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Martin Jansa e570b32020 postinst_intercept: allow to pass variables with spaces

* trying to pass foo="a b" through postinst_intercept ends
  with the actual script header to containing:
  b
  foo=a
  which fails because "b" command doesn't exist.

(From OE-Core rev: c66d7d85b7225be8c838449324d506565dd0081d)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2015-09-09 14:27:39 +01:00

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#!/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

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

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