#!/bin/bash

# revdep-rebuild: Reverse dependency rebuilder.
# Author: Stanislav Brabec <utx@gentoo.org>

# Milis e uyarlanması
# Author: milisarge <milisarge@gmail.com>

# Mask of specially evaluated libraries (exactly one space separated).
LD_LIBRARY_MASK="libodbcinst.so libodbc.so libjava.so libjvm.so"

# List of directories to be searched (feel free to edit it)
# Note /usr/libexec and /usr/local/subprefix contradicts FHS, but are present
SEARCH_DIRS="/lib /bin /sbin /usr/lib /usr/bin /usr/sbin /usr/libexec /usr/local /usr/qt* /usr/kde/*/bin /usr/lib/MozillaFirefox /usr/kde/*/lib /usr/*-*-linux-gnu"
EXCLUDE_DIRS="/opt/ptsp /usr/lib/xorg/nvidia* /usr/lib/debug"

# Base of temporary files names.
LIST=~/.revdep-rebuild

VT="/var/lib/pkg/DB"

shopt -s nullglob
shopt -s expand_aliases
unalias -a

NO="\x1b[0;0m"
BR="\x1b[0;01m"
CY="\x1b[36;01m"
GR="\x1b[32;01m"
RD="\x1b[31;01m"
YL="\x1b[33;01m"
BL="\x1b[34;01m"

alias echo_v=echo

SONAME="not found"
SONAME_GREP=fgrep
SEARCH_BROKEN=true

while : ; do
        case "$1" in
        -h | --help )
                echo "Usage: $0 [OPTIONS] [--]"
                echo
                echo "Sistemdeki ters gereklerin kırık kontrolü."
                echo
                echo
				echo "      --force          remove old revdep-rebuild files"
                echo
                echo "      --soname SONAME  recompile packages using library with SONAME instead"
                echo "                       of broken library (SONAME providing library must be"
                echo "                       present in the system)"
                echo "      --soname-regexp SONAME"
                echo "                       the same as --soname, but accepts grep-style regexp"
                echo "  -q, --quiet          be less verbose"
                echo
                exit 0
                ;;
        -q | --quiet )
                alias echo_v=:
                shift
                ;;
        --soname=* )
                SONAME="${1#*=}"
                SEARCH_BROKEN=false
                shift
                ;;
        --soname )
                SONAME="$2"
                SEARCH_BROKEN=false
                shift 2
                ;;
        --soname-regexp=* )
                SONAME="${1#*=}"
                SONAME_GREP=grep
                SEARCH_BROKEN=false
                shift
                ;;
        --soname-regexp )
                SONAME="$2"
                SONAME_GREP=grep
                SEARCH_BROKEN=false
                shift 2
                ;;
        --force )
                FORCE=true
                shift
                ;;
        -- )
                shift
                break
                ;;
        * )
                break
                ;;
        esac
done

function set_trap () {
        trap "rm_temp $1" SIGHUP SIGINT SIGQUIT SIGABRT SIGTERM
}

function rm_temp () {
        echo " terminated."
        echo "Removing incomplete $1."
        rm $1
        echo
        exit 1
}

if $FORCE ; then
        rm -f /root/.revdep-rebuild*
fi

if $SEARCH_BROKEN ; then
        SONAME_SEARCH="$SONAME"
        LLIST=$LIST
        HEAD_TEXT="broken by any package update"
        OK_TEXT="Dynamic linking on your system is consistent"
        WORKING_TEXT=" tutarlılık modu"
else
        SONAME_SEARCH=" $SONAME "
        LLIST=${LIST}_$(echo "$SONAME_SEARCH$SONAME" | md5sum | head -c 8)
        HEAD_TEXT="using given shared object name"
        OK_TEXT="There are no dynamic links to $SONAME"
        WORKING_TEXT=""
fi

echo
echo "Ters bağımlılıklar kontrol ediliyor..."

echo
echo -n -e "${GR}Sistemdeki ikili ve kütüphane dosyaları toplanıyor...${NO}"
if [ -f $LIST.1_files ] ; then
        echo "var olan $LIST.1_files dosyası kullanılacak"
else
        set_trap "$LIST.1_files"
    EXCLUDED_DIRS=
    for d in $EXCLUDE_DIRS; do
        EXCLUDED_DIRS+="-path $d -prune -o "
    done
        find $SEARCH_DIRS $EXCLUDED_DIRS -type f \( -perm /+u+x -o -name '*.so' -o -name '*.so.*' \) 2>/dev/null >$LIST.1_files
        echo -e " tamamlandı.\n  ($LIST.1_files)"
fi

if $SEARCH_BROKEN ; then
        echo
        echo -n -e "${GR}Toplama tamamlandı LD_LIBRARY_PATH...${NO}"
        if [ -f $LIST.2_ldpath ] ; then
        echo " var olan $LIST.2_ldpath dosyası kullanılacak."
        else
        set_trap "$LIST.2_ldpath"
        (
                grep '.*\.so\(\|\..*\)$' <$LIST.1_files | sed 's:/[^/]*$::'
                sed '/^#/d;s/#.*$//' </etc/ld.so.conf
        ) | sort -u |
        tr '\n' : | tr -d '\r' | sed 's/:$//' >$LIST.2_ldpath
        echo -e " tamamlandı.\n  ($LIST.2_ldpath)"
        fi
        export COMPLETE_LD_LIBRARY_PATH="$(cat $LIST.2_ldpath)"
fi

echo
echo -n -e "${GR}Dinamik bağlamlar kontrol ediliyor$WORKING_TEXT...${NO}"
if [ -f $LLIST.3_rebuild ] ; then
        echo " var olan $LLIST.3_rebuild dosyası kullanılıyor"
else
        echo_v
        set_trap "$LLIST.3_rebuild"
        LD_MASK="\\(    $(echo "$LD_LIBRARY_MASK" | sed 's/\./\\./g;s/ / \\|    /g') \\)"
        echo -n >$LLIST.3_rebuild
        cat $LIST.1_files | while read FILE ; do
        # Note: double checking seems to be faster than single
        # with complete path (special add ons are rare).
        if ldd "$FILE" 2>/dev/null | grep -v "$LD_MASK" |
                $SONAME_GREP -q "$SONAME_SEARCH" ; then
                if $SEARCH_BROKEN ; then
                if LD_LIBRARY_PATH="$COMPLETE_LD_LIBRARY_PATH" \
                ldd "$FILE" 2>/dev/null | grep -v "$LD_MASK" |
                        $SONAME_GREP -q "$SONAME_SEARCH" ; then
                        echo "$FILE" >>$LLIST.3_rebuild
                        echo_v "  kırık $FILE (gerekli $(ldd "$FILE" | sed -n 's/     \(.*\) => not found$/\1/p' | tr '\n' ' ' | sed 's/ $//' ))"
                fi
                else
                echo "$FILE" >>$LLIST.3_rebuild
                echo_v " $FILE bulundu"
                fi
        fi
        done
        echo -e " tamamlandı.\n  ($LLIST.3_rebuild)"
fi

echo
echo -n -e "${GR}Paket isimleri tespit ediliyor$WORKING_TEXT...${NO}"
if [ -f $LLIST.4_names ] ; then
        echo " var olan $LLIST.4_names dosyası kullanılacak"
else
    echo_v
    set_trap "$LLIST.4_names"
    for i in `cat $LLIST.3_rebuild`
    do
        basename $(dirname $(grep -rli "$i" $VT)) >> $LLIST.tmp
    done
    cat $LLIST.tmp | sort -d | uniq > $LLIST.4_names
    rm -f $LLIST.tmp
    echo -e " tamamlandı.\n  ($LIST.4_names)"
fi

echo "Yeniden derlenmesi gerekenler"
echo "-----------------------------"
cat $LLIST.4_names