diff options
Diffstat (limited to 'scripts/postinst-intercepts/postinst_intercept')
| -rwxr-xr-x | scripts/postinst-intercepts/postinst_intercept | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/scripts/postinst-intercepts/postinst_intercept b/scripts/postinst-intercepts/postinst_intercept new file mode 100755 index 0000000000..ed32f27802 --- /dev/null +++ b/scripts/postinst-intercepts/postinst_intercept @@ -0,0 +1,37 @@ +#!/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 + |