#!/bin/sh # # This script is called from inside postinstall scriptlets at do_rootfs time. It # actually adds, at the end, the list of packages for which the intercept script # is valid. Also, if one wants to pass any variables to the intercept script from # the postinstall itself, they will be added immediately after the shebang line. # # Usage: postinst_intercept <intercept_script_name> <package_name> <mlprefix=...> <var1=...> ... <varN=...> # * intercept_script_name - the name of the intercept script we want to change; # * package_name - add the package_name to list of packages the intercept script # is used for; # * mlprefix=... - this one is needed in order to have separate hooks for multilib. # * var1=... - var1 will have the value we provide in the intercept script. This # is useful when we want to pass on variables like ${libdir} to # the intercept script; # [ $# -lt 3 ] && exit 1 intercept_script=$INTERCEPT_DIR/$1 && shift package_name=$1 && shift mlprefix=$(echo $1 |sed -ne "s/^mlprefix=\(.*\)-/\1/p") && shift # if the hook we want to install does not exist, then there's nothing we can do [ -f "$intercept_script" ] || exit 1 # if the postinstall wanting to install the hook belongs to a multilib package, # then we'd better have a separate hook for this because the default ${libdir} and # ${base_libdir} will point to the wrong locations if [ -n "$mlprefix" ]; then ml_intercept_script=$intercept_script-$mlprefix # if the multilib hook does not exist, create it from the default one if [ ! -f "$ml_intercept_script" ]; then cp $intercept_script $ml_intercept_script # clear the ##PKGS: line and the already set variables [ -x "$ml_intercept_script" ] && sed -i -e "2,$(($#+1)) {/.*/d}" -e "/^##PKGS: .*/d" $ml_intercept_script fi intercept_script=$ml_intercept_script fi chmod +x "$intercept_script" pkgs_line=$(grep "##PKGS:" $intercept_script) if [ -n "$pkgs_line" ]; then # line exists, add this package to the list only if it's not already there if [ -z "$(echo "$pkgs_line" | grep " $package_name ")" ]; then sed -i -e "s/##PKGS:.*/\0${package_name} /" $intercept_script fi else for var in "$@"; do sed -i -e "\%^#\!/bin/.*sh%a $var" $intercept_script done echo "##PKGS: ${package_name} " >> $intercept_script fi