diff --git a/scripts/revdep-rebuild b/scripts/revdep-rebuild new file mode 100755 index 00000000..908d4661 --- /dev/null +++ b/scripts/revdep-rebuild @@ -0,0 +1,182 @@ +#! /bin/bash + +# revdep-rebuild: Reverse dependency rebuilder. +# Author: Stanislav Brabec + +# 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 cotradicts FHS, but are present +# /var/something is for cgi and similar scripts +SEARCH_DIRS="/lib /bin /sbin /usr/lib /usr/bin /usr/sbin /usr/libexec /usr/X11R6/lib /usr/X11R6/bin /usr/X11R6/sbin /usr/e1* /usr/local /usr/qt* /usr/kde/*/lib /usr/*-*-linux-gnu /opt /var/qmail /var/vpopmail /home/httpd/cgi-bin" + +# Base of temporary files names. +LIST=~/.revdep-rebuild + +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 + +PACKAGE_NAMES=false +SONAME="not found" +SONAME_GREP=fgrep +SEARCH_BROKEN=true + +while : ; do + case "$1" in + -h | --help ) + echo "Usage: $0 [OPTIONS] [--] [EMERGE_OPTIONS]" + echo + echo "Broken reverse dependency rebuilder." + echo + echo " -X, --package-names recompile based on package names, not exact versions" + echo " --soname SONAME recompile packages using library with SONAME instead" + echo " of broken library (SONAME providing library must be" + echo " present in the system)" + echo " --soname-regexp SONAME" + echo " the same as --soname, but accepts grep-style regexp" + echo " -q, --quiet be less verbose" + echo + echo "Calls emerge, all other options are used for it (e. g. -p, --pretend)." + echo + echo "Report bugs to " + exit 0 + ;; + -X | --package-names ) + PACKAGE_NAMES=true + shift + ;; + -q | --quiet ) + alias echo_v=: + shift + ;; + --soname=* ) + SONAME="${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 + ;; + -- ) + 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 $SEARCH_BROKEN ; then + SONAME_SEARCH="$SONAME" + LLIST=$LIST + HEAD_TEXT="broken by any package update" + OK_TEXT="Dynamic linking on your system is consistent" + WORKING_TEXT=" consistency" +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 "Checking reverse dependencies..." +echo "Packages containing binaries and libraries $HEAD_TEXT," +echo "will be recompiled." + +echo +echo -n -e "${GR}Collecting system binaries and libraries...${NO}" +if [ -f $LIST.1_files ] ; then + echo " using existing $LIST.1_files." +else + set_trap "$LIST.1_files" + find $SEARCH_DIRS -type f \( -perm +u+x -o -name '*.so' -o -name '*.so.*' \) 2>/dev/null >$LIST.1_files + echo -e " done.\n ($LIST.1_files)" +fi + +if $SEARCH_BROKEN ; then + echo + echo -n -e "${GR}Collecting complete LD_LIBRARY_PATH...${NO}" + if [ -f $LIST.2_ldpath ] ; then + echo " using existing $LIST.2_ldpath." + else + set_trap "$LIST.2_ldpath" + ( + grep '.*\.so\(\|\..*\)$' <$LIST.1_files | sed 's:/[^/]*$::' + sed '/^#/d;s/#.*$//' $LIST.2_ldpath + echo -e " done.\n ($LIST.2_ldpath)" + fi + export COMPLETE_LD_LIBRARY_PATH="$(cat $LIST.2_ldpath)" +fi + +echo +echo -n -e "${GR}Checking dynamic linking$WORKING_TEXT...${NO}" +if [ -f $LLIST.3_rebuild ] ; then + echo " using existing $LLIST.3_rebuild." +else + echo_v + set_trap "$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 " broken $FILE (requires $(ldd "$FILE" | sed -n 's/ \(.*\) => not found$/\1/p' | tr '\n' ' ' | sed 's/ $//' ))" + fi + else + echo "$FILE" >>$LLIST.3_rebuild + echo_v " found $FILE" + fi + fi + done + echo -e " done.\n ($LLIST.3_rebuild)" +fi