/[gentoo-x86]/eclass/virtualx.eclass
Gentoo

Contents of /eclass/virtualx.eclass

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.35 - (show annotations) (download)
Sat May 15 05:40:46 2010 UTC (4 years, 4 months ago) by dirtyepic
Branch: MAIN
Changes since 1.34: +31 -18 lines
Document for eclass-manpages.

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 1.34 2010/03/04 21:18:27 abcd Exp $
4
5 # Original author: Martin Schlemmer <azarah@gentoo.org>
6
7 # @ECLASS: virtualx.eclass
8 # @MAINTAINER:
9 # x11@gentoo.org
10 # @BLURB: This eclass can be used for packages that needs a working X environment to build.
11
12 # @ECLASS-VARIABLE: VIRTUALX_REQUIRED
13 # @DESCRIPTION:
14 # Is a dependency on xorg-server and xhost needed?
15 # Valid values are "always", "optional", and "manual".
16 # "tests" is a synonym for "optional".
17 : ${VIRTUALX_REQUIRED:=optional}
18
19 # @ECLASS-VARIABLE: VIRTUALX_USE
20 # @DESCRIPTION:
21 # If VIRTUALX_REQUIRED=optional, what USE flag should control
22 # the dependency?
23 : ${VIRTUALX_USE:=test}
24
25 # @ECLASS-VARIABLE: VIRTUALX_DEPEND
26 # @DESCRIPTION:
27 # Dep string available for use outside of eclass, in case a more
28 # complicated dep is needed.
29 VIRTUALX_DEPEND="!prefix? ( x11-base/xorg-server )
30 x11-apps/xhost"
31
32 case ${VIRTUALX_REQUIRED} in
33 always)
34 DEPEND="${VIRTUALX_DEPEND}"
35 RDEPEND=""
36 ;;
37 optional|tests)
38 DEPEND="${VIRTUALX_USE}? ( ${VIRTUALX_DEPEND} )"
39 RDEPEND=""
40 IUSE="${VIRTUALX_USE}"
41 ;;
42 manual)
43 ;;
44 *)
45 eerror "Invalid value (${VIRTUALX_REQUIRED}) for VIRTUALX_REQUIRED"
46 eerror "Valid values are:"
47 eerror " always"
48 eerror " optional (default if unset)"
49 eerror " manual"
50 die "Invalid value (${VIRTUALX_REQUIRED}) for VIRTUALX_REQUIRED"
51 ;;
52 esac
53
54 virtualmake() {
55 local retval=0
56 local OLD_SANDBOX_ON="${SANDBOX_ON}"
57 local XVFB=$(type -p Xvfb)
58 local XHOST=$(type -p xhost)
59
60 # If $DISPLAY is not set, or xhost cannot connect to an X
61 # display, then do the Xvfb hack.
62 if [[ -n ${XVFB} && -n ${XHOST} ]] && \
63 ( [[ -z ${DISPLAY} ]] || ! (${XHOST} &>/dev/null) ) ; then
64 export XAUTHORITY=
65 # The following is derived from Mandrake's hack to allow
66 # compiling without the X display
67
68 einfo "Scanning for an open DISPLAY to start Xvfb ..."
69
70 # We really do not want SANDBOX enabled here
71 export SANDBOX_ON="0"
72
73 local i=0
74 XDISPLAY=$(i=0; while [[ -f /tmp/.X${i}-lock ]] ; do ((i++));done; echo ${i})
75
76 # If we are in a chrooted environment, and there is already a
77 # X server started outside of the chroot, Xvfb will fail to start
78 # on the same display (most cases this is :0 ), so make sure
79 # Xvfb is started, else bump the display number
80 #
81 # Azarah - 5 May 2002
82 #
83 # Changed the mode from 800x600x32 to 800x600x24 because the mfb
84 # support has been dropped in Xvfb in the xorg-x11 pre-releases.
85 # For now only depths up to 24-bit are supported.
86 #
87 # Sven Wegener <swegener@gentoo.org> - 22 Aug 2004
88 #
89 # Use "-fp built-ins" because it's only part of the default font path
90 # for Xorg but not the other DDXs (Xvfb, Kdrive, etc). Temporarily fixes
91 # bug 278487 until xorg-server is properly patched
92 #
93 # RĂ©mi Cardona <remi@gentoo.org> (10 Aug 2009)
94 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
95 sleep 2
96
97 local start=${XDISPLAY}
98 while [[ ! -f /tmp/.X${XDISPLAY}-lock ]] ; do
99 # Stop trying after 15 tries
100 if ((XDISPLAY - start > 15)) ; then
101
102 eerror ""
103 eerror "Unable to start Xvfb."
104 eerror ""
105 eerror "'${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24' returns:"
106 eerror ""
107 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24
108 eerror ""
109 eerror "If possible, correct the above error and try your emerge again."
110 eerror ""
111 die
112 fi
113
114 ((XDISPLAY++))
115 ${XVFB} :${XDISPLAY} -fp built-ins -screen 0 800x600x24 &>/dev/null &
116 sleep 2
117 done
118
119 # Now enable SANDBOX again if needed.
120 export SANDBOX_ON="${OLD_SANDBOX_ON}"
121
122 einfo "Starting Xvfb on \$DISPLAY=${XDISPLAY} ..."
123
124 export DISPLAY=:${XDISPLAY}
125 #Do not break on error, but setup $retval, as we need
126 #to kill Xvfb
127 ${maketype} "$@"
128 retval=$?
129
130 #Now kill Xvfb
131 kill $(cat /tmp/.X${XDISPLAY}-lock)
132 else
133 #Normal make if we can connect to an X display
134 ${maketype} "$@"
135 retval=$?
136 fi
137
138 return ${retval}
139 }
140
141 # @FUNCTION: Xmake
142 # @DESCRIPTION:
143 # Same as "make", but set up the Xvfb hack if needed.
144 Xmake() {
145 export maketype="make"
146 virtualmake "$@"
147 }
148
149 # @FUNCTION: Xemake
150 # @DESCRIPTION:
151 # Same as "emake", but set up the Xvfb hack if needed.
152 Xemake() {
153 export maketype="emake"
154 virtualmake "$@"
155 }
156
157 # @FUNCTION: Xeconf
158 # @DESCRIPTION:
159 # Same as "econf", but set up the Xvfb hack if needed.
160 Xeconf() {
161 export maketype="econf"
162 virtualmake "$@"
163 }

  ViewVC Help
Powered by ViewVC 1.1.20