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Revision 1.32 - (show annotations) (download)
Wed Oct 21 23:59:51 2009 UTC (5 years, 2 months ago) by abcd
Branch: MAIN
Changes since 1.31: +12 -7 lines
Allow changing the USE flag for the dependency

1 # Copyright 1999-2009 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/virtualx.eclass,v 1.31 2009/10/19 23:52:39 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="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 #
48 # Brian Harring <ferringb@gentoo.org> 11/04/2004
49 # do not disable the sandbox during the depend phase.
50 # ebuilds shouldn't touch the fs during depend phase, nor screw with the sandbox.
51 #
52 if [[ ${EBUILD_PHASE/depend} == "${EBUILD_PHASE}" ]] ; then
53 [[ -z ${SANDBOX_DISABLED} ]] && export SANDBOX_DISABLED="0" || :
54 fi
55
56 virtualmake() {
57 local retval=0
58 local OLD_SANDBOX_DISABLED="${SANDBOX_DISABLED}"
59 local XVFB=$(type -p Xvfb)
60 local XHOST=$(type -p xhost)
61
62 # If $DISPLAY is not set, or xhost cannot connect to an X
63 # display, then do the Xvfb hack.
64 if [[ -n ${XVFB} && -n ${XHOST} ]] && \
65 ( [[ -z ${DISPLAY} ]] || ! (${XHOST} &>/dev/null) ) ; then
66 export XAUTHORITY=
67 # The following is derived from Mandrake's hack to allow
68 # compiling without the X display
69
70 einfo "Scanning for an open DISPLAY to start Xvfb ..."
71
72 # We really do not want SANDBOX enabled here
73 export SANDBOX_DISABLED="1"
74
75 local i=0
76 XDISPLAY=$(i=0; while [[ -f /tmp/.X${i}-lock ]] ; do ((i++));done; echo ${i})
77
78 # If we are in a chrooted environment, and there is already a
79 # X server started outside of the chroot, Xvfb will fail to start
80 # on the same display (most cases this is :0 ), so make sure
81 # Xvfb is started, else bump the display number
82 #
83 # Azarah - 5 May 2002
84 #
85 # Changed the mode from 800x600x32 to 800x600x24 because the mfb
86 # support has been dropped in Xvfb in the xorg-x11 pre-releases.
87 # For now only depths up to 24-bit are supported.
88 #
89 # Sven Wegener <swegener@gentoo.org> - 22 Aug 2004
90 #
91 # Use "-fp built-ins" because it's only part of the default font path
92 # for Xorg but not the other DDXs (Xvfb, Kdrive, etc). Temporarily fixes
93 # bug 278487 until xorg-server is properly patched
94 #
95 # RĂ©mi Cardona <remi@gentoo.org> (10 Aug 2009)
96 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
97 sleep 2
98
99 local start=${XDISPLAY}
100 while [[ ! -f /tmp/.X${XDISPLAY}-lock ]] ; do
101 # Stop trying after 15 tries
102 if ((XDISPLAY - start > 15)) ; then
103
104 eerror ""
105 eerror "Unable to start Xvfb."
106 eerror ""
107 eerror "'${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24' returns:"
108 eerror ""
109 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24
110 eerror ""
111 eerror "If possible, correct the above error and try your emerge again."
112 eerror ""
113 die
114 fi
115
116 ((XDISPLAY++))
117 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
118 sleep 2
119 done
120
121 # Now enable SANDBOX again if needed.
122 export SANDBOX_DISABLED="${OLD_SANDBOX_DISABLED}"
123
124 einfo "Starting Xvfb on \$DISPLAY=${XDISPLAY} ..."
125
126 export DISPLAY=:${XDISPLAY}
127 #Do not break on error, but setup $retval, as we need
128 #to kill Xvfb
129 ${maketype} "$@"
130 retval=$?
131
132 #Now kill Xvfb
133 kill $(cat /tmp/.X${XDISPLAY}-lock)
134 else
135 #Normal make if we can connect to an X display
136 ${maketype} "$@"
137 retval=$?
138 fi
139
140 return ${retval}
141 }
142
143 #Same as "make", but setup the Xvfb hack if needed
144 Xmake() {
145 export maketype="make"
146 virtualmake "$@"
147 }
148
149 #Same as "emake", but setup the Xvfb hack if needed
150 Xemake() {
151 export maketype="emake"
152 virtualmake "$@"
153 }
154
155 #Same as "econf", but setup the Xvfb hack if needed
156 Xeconf() {
157 export maketype="econf"
158 virtualmake "$@"
159 }

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