side/vim/svn.vim

	# Install Emacs Lisps.
	if use emacs ; then
		elisp-install ${PN} contrib/client-side/emacs/dsvn.el*
		elisp-install ${PN} contrib/client-side/emacs/psvn.el*
		elisp-install ${PN} doc/svn-doc.el*
		elisp-install ${PN} doc/tools/svnbook.el*

		elisp-site-file-install "${FILESDIR}/70svn-gentoo.el"
	fi
	rm -fr contrib/client-side/emacs

	# Install extra files.
	if use extras ; then
		elog
		elog "Installation of contrib and tools"
		elog
		doenvd "${FILESDIR}/80subversion-extras"
		emake DESTDIR="${D}" install-contrib || die "Installation of contrib failed"
		emake DESTDIR="${D}" install-tools || die "Installation of tools failed"
		find contrib tools '(' -name "*.bat" -o -name "*.in" -o -name ".libs" ')' -print0 | xargs -0 rm -fr
		rm -fr contrib/client-side/{svn-push,svnmucc}
		rm -fr tools/server-side/{svn-populate-node-origins-index,svnauthz-validate}*
		rm -fr tools/{buildbot,dev,diff,po}
		dodir "/usr/share/${PN}"
		cp -R contrib tools "${D}usr/share/${PN}"
	fi

	if use doc ; then
		elog
		elog "Installation of Subversion HTML documentation"
		elog
		dohtml doc/doxygen/html/* || die "Installation of Subversion HTML documentation failed"
		cp -R notes "${D}usr/share/doc/${PF}"
		ecompressdir "/usr/share/doc/${PF}/notes"

#		if use ruby ; then
#			make DESTDIR="${D}" install-swig-rb-doc
#		fi

		if use java ; then
			cp -R doc/javadoc "${D}usr/share/doc/${PF}" || die "Installation of Subversion JavaHL library HTML documentation failed"
		fi
	fi
}

pkg_preinst() {
	# Compare versions of Berkeley DB, bug 122877.
	if use berkdb && [[ -f "${ROOT}usr/bin/svn" ]] ; then
		OLD_BDB_VERSION="$(scanelf -nq "${ROOT}usr/lib/libsvn_subr-1.so.0" | grep -Eo "libdb-[[:digit:]]+\.[[:digit:]]+" | sed -e "s/libdb-\(.*\)/\1/")"
		NEW_BDB_VERSION="$(scanelf -nq "${D}usr/lib/libsvn_subr-1.so.0" | grep -Eo "libdb-[[:digit:]]+\.[[:digit:]]+" | sed -e "s/libdb-\(.*\)/\1/")"
		if [[ "${OLD_BDB_VERSION}" != "${NEW_BDB_VERSION}" ]] ; then
			CHANGED_BDB_VERSION=1
		fi
	fi
}

pkg_postinst() {
	use emacs && elisp-site-regen
	use perl && perl-module_pkg_postinst

	elog "Subversion Server Notes"
	elog "-----------------------"
	elog
	elog "If you intend to run a server, a repository needs to be created using"
	elog "svnadmin (see man svnadmin) or the following command to create it in"
	elog "${SVN_REPOS_LOC}:"
	elog
	elog "    emerge --config =${CATEGORY}/${PF}"
	elog
	elog "Subversion has multiple server types, take your pick:"
	elog
	elog " - svnserve daemon: "
	elog "   1. Edit /etc/conf.d/svnserve"
	elog "   2. Start daemon: /etc/init.d/svnserve start"
	elog "   3. Make persistent: rc-update add svnserve default"
	elog
	elog " - svnserve via xinetd:"
	elog "   1. Edit /etc/xinetd.d/svnserve (remove disable line)"
	elog "   2. Restart xinetd.d: /etc/init.d/xinetd restart"
	elog
	elog " - svn over ssh:"
	elog "   1. Fix the repository permissions:"
	elog "        groupadd svnusers"
	elog "        chown -R root:svnusers ${SVN_REPOS_LOC}/repos/"
	elog "        chmod -R g-w ${SVN_REPOS_LOC}/repos"
	elog "        chmod -R g+rw ${SVN_REPOS_LOC}/repos/db"
	elog "        chmod -R g+rw ${SVN_REPOS_LOC}/repos/locks"
	elog "   2. Create an svnserve wrapper in /usr/local/bin to set the umask you"
	elog "      want, for example:"
	elog "         #!/bin/bash"
	elog "         . /etc/conf.d/svnserve"
	elog "         umask 002"
	elog "         exec /usr/bin/svnserve \${SVNSERVE_OPTS} \"\$@\""
	elog

	if use apache2 ; then
		elog " - http-based server:"
		elog "   1. Edit /etc/conf.d/apache2 to include both \"-D DAV\" and \"-D SVN\""
		elog "   2. Create an htpasswd file:"
		elog "      htpasswd2 -m -c ${SVN_REPOS_LOC}/conf/svnusers USERNAME"
		elog
	fi

	elog "If you intend to use svn-hot-backup, you can specify the number of"
	elog "backups to keep per repository by specifying an environment variable."
	elog "If you want to keep e.g. 2 backups, do the following:"
	elog "echo '# hot-backup: Keep that many repository backups around' > /etc/env.d/80subversion"
	elog "echo 'SVN_HOTBACKUP_BACKUPS_NUMBER=2' >> /etc/env.d/80subversion"
	elog

	if [[ -n "${CHANGED_BDB_VERSION}" ]] ; then
		ewarn "You upgraded from an older version of Berkeley DB and may experience"
		ewarn "problems with your repository. Run the following commands as root to fix it:"
		ewarn "    db4_recover -h ${SVN_REPOS_LOC}/repos"
		ewarn "    chown -Rf apache:apache ${SVN_REPOS_LOC}/repos"
	fi
}

pkg_postrm() {
	use emacs && elisp-site-regen
	use perl && perl-module_pkg_postrm
}

pkg_config() {
	if [[ ! -x "${ROOT}usr/bin/svnadmin" ]] ; then
		die "You seem to only have built the Subversion client"
	fi

	einfo ">>> Initializing the database in ${ROOT}${SVN_REPOS_LOC} ..."
	if [[ -e "${ROOT}${SVN_REPOS_LOC}/repos" ]] ; then
		echo "A Subversion repository already exists and I will not overwrite it."
		echo "Delete ${ROOT}${SVN_REPOS_LOC}/repos first if you're sure you want to have a clean version."
	else
		mkdir -p "${ROOT}${SVN_REPOS_LOC}/conf"

		einfo ">>> Populating repository directory ..."
		# Create initial repository.
		"${ROOT}usr/bin/svnadmin" create "${ROOT}${SVN_REPOS_LOC}/repos"

		einfo ">>> Setting repository permissions ..."
		SVNSERVE_USER="$(. "${ROOT}etc/conf.d/svnserve" ; echo "${SVNSERVE_USER}")"
		SVNSERVE_GROUP="$(. "${ROOT}etc/conf.d/svnserve" ; echo "${SVNSERVE_GROUP}")"
		if use apache2 ; then
			[[ -z "${SVNSERVE_USER}" ]] && SVNSERVE_USER="apache"
			[[ -z "${SVNSERVE_GROUP}" ]] && SVNSERVE_GROUP="apache"
		else
			[[ -z "${SVNSERVE_USER}" ]] && SVNSERVE_USER="svn"
			[[ -z "${SVNSERVE_GROUP}" ]] && SVNSERVE_GROUP="svnusers"
			enewgroup "${SVNSERVE_GROUP}"
			enewuser "${SVNSERVE_USER}" -1 -1 ${SVN_REPOS_LOC} "${SVNSERVE_GROUP}"
		fi
		chown -Rf "${SVNSERVE_USER}:${SVNSERVE_GROUP}" "${ROOT}${SVN_REPOS_LOC}/repos"
		chmod -Rf 755 "${ROOT}${SVN_REPOS_LOC}/repos"
	fi
}