# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/subversion.eclass,v 1.33 2006/07/22 13:52:38 hattya Exp $

## --------------------------------------------------------------------------- #
# Author: Mark Stier
#
# SVN caching and release tag handling.
#
# Usage (inside src_unpack): svncache_fetch https://...@reltag target_dir
#
# Derived from the subversion.eclass file.
#
## --------------------------------------------------------------------------- #

inherit eutils

ESVN="svncache.eclass"

EXPORT_FUNCTIONS src_unpack

HOMEPAGE=""
DESCRIPTION=""

DEPEND="dev-util/subversion
	net-misc/rsync"


## -- ESVN_STORE_DIR:  subversion sources store directory
#
ESVN_STORE_DIR="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/svn-cache"


## -- ESVN_FETCH_CMD:  subversion fetch command
#
ESVN_FETCH_CMD="svn checkout"

## -- ESVN_UPDATE_CMD:  subversion update command
#
ESVN_UPDATE_CMD="svn update"


## -- ESVN_OPTIONS:
#
# the options passed to checkout or update.
#
: ESVN_OPTIONS=${ESVN_OPTIONS:=}


## -- ESVN_REPO_URI:  repository uri
#
# e.g. http://foo/trunk, svn://bar/trunk
#
# supported protocols:
#   http://
#   https://
#   svn://
#   svn+ssh://
#
: ESVN_REPO_URI=${ESVN_REPO_URI:=}


## -- ESVN_PROJECT:  project name of your ebuild (= name space)
#
# subversion eclass will check out the subversion repository like:
#
#   ${ESVN_STORE_DIR}/${ESVN_PROJECT}/${ESVN_REPO_URI##*/}
#
# so if you define ESVN_REPO_URI as http://svn.collab.net/repo/svn/trunk or
# http://svn.collab.net/repo/svn/trunk/. and PN is subversion-svn.
# it will check out like:
#
#   ${ESVN_STORE_DIR}/subversion/trunk
#
# this is not used in order to declare the name of the upstream project.
# so that you can declare this like:
#
#   # jakarta commons-loggin
#   ESVN_PROJECT=commons/logging
#
# default: ${PN/-svn}.
#
: ESVN_PROJECT=${ESVN_PROJECT:=${PN/-svn}}


## -- ESVN_BOOTSTRAP:
#
# bootstrap script or command like autogen.sh or etc..
#
: ESVN_BOOTSTRAP=${ESVN_BOOTSTRAP:=}


## -- ESVN_PATCHES:
#
# subversion eclass can apply pathces in subversion_bootstrap().
# you can use regexp in this valiable like *.diff or *.patch or etc.
# NOTE: this patches will apply before eval ESVN_BOOTSTRAP.
#
# the process of applying the patch is:
#   1. just epatch it, if the patch exists in the path.
#   2. scan it under FILESDIR and epatch it, if the patch exists in FILESDIR.
#   3. die.
#
: ESVN_PATCHES=${ESVN_PATCHES:=}


## -- ESVN_RESTRICT:
#
# this should be a space delimited list of subversion eclass features to restrict.
#   export)
#     don't export the working copy to S.
#
: ESVN_RESTRICT=${ESVN_RESTRICT:=}


function svncache_fetch() {
	local mypwd=$(pwd)

	local repo_uri=${1:-${ESVN_REPO_URI}}

	if [[ -z "${repo_uri}" ]]; then
		die "${ESVN}: ESVN_REPO_URI is empty."
	fi

	# delete trailing slash
	if [[ -z "${repo_uri##*/}" ]]; then
		repo_uri=${repo_uri%/}
	fi

	if [[ ! -d "${ESVN_STORE_DIR}" ]]; then
		debug-print "${FUNCNAME}: initial checkout. creating subversion directory"

		addwrite /
		mkdir -p "${ESVN_STORE_DIR}" || die "${ESVN}: can't mkdir ${ESVN_STORE_DIR}."
		export SANDBOX_WRITE=${SANDBOX_WRITE%%:/}
	fi

	cd "${ESVN_STORE_DIR}" || die "${ESVN}: can't chdir to ${ESVN_STORE_DIR}"

	# every time
	addwrite "/etc/subversion"
	addwrite "${ESVN_STORE_DIR}"

	if ! has userpriv ${FEATURES}; then
		# -userpriv
		addwrite "/root/.subversion"

	else
		# +userpriv
		ESVN_OPTIONS="${ESVN_OPTIONS} --config-dir ${ESVN_STORE_DIR}/.subversion"

	fi

	local wc_path="${1%%://*}/${1#*://}"

	# fix path (remove svn release tag)
	wc_path=${wc_path%@*}
	
	# strip last slash
	wc_path=${wc_path%/*}
	
	# determine release tag
	local rel=${1##*@}
	if [ "$rel" == "$1" ]; then
		rel="current"
	fi
	
	# append release tag to path
	wc_path="$wc_path""@""$rel"

	debug-print "${FUNCNAME}: ESVN_OPTIONS = \"${ESVN_OPTIONS}\""

	if [[ ! -f "${wc_path}.done" ]]; then
		# checkout
		einfo "subversion check out start -->"
		einfo "     repository: ${repo_uri}"
		rm -rf "${ESVN_STORE_DIR}/$wc_path" || die
		mkdir -p "${ESVN_STORE_DIR}"      || die "${ESVN_STORE_DIR}: can't mkdir ${ESVN_STORE_DIR}."
		cd "${ESVN_STORE_DIR}"
		${ESVN_FETCH_CMD} ${ESVN_OPTIONS} "${1}" "$wc_path" || die "${ESVN}: can't fetch from ${repo_uri}."
		touch "${wc_path}.done"
	elif [ "$rel" == "current" ]; then
		# update working copy
		einfo "subversion update start -->"
		einfo "     repository: ${repo_uri}"
		cd "${ESVN_STORE_DIR}/${wc_path}"
		${ESVN_UPDATE_CMD} ${ESVN_OPTIONS} || die "${ESVN}: can't update from ${repo_uri}."
	else
		einfo "subversion check out not needed, release tag \"$rel\" already fetched -->"
		einfo "     repository: ${repo_uri}"
	fi

	einfo "   working copy: ${ESVN_STORE_DIR}/${wc_path}"

	cd "${ESVN_STORE_DIR}/${wc_path}"

	# export to the ${WORKDIR}
	#*  "svn export" has a bug.  see http://bugs.gentoo.org/119236
	#* svn export . "${S}" || die "${ESVN}: can't export to ${S}."
	einfo "Copying code from subversion cache..."
	[ -d "${mypwd}/$2" ] || mkdir -p "${mypwd}/$2"
	[ -d "${mypwd}/$2" ] || die "failed to create dir \"${mypwd}/$2\""
	rsync -rlpgo . "${mypwd}/$2/." || die "${ESVN}: can't export to ${mypwd}/$2."

	echo
	cd "$mypwd" || die
}