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1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2003 Gentoo Technologies, Inc.
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.74 2003/12/09 20:18:36 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.75 2004/01/13 06:11:08 vapier Exp $
4# 4#
5# Author: Martin Schlemmer <azarah@gentoo.org> 5# Author: Martin Schlemmer <azarah@gentoo.org>
6# 6#
7# This eclass is for general purpose functions that most ebuilds 7# This eclass is for general purpose functions that most ebuilds
8# have to implement themselves. 8# have to implement themselves.
… …
1131 eerror "You MUST accept the license to continue! Exiting!" 1131 eerror "You MUST accept the license to continue! Exiting!"
1132 die "Failed to accept license" 1132 die "Failed to accept license"
1133 ;; 1133 ;;
1134 esac 1134 esac
1135} 1135}
1136
1137# Aquire cd(s) for those lovely cd-based emerges. Yes, this violates
1138# the whole 'non-interactive' policy, but damnit I want CD support !
1139#
1140# with these cdrom functions we handle all the user interaction and
1141# standardize everything. all you have to do is call cdrom_get_cds()
1142# and when the function returns, you can assume that the cd has been
1143# found at CDROM_ROOT.
1144#
1145# normally the cdrom functions will refer to the cds as 'cd #1', 'cd #2',
1146# etc... if you want to give the cds better names, then just export
1147# the CDROM_NAME_X variables before calling cdrom_get_cds().
1148#
1149# for those multi cd ebuilds, see the cdrom_load_next_cd() below.
1150#
1151# Usage: cdrom_get_cds <file on cd1> [file on cd2] [file on cd3] [...]
1152# - this will attempt to locate a cd based upon a file that is on
1153# the cd ... the more files you give this function, the more cds
1154# the cdrom functions will handle
1155cdrom_get_cds() {
1156 # first we figure out how many cds we're dealing with by
1157 # the # of files they gave us
1158 local cdcnt=0
1159 local f=
1160 for f in "$@" ; do
1161 cdcnt=$((cdcnt + 1))
1162 export CDROM_CHECK_${cdcnt}="$f"
1163 done
1164 export CDROM_TOTAL_CDS=${cdcnt}
1165 export CDROM_CURRENT_CD=1
1166
1167 # now we see if the user gave use CD_ROOT ...
1168 # if they did, let's just believe them that it's correct
1169 if [ ! -z "${CD_ROOT}" ] ; then
1170 export CDROM_ROOT="${CD_ROOT}"
1171 einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
1172 return
1173 fi
1174 # do the same for CD_ROOT_X
1175 if [ ! -z "${CD_ROOT_1}" ] ; then
1176 local var=
1177 cdcnt=0
1178 while [ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ] ; do
1179 cdcnt=$((cdcnt + 1))
1180 var="CD_ROOT_${cdcnt}"
1181 if [ -z "${!var}" ] ; then
1182 eerror "You must either use just the CD_ROOT"
1183 eerror "or specify ALL the CD_ROOT_X variables."
1184 eerror "In this case, you will need ${CDROM_TOTAL_CDS} CD_ROOT_X variables."
1185 die "could not locate CD_ROOT_${cdcnt}"
1186 fi
1187 export CDROM_ROOTS_${cdcnt}="${!var}"
1188 done
1189 export CDROM_ROOT=${CDROM_ROOTS_1}
1190 einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
1191 return
1192 fi
1193
1194 if [ ${CDROM_TOTAL_CDS} -eq 1 ] ; then
1195 einfon "This ebuild will need the "
1196 if [ -z "${CDROM_NAME}" ] ; then
1197 echo "cdrom for ${PN}."
1198 else
1199 echo "${CDROM_NAME}."
1200 fi
1201 echo
1202 einfo "If you do not have the CD, but have the data files"
1203 einfo "mounted somewhere on your filesystem, just export"
1204 einfo "the variable CD_ROOT so that it points to the"
1205 einfo "directory containing the files."
1206 echo
1207 else
1208 einfo "This package will need access to ${CDROM_TOTAL_CDS} cds."
1209 cdcnt=0
1210 while [ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ] ; do
1211 cdcnt=$((cdcnt + 1))
1212 var="CDROM_NAME_${cdcnt}"
1213 [ ! -z "${!var}" ] && einfo " CD ${cdcnt}: ${!var}"
1214 done
1215 echo
1216 einfo "If you do not have the CDs, but have the data files"
1217 einfo "mounted somewhere on your filesystem, just export"
1218 einfo "the following variables so they point to the right place:"
1219 einfon ""
1220 cdcnt=0
1221 while [ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ] ; do
1222 cdcnt=$((cdcnt + 1))
1223 echo -n " CD_ROOT_${cdcnt}"
1224 done
1225 echo
1226 einfo "Or, if you have all the files in the same place, or"
1227 einfo "you only have one cdrom, you can export CD_ROOT"
1228 einfo "and that place will be used as the same data source"
1229 einfo "for all the CDs."
1230 echo
1231 fi
1232 export CDROM_CURRENT_CD=0
1233 cdrom_load_next_cd
1234}
1235
1236# this is only used when you need access to more than one cd.
1237# when you have finished using the first cd, just call this function.
1238# when it returns, CDROM_ROOT will be pointing to the second cd.
1239# remember, you can only go forward in the cd chain, you can't go back.
1240cdrom_load_next_cd() {
1241 export CDROM_CURRENT_CD=$((CDROM_CURRENT_CD + 1))
1242 local var=
1243
1244 unset CDROM_ROOT
1245 var=CDROM_ROOTS_${CDROM_CURRENT_CD}
1246 if [ -z "${!var}" ] ; then
1247 var="CDROM_CHECK_${CDROM_CURRENT_CD}"
1248 cdrom_locate_file_on_cd ${!var}
1249 else
1250 export CDROM_ROOT="${!var}"
1251 fi
1252
1253 einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
1254}
1255
1256# this is used internally by the cdrom_get_cds() and cdrom_load_next_cd()
1257# functions. this should *never* be called from an ebuild.
1258# all it does is try to locate a give file on a cd ... if the cd isn't
1259# found, then a message asking for the user to insert the cdrom will be
1260# displayed and we'll hang out here until:
1261# (1) the file is found on a mounted cdrom
1262# (2) the user hits CTRL+C
1263cdrom_locate_file_on_cd() {
1264 while [ -z "${CDROM_ROOT}" ] ; do
1265 local dir="$(dirname ${@})"
1266 local file="$(basename ${@})"
1267 local mline=""
1268 local showedmsg=0
1269
1270 for mline in `mount | egrep -e '(iso|cdrom)' | awk '{print $3}'` ; do
1271 [ -d "${mline}/${dir}" ] || continue
1272 [ ! -z "$(find ${mline}/${dir} -iname ${file} -maxdepth 1)" ] \
1273 && export CDROM_ROOT=${mline}
1274 done
1275
1276 if [ -z "${CDROM_ROOT}" ] ; then
1277 echo
1278 if [ ${showedmsg} -eq 0 ] ; then
1279 if [ ${CDROM_TOTAL_CDS} -eq 1 ] ; then
1280 if [ -z "${CDROM_NAME}" ] ; then
1281 einfo "Please insert the cdrom for ${PN} now !"
1282 else
1283 einfo "Please insert the ${CDROM_NAME} cdrom now !"
1284 fi
1285 else
1286 if [ -z "${CDROM_NAME_1}" ] ; then
1287 einfo "Please insert cd #${CDROM_CURRENT_CD} for ${PN} now !"
1288 else
1289 local var="CDROM_NAME_${CDROM_CURRENT_CD}"
1290 einfo "Please insert+mount the ${!var} cdrom now !"
1291 fi
1292 fi
1293 showedmsg=1
1294 fi
1295 einfo "Press return to scan for the cd again"
1296 einfo "or hit CTRL+C to abort the emerge."
1297 read
1298 fi
1299 done
1300}
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