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Laurentiu Palcu 7306dbea6d Add separate directory for postinstall intercepts

The scripts/postinst-intercepts will contain all postinstall hooks that
we need to run after all packages have been installed.

If one wants to install such a postinst hook, all it needs to do is put
the hook in this directory and, from the package postinstall scriptlet,
call:
	postinst_intercept <hook_name> <package_name> <var1=...> ...

This will, practically, add the package_name in the list of packages
that need the hook to run and, also, set any variables that would be
needed in the hook. For example, variables like ${libdir}, ${bindir},
etc. that might depend on distribution can be passed on to the script in
this way.

(From OE-Core rev: 0ef538d75c2f3921a2fcbe6ca1deed5525b276cc)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2013-02-13 16:52:28 +00:00

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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> <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;

* 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 2 ] && exit 1

intercept_script=$INTERCEPT_DIR/$1 && shift package_name=$1 && shift

[ -f "$intercept_script" ] || exit 1

chmod +x "$intercept_script"

pkgs_line="$(cat $intercept_script|grep "##PKGS:")" if [ -n "$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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