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#!/usr/bin/perl -t
# Add a user to the system wide wikilist.
# This script can safely be made suid or put in /etc/sudoers.
no lib '.';
use warnings;
use strict;
use English;
my $remove=(@ARGV && $ARGV[0] eq '-r');
my $username=getpwuid($REAL_USER_ID);
if (! defined $username || ! length $username) {
die "unable to determine user name for UID $REAL_USER_ID\n";
}
my $wikilist="/etc/ikiwiki/wikilist";
if (! -e $wikilist) {
die "$wikilist does not exist\n";
}
my $changed=0;
my $seen=0;
my @lines;
open (my $list, "<$wikilist") || die "read $wikilist: $!";
while (<$list>) {
chomp;
if (/^\s*([^\s]+)\s*$/) {
my $user=$1;
if ($user eq $username) {
if (! $remove) {
$seen=1;
push @lines, $_;
}
else {
$changed=1;
}
}
else {
push @lines, $_;
}
}
else {
push @lines, $_;
}
}
if (! $seen && ! $remove) {
push @lines, $username;
$changed=1;
}
if ($changed) {
close $list || die "ikiwiki-update-wikilist: error reading $list: $!\n";
open ($list, ">$wikilist") || die "ikiwiki-update-wikilist: cannot write to $wikilist\n";
foreach (@lines) {
print $list "$_\n";
}
if ($remove) {
print "ikiwiki-update-wikilist: removed user $username from $wikilist\n";
}
else {
print "ikiwiki-update-wikilist: added user $username to $wikilist\n";
}
close $list || die "ikiwiki-update-wikilist: error writing $wikilist: $!\n";
}
else {
print "ikiwiki-update-wikilist: no changes need to be made\n";
}