/[gentoo-x86]/eclass/eutils.eclass
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Revision 1.5 - (show annotations) (download)
Mon Nov 11 22:36:22 2002 UTC (11 years, 8 months ago) by azarah
Branch: MAIN
Changes since 1.4: +44 -2 lines
enhance debugging info for epatch()

1 # Copyright 1999-2002 Gentoo Technologies, Inc.
2 # Distributed under the terms of the GNU General Public License v2
3 # Author: Martin Schlemmer <azarah@gentoo.org>
4 # $Header: /home/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.4 2002/11/11 21:36:45 azarah Exp $
5 # This eclass is for general purpose functions that most ebuilds
6 # have to implement themselfs.
7 #
8 # NB: If you add anything, please comment it!
9
10 ECLASS=eutils
11 INHERITED="$INHERITED $ECLASS"
12
13 newdepend sys-devel/patch
14
15 DESCRIPTION="Based on the ${ECLASS} eclass"
16
17 # This function generate linker scripts in /usr/lib for dynamic
18 # libs in /lib. This is to fix linking problems when you have
19 # the .so in /lib, and the .a in /usr/lib. What happens is that
20 # in some cases when linking dynamic, the .a in /usr/lib is used
21 # instead of the .so in /lib due to gcc/libtool tweaking ld's
22 # library search path. This cause many builds to fail.
23 # See bug #4411 for more info.
24 #
25 # To use, simply call:
26 #
27 # gen_usr_ldscript libfoo.so
28 #
29 # Note that you should in general use the unversioned name of
30 # the library, as ldconfig should usually update it correctly
31 # to point to the latest version of the library present.
32 #
33 # <azarah@gentoo.org> (26 Oct 2002)
34 #
35 gen_usr_ldscript() {
36
37 # Just make sure it exists
38 dodir /usr/lib
39
40 cat > ${D}/usr/lib/$1 <<"END_LDSCRIPT"
41 /* GNU ld script
42 Because Gentoo have critical dynamic libraries
43 in /lib, and the static versions in /usr/lib, we
44 need to have a "fake" dynamic lib in /usr/lib,
45 otherwise we run into linking problems.
46 See bug #4411 on http://bugs.gentoo.org/ for
47 more info. */
48 GROUP ( /lib/libxxx )
49 END_LDSCRIPT
50
51 dosed "s:libxxx:$1:" /usr/lib/$1
52
53 return 0
54 }
55
56 # Simple function to draw a line consisting of '=' the same length as $*
57 #
58 # <azarah@gentoo.org> (11 Nov 2002)
59 #
60 draw_line() {
61 local i=0
62 local str_length=""
63
64 # Handle calls that do not have args, or wc not being installed ...
65 if [ -z "$1" -o ! -x "$(which wc 2>/dev/null)" ]
66 then
67 echo "==============================================================="
68 return 0
69 fi
70
71 # Get the length of $*
72 str_length="$(echo -n "$*" | wc -m)"
73
74 while [ "$i" -lt "${str_length}" ]
75 do
76 echo -n "="
77
78 i=$((i + 1))
79 done
80
81 echo
82
83 return 0
84 }
85
86 # Default directory where patches are located
87 EPATCH_SOURCE="${WORKDIR}/patch"
88 # Default extension for patches
89 EPATCH_SUFFIX="patch.bz2"
90 # Default options for patch
91 EPATCH_OPTS=""
92
93 # This function is for bulk patching, or in theory for just one
94 # or two patches.
95 #
96 # It should work with .bz2, .gz, .zip and plain text patches.
97 # Currently all patches should be the same format.
98 #
99 # You do not have to specify '-p' option to patch, as it will
100 # try with -p0 to -p5 until it succeed, or fail at -p5.
101 #
102 # Above EPATCH_* variables can be used to control various defaults,
103 # bug they should be left as is to ensure an ebuild can rely on
104 # them for.
105 #
106 # Patches are applied in current directory.
107 #
108 # Bulk Patches should preferibly have the form of:
109 #
110 # ??_${ARCH}_foo.${EPATCH_SUFFIX}
111 #
112 # For example:
113 #
114 # 01_all_misc-fix.patch.bz2
115 # 02_sparc_another-fix.patch.bz2
116 #
117 # This ensures that there are a set order, and you can have ARCH
118 # specific patches.
119 #
120 # If you however give an argument to epatch(), it will treat it as a
121 # single patch that need to be applied if its a file. If on the other
122 # hand its a directory, it will set EPATCH_SOURCE to this.
123 #
124 # <azarah@gentoo.org> (10 Nov 2002)
125 #
126 epatch() {
127 local PIPE_CMD=""
128 local STDERR_TARGET="${T}/$$.out"
129 local SINGLE_PATCH="no"
130 local x=""
131
132 if [ "$#" -gt 1 ]
133 then
134 eerror "Invalid arguments to epatch()"
135 die "Invalid arguments to epatch()"
136 fi
137
138 if [ -n "$1" -a -f "$1" ]
139 then
140 SINGLE_PATCH="yes"
141
142 local EPATCH_SOURCE="$1"
143 local EPATCH_SUFFIX="${1##*\.}"
144
145 elif [ -n "$1" -a -d "$1" ]
146 then
147 local EPATCH_SOURCE="$1/*.${EPATCH_SUFFIX}"
148 else
149 local EPATCH_SOURCE="${EPATCH_SOURCE}/*.${EPATCH_SUFFIX}"
150 fi
151
152 case ${EPATCH_SUFFIX##*\.} in
153 bz2)
154 PIPE_CMD="bzip2 -dc"
155 ;;
156 gz)
157 PIPE_CMD="gzip -dc"
158 ;;
159 zip)
160 PIPE_CMD="unzip -p"
161 ;;
162 *)
163 PIPE_CMD="cat"
164 ;;
165 esac
166
167 if [ "${SINGLE_PATCH}" = "no" ]
168 then
169 einfo "Applying various patches (bugfixes/updates)..."
170 fi
171 for x in ${EPATCH_SOURCE}
172 do
173 # New ARCH dependant patch naming scheme...
174 #
175 # ???_arch_foo.patch
176 #
177 if [ -f ${x} ] && \
178 [ -n "$1" -o "${x/_all_}" != "${x}" -o "`eval echo \$\{x/_${ARCH}_\}`" != "${x}" ]
179 then
180 local count=0
181 local popts="${EPATCH_OPTS}"
182
183 if [ "${SINGLE_PATCH}" = "yes" ]
184 then
185 einfo "Applying ${x##*/}..."
186 else
187 einfo " ${x##*/}..."
188 fi
189
190 echo "***** ${x##*/} *****" > ${STDERR_TARGET}
191 echo >> ${STDERR_TARGET}
192
193 # Allow for prefix to differ ... im lazy, so shoot me :/
194 while [ "${count}" -lt 5 ]
195 do
196 # Generate some useful debug info ...
197 draw_line "***** ${x##*/} *****" >> ${STDERR_TARGET}
198 echo >> ${STDERR_TARGET}
199
200 echo -n "PATCH COMMAND: " >> ${STDERR_TARGET}
201 echo "${PIPE_CMD} ${x} | patch ${popts} -p${count}" >> ${STDERR_TARGET}
202
203 echo >> ${STDERR_TARGET}
204 draw_line "***** ${x##*/} *****" >> ${STDERR_TARGET}
205
206 if eval ${PIPE_CMD} ${x} | patch ${popts} --dry-run -f -p${count} 2>&1 >> ${STDERR_TARGET}
207 then
208 eval ${PIPE_CMD} ${x} | patch ${popts} -p${count} 2>&1 >> ${STDERR_TARGET}
209 break
210 fi
211
212 count=$((count + 1))
213 done
214
215 if [ "${count}" -eq 5 ]
216 then
217 eerror "Failed Patch: ${x##*/}!"
218 eerror
219 eerror "Include in your bugreport the contents of:"
220 eerror
221 eerror " ${STDERR_TARGET}"
222 eerror
223 die "Failed Patch: ${x##*/}!"
224 fi
225
226 eend 0
227 fi
228 done
229 if [ "${SINGLE_PATCH}" = "no" ]
230 then
231 einfo "Done with patching"
232 fi
233 }

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