import Debian build rules, split off libgnunet

1 files changed, 99 insertions, 0 deletions

diff --git a/debian/gnunet.postrm b/debian/gnunet.postrm
new file mode 100644
index 000000000..0aba484db
--- /dev/null
+++ b/debian/gnunet.postrm
@@ -0,0 +1,99 @@
+#!/bin/sh
+
+set -e
+
+pathfind() {
+        OLDIFS="$IFS"
+        IFS=:
+        for p in $PATH; do
+                if [ -x "$p/$*" ]; then
+                        IFS="$OLDIFS"
+                        return 0
+                fi
+        done
+        IFS="$OLDIFS"
+        return 1
+}
+
+remove_gns() {
+        # abort if /etc/nsswitch.conf does not exist
+        if ! [ -e /etc/nsswitch.conf ]; then
+                return
+        fi
+        perl -i -pe '
+                my @remove=(
+                        "gns [NOTFOUND=return]",
+                );
+                sub remove {
+                        my $s=shift;
+                        foreach my $bit (@remove) {
+                                $s=~s/\s+\Q$bit\E//g;
+                        }
+                        return $s;
+                }
+                s/^(hosts:)(.*)/$1.remove($2)/e;
+        ' /etc/nsswitch.conf
+        # remove the gns nsswitch plugins as well
+        rm -rf /usr/lib/x86_64-linux-gnu/usr/libnss_gns.so.2
+        rm -rf /usr/lib/x86_64-linux-gnu/usr/libnss_gns4.so.2
+        rm -rf /usr/lib/x86_64-linux-gnu/usr/libnss_gns6.so.2
+}
+
+
+case "${1}" in
+        purge)
+                if [ -e /usr/share/debconf/confmodule ]
+                then
+                        . /usr/share/debconf/confmodule
+                        db_version 2.0
+
+                        db_get gnunet-systempeer/username
+                        _USERNAME="${RET:-gnunet}"
+
+                        db_get gnunet-systempeer/groupname
+                        _GROUPNAME="${RET:-gnunet}"
+
+                        db_get gnunet-dns/libnsswitch
+                        _LIBNSSWITCH="${RET}"
+                else
+                        _USERNAME="gnunet"
+                        _GROUPNAME="gnunet"
+                fi
+
+                GNUNETDNS_GROUP="gnunetdns"
+
+                if $_LIBNSSWITCH
+                then
+                        rm -rf /usr/lib/x86_64-linux-gnu/usr/libnss_gns.so.2
+                        rm -rf /usr/lib/x86_64-linux-gnu/usr/libnss_gns4.so.2
+                        rm -rf /usr/lib/x86_64-linux-gnu/usr/libnss_gns6.so.2
+                        remove_gns
+                fi
+
+                if pathfind deluser
+                then
+                        deluser --quiet --system ${_USERNAME} || true
+                fi
+
+                if pathfind delgroup
+                then
+                        delgroup --quiet --system --only-if-empty ${_GROUPNAME} || true
+                        delgroup --quiet --system --only-if-empty ${GNUNETDNS_GROUP} || true
+                fi
+
+                rm -rf /var/log/gnunetd /var/lib/gnunet /etc/default/gnunet
+                ;;
+
+        remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+
+                ;;
+
+        *)
+                echo "postrm called with unknown argument \`${1}'" >&2
+                exit 1
+                ;;
+esac
+
+#DEBHELPER#
+
+exit 0