blob: b18e806d43175a8dca3047753722a99fbbdefa8d [file] [log] [blame]
Patrick Williamsc124f4f2015-09-15 14:41:29 -05001#!/bin/sh
2#
3# This script is called from inside postinstall scriptlets at do_rootfs time. It
4# actually adds, at the end, the list of packages for which the intercept script
5# is valid. Also, if one wants to pass any variables to the intercept script from
6# the postinstall itself, they will be added immediately after the shebang line.
7#
8# Usage: postinst_intercept <intercept_script_name> <package_name> <mlprefix=...> <var1=...> ... <varN=...>
9# * intercept_script_name - the name of the intercept script we want to change;
10# * package_name - add the package_name to list of packages the intercept script
11# is used for;
12# * mlprefix=... - this one is needed in order to have separate hooks for multilib.
13# * var1=... - var1 will have the value we provide in the intercept script. This
14# is useful when we want to pass on variables like ${libdir} to
15# the intercept script;
16#
17[ $# -lt 3 ] && exit 1
18
19intercept_script=$INTERCEPT_DIR/$1 && shift
20package_name=$1 && shift
21mlprefix=$(echo $1 |sed -ne "s/^mlprefix=\(.*\)-/\1/p") && shift
22
23# if the hook we want to install does not exist, then there's nothing we can do
24[ -f "$intercept_script" ] || exit 1
25
26# if the postinstall wanting to install the hook belongs to a multilib package,
27# then we'd better have a separate hook for this because the default ${libdir} and
28# ${base_libdir} will point to the wrong locations
29if [ -n "$mlprefix" ]; then
30 ml_intercept_script=$intercept_script-$mlprefix
31 # if the multilib hook does not exist, create it from the default one
32 if [ ! -f "$ml_intercept_script" ]; then
33 cp $intercept_script $ml_intercept_script
34
35 # clear the ##PKGS: line and the already set variables
36 [ -x "$ml_intercept_script" ] && sed -i -e "2,$(($#+1)) {/.*/d}" -e "/^##PKGS: .*/d" $ml_intercept_script
37 fi
38
39 intercept_script=$ml_intercept_script
40fi
41
42chmod +x "$intercept_script"
43
44pkgs_line=$(grep "##PKGS:" $intercept_script)
45if [ -n "$pkgs_line" ]; then
46 # line exists, add this package to the list only if it's not already there
47 if [ -z "$(echo "$pkgs_line" | grep " $package_name ")" ]; then
48 sed -i -e "s/##PKGS:.*/\0${package_name} /" $intercept_script
49 fi
50else
51 for var in "$@"; do
52 sed -i -e "\%^#\!/bin/.*sh%a $var" $intercept_script
53 done
54 echo "##PKGS: ${package_name} " >> $intercept_script
55fi
56