/[gentoo-x86]/eclass/virtualx.eclass
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Revision 1.34 - (show annotations) (download)
Thu Mar 4 21:18:27 2010 UTC (4 years, 7 months ago) by abcd
Branch: MAIN
Changes since 1.33: +3 -3 lines
Make xorg-server optional on prefix (assume its available on the host, as it is not available in the prefix)

1 # Copyright 1999-2010 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/virtualx.eclass,v 1.33 2009/12/21 17:27:28 abcd Exp $
4 #
5 # Author: Martin Schlemmer <azarah@gentoo.org>
6 #
7 # This eclass can be used for packages that needs a working X environment to build
8
9 # Is a dependency on xorg-server and xhost needed?
10 # Valid values are "always", "optional", and "manual"
11 # "tests" is treated as a synonym for "optional"
12 : ${VIRTUALX_REQUIRED:=optional}
13
14 # If VIRTUALX_REQUIRED=optional, what use flag should control
15 # the dependency? Default is "test"
16 : ${VIRTUALX_USE:=test}
17
18 # Dep string available for use outside of eclass, in case a more
19 # complicated dep is needed
20 VIRTUALX_DEPEND="!prefix? ( x11-base/xorg-server )
21 x11-apps/xhost"
22
23 case ${VIRTUALX_REQUIRED} in
24 always)
25 DEPEND="${VIRTUALX_DEPEND}"
26 RDEPEND=""
27 ;;
28 optional|tests)
29 DEPEND="${VIRTUALX_USE}? ( ${VIRTUALX_DEPEND} )"
30 RDEPEND=""
31 IUSE="${VIRTUALX_USE}"
32 ;;
33 manual)
34 ;;
35 *)
36 eerror "Invalid value (${VIRTUALX_REQUIRED}) for VIRTUALX_REQUIRED"
37 eerror "Valid values are:"
38 eerror " always"
39 eerror " optional (default if unset)"
40 eerror " manual"
41 die "Invalid value (${VIRTUALX_REQUIRED}) for VIRTUALX_REQUIRED"
42 ;;
43 esac
44
45 DESCRIPTION="Based on the $ECLASS eclass"
46
47 virtualmake() {
48 local retval=0
49 local OLD_SANDBOX_ON="${SANDBOX_ON}"
50 local XVFB=$(type -p Xvfb)
51 local XHOST=$(type -p xhost)
52
53 # If $DISPLAY is not set, or xhost cannot connect to an X
54 # display, then do the Xvfb hack.
55 if [[ -n ${XVFB} && -n ${XHOST} ]] && \
56 ( [[ -z ${DISPLAY} ]] || ! (${XHOST} &>/dev/null) ) ; then
57 export XAUTHORITY=
58 # The following is derived from Mandrake's hack to allow
59 # compiling without the X display
60
61 einfo "Scanning for an open DISPLAY to start Xvfb ..."
62
63 # We really do not want SANDBOX enabled here
64 export SANDBOX_ON="0"
65
66 local i=0
67 XDISPLAY=$(i=0; while [[ -f /tmp/.X${i}-lock ]] ; do ((i++));done; echo ${i})
68
69 # If we are in a chrooted environment, and there is already a
70 # X server started outside of the chroot, Xvfb will fail to start
71 # on the same display (most cases this is :0 ), so make sure
72 # Xvfb is started, else bump the display number
73 #
74 # Azarah - 5 May 2002
75 #
76 # Changed the mode from 800x600x32 to 800x600x24 because the mfb
77 # support has been dropped in Xvfb in the xorg-x11 pre-releases.
78 # For now only depths up to 24-bit are supported.
79 #
80 # Sven Wegener <swegener@gentoo.org> - 22 Aug 2004
81 #
82 # Use "-fp built-ins" because it's only part of the default font path
83 # for Xorg but not the other DDXs (Xvfb, Kdrive, etc). Temporarily fixes
84 # bug 278487 until xorg-server is properly patched
85 #
86 # RĂ©mi Cardona <remi@gentoo.org> (10 Aug 2009)
87 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
88 sleep 2
89
90 local start=${XDISPLAY}
91 while [[ ! -f /tmp/.X${XDISPLAY}-lock ]] ; do
92 # Stop trying after 15 tries
93 if ((XDISPLAY - start > 15)) ; then
94
95 eerror ""
96 eerror "Unable to start Xvfb."
97 eerror ""
98 eerror "'${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24' returns:"
99 eerror ""
100 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24
101 eerror ""
102 eerror "If possible, correct the above error and try your emerge again."
103 eerror ""
104 die
105 fi
106
107 ((XDISPLAY++))
108 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
109 sleep 2
110 done
111
112 # Now enable SANDBOX again if needed.
113 export SANDBOX_ON="${OLD_SANDBOX_ON}"
114
115 einfo "Starting Xvfb on \$DISPLAY=${XDISPLAY} ..."
116
117 export DISPLAY=:${XDISPLAY}
118 #Do not break on error, but setup $retval, as we need
119 #to kill Xvfb
120 ${maketype} "$@"
121 retval=$?
122
123 #Now kill Xvfb
124 kill $(cat /tmp/.X${XDISPLAY}-lock)
125 else
126 #Normal make if we can connect to an X display
127 ${maketype} "$@"
128 retval=$?
129 fi
130
131 return ${retval}
132 }
133
134 #Same as "make", but setup the Xvfb hack if needed
135 Xmake() {
136 export maketype="make"
137 virtualmake "$@"
138 }
139
140 #Same as "emake", but setup the Xvfb hack if needed
141 Xemake() {
142 export maketype="emake"
143 virtualmake "$@"
144 }
145
146 #Same as "econf", but setup the Xvfb hack if needed
147 Xeconf() {
148 export maketype="econf"
149 virtualmake "$@"
150 }

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