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# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/virtualx.eclass,v 1.32 2009/10/21 23:59:51 abcd Exp $
#
# Author: Martin Schlemmer <azarah@gentoo.org>
#
# This eclass can be used for packages that needs a working X environment to build
# Is a dependency on xorg-server and xhost needed?
# Valid values are "always", "optional", and "manual"
# "tests" is treated as a synonym for "optional"
: ${VIRTUALX_REQUIRED:=optional}
# If VIRTUALX_REQUIRED=optional, what use flag should control
# the dependency? Default is "test"
: ${VIRTUALX_USE:=test}
# Dep string available for use outside of eclass, in case a more
# complicated dep is needed
VIRTUALX_DEPEND="x11-base/xorg-server
x11-apps/xhost"
case ${VIRTUALX_REQUIRED} in
always)
DEPEND="${VIRTUALX_DEPEND}"
RDEPEND=""
;;
optional|tests)
DEPEND="${VIRTUALX_USE}? ( ${VIRTUALX_DEPEND} )"
RDEPEND=""
IUSE="${VIRTUALX_USE}"
;;
manual)
;;
*)
eerror "Invalid value (${VIRTUALX_REQUIRED}) for VIRTUALX_REQUIRED"
eerror "Valid values are:"
eerror " always"
eerror " optional (default if unset)"
eerror " manual"
die "Invalid value (${VIRTUALX_REQUIRED}) for VIRTUALX_REQUIRED"
;;
esac
DESCRIPTION="Based on the $ECLASS eclass"
#
# Brian Harring <ferringb@gentoo.org> 11/04/2004
# do not disable the sandbox during the depend phase.
# ebuilds shouldn't touch the fs during depend phase, nor screw with the sandbox.
#
if [[ ${EBUILD_PHASE/depend} == "${EBUILD_PHASE}" ]] ; then
[[ -z ${SANDBOX_DISABLED} ]] && export SANDBOX_DISABLED="0" || :
fi
virtualmake() {
local retval=0
local OLD_SANDBOX_DISABLED="${SANDBOX_DISABLED}"
local XVFB=$(type -p Xvfb)
local XHOST=$(type -p xhost)
# If $DISPLAY is not set, or xhost cannot connect to an X
# display, then do the Xvfb hack.
if [[ -n ${XVFB} && -n ${XHOST} ]] && \
( [[ -z ${DISPLAY} ]] || ! (${XHOST} &>/dev/null) ) ; then
export XAUTHORITY=
# The following is derived from Mandrake's hack to allow
# compiling without the X display
einfo "Scanning for an open DISPLAY to start Xvfb ..."
# We really do not want SANDBOX enabled here
export SANDBOX_DISABLED="1"
local i=0
XDISPLAY=$(i=0; while [[ -f /tmp/.X${i}-lock ]] ; do ((i++));done; echo ${i})
# If we are in a chrooted environment, and there is already a
# X server started outside of the chroot, Xvfb will fail to start
# on the same display (most cases this is :0 ), so make sure
# Xvfb is started, else bump the display number
#
# Azarah - 5 May 2002
#
# Changed the mode from 800x600x32 to 800x600x24 because the mfb
# support has been dropped in Xvfb in the xorg-x11 pre-releases.
# For now only depths up to 24-bit are supported.
#
# Sven Wegener <swegener@gentoo.org> - 22 Aug 2004
#
# Use "-fp built-ins" because it's only part of the default font path
# for Xorg but not the other DDXs (Xvfb, Kdrive, etc). Temporarily fixes
# bug 278487 until xorg-server is properly patched
#
# Rémi Cardona <remi@gentoo.org> (10 Aug 2009)
${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
sleep 2
local start=${XDISPLAY}
while [[ ! -f /tmp/.X${XDISPLAY}-lock ]] ; do
# Stop trying after 15 tries
if ((XDISPLAY - start > 15)) ; then
eerror ""
eerror "Unable to start Xvfb."
eerror ""
eerror "'${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24' returns:"
eerror ""
${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24
eerror ""
eerror "If possible, correct the above error and try your emerge again."
eerror ""
die
fi
((XDISPLAY++))
${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
sleep 2
done
# Now enable SANDBOX again if needed.
export SANDBOX_DISABLED="${OLD_SANDBOX_DISABLED}"
einfo "Starting Xvfb on \$DISPLAY=${XDISPLAY} ..."
export DISPLAY=:${XDISPLAY}
#Do not break on error, but setup $retval, as we need
#to kill Xvfb
${maketype} "$@"
retval=$?
#Now kill Xvfb
kill $(cat /tmp/.X${XDISPLAY}-lock)
else
#Normal make if we can connect to an X display
${maketype} "$@"
retval=$?
fi
return ${retval}
}
#Same as "make", but setup the Xvfb hack if needed
Xmake() {
export maketype="make"
virtualmake "$@"
}
#Same as "emake", but setup the Xvfb hack if needed
Xemake() {
export maketype="emake"
virtualmake "$@"
}
#Same as "econf", but setup the Xvfb hack if needed
Xeconf() {
export maketype="econf"
virtualmake "$@"
}
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