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Revision 1.1 Revision 1.42
1# Copyright 1999-2002 Gentoo Technologies, Inc. 1# Copyright 1999-2012 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License, v2 or later 2# Distributed under the terms of the GNU General Public License v2
3# Author: Martin Schlemmer <azarah@gentoo.org>
4# $Header: /var/cvsroot/gentoo-x86/eclass/virtualx.eclass,v 1.1 2002/04/09 06:17:29 azarah Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/virtualx.eclass,v 1.42 2012/10/02 08:14:36 kensington Exp $
5# This eclass can be used for packages that needs a working X environment to build
6ECLASS=virtualx
7newdepend virtual/x11
8 4
9DESCRIPTION="Based on the $ECLASS eclass" 5# @ECLASS: virtualx.eclass
6# @MAINTAINER:
7# x11@gentoo.org
8# @AUTHOR:
9# Original author: Martin Schlemmer <azarah@gentoo.org>
10# @BLURB: This eclass can be used for packages that needs a working X environment to build.
10 11
12# @ECLASS-VARIABLE: VIRTUALX_REQUIRED
13# @DESCRIPTION:
14# Variable specifying the dependency on xorg-server and xhost.
15# Possible special values are "always" and "manual", which specify
16# the dependency to be set unconditionaly or not at all.
17# Any other value is taken as useflag desired to be in control of
18# the dependency (eg. VIRTUALX_REQUIRED="kde" will add the dependency
19# into "kde? ( )" and add kde into IUSE.
20: ${VIRTUALX_REQUIRED:=test}
21
22# @ECLASS-VARIABLE: VIRTUALX_DEPEND
23# @DESCRIPTION:
24# Dep string available for use outside of eclass, in case a more
25# complicated dep is needed.
26# You can specify the variable BEFORE inherit to add more dependencies.
27VIRTUALX_DEPEND="${VIRTUALX_DEPEND}
28 !prefix? ( x11-base/xorg-server[xvfb] )
29 x11-apps/xhost
30"
31
32# @ECLASS-VARIABLE: VIRTUALX_COMMAND
33# @DESCRIPTION:
34# Command (or eclass function call) to be run in the X11 environment
35# (within virtualmake function).
36: ${VIRTUALX_COMMAND:="emake"}
37
38has "${EAPI:-0}" 0 1 && die "virtualx eclass require EAPI=2 or newer."
39
40case ${VIRTUALX_REQUIRED} in
41 manual)
42 ;;
43 always)
44 DEPEND="${VIRTUALX_DEPEND}"
45 RDEPEND=""
46 ;;
47 optional|tests)
48 # deprecated section YAY.
49 ewarn "QA: VIRTUALX_REQUIRED=optional and VIRTUALX_REQUIRED=tests are deprecated."
50 ewarn "QA: You can drop the variable definition completely from ebuild,"
51 ewarn "QA: because it is default behaviour."
52
53 if [[ -n ${VIRTUALX_USE} ]]; then
54 # so they like to specify the useflag
55 ewarn "QA: VIRTUALX_USE variable is deprecated."
56 ewarn "QA: Please read eclass manpage to find out how to use VIRTUALX_REQUIRED"
57 ewarn "QA: to achieve the same behaviour."
58 fi
59
60 [[ -z ${VIRTUALX_USE} ]] && VIRTUALX_USE="test"
61 DEPEND="${VIRTUALX_USE}? ( ${VIRTUALX_DEPEND} )"
62 RDEPEND=""
63 IUSE="${VIRTUALX_USE}"
64 ;;
65 *)
66 DEPEND="${VIRTUALX_REQUIRED}? ( ${VIRTUALX_DEPEND} )"
67 RDEPEND=""
68 IUSE="${VIRTUALX_REQUIRED}"
69 ;;
70esac
71
72# @FUNCTION: virtualmake
73# @DESCRIPTION:
74# Function which attach to running X session or start new Xvfb session
75# where the VIRTUALX_COMMAND variable content gets executed.
11virtualmake() { 76virtualmake() {
77 debug-print-function ${FUNCNAME} "$@"
78
79 local i=0
12 local retval=0 80 local retval=0
13 local Xconnect="/usr/X11R6/bin/xhost" 81 local OLD_SANDBOX_ON="${SANDBOX_ON}"
82 local XVFB=$(type -p Xvfb)
83 local XHOST=$(type -p xhost)
84 local xvfbargs="-screen 0 1280x1024x24"
14 85
86 # backcompat for maketype
87 if [[ -n ${maketype} ]]; then
88 ewarn "QA: ebuild is exporting \$maketype=${maketype}"
89 ewarn "QA: Ebuild should be migrated to use VIRTUALX_COMMAND=${maketype} instead."
90 ewarn "QA: Setting VIRTUALX_COMMAND to \$maketype conveniently for now."
91 VIRTUALX_COMMAND=${maketype}
92 fi
93
15 #If $DISPLAY is not set, or xhost cannot connect to an X 94 # If $DISPLAY is not set, or xhost cannot connect to an X
16 #display, then do the Xvfb hack. 95 # display, then do the Xvfb hack.
17 if [ -z "$DISPLAY" ] || ! /usr/X11R6/bin/xhost 96 if [[ -n ${XVFB} && -n ${XHOST} ]] && \
18 then 97 ( [[ -z ${DISPLAY} ]] || ! (${XHOST} &>/dev/null) ) ; then
19 # Mandrake's hack to allow compiling without the X display 98 debug-print "${FUNCNAME}: running Xvfb hack"
20 local i=0 99 export XAUTHORITY=
100 # The following is derived from Mandrake's hack to allow
101 # compiling without the X display
102
103 einfo "Scanning for an open DISPLAY to start Xvfb ..."
104 # If we are in a chrooted environment, and there is already a
105 # X server started outside of the chroot, Xvfb will fail to start
106 # on the same display (most cases this is :0 ), so make sure
107 # Xvfb is started, else bump the display number
108 #
109 # Azarah - 5 May 2002
21 XDISPLAY=$(i=0; while [ -f /tmp/.X${i}-lock ] ; do i=$((${i}+1));done; echo ${i}) 110 XDISPLAY=$(i=0; while [[ -f /tmp/.X${i}-lock ]] ; do ((i++));done; echo ${i})
22 /usr/X11R6/bin/Xvfb :${XDISPLAY} -screen 0 800x600x32 &>/dev/null & 111 debug-print "${FUNCNAME}: XDISPLAY=${XDISPLAY}"
23 112
113 # We really do not want SANDBOX enabled here
114 export SANDBOX_ON="0"
115
116 debug-print "${FUNCNAME}: ${XVFB} :${XDISPLAY} ${xvfbargs}"
117 ${XVFB} :${XDISPLAY} ${xvfbargs} &>/dev/null &
118 sleep 2
119
120 local start=${XDISPLAY}
121 while [[ ! -f /tmp/.X${XDISPLAY}-lock ]]; do
122 # Stop trying after 15 tries
123 if ((XDISPLAY - start > 15)) ; then
124 eerror "'${XVFB} :${XDISPLAY} ${xvfbargs}' returns:"
125 echo
126 ${XVFB} :${XDISPLAY} ${xvfbargs}
127 echo
128 eerror "If possible, correct the above error and try your emerge again."
129 die "Unable to start Xvfb"
130 fi
131
132 ((XDISPLAY++))
133 debug-print "${FUNCNAME}: ${XVFB} :${XDISPLAY} ${xvfbargs}"
134 ${XVFB} :${XDISPLAY} ${xvfbargs} &>/dev/null &
135 sleep 2
136 done
137
138 # Now enable SANDBOX again if needed.
139 export SANDBOX_ON="${OLD_SANDBOX_ON}"
140
141 einfo "Starting Xvfb on \$DISPLAY=${XDISPLAY} ..."
142
24 export DISPLAY=:${XDISPLAY} 143 export DISPLAY=:${XDISPLAY}
25 #Do not break on error, but setup $retval, as we need 144 # Do not break on error, but setup $retval, as we need
26 #to kill Xvfb 145 # to kill Xvfb
27 ${maketype} $* 146 debug-print "${FUNCNAME}: ${VIRTUALX_COMMAND} \"$@\""
147 nonfatal ${VIRTUALX_COMMAND} "$@"
28 retval=$? 148 retval=$?
29 149
30 #Now kill Xvfb 150 # Now kill Xvfb
31 kill $(cat /tmp/.X${XDISPLAY}-lock) 151 kill $(cat /tmp/.X${XDISPLAY}-lock)
32 else 152 else
153 debug-print "${FUNCNAME}: attaching to running X display"
33 #Normal make if we can connect to an X display 154 # Normal make if we can connect to an X display
34 ${maketype} $* 155 debug-print "${FUNCNAME}: ${VIRTUALX_COMMAND} \"$@\""
156 ${VIRTUALX_COMMAND} "$@"
35 retval=$? 157 retval=$?
36 fi 158 fi
37 return $retval 159
160 # die if our command failed
161 [[ ${retval} -ne 0 ]] && die "${FUNCNAME}: the ${VIRTUALX_COMMAND} failed."
162
163 return 0 # always return 0, it can be altered by failed kill for Xvfb
38} 164}
39 165
166# @FUNCTION: Xmake
167# @DESCRIPTION:
40#Same as "make", but setup the Xvfb hack if needed 168# Same as "make", but set up the Xvfb hack if needed.
169# Deprecated call.
41xmake() { 170Xmake() {
42 export maketype="make" 171 debug-print-function ${FUNCNAME} "$@"
43 virtualmake "$*" 172
173 ewarn "QA: you should not execute make directly"
174 ewarn "QA: rather execute Xemake -j1 if you have issues with parallel make"
175 VIRTUALX_COMMAND="emake -j1" virtualmake "$@"
44} 176}
45 177
178# @FUNCTION: Xemake
179# @DESCRIPTION:
46#Same as "emake", but setup the Xvfb hack if needed 180# Same as "emake", but set up the Xvfb hack if needed.
47xemake() { 181Xemake() {
48 export maketype="emake" 182 debug-print-function ${FUNCNAME} "$@"
49 virtualmake "$*" 183
184 VIRTUALX_COMMAND="emake" virtualmake "$@"
50} 185}
51 186
187# @FUNCTION: Xeconf
188# @DESCRIPTION:
189# Same as "econf", but set up the Xvfb hack if needed.
190Xeconf() {
191 debug-print-function ${FUNCNAME} "$@"
192
193 VIRTUALX_COMMAND="econf" virtualmake "$@"
194}

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