1*4882a593Smuzhiyun#!/bin/sh 2*4882a593Smuzhiyun# 3*4882a593Smuzhiyun# SPDX-License-Identifier: MIT 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun# This script is called from inside postinstall scriptlets at do_rootfs time. It 6*4882a593Smuzhiyun# actually adds, at the end, the list of packages for which the intercept script 7*4882a593Smuzhiyun# is valid. Also, if one wants to pass any variables to the intercept script from 8*4882a593Smuzhiyun# the postinstall itself, they will be added immediately after the shebang line. 9*4882a593Smuzhiyun# 10*4882a593Smuzhiyun# Usage: postinst_intercept <intercept_script_name> <package_name> <mlprefix=...> <var1=...> ... <varN=...> 11*4882a593Smuzhiyun# * intercept_script_name - the name of the intercept script we want to change; 12*4882a593Smuzhiyun# * package_name - add the package_name to list of packages the intercept script 13*4882a593Smuzhiyun# is used for; 14*4882a593Smuzhiyun# * mlprefix=... - this one is needed in order to have separate hooks for multilib. 15*4882a593Smuzhiyun# * var1=... - var1 will have the value we provide in the intercept script. This 16*4882a593Smuzhiyun# is useful when we want to pass on variables like ${libdir} to 17*4882a593Smuzhiyun# the intercept script; 18*4882a593Smuzhiyun# 19*4882a593Smuzhiyun[ $# -lt 3 ] && exit 1 20*4882a593Smuzhiyun 21*4882a593Smuzhiyunintercept_script=$INTERCEPT_DIR/$1 && shift 22*4882a593Smuzhiyunpackage_name=$1 && shift 23*4882a593Smuzhiyunmlprefix=$(echo $1 |sed -ne "s/^mlprefix=\(.*\)-/\1/p") && shift 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun# if the hook we want to install does not exist, then there's nothing we can do 26*4882a593Smuzhiyun[ -f "$intercept_script" ] || exit 1 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun# if the postinstall wanting to install the hook belongs to a multilib package, 29*4882a593Smuzhiyun# then we'd better have a separate hook for this because the default ${libdir} and 30*4882a593Smuzhiyun# ${base_libdir} will point to the wrong locations 31*4882a593Smuzhiyunif [ -n "$mlprefix" ]; then 32*4882a593Smuzhiyun ml_intercept_script=$intercept_script-$mlprefix 33*4882a593Smuzhiyun # if the multilib hook does not exist, create it from the default one 34*4882a593Smuzhiyun if [ ! -f "$ml_intercept_script" ]; then 35*4882a593Smuzhiyun cp $intercept_script $ml_intercept_script 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun # clear the ##PKGS: line and the already set variables 38*4882a593Smuzhiyun [ -x "$ml_intercept_script" ] && sed -i -e "2,$(($#+1)) {/.*/d}" -e "/^##PKGS: .*/d" $ml_intercept_script 39*4882a593Smuzhiyun fi 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun intercept_script=$ml_intercept_script 42*4882a593Smuzhiyunfi 43*4882a593Smuzhiyun 44*4882a593Smuzhiyunchmod +x "$intercept_script" 45*4882a593Smuzhiyun 46*4882a593Smuzhiyunpkgs_line=$(grep "##PKGS:" $intercept_script) 47*4882a593Smuzhiyunif [ -n "$pkgs_line" ]; then 48*4882a593Smuzhiyun # line exists, add this package to the list only if it's not already there 49*4882a593Smuzhiyun if [ -z "$(echo "$pkgs_line" | grep " $package_name ")" ]; then 50*4882a593Smuzhiyun sed -i -e "s/##PKGS:.*/\0${package_name} /" $intercept_script 51*4882a593Smuzhiyun fi 52*4882a593Smuzhiyunelse 53*4882a593Smuzhiyun for var in "$@"; do 54*4882a593Smuzhiyun sed -i -e "\%^#\!/bin/.*sh%a $var" $intercept_script 55*4882a593Smuzhiyun done 56*4882a593Smuzhiyun echo "##PKGS: ${package_name} " >> $intercept_script 57*4882a593Smuzhiyunfi 58*4882a593Smuzhiyun 59