git.eclass

git.eclass (text/plain), 4.90 KB, created by Avuton Olrich on 2006-05-05 14:08:10 UTC

# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
# Nonofficial eclass by Ycarus. For new version look here : http://gentoo.zugaina.org/
# This is a modified version of the subversion eclass

## --------------------------------------------------------------------------- #
# Author: Ycarus <[e-mail]>
# 
# The git eclass is written to fetch the software sources from
# git repositories like the cvs eclass.
#
#
# Description:
#   If you use this eclass, the ${S} is ${WORKDIR}/${P}.
#   It is necessary to define the EGIT_REPO_URI variables at least.
#
## --------------------------------------------------------------------------- #

inherit eutils

ECLASS="git"
INHERITED="${INHERITED} ${ECLASS}"
EGIT="git.eclass"

EXPORT_FUNCTIONS src_unpack

HOMEPAGE="http://kernel.org/pub/software/scm/git/"
DESCRIPTION="GIT eclass"


## -- add cogito in DEPEND
#
DEPEND="dev-util/cogito"


## -- EGIT_STORE_DIR:  subversion sources store directory
EGIT_STORE_DIR="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/git-src"

## -- EGIT_REV:  something other than the head is being requested
[ -z "${EGIT_REV}" ] && EGIT_REV="HEAD"


## -- EGIT_REV:  something other than the head is being requested
[ -z "${EGIT_REV}" ] && EGIT_REV="HEAD"


## -- EGIT_EXPORT_CMD:  cogito export command
[ -z "${EGIT_EXPORT_CMD}" ] && EGIT_EXPORT_CMD="cg-export"


## -- EGIT_FETCH_CMD:  cogito fetch command
#
# default: git checkout
#
[ -z "${EGIT_FETCH_CMD}" ]  && EGIT_FETCH_CMD="cg-clone"


## -- EGIT_UPDATE_CMD:  cogito update command
[ -z "${EGIT_UPDATE_CMD}" ]  && EGIT_UPDATE_CMD="cg-update"


## -- EGIT_REPO_URI:  repository uri
[ -z "${EGIT_REPO_URI}" ]  && EGIT_REPO_URI=""


## -- EGIT_PROJECT:  project name of your ebuild
#
# git eclass will check out the subversion repository like:
#
#   ${EGIT_STORE_DIR}/${EGIT_PROJECT}/${EGIT_REPO_URI##*/}
#
#
# default: ${PN/-git}.
#
[ -z "${EGIT_PROJECT}" ] && EGIT_PROJECT="${PN/-git}"


## -- EGIT_BOOSTRAP:  bootstrap script like autogen.sh or etc...
[ -z "${EGIT_BOOTSTRAP}" ] && EGIT_BOOTSTRAP=""

## -- git_bootstrap() --------------------------------------------- #

function git_bootstrap() {
	cd "${S}"

	if [ "${EGIT_BOOTSTRAP}" ]; then
		einfo "begin bootstrap -->"

		if [ -f "$EGIT_BOOTSTRAP" -a -x "${EGIT_BOOTSTRAP}" ]; then
			einfo "   bootstrap with a file: ${EGIT_BOOTSTRAP}"
			eval "./${EGIT_BOOTSTRAP}" || die "${EGIT}: can't execute EGIT_BOOTSTRAP"
		else
			einfo "   bootstrap with commands: ${EGIT_BOOTSTRAP}"
			eval "${EGIT_BOOTSTRAP}" || die "${EGIT}: can't eval EGIT_BOOTSTRAP"
		fi
	fi 
}


## -- git_fetch() ------------------------------------------------- #

function git_fetch() {
	# EGIT_REPO_URI is empty.
	[ -z "${EGIT_REPO_URI}" ] && die "${EGIT}: EGIT_REPO_URI is empty."
	EGIT_REPO_URI="${EGIT_REPO_URI} ${EGIT_PROJECT}"
	# check for the protocol.
	case ${EGIT_REPO_URI%%:*} in
		rsync)	;;
		ssh)	;;
		http)	
			einfo "Fetching will fail if dev-util/git is compiled without the curl USE flag"
			;;
		*)
			die "${EGITN}: fetch from "${EGIT_REPO_URI%:*}" is not yet implemented."
			;;
	esac

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

		addwrite /
		mkdir -p "${EGIT_STORE_DIR}"      || die "${EGIT}: can't mkdir ${EGIT_STORE_DIR}."
		chmod -f o+rw "${EGIT_STORE_DIR}" || die "${EGIT}: can't chmod ${EGIT_STORE_DIR}."
		export SANDBOX_WRITE="${SANDBOX_WRITE%%:/}"
	fi

	cd -P "${EGIT_STORE_DIR}" || die "${EGIT}: can't chdir to ${EGIT_STORE_DIR}"
	EGIT_STORE_DIR=${PWD}

	# every time
	addwrite "${EGIT_STORE_DIR}"

	[ -z "${EGIT_REPO_URI##*/}" ] && EGIT_REPO_URI="${EGIT_REPO_URI%/}"
	EGIT_CO_DIR="${EGIT_PROJECT}/${EGIT_PROJECT}"
	if [ ! -d "${EGIT_CO_DIR}/.git" ]; then
		# first check out
		einfo "git check out start -->"
		einfo "   checkout from: ${EGIT_REPO_URI}"

		mkdir -p "${EGIT_PROJECT}"      || die "${EGIT}: can't mkdir ${EGIT_PROJECT}."
		chmod -f o+rw "${EGIT_PROJECT}" || die "${EGIT}: can't chmod ${EGIT_PROJECT}."
		cd "${EGIT_PROJECT}"
		${EGIT_FETCH_CMD} ${EGIT_REPO_URI} || die "${EGIT}: can't fetch from ${EGIT_REPO_URI}."

		einfo "   checkouted in: ${EGIT_STORE_DIR}/${EGIT_CO_DIR}"

	else
		# update working copy
		einfo "git update start -->"
		einfo "   update from: ${EGIT_REPO_URI}"
		cd "${EGIT_CO_DIR}"
		${EGIT_UPDATE_CMD} || die "${EGIT}: can't update from ${EGIT_REPO_URI}."
		einfo "    updated in: ${EGIT_STORE_DIR}/${EGIT_CO_DIR}"

	fi

	# export to the ${WORKDIR}	
        cd "${EGIT_STORE_DIR}/${EGIT_CO_DIR}" || die "${EGIT}: couldn't cd to store directory."
        cg-export -r "${EGIT_REV}" "${S}" || die "${EGIT}: can't export copy to ${S}."

	einfo "     exported to: ${S}"

}

## -- git_src_unpack() ------------------------------------------------ #

function git_src_unpack() {

	if [ "${A}" != "" ]; then
		unpack ${A}
	fi
	git_fetch || die "${EGIT}: unknown problem in git_fetch()."
	git_bootstrap || die "${EGIT}: unknown problem in git_bootstrap()."
}