243 lines
7.3 KiB
Bash
Executable File
243 lines
7.3 KiB
Bash
Executable File
#!/bin/sh -efu
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#
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# Copyright (C) 2002-2003 Dmitry V. Levin <ldv@altlinux.org>
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# Copyright (C) 2007 Alexey Tourbin <at@altlinux.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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. @RPMCONFIGDIR@/functions
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RPM_FINDPACKAGE_PATH="${RPM_FINDPACKAGE_PATH-}:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/bin"
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RPM_FINDPACKAGE_PATH="$(IFS="$IFS:"; set -f; echo '' $RPM_FINDPACKAGE_PATH |sed -e 's/ */:/g; s/^://')"
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Debug "RPM_FINDPACKAGE_PATH=$RPM_FINDPACKAGE_PATH"
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# Below we use 'local Verbose=Info' to increase per-case verbosity.
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Verbose=Verbose
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FindByPath()
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{
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# Dependence name starts with `/'.
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local f="$1" rep="$2" package; shift 2 || return
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# Does it start with buildroot?
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if [ -n "${RPM_BUILD_ROOT-}" ] && [ -z "${rep##$RPM_BUILD_ROOT*}" ]; then
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Info "$f: invalid dependence: $rep"
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return 1
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fi
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# Does it belong to buildroot?
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if [ -n "${RPM_BUILD_ROOT-}" ] && [ -e "$RPM_BUILD_ROOT$rep" ]; then
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$Verbose "$f: $rep -> \$RPM_BUILD_ROOT$rep (skip)"
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return
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fi
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# Is it an alternative?
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if readlink "$rep" |grep -qs '^/etc/alternatives/'; then
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$Verbose "$f: $rep -> $rep (alternative)"
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printf %s\\n "$rep"
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return
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fi
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# Always try package binary index.
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local idx_bin="${RPM_PKG_CONTENTS_INDEX_BIN-}" try_idx_bin=1
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[ -n "$idx_bin" ] && [ -s "$idx_bin" ] && [ -r "$idx_bin" ] || try_idx_bin=
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if [ -n "$try_idx_bin" ]; then
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package="$(awk -v "f=$rep" '($1 == f) {print $2}' "$idx_bin" |sort -u)"
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local n="$(IFS=$'\n'; set -- $package; echo $#)"
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if [ "$n" = 1 ]; then
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$Verbose "$f: $rep -> $package (via contents_index_bin)"
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printf %s\\n "$package"
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return
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elif [ "$n" -gt 1 ]; then
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Info "$f: $rep indexed by:$(echo '' $package)"
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Info "$f: $rep -> $rep (raw, ambiguous, via contents_index_bin)"
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printf %s\\n "$rep"
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return
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fi
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fi
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# Maybe try pkg complete index.
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local idx_all="${RPM_PKG_CONTENTS_INDEX_ALL-}" try_idx_all=1
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[ -n "$idx_all" ] && [ -s "$idx_all" ] && [ -r "$idx_all" ] || try_idx_all=
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case "$try_idx_bin$rep" in
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1/bin/* | 1/sbin/* | 1/usr/bin/* | 1/usr/sbin/* )
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# Binary index already checked for standard *bin/* entries.
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# No need to check complete index.
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try_idx_all=
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esac
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if [ -n "$try_idx_all" ]; then
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# Checking complete index is expensive.
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local Verbose=Info
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Info "$f: checking contents_index_all for $rep"
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# Complete package index is possibly gzipped.
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package="$(gzip -cdfq "$idx_all" |awk -v "f=$rep" '($1 == f) {print $2}' |sort -u)"
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local n="$(IFS=$'\n'; set -- $package; echo $#)"
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if [ "$n" = 1 ]; then
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Info "$f: $rep -> $package (via contents_index_all)"
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printf %s\\n "$package"
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return
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elif [ "$n" -gt 1 ]; then
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Info "$f: $rep indexed by:$(echo '' $package)"
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Info "$f: $rep -> $rep (raw, ambiguous, via contents_index_all)"
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printf %s\\n "$rep"
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return
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fi
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fi
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# Check package database.
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if package="$(rpmquery --whatprovides --queryformat='%{NAME}\n' -- "$rep")"; then
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package="$(printf %s "$package" |LC_COLLATE=C sort -u)"
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local n="$(IFS=$'\n'; set -- $package; echo $#)"
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if [ "$n" = 1 ]; then
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$Verbose "$f: $rep -> $package (via rpmdb)"
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printf %s\\n "$package"
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return
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elif [ "$n" -gt 1 ]; then
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Info "$f: $rep provided by:$(echo '' $package)"
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Info "$f: $rep -> $rep (raw, ambiguous, via rpmdb)"
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printf %s\\n "$rep"
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return
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fi
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fi
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# Not found; output raw dependence.
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Info "$f: $rep -> $rep (raw, not found)"
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printf %s\\n "$rep"
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}
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FindByName()
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{
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local f="$1" r="$2" rep package; shift 2 || return
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# Check buildroot first.
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if [ -n "${RPM_BUILD_ROOT-}" ]; then
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local RPATH
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RPATH="$(printf %s "$RPM_FINDPACKAGE_PATH" |sed -e "s|[^:]\+|$RPM_BUILD_ROOT&|g")"
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if rep="$(PATH="$RPATH" /usr/bin/which -- "$r" 2>/dev/null)"; then
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$Verbose "$f: $r -> \$RPM_BUILD_ROOT${rep#$RPM_BUILD_ROOT} (skip)"
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return
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fi
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fi
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# Check for pkg contents binary index.
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rep= package=
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if [ -n "${RPM_PKG_CONTENTS_INDEX_BIN-}" ] && [ -s "$RPM_PKG_CONTENTS_INDEX_BIN" ] && [ -r "$RPM_PKG_CONTENTS_INDEX_BIN" ]; then
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local out="$(awk -v r="$r" -v RPM_FINDPACKAGE_PATH="$RPM_FINDPACKAGE_PATH" '
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BEGIN {
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# Here we enumerate all possible paths to keep the order;
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# later we sort the result with "sort -n".
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n = split(RPM_FINDPACKAGE_PATH, ary, ":")
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for (i = 1; i <= n; i++) {
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dir = ary[i]
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sub("/+$", "", dir)
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file = dir "/" r
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if (dir && !(file in FILES))
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FILES[file] = i
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}
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# By now FILES is normally something like this:
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# /bin/r 1
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# /sbin/r 2
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# /usr/bin/r 3
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# /usr/sbin/r 4
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# ...
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}
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NF==2 && ($1 in FILES) {
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# Possible output is like this:
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# 3 /usr/bin/r pkgA
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# 1 /bin/r pkgB
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print FILES[$1] "\t" $1 "\t" $2
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}
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' "$RPM_PKG_CONTENTS_INDEX_BIN" |
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# Best paths go first:
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sort -n |
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# For each package, keep only the best path:
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sort -u -k3 |
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# Best paths still go first:
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sort -n |
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# Well done, discard numbers.
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cut -f2-)"
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local n="$(IFS=$'\n'; set -- $out; echo $#)"
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if [ "$n" = 1 ]; then
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rep="$(IFS=$'\t\n'; set -- $out; printf %s "$1")"
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package="$(IFS=$'\t\n'; set -- $out; printf %s "$2")"
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$Verbose "$r -> $rep -> $package (via contents_index_bin)"
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printf %s\\n "$package"
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return
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elif [ "$n" -gt 1 ]; then
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local Verbose=Info
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Info "$f: $r indexed by:$(printf %s "$out" |sed -e 's/\t/ -> /; s/$/,/; $s/,$//' |xargs echo '')"
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rep="$(IFS=$'\t\n'; set -- $out; printf %s "$1")"
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package="$(IFS=$'\t\n'; set -- $out; printf %s "$2")"
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local rep2="$(IFS=$'\t\n'; set -- $out; printf %s "$3")"
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if [ "$rep" = "$rep2" ]; then
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Info "$f: $r -> $rep -> $rep (raw, ambiguous, via contents_index_bin)"
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printf %s\\n "$rep"
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return
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fi
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fi
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fi
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# Lookup in the host system.
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local irep="$rep"
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if rep="$(PATH="$RPM_FINDPACKAGE_PATH" /usr/bin/which --all -- "$r" 2>/dev/null)"; then
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local n="$(IFS=$'\n'; set -- $rep; echo $#)"
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if [ "$n" -gt 1 ]; then
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n="$(IFS=$'\n'; for f in $rep; do readlink -vm "$f"; done |sort -u |wc -l)"
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if [ "$n" -gt 1 ]; then
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local Verbose=Info
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Info "$f: which $r:$(echo '' $rep)"
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fi
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rep="$(IFS=$'\n'; set -- $rep; printf %s "$1")"
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fi
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if [ -n "$rep" ]; then
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$Verbose "$f: $r -> $rep -> ... (via which)"
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FindByPath "$f" "$rep"
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return
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fi
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fi
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# Reconsult pkg contents binary index.
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if [ -n "$irep" ] && [ -n "$package" ]; then
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rep="$irep"
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$Verbose "$f: $r -> $rep -> $package (via contents_index_bin)"
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printf %s\\n "$package"
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return
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fi
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# Not found.
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Info "$f: $r not found (skip)"
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}
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FindPackage()
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{
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local f="$1" r; shift || return
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for r; do
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local Verbose=Verbose
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case "$r" in
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/*)
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FindByPath "$f" "$r" ;;
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*/*)
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Info "$f: invalid pathname $r" ;;
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-*)
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Info "$f: invalid command $r" ;;
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'')
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;;
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*)
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FindByName "$f" "$r" ;;
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esac
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done
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}
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