| # Copyright 1999-2012 Gentoo Foundation |
| # Distributed under the terms of the GNU General Public License v2 |
| # $Id$ |
| |
| # @ECLASS: virtualx.eclass |
| # @MAINTAINER: |
| # x11@gentoo.org |
| # @AUTHOR: |
| # Original author: Martin Schlemmer <azarah@gentoo.org> |
| # @BLURB: This eclass can be used for packages that needs a working X environment to build. |
| |
| # @ECLASS-VARIABLE: VIRTUALX_REQUIRED |
| # @DESCRIPTION: |
| # Variable specifying the dependency on xorg-server and xhost. |
| # Possible special values are "always" and "manual", which specify |
| # the dependency to be set unconditionaly or not at all. |
| # Any other value is taken as useflag desired to be in control of |
| # the dependency (eg. VIRTUALX_REQUIRED="kde" will add the dependency |
| # into "kde? ( )" and add kde into IUSE. |
| : ${VIRTUALX_REQUIRED:=test} |
| |
| # @ECLASS-VARIABLE: VIRTUALX_DEPEND |
| # @DESCRIPTION: |
| # Dep string available for use outside of eclass, in case a more |
| # complicated dep is needed. |
| # You can specify the variable BEFORE inherit to add more dependencies. |
| VIRTUALX_DEPEND="${VIRTUALX_DEPEND} |
| !prefix? ( x11-base/xorg-server[xvfb] ) |
| x11-apps/xhost |
| " |
| |
| # @ECLASS-VARIABLE: VIRTUALX_COMMAND |
| # @DESCRIPTION: |
| # Command (or eclass function call) to be run in the X11 environment |
| # (within virtualmake function). |
| : ${VIRTUALX_COMMAND:="emake"} |
| |
| has "${EAPI:-0}" 0 1 && die "virtualx eclass require EAPI=2 or newer." |
| |
| case ${VIRTUALX_REQUIRED} in |
| manual) |
| ;; |
| always) |
| DEPEND="${VIRTUALX_DEPEND}" |
| RDEPEND="" |
| ;; |
| optional|tests) |
| # deprecated section YAY. |
| ewarn "QA: VIRTUALX_REQUIRED=optional and VIRTUALX_REQUIRED=tests are deprecated." |
| ewarn "QA: You can drop the variable definition completely from ebuild," |
| ewarn "QA: because it is default behaviour." |
| |
| if [[ -n ${VIRTUALX_USE} ]]; then |
| # so they like to specify the useflag |
| ewarn "QA: VIRTUALX_USE variable is deprecated." |
| ewarn "QA: Please read eclass manpage to find out how to use VIRTUALX_REQUIRED" |
| ewarn "QA: to achieve the same behaviour." |
| fi |
| |
| [[ -z ${VIRTUALX_USE} ]] && VIRTUALX_USE="test" |
| DEPEND="${VIRTUALX_USE}? ( ${VIRTUALX_DEPEND} )" |
| RDEPEND="" |
| IUSE="${VIRTUALX_USE}" |
| ;; |
| *) |
| DEPEND="${VIRTUALX_REQUIRED}? ( ${VIRTUALX_DEPEND} )" |
| RDEPEND="" |
| IUSE="${VIRTUALX_REQUIRED}" |
| ;; |
| esac |
| |
| # @FUNCTION: virtualmake |
| # @DESCRIPTION: |
| # Function which attach to running X session or start new Xvfb session |
| # where the VIRTUALX_COMMAND variable content gets executed. |
| virtualmake() { |
| debug-print-function ${FUNCNAME} "$@" |
| |
| local i=0 |
| local retval=0 |
| local OLD_SANDBOX_ON="${SANDBOX_ON}" |
| local XVFB=$(type -p Xvfb) |
| local XHOST=$(type -p xhost) |
| local xvfbargs="-screen 0 1280x1024x24" |
| |
| # backcompat for maketype |
| if [[ -n ${maketype} ]]; then |
| ewarn "QA: ebuild is exporting \$maketype=${maketype}" |
| ewarn "QA: Ebuild should be migrated to use VIRTUALX_COMMAND=${maketype} instead." |
| ewarn "QA: Setting VIRTUALX_COMMAND to \$maketype conveniently for now." |
| VIRTUALX_COMMAND=${maketype} |
| fi |
| |
| # 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 |
| debug-print "${FUNCNAME}: running Xvfb hack" |
| export XAUTHORITY= |
| # The following is derived from Mandrake's hack to allow |
| # compiling without the X display |
| |
| einfo "Scanning for an open DISPLAY to start Xvfb ..." |
| # If we are in a chrooted environment, and there is already a |
| # X server started outside of the chroot, Xvfb will fail to start |
| # on the same display (most cases this is :0 ), so make sure |
| # Xvfb is started, else bump the display number |
| # |
| # Azarah - 5 May 2002 |
| XDISPLAY=$(i=0; while [[ -f /tmp/.X${i}-lock ]] ; do ((i++));done; echo ${i}) |
| debug-print "${FUNCNAME}: XDISPLAY=${XDISPLAY}" |
| |
| # We really do not want SANDBOX enabled here |
| export SANDBOX_ON="0" |
| |
| debug-print "${FUNCNAME}: ${XVFB} :${XDISPLAY} ${xvfbargs}" |
| ${XVFB} :${XDISPLAY} ${xvfbargs} &>/dev/null & |
| sleep 2 |
| |
| local start=${XDISPLAY} |
| while [[ ! -f /tmp/.X${XDISPLAY}-lock ]]; do |
| # Stop trying after 15 tries |
| if ((XDISPLAY - start > 15)) ; then |
| eerror "'${XVFB} :${XDISPLAY} ${xvfbargs}' returns:" |
| echo |
| ${XVFB} :${XDISPLAY} ${xvfbargs} |
| echo |
| eerror "If possible, correct the above error and try your emerge again." |
| die "Unable to start Xvfb" |
| fi |
| |
| ((XDISPLAY++)) |
| debug-print "${FUNCNAME}: ${XVFB} :${XDISPLAY} ${xvfbargs}" |
| ${XVFB} :${XDISPLAY} ${xvfbargs} &>/dev/null & |
| sleep 2 |
| done |
| |
| # Now enable SANDBOX again if needed. |
| export SANDBOX_ON="${OLD_SANDBOX_ON}" |
| |
| einfo "Starting Xvfb on \$DISPLAY=${XDISPLAY} ..." |
| |
| export DISPLAY=:${XDISPLAY} |
| # Do not break on error, but setup $retval, as we need |
| # to kill Xvfb |
| debug-print "${FUNCNAME}: ${VIRTUALX_COMMAND} \"$@\"" |
| if has "${EAPI}" 2 3; then |
| ${VIRTUALX_COMMAND} "$@" |
| retval=$? |
| else |
| nonfatal ${VIRTUALX_COMMAND} "$@" |
| retval=$? |
| fi |
| |
| # Now kill Xvfb |
| kill $(cat /tmp/.X${XDISPLAY}-lock) |
| else |
| debug-print "${FUNCNAME}: attaching to running X display" |
| # Normal make if we can connect to an X display |
| debug-print "${FUNCNAME}: ${VIRTUALX_COMMAND} \"$@\"" |
| ${VIRTUALX_COMMAND} "$@" |
| retval=$? |
| fi |
| |
| # die if our command failed |
| [[ ${retval} -ne 0 ]] && die "${FUNCNAME}: the ${VIRTUALX_COMMAND} failed." |
| |
| return 0 # always return 0, it can be altered by failed kill for Xvfb |
| } |
| |
| # @FUNCTION: Xmake |
| # @DESCRIPTION: |
| # Same as "make", but set up the Xvfb hack if needed. |
| # Deprecated call. |
| Xmake() { |
| debug-print-function ${FUNCNAME} "$@" |
| |
| ewarn "QA: you should not execute make directly" |
| ewarn "QA: rather execute Xemake -j1 if you have issues with parallel make" |
| VIRTUALX_COMMAND="emake -j1" virtualmake "$@" |
| } |
| |
| # @FUNCTION: Xemake |
| # @DESCRIPTION: |
| # Same as "emake", but set up the Xvfb hack if needed. |
| Xemake() { |
| debug-print-function ${FUNCNAME} "$@" |
| |
| VIRTUALX_COMMAND="emake" virtualmake "$@" |
| } |
| |
| # @FUNCTION: Xeconf |
| # @DESCRIPTION: |
| # Same as "econf", but set up the Xvfb hack if needed. |
| Xeconf() { |
| debug-print-function ${FUNCNAME} "$@" |
| |
| VIRTUALX_COMMAND="econf" virtualmake "$@" |
| } |