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[ikiwiki.git] / ikiwiki-update-wikilist

diff --git a/ikiwiki-update-wikilist b/ikiwiki-update-wikilist
index 0f3f0bcc6497f2b6f6b73cf6821f01847bb6925c..a6425f011c6a7e04c281cdfe8f70094d302818e5 100755 (executable)
--- a/ikiwiki-update-wikilist
+++ b/ikiwiki-update-wikilist
@@ -5,6 +5,8 @@ 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";
@@ -15,7 +17,8 @@ if (! -e $wikilist) {
        die "$wikilist does not exist\n";
 }
 
-my $removed=0;
+my $changed=0;
+my $seen=0;
 my @lines;
 open (my $list, "<$wikilist") || die "read $wikilist: $!";
 while (<$list>) {
@@ -23,7 +26,10 @@ while (<$list>) {
        if (/^\s*([^\s]+)\s*$/) {
                my $user=$1;
                if ($user eq $username) {
-                       $removed=1;             
+                       if (! $remove) {
+                               $seen=1;
+                               push @lines, $_;
+                       }
                }
                else {
                        push @lines, $_;
@@ -33,16 +39,24 @@ while (<$list>) {
                push @lines, $_;
        }
 }
-close $list || die "error reading $list: $!";
-open ($list, ">$wikilist") || die "write $wikilist: $!";
-foreach (@lines) {
-       print $list "$_\n";
+if (! $seen && ! $remove) {
+       push @lines, $username;
+       $changed=1;
 }
-if ($removed) {
-       print "removed user $username from $wikilist\n";
+if ($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 $list "$username\n";
-       print "added user $username to $wikilist\n";
+       print "ikiwiki-update-wikilist: no changes need to be made\n";
 }
-close $list || die "error writing $list: $!";