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Revision 1.67 Revision 1.84
1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2004 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 1.67 2003/11/18 18:45:04 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.84 2004/02/29 07:17:27 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.
10# NB: If you add anything, please comment it! 10# NB: If you add anything, please comment it!
11 11
12ECLASS=eutils 12ECLASS=eutils
13INHERITED="$INHERITED $ECLASS" 13INHERITED="$INHERITED $ECLASS"
14 14
15newdepend "!bootstrap? ( sys-devel/patch )" 15DEPEND="!bootstrap? ( sys-devel/patch )"
16 16
17DESCRIPTION="Based on the ${ECLASS} eclass" 17DESCRIPTION="Based on the ${ECLASS} eclass"
18 18
19# This function generate linker scripts in /usr/lib for dynamic 19# This function generate linker scripts in /usr/lib for dynamic
20# libs in /lib. This is to fix linking problems when you have 20# libs in /lib. This is to fix linking problems when you have
422 jobs="$((`grep "^cpus active" /proc/cpuinfo | sed -e "s/^.*: //"` * 2))" 422 jobs="$((`grep "^cpus active" /proc/cpuinfo | sed -e "s/^.*: //"` * 2))"
423 else 423 else
424 jobs=2 424 jobs=2
425 fi 425 fi
426 426
427 elif [ "${ARCH}" = "ppc" ] 427 elif [ "${ARCH}" = "ppc" -o "${ARCH}" = "ppc64" ]
428 then 428 then
429 # ppc has "processor", but only when compiled with SMP 429 # ppc has "processor", but only when compiled with SMP
430 if [ "`grep -c "^processor" /proc/cpuinfo`" -eq 1 ] 430 if [ "`grep -c "^processor" /proc/cpuinfo`" -eq 1 ]
431 then 431 then
432 jobs="$((`grep -c ^processor /proc/cpuinfo` * 2))" 432 jobs="$((`grep -c ^processor /proc/cpuinfo` * 2))"
456 fi 456 fi
457 fi 457 fi
458} 458}
459 459
460# Cheap replacement for when debianutils (and thus mktemp) 460# Cheap replacement for when debianutils (and thus mktemp)
461# do not exist on the users system 461# does not exist on the users system
462# vapier@gentoo.org 462# vapier@gentoo.org
463# 463#
464# Takes just 1 parameter (the directory to create tmpfile in) 464# Takes just 1 parameter (the directory to create tmpfile in)
465mymktemp() { 465mymktemp() {
466 local topdir="$1" 466 local topdir="$1"
496 then 496 then
497 eerror "No username specified !" 497 eerror "No username specified !"
498 die "Cannot call enewuser without a username" 498 die "Cannot call enewuser without a username"
499 fi 499 fi
500 500
501 # setup a file for testing usernames/groups
502 local tmpfile="`mymktemp ${T}`"
503 chown ${euser} ${tmpfile} >& /dev/null
504 local realuser="`ls -l ${tmpfile} | awk '{print $3}'`"
505
506 # see if user already exists 501 # lets see if the username already exists
507 if [ "${euser}" == "${realuser}" ] 502 if [ "${euser}" == "`getent passwd \"${euser}\" | cut -d: -f1`" ]
508 then 503 then
509 return 0 504 return 0
510 fi 505 fi
511 einfo "Adding user '${euser}' to your system ..." 506 einfo "Adding user '${euser}' to your system ..."
512 507
517 local euid="$1"; shift 512 local euid="$1"; shift
518 if [ ! -z "${euid}" ] && [ "${euid}" != "-1" ] 513 if [ ! -z "${euid}" ] && [ "${euid}" != "-1" ]
519 then 514 then
520 if [ "${euid}" -gt 0 ] 515 if [ "${euid}" -gt 0 ]
521 then 516 then
522 opts="${opts} -u ${euid}" 517 if [ ! -z "`getent passwd ${euid}`" ]
518 then
519 euid="next"
520 fi
523 else 521 else
524 eerror "Userid given but is not greater than 0 !" 522 eerror "Userid given but is not greater than 0 !"
525 die "${euid} is not a valid UID" 523 die "${euid} is not a valid UID"
526 fi 524 fi
527 else 525 else
528 euid="next available" 526 euid="next"
529 fi 527 fi
528 if [ "${euid}" == "next" ]
529 then
530 for euid in `seq 101 999` ; do
531 [ -z "`getent passwd ${euid}`" ] && break
532 done
533 fi
534 opts="${opts} -u ${euid}"
530 einfo " - Userid: ${euid}" 535 einfo " - Userid: ${euid}"
531 536
532 # handle shell 537 # handle shell
533 local eshell="$1"; shift 538 local eshell="$1"; shift
534 if [ ! -z "${eshell}" ] && [ "${eshell}" != "-1" ] 539 if [ ! -z "${eshell}" ] && [ "${eshell}" != "-1" ]
618 then 623 then
619 eerror "No group specified !" 624 eerror "No group specified !"
620 die "Cannot call enewgroup without a group" 625 die "Cannot call enewgroup without a group"
621 fi 626 fi
622 627
623 # setup a file for testing groupname
624 local tmpfile="`mymktemp ${T}`"
625 chgrp ${egroup} ${tmpfile} >& /dev/null
626 local realgroup="`ls -l ${tmpfile} | awk '{print $4}'`"
627
628 # see if group already exists 628 # see if group already exists
629 if [ "${egroup}" == "${realgroup}" ] 629 if [ "${egroup}" == "`getent group \"${egroup}\" | cut -d: -f1`" ]
630 then 630 then
631 return 0 631 return 0
632 fi 632 fi
633 einfo "Adding group '${egroup}' to your system ..." 633 einfo "Adding group '${egroup}' to your system ..."
634 634
639 local egid="$1"; shift 639 local egid="$1"; shift
640 if [ ! -z "${egid}" ] 640 if [ ! -z "${egid}" ]
641 then 641 then
642 if [ "${egid}" -gt 0 ] 642 if [ "${egid}" -gt 0 ]
643 then 643 then
644 if [ -z "`getent group ${egid}`" ]
645 then
644 opts="${opts} -g ${egid}" 646 opts="${opts} -g ${egid}"
647 else
648 egid="next available; requested gid taken"
649 fi
645 else 650 else
646 eerror "Groupid given but is not greater than 0 !" 651 eerror "Groupid given but is not greater than 0 !"
647 die "${egid} is not a valid GID" 652 die "${egid} is not a valid GID"
648 fi 653 fi
649 else 654 else
696 701
697 local exec="${1}" 702 local exec="${1}"
698 local name="${2:-${PN}}" 703 local name="${2:-${PN}}"
699 local icon="${3:-${PN}.png}" 704 local icon="${3:-${PN}.png}"
700 local type="${4}" 705 local type="${4}"
706 local subdir="${6}"
701 local path="${5:-${GAMES_PREFIX}}" 707 local path="${5:-${GAMES_PREFIX}}"
702 if [ -z "${type}" ] 708 if [ -z "${type}" ]
703 then 709 then
704 case ${CATEGORY} in 710 case ${CATEGORY} in
705 "app-emulation") 711 "app-emulation")
706 type=Emulator 712 type=Emulator
713 subdir="Games"
707 ;; 714 ;;
708 "games-"*) 715 "games-"*)
709 type=Game 716 type=Game
717 subdir="Games"
710 ;; 718 ;;
711 "net-"*) 719 "net-"*)
712 type=Network; 720 type=Network
721 subdir="${type}"
713 ;; 722 ;;
714 *) 723 *)
715 type= 724 type=
725 subdir=
716 ;; 726 ;;
717 esac 727 esac
718 fi 728 fi
719 local desktop="${T}/${exec}.desktop" 729 local desktop="${T}/${exec}.desktop"
720 730
750 # done 760 # done
751 #fi 761 #fi
752 762
753 if [ -d "/usr/share/applnk" ] 763 if [ -d "/usr/share/applnk" ]
754 then 764 then
755 insinto /usr/share/applnk/${type} 765 insinto /usr/share/applnk/${subdir}
756 doins ${desktop} 766 doins ${desktop}
757 fi 767 fi
758 768
759 return 0 769 return 0
760} 770}
761 771
762# new convenience patch wrapper function to eventually replace epatch(), 772# for internal use only (unpack_pdv and unpack_makeself)
763# $PATCHES, $PATCHES1, src_unpack:patch, src_unpack:autopatch and 773find_unpackable_file() {
764# /usr/bin/patch 774 local src="$1"
765# Features:
766# - bulk patch handling similar to epatch()'s
767# - automatic patch level detection like epatch()'s
768# - automatic patch uncompression like epatch()'s
769# - doesn't have the --dry-run overhead of epatch() - inspects patchfiles
770# manually instead
771# - once I decide it's production-ready, it'll be called from base_src_unpack
772# to handle $PATCHES to avoid defining src_unpack just to use xpatch
773
774# accepts zero or more parameters specifying patchfiles and/or patchdirs
775
776# known issues:
777# - only supports unified style patches (does anyone _really_ use anything
778# else?)
779# - because it doesn't use --dry-run there is a risk of it failing
780# to find the files to patch, ie detect the patchlevel, properly. It doesn't use
781# any of the backup heuristics that patch employs to discover a filename.
782# however, this isn't dangerous because if it works for the developer who's
783# writing the ebuild, it'll always work for the users, and if it doesn't,
784# then we'll fix it :-)
785# - no support as yet for patches applying outside $S (and not directly in $WORKDIR).
786xpatch() {
787
788 debug-print-function ${FUNCNAME} $*
789
790 local list=
791 local list2=
792 declare -i plevel
793
794 # parse patch sources
795 for x in $*
796 do
797 debug-print "${FUNCNAME}: parsing parameter ${x}"
798 if [ -f "${x}" ] 775 if [ -z "${src}" ]
799 then 776 then
800 list="${list} ${x}" 777 src="${DISTDIR}/${A}"
801 elif [ -d "${x}" ] 778 else
802 then 779 if [ -e "${DISTDIR}/${src}" ]
803 # handles patchdirs like epatch() for now: no recursion.
804 # patches are sorted by filename, so with an xy_foo naming scheme you'll get the right order.
805 # only patches with _$ARCH_ or _all_ in their filenames are applied.
806 for file in `ls -A ${x}`
807 do
808 debug-print "${FUNCNAME}: parsing in subdir: file ${file}"
809 if [ -f "${x}/${file}" -a "${file}" != "${file/_all_}" -o \
810 "${file}" != "${file/_$ARCH_}" ]
811 then 780 then
812 list2="${list2} ${x}/${file}" 781 src="${DISTDIR}/${src}"
782 elif [ -e "${PWD}/${src}" ]
783 then
784 src="${PWD}/${src}"
785 elif [ -e "${src}" ]
786 then
787 src="${src}"
813 fi 788 fi
814 done 789 fi
815 list="`echo ${list2} | sort` ${list}" 790 [ ! -e "${src}" ] && die "Could not find requested archive ${src}"
791 echo "${src}"
792}
793
794# Unpack those pesky pdv generated files ...
795# They're self-unpacking programs with the binary package stuffed in
796# the middle of the archive. Valve seems to use it a lot ... too bad
797# it seems to like to segfault a lot :(. So lets take it apart ourselves.
798#
799# Usage: unpack_pdv [file to unpack] [size of off_t]
800# - you have to specify the off_t size ... i have no idea how to extract that
801# information out of the binary executable myself. basically you pass in
802# the size of the off_t type (in bytes) on the machine that built the pdv
803# archive. one way to determine this is by running the following commands:
804# strings <pdv archive> | grep lseek
805# strace -elseek <pdv archive>
806# basically look for the first lseek command (we do the strings/grep because
807# sometimes the function call is _llseek or something) and steal the 2nd
808# parameter. here is an example:
809# root@vapier 0 pdv_unpack # strings hldsupdatetool.bin | grep lseek
810# lseek
811# root@vapier 0 pdv_unpack # strace -elseek ./hldsupdatetool.bin
812# lseek(3, -4, SEEK_END) = 2981250
813# thus we would pass in the value of '4' as the second parameter.
814unpack_pdv() {
815 local src="`find_unpackable_file $1`"
816 local sizeoff_t="$2"
817
818 [ -z "${sizeoff_t}" ] && die "No idea what off_t size was used for this pdv :("
819
820 local shrtsrc="`basename ${src}`"
821 echo ">>> Unpacking ${shrtsrc} to ${PWD}"
822 local metaskip=`tail -c ${sizeoff_t} ${src} | hexdump -e \"%i\"`
823 local tailskip=`tail -c $((${sizeoff_t}*2)) ${src} | head -c ${sizeoff_t} | hexdump -e \"%i\"`
824
825 # grab metadata for debug reasons
826 local metafile="`mymktemp ${T}`"
827 tail -c +$((${metaskip}+1)) ${src} > ${metafile}
828
829 # rip out the final file name from the metadata
830 local datafile="`tail -c +$((${metaskip}+1)) ${src} | strings | head -n 1`"
831 datafile="`basename ${datafile}`"
832
833 # now lets uncompress/untar the file if need be
834 local tmpfile="`mymktemp ${T}`"
835 tail -c +$((${tailskip}+1)) ${src} 2>/dev/null | head -c 512 > ${tmpfile}
836
837 local iscompressed="`file -b ${tmpfile}`"
838 if [ "${iscompressed:0:8}" == "compress" ] ; then
839 iscompressed=1
840 mv ${tmpfile}{,.Z}
841 gunzip ${tmpfile}
842 else
843 iscompressed=0
844 fi
845 local istar="`file -b ${tmpfile}`"
846 if [ "${istar:0:9}" == "POSIX tar" ] ; then
847 istar=1
848 else
849 istar=0
850 fi
851
852 #for some reason gzip dies with this ... dd cant provide buffer fast enough ?
853 #dd if=${src} ibs=${metaskip} count=1 \
854 # | dd ibs=${tailskip} skip=1 \
855 # | gzip -dc \
856 # > ${datafile}
857 if [ ${iscompressed} -eq 1 ] ; then
858 if [ ${istar} -eq 1 ] ; then
859 tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
860 | head -c $((${metaskip}-${tailskip})) \
861 | tar -xzf -
816 else 862 else
817 die "Couldn't find ${x}" 863 tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
864 | head -c $((${metaskip}-${tailskip})) \
865 | gzip -dc \
866 > ${datafile}
867 fi
868 else
869 if [ ${istar} -eq 1 ] ; then
870 tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
871 | head -c $((${metaskip}-${tailskip})) \
872 | tar --no-same-owner -xf -
873 else
874 tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
875 | head -c $((${metaskip}-${tailskip})) \
876 > ${datafile}
877 fi
818 fi 878 fi
819 done 879 true
820 880 #[ -s "${datafile}" ] || die "failure unpacking pdv ('${metaskip}' '${tailskip}' '${datafile}')"
821 debug-print "${FUNCNAME}: final list of patches: ${list}" 881 #assert "failure unpacking pdv ('${metaskip}' '${tailskip}' '${datafile}')"
822
823 for x in ${list};
824 do
825 debug-print "${FUNCNAME}: processing ${x}"
826 # deal with compressed files. /usr/bin/file is in the system profile, or should be.
827 case "`/usr/bin/file -b ${x}`" in
828 *gzip*)
829 patchfile="${T}/current.patch"
830 ungzip -c "${x}" > "${patchfile}"
831 ;;
832 *bzip2*)
833 patchfile="${T}/current.patch"
834 bunzip2 -c "${x}" > "${patchfile}"
835 ;;
836 *text*)
837 patchfile="${x}"
838 ;;
839 *)
840 die "Could not determine filetype of patch ${x}"
841 ;;
842 esac
843 debug-print "${FUNCNAME}: patchfile=${patchfile}"
844
845 # determine patchlevel. supports p0 and higher with either $S or $WORKDIR as base.
846 target="`/bin/grep -m 1 '^+++ ' ${patchfile}`"
847 debug-print "${FUNCNAME}: raw target=${target}"
848 # strip target down to the path/filename, remove leading +++
849 target="${target/+++ }"; target="${target%% *}"
850 # duplicate slashes are discarded by patch wrt the patchlevel. therefore we need
851 # to discard them as well to calculate the correct patchlevel.
852 target="${target//\/\//\/}"
853 debug-print "${FUNCNAME}: stripped target=${target}"
854
855 # look for target
856 for basedir in "${S}" "${WORKDIR}" "${PWD}"; do
857 debug-print "${FUNCNAME}: looking in basedir=${basedir}"
858 cd "${basedir}"
859
860 # try stripping leading directories
861 target2="${target}"
862 plevel=0
863 debug-print "${FUNCNAME}: trying target2=${target2}, plevel=${plevel}"
864 while [ ! -f "${target2}" ]
865 do
866 target2="${target2#*/}" # removes piece of target2 upto the first occurence of /
867 plevel=$((plevel+1))
868 debug-print "${FUNCNAME}: trying target2=${target2}, plevel=${plevel}"
869 [ "${target2}" == "${target2/\/}" ] && break
870 done
871 test -f "${target2}" && break
872
873 # try stripping filename - needed to support patches creating new files
874 target2="${target%/*}"
875 plevel=0
876 debug-print "${FUNCNAME}: trying target2=${target2}, plevel=${plevel}"
877 while [ ! -d "${target2}" ]
878 do
879 target2="${target2#*/}" # removes piece of target2 upto the first occurence of /
880 plevel=$((plevel+1))
881 debug-print "${FUNCNAME}: trying target2=${target2}, plevel=${plevel}"
882 [ "${target2}" == "${target2/\/}" ] && break
883 done
884 test -d "${target2}" && break
885
886 done
887
888 test -f "${basedir}/${target2}" || test -d "${basedir}/${target2}" \
889 || die "Could not determine patchlevel for ${x}"
890 debug-print "${FUNCNAME}: determined plevel=${plevel}"
891 # do the patching
892 ebegin "Applying patch ${x##*/}..."
893 /usr/bin/patch -p${plevel} < "${patchfile}" > /dev/null \
894 || die "Failed to apply patch ${x}"
895 eend $?
896
897 done
898
899} 882}
900 883
901# Unpack those pesky makeself generated files ... 884# Unpack those pesky makeself generated files ...
902# They're shell scripts with the binary package tagged onto 885# They're shell scripts with the binary package tagged onto
903# the end of the archive. Loki utilized the format as does 886# the end of the archive. Loki utilized the format as does
906# Usage: unpack_makeself [file to unpack] [offset] 889# Usage: unpack_makeself [file to unpack] [offset]
907# - If the file is not specified then unpack will utilize ${A}. 890# - If the file is not specified then unpack will utilize ${A}.
908# - If the offset is not specified then we will attempt to extract 891# - If the offset is not specified then we will attempt to extract
909# the proper offset from the script itself. 892# the proper offset from the script itself.
910unpack_makeself() { 893unpack_makeself() {
911 local src="$1" 894 local src="`find_unpackable_file $1`"
912 local skip="$2" 895 local skip="$2"
913
914 if [ -z "${src}" ]
915 then
916 src="${DISTDIR}/${A}"
917 else
918 if [ -e "${DISTDIR}/${src}" ]
919 then
920 src="${DISTDIR}/${src}"
921 elif [ -e "${PWD}/${src}" ]
922 then
923 src="${PWD}/${src}"
924 elif [ -e "${src}" ]
925 then
926 src="${src}"
927 fi
928 fi
929 [ ! -e "${src}" ] && die "Could not find requested makeself archive ${src}"
930 896
931 local shrtsrc="`basename ${src}`" 897 local shrtsrc="`basename ${src}`"
932 echo ">>> Unpacking ${shrtsrc} to ${PWD}" 898 echo ">>> Unpacking ${shrtsrc} to ${PWD}"
933 if [ -z "${skip}" ] 899 if [ -z "${skip}" ]
934 then 900 then
962 ;; 928 ;;
963 esac 929 esac
964 debug-print "Detected Makeself version ${ver} ... using ${skip} as offset" 930 debug-print "Detected Makeself version ${ver} ... using ${skip} as offset"
965 fi 931 fi
966 932
967 # we do this because otherwise a failure in gzip will cause 0 bytes to be sent 933 # lets grab the first few bytes of the file to figure out what kind of archive it is
968 # to tar which will make tar not extract anything and exit with 0 934 local tmpfile="`mymktemp ${T}`"
969 tail -n +${skip} ${src} 2>/dev/null \ 935 tail -n +${skip} ${src} 2>/dev/null | head -c 512 > ${tmpfile}
970 | gzip -cd 2>/dev/null \ 936 local filetype="`file -b ${tmpfile}`"
971 | tar -x --no-same-owner -f - 2>/dev/null 937 case ${filetype} in
972 local pipestatus="${PIPESTATUS[*]}" 938 *tar\ archive)
973 pipestatus="${pipestatus// }" 939 tail -n +${skip} ${src} | tar --no-same-owner -xf -
974 if [ "${pipestatus//0}" != "" ] 940 ;;
975 then 941 bzip2*)
976 # maybe it isnt gzipped ... they usually are, but not always ... 942 tail -n +${skip} ${src} | bzip2 -dc | tar --no-same-owner -xf -
977 tail -n +${skip} ${src} 2>/dev/null \ 943 ;;
978 | tar -x --no-same-owner -f - 2>/dev/null 944 gzip*)
979 pipestatus="${pipestatus// }" 945 tail -n +${skip} ${src} | tar --no-same-owner -xzf -
980 if [ "${pipestatus//0}" != "" ] 946 ;;
981 then 947 *)
982 # and every once in a while they are bzipped2 ... 948 false
983 tail -n +${skip} ${src} 2>/dev/null \ 949 ;;
984 | bunzip2 -c 2>/dev/null \ 950 esac
985 | tar -x --no-same-owner -f - 2>/dev/null \
986 || die "failure unpacking makeself ${shrtsrc} ('${ver}' +${skip})" 951 assert "failure unpacking (${filetype}) makeself ${shrtsrc} ('${ver}' +${skip})"
987 fi
988 fi
989} 952}
990 953
991# Display a license for user to accept. 954# Display a license for user to accept.
992# 955#
993# Usage: check_license [license] 956# Usage: check_license [license]
1009 local l="`basename ${lic}`" 972 local l="`basename ${lic}`"
1010 973
1011 # here is where we check for the licenses the user already 974 # here is where we check for the licenses the user already
1012 # accepted ... if we don't find a match, we make the user accept 975 # accepted ... if we don't find a match, we make the user accept
1013 local alic 976 local alic
1014 for alic in ${ACCEPT_LICENSE} ; do 977 for alic in "${ACCEPT_LICENSE}" ; do
1015 [ "${alic}" == "*" ] && return 0 978 [ "${alic}" == "*" ] && return 0
1016 [ "${alic}" == "${l}" ] && return 0 979 [ "${alic}" == "${l}" ] && return 0
1017 done 980 done
1018 981
1019 local licmsg="`mymktemp ${T}`" 982 local licmsg="`mymktemp ${T}`"
1039 eerror "You MUST accept the license to continue! Exiting!" 1002 eerror "You MUST accept the license to continue! Exiting!"
1040 die "Failed to accept license" 1003 die "Failed to accept license"
1041 ;; 1004 ;;
1042 esac 1005 esac
1043} 1006}
1007
1008# Aquire cd(s) for those lovely cd-based emerges. Yes, this violates
1009# the whole 'non-interactive' policy, but damnit I want CD support !
1010#
1011# with these cdrom functions we handle all the user interaction and
1012# standardize everything. all you have to do is call cdrom_get_cds()
1013# and when the function returns, you can assume that the cd has been
1014# found at CDROM_ROOT.
1015#
1016# normally the cdrom functions will refer to the cds as 'cd #1', 'cd #2',
1017# etc... if you want to give the cds better names, then just export
1018# the CDROM_NAME_X variables before calling cdrom_get_cds().
1019#
1020# for those multi cd ebuilds, see the cdrom_load_next_cd() below.
1021#
1022# Usage: cdrom_get_cds <file on cd1> [file on cd2] [file on cd3] [...]
1023# - this will attempt to locate a cd based upon a file that is on
1024# the cd ... the more files you give this function, the more cds
1025# the cdrom functions will handle
1026cdrom_get_cds() {
1027 # first we figure out how many cds we're dealing with by
1028 # the # of files they gave us
1029 local cdcnt=0
1030 local f=
1031 for f in "$@" ; do
1032 cdcnt=$((cdcnt + 1))
1033 export CDROM_CHECK_${cdcnt}="$f"
1034 done
1035 export CDROM_TOTAL_CDS=${cdcnt}
1036 export CDROM_CURRENT_CD=1
1037
1038 # now we see if the user gave use CD_ROOT ...
1039 # if they did, let's just believe them that it's correct
1040 if [ ! -z "${CD_ROOT}" ] ; then
1041 export CDROM_ROOT="${CD_ROOT}"
1042 einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
1043 return
1044 fi
1045 # do the same for CD_ROOT_X
1046 if [ ! -z "${CD_ROOT_1}" ] ; then
1047 local var=
1048 cdcnt=0
1049 while [ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ] ; do
1050 cdcnt=$((cdcnt + 1))
1051 var="CD_ROOT_${cdcnt}"
1052 if [ -z "${!var}" ] ; then
1053 eerror "You must either use just the CD_ROOT"
1054 eerror "or specify ALL the CD_ROOT_X variables."
1055 eerror "In this case, you will need ${CDROM_TOTAL_CDS} CD_ROOT_X variables."
1056 die "could not locate CD_ROOT_${cdcnt}"
1057 fi
1058 export CDROM_ROOTS_${cdcnt}="${!var}"
1059 done
1060 export CDROM_ROOT=${CDROM_ROOTS_1}
1061 einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
1062 return
1063 fi
1064
1065 if [ ${CDROM_TOTAL_CDS} -eq 1 ] ; then
1066 einfon "This ebuild will need the "
1067 if [ -z "${CDROM_NAME}" ] ; then
1068 echo "cdrom for ${PN}."
1069 else
1070 echo "${CDROM_NAME}."
1071 fi
1072 echo
1073 einfo "If you do not have the CD, but have the data files"
1074 einfo "mounted somewhere on your filesystem, just export"
1075 einfo "the variable CD_ROOT so that it points to the"
1076 einfo "directory containing the files."
1077 echo
1078 else
1079 einfo "This package will need access to ${CDROM_TOTAL_CDS} cds."
1080 cdcnt=0
1081 while [ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ] ; do
1082 cdcnt=$((cdcnt + 1))
1083 var="CDROM_NAME_${cdcnt}"
1084 [ ! -z "${!var}" ] && einfo " CD ${cdcnt}: ${!var}"
1085 done
1086 echo
1087 einfo "If you do not have the CDs, but have the data files"
1088 einfo "mounted somewhere on your filesystem, just export"
1089 einfo "the following variables so they point to the right place:"
1090 einfon ""
1091 cdcnt=0
1092 while [ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ] ; do
1093 cdcnt=$((cdcnt + 1))
1094 echo -n " CD_ROOT_${cdcnt}"
1095 done
1096 echo
1097 einfo "Or, if you have all the files in the same place, or"
1098 einfo "you only have one cdrom, you can export CD_ROOT"
1099 einfo "and that place will be used as the same data source"
1100 einfo "for all the CDs."
1101 echo
1102 fi
1103 export CDROM_CURRENT_CD=0
1104 cdrom_load_next_cd
1105}
1106
1107# this is only used when you need access to more than one cd.
1108# when you have finished using the first cd, just call this function.
1109# when it returns, CDROM_ROOT will be pointing to the second cd.
1110# remember, you can only go forward in the cd chain, you can't go back.
1111cdrom_load_next_cd() {
1112 export CDROM_CURRENT_CD=$((CDROM_CURRENT_CD + 1))
1113 local var=
1114
1115 if [ ! -z "${CD_ROOT}" ] ; then
1116 einfo "Using same root as before for CD #${CDROM_CURRENT_CD}"
1117 return
1118 fi
1119
1120 unset CDROM_ROOT
1121 var=CDROM_ROOTS_${CDROM_CURRENT_CD}
1122 if [ -z "${!var}" ] ; then
1123 var="CDROM_CHECK_${CDROM_CURRENT_CD}"
1124 cdrom_locate_file_on_cd ${!var}
1125 else
1126 export CDROM_ROOT="${!var}"
1127 fi
1128
1129 einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
1130}
1131
1132# this is used internally by the cdrom_get_cds() and cdrom_load_next_cd()
1133# functions. this should *never* be called from an ebuild.
1134# all it does is try to locate a give file on a cd ... if the cd isn't
1135# found, then a message asking for the user to insert the cdrom will be
1136# displayed and we'll hang out here until:
1137# (1) the file is found on a mounted cdrom
1138# (2) the user hits CTRL+C
1139cdrom_locate_file_on_cd() {
1140 while [ -z "${CDROM_ROOT}" ] ; do
1141 local dir="$(dirname ${@})"
1142 local file="$(basename ${@})"
1143 local mline=""
1144 local showedmsg=0
1145
1146 for mline in `mount | egrep -e '(iso|cdrom)' | awk '{print $3}'` ; do
1147 [ -d "${mline}/${dir}" ] || continue
1148 [ ! -z "$(find ${mline}/${dir} -iname ${file} -maxdepth 1)" ] \
1149 && export CDROM_ROOT=${mline}
1150 done
1151
1152 if [ -z "${CDROM_ROOT}" ] ; then
1153 echo
1154 if [ ${showedmsg} -eq 0 ] ; then
1155 if [ ${CDROM_TOTAL_CDS} -eq 1 ] ; then
1156 if [ -z "${CDROM_NAME}" ] ; then
1157 einfo "Please insert the cdrom for ${PN} now !"
1158 else
1159 einfo "Please insert the ${CDROM_NAME} cdrom now !"
1160 fi
1161 else
1162 if [ -z "${CDROM_NAME_1}" ] ; then
1163 einfo "Please insert cd #${CDROM_CURRENT_CD} for ${PN} now !"
1164 else
1165 local var="CDROM_NAME_${CDROM_CURRENT_CD}"
1166 einfo "Please insert+mount the ${!var} cdrom now !"
1167 fi
1168 fi
1169 showedmsg=1
1170 fi
1171 einfo "Press return to scan for the cd again"
1172 einfo "or hit CTRL+C to abort the emerge."
1173 read
1174 fi
1175 done
1176}

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