diff options
Diffstat (limited to 'debian/initramfs-tools.preinst')
| -rwxr-xr-x | debian/initramfs-tools.preinst | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/debian/initramfs-tools.preinst b/debian/initramfs-tools.preinst new file mode 100755 index 0000000..3084c4a --- /dev/null +++ b/debian/initramfs-tools.preinst @@ -0,0 +1,42 @@ +#!/bin/sh + +set -e + +mvverbose=-v + +# from dpkg-maintscript-helper, modified +ensure_package_owns_file() { + local PACKAGE="$1" + local FILE="$2" + + dpkg-query -L "$PACKAGE" | grep -F -q -x "$FILE" +} + +# from dpkg-maintscript-helper +prepare_rm_conffile() { + local CONFFILE="$1" + local PACKAGE="$2" + + [ -e "$CONFFILE" ] || return 0 + ensure_package_owns_file "$PACKAGE" "$CONFFILE" || return 0 + + local md5sum old_md5sum + md5sum="$(md5sum "$CONFFILE" | sed -e 's/ .*//')" + old_md5sum="$(dpkg-query -W -f='${Conffiles}' "$PACKAGE" | \ + sed -n -e "\\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")" + if [ "$md5sum" != "$old_md5sum" ]; then + mv $mvverbose -f "$CONFFILE" "$CONFFILE.dpkg-backup" + else + mv $mvverbose -f "$CONFFILE" "$CONFFILE.dpkg-remove" + fi +} + +# When upgrading from <0.123, we need to move initramfs.conf away so +# dpkg will stop remembering it as an 'obsolete' conffile for us. The +# postinst of either initramfs-tools or initramfs-tools-core will move +# it back. +if [ "$1" = upgrade ] && dpkg --compare-versions "$2" lt 0.123~; then + prepare_rm_conffile /etc/initramfs-tools/initramfs.conf initramfs-tools +fi + +#DEBHELPER# |