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gentoo-overlay/eclass/depend.apache.eclass

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# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: depend.apache.eclass
# @MAINTAINER:
# apache-devs@gentoo.org
# @SUPPORTED_EAPIS: 0 2 3 4 5 6
# @BLURB: Functions to allow ebuilds to depend on apache
# @DESCRIPTION:
# This eclass handles depending on apache in a sane way and provides information
# about where certain binaries and configuration files are located.
#
# To make use of this eclass simply call one of the need/want_apache functions
# described below. Make sure you use the need/want_apache call after you have
# defined DEPEND and RDEPEND. Also note that you can not rely on the automatic
# RDEPEND=DEPEND that portage does if you use this eclass.
#
# See Bug 107127 for more information.
#
# @EXAMPLE:
#
# Here is an example of an ebuild depending on apache:
#
# @CODE
# DEPEND="virtual/Perl-CGI"
# RDEPEND="${DEPEND}"
# need_apache2
# @CODE
#
# Another example which demonstrates non-standard IUSE options for optional
# apache support:
#
# @CODE
# DEPEND="server? ( virtual/Perl-CGI )"
# RDEPEND="${DEPEND}"
# want_apache2 server
#
# pkg_setup() {
# depend.apache_pkg_setup server
# }
# @CODE
case ${EAPI:-0} in
0|2|3|4|5)
inherit multilib
;;
6)
;;
*)
die "EAPI=${EAPI} is not supported by depend.apache.eclass"
;;
esac
# ==============================================================================
# INTERNAL VARIABLES
# ==============================================================================
# @ECLASS-VARIABLE: APACHE_VERSION
# @DESCRIPTION:
# Stores the version of apache we are going to be ebuilding.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APXS
# @DESCRIPTION:
# Path to the apxs tool.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APACHE_BIN
# @DESCRIPTION:
# Path to the apache binary.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APACHE_CTL
# @DESCRIPTION:
# Path to the apachectl tool.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APACHE_BASEDIR
# @DESCRIPTION:
# Path to the server root directory.
# This variable is set by the want/need_apache functions (EAPI=0 through 5)
# or depend.apache_pkg_setup (EAPI=6 and later).
# @ECLASS-VARIABLE: APACHE_CONFDIR
# @DESCRIPTION:
# Path to the configuration file directory.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APACHE_MODULES_CONFDIR
# @DESCRIPTION:
# Path where module configuration files are kept.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APACHE_VHOSTS_CONFDIR
# @DESCRIPTION:
# Path where virtual host configuration files are kept.
# This variable is set by the want/need_apache functions.
# @ECLASS-VARIABLE: APACHE_MODULESDIR
# @DESCRIPTION:
# Path where we install modules.
# This variable is set by the want/need_apache functions (EAPI=0 through 5)
# or depend.apache_pkg_setup (EAPI=6 and later).
# @ECLASS-VARIABLE: APACHE_DEPEND
# @DESCRIPTION:
# Dependencies for Apache
APACHE_DEPEND="www-servers/apache"
# @ECLASS-VARIABLE: APACHE2_DEPEND
# @DESCRIPTION:
# Dependencies for Apache 2.x
APACHE2_DEPEND="=www-servers/apache-2*"
# @ECLASS-VARIABLE: APACHE2_2_DEPEND
# @DESCRIPTION:
# Dependencies for Apache 2.2.x
APACHE2_2_DEPEND="=www-servers/apache-2.2*"
# @ECLASS-VARIABLE: APACHE2_4_DEPEND
# @DESCRIPTION:
# Dependencies for Apache 2.4.x
APACHE2_4_DEPEND="=www-servers/apache-2.4*"
# ==============================================================================
# INTERNAL FUNCTIONS
# ==============================================================================
_init_apache2() {
debug-print-function $FUNCNAME $*
# WARNING: Do not use these variables with anything that is put
# into the dependency cache (DEPEND/RDEPEND/etc)
APACHE_VERSION="2"
APXS="/usr/bin/apxs"
APACHE_BIN="/usr/sbin/apache2"
APACHE_CTL="/usr/sbin/apache2ctl"
APACHE_INCLUDEDIR="/usr/include/apache2"
APACHE_CONFDIR="/etc/apache2"
APACHE_MODULES_CONFDIR="${APACHE_CONFDIR}/modules.d"
APACHE_VHOSTS_CONFDIR="${APACHE_CONFDIR}/vhosts.d"
case ${EAPI:-0} in
0|2|3|4|5)
_init_apache2_late
;;
esac
}
_init_apache2_late() {
APACHE_BASEDIR="/usr/$(get_libdir)/apache2"
APACHE_MODULESDIR="${APACHE_BASEDIR}/modules"
}
_init_no_apache() {
debug-print-function $FUNCNAME $*
APACHE_VERSION="0"
}
# ==============================================================================
# PUBLIC FUNCTIONS
# ==============================================================================
# @FUNCTION: depend.apache_pkg_setup
# @USAGE: [myiuse]
# @DESCRIPTION:
# An ebuild calls this in pkg_setup() to initialize variables for optional
# apache-2.x support. If the myiuse parameter is not given it defaults to
# apache2.
depend.apache_pkg_setup() {
debug-print-function $FUNCNAME $*
if [[ "${EBUILD_PHASE}" != "setup" ]]; then
die "$FUNCNAME() should be called in pkg_setup()"
fi
local myiuse=${1:-apache2}
case ${EAPI:-0} in
0|2|3|4|5)
if has ${myiuse} ${IUSE}; then
if use ${myiuse}; then
_init_apache2
else
_init_no_apache
fi
fi
;;
*)
if in_iuse ${myiuse}; then
if use ${myiuse}; then
_init_apache2
_init_apache2_late
else
_init_no_apache
fi
fi
;;
esac
}
# @FUNCTION: want_apache
# @USAGE: [myiuse]
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for optional apache
# support. If the myiuse parameter is not given it defaults to apache2.
# An ebuild should additionally call depend.apache_pkg_setup() in pkg_setup()
# with the same myiuse parameter.
want_apache() {
debug-print-function $FUNCNAME $*
want_apache2 "$@"
}
# @FUNCTION: want_apache2
# @USAGE: [myiuse]
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for optional apache-2.x
# support. If the myiuse parameter is not given it defaults to apache2.
# An ebuild should additionally call depend.apache_pkg_setup() in pkg_setup()
# with the same myiuse parameter.
want_apache2() {
debug-print-function $FUNCNAME $*
local myiuse=${1:-apache2}
IUSE="${IUSE} ${myiuse}"
DEPEND="${DEPEND} ${myiuse}? ( ${APACHE2_DEPEND} )"
RDEPEND="${RDEPEND} ${myiuse}? ( ${APACHE2_DEPEND} )"
}
# @FUNCTION: want_apache2_2
# @USAGE: [myiuse]
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for optional
# apache-2.2.x support. If the myiuse parameter is not given it defaults to
# apache2.
# An ebuild should additionally call depend.apache_pkg_setup() in pkg_setup()
# with the same myiuse parameter.
want_apache2_2() {
debug-print-function $FUNCNAME $*
local myiuse=${1:-apache2}
IUSE="${IUSE} ${myiuse}"
DEPEND="${DEPEND} ${myiuse}? ( ${APACHE2_2_DEPEND} )"
RDEPEND="${RDEPEND} ${myiuse}? ( ${APACHE2_2_DEPEND} )"
}
# @FUNCTION: want_apache2_4
# @USAGE: [myiuse]
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for optional
# apache-2.4.x support. If the myiuse parameter is not given it defaults to
# apache2.
# An ebuild should additionally call depend.apache_pkg_setup() in pkg_setup()
# with the same myiuse parameter.
want_apache2_4() {
debug-print-function $FUNCNAME $*
local myiuse=${1:-apache2}
IUSE="${IUSE} ${myiuse}"
DEPEND="${DEPEND} ${myiuse}? ( ${APACHE2_4_DEPEND} )"
RDEPEND="${RDEPEND} ${myiuse}? ( ${APACHE2_4_DEPEND} )"
}
# @FUNCTION: need_apache
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for apache.
need_apache() {
debug-print-function $FUNCNAME $*
need_apache2
}
# @FUNCTION: need_apache2
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for apache-2.x.
need_apache2() {
debug-print-function $FUNCNAME $*
DEPEND="${DEPEND} ${APACHE2_DEPEND}"
RDEPEND="${RDEPEND} ${APACHE2_DEPEND}"
_init_apache2
}
# @FUNCTION: need_apache2_2
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for apache-2.2.x.
need_apache2_2() {
debug-print-function $FUNCNAME $*
DEPEND="${DEPEND} ${APACHE2_2_DEPEND}"
RDEPEND="${RDEPEND} ${APACHE2_2_DEPEND}"
_init_apache2
}
# @FUNCTION: need_apache2_4
# @DESCRIPTION:
# An ebuild calls this to get the dependency information for apache-2.4.x.
need_apache2_4() {
debug-print-function $FUNCNAME $*
DEPEND="${DEPEND} ${APACHE2_4_DEPEND}"
RDEPEND="${RDEPEND} ${APACHE2_4_DEPEND}"
_init_apache2
}
# @FUNCTION: has_apache
# @DESCRIPTION:
# An ebuild calls this to get runtime variables for an indirect apache
# dependency without USE-flag, in which case want_apache does not work.
# DO NOT call this function in global scope.
has_apache() {
debug-print-function $FUNCNAME $*
if has_version '>=www-servers/apache-2'; then
_init_apache2
else
_init_no_apache
fi
}
# @FUNCTION: has_apache_threads
# @USAGE: [myflag]
# @DESCRIPTION:
# An ebuild calls this to make sure thread-safety is enabled if apache has been
# built with a threaded MPM. If the myflag parameter is not given it defaults to
# threads.
has_apache_threads() {
debug-print-function $FUNCNAME $*
case ${EAPI:-0} in
0|1)
die "depend.apache.eclass: has_apache_threads is not supported for EAPI=${EAPI:-0}"
;;
esac
if ! has_version 'www-servers/apache[threads]'; then
return
fi
local myflag="${1:-threads}"
if ! use ${myflag}; then
echo
eerror "You need to enable USE flag '${myflag}' to build a thread-safe version"
eerror "of ${CATEGORY}/${PN} for use with www-servers/apache"
die "Need missing USE flag '${myflag}'"
fi
}
# @FUNCTION: has_apache_threads_in
# @USAGE: <myforeign> [myflag]
# @DESCRIPTION:
# An ebuild calls this to make sure thread-safety is enabled in a foreign
# package if apache has been built with a threaded MPM. If the myflag parameter
# is not given it defaults to threads.
has_apache_threads_in() {
debug-print-function $FUNCNAME $*
case ${EAPI:-0} in
0|1)
die "depend.apache.eclass: has_apache_threads_in is not supported for EAPI=${EAPI:-0}"
;;
esac
if ! has_version 'www-servers/apache[threads]'; then
return
fi
local myforeign="$1"
local myflag="${2:-threads}"
if ! has_version "${myforeign}[${myflag}]"; then
echo
eerror "You need to enable USE flag '${myflag}' in ${myforeign} to"
eerror "build a thread-safe version of ${CATEGORY}/${PN} for use"
eerror "with www-servers/apache"
die "Need missing USE flag '${myflag}' in ${myforeign}"
fi
}
EXPORT_FUNCTIONS pkg_setup