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