rename: remove duplicates that hook functions may have added to @torename

[ikiwiki.git] / IkiWiki / Plugin / rename.pm

diff --git a/IkiWiki/Plugin/rename.pm b/IkiWiki/Plugin/rename.pm
index 37f643eefbdc7ce02122fcec10e1a14c814497b7..d3ca8bd3a4b585d67b6792207bc1a89f76ade3e0 100644 (file)
--- a/IkiWiki/Plugin/rename.pm
+++ b/IkiWiki/Plugin/rename.pm
@@ -10,7 +10,7 @@ sub import {
        hook(type => "formbuilder_setup", id => "rename", call => \&formbuilder_setup);
        hook(type => "formbuilder", id => "rename", call => \&formbuilder);
        hook(type => "sessioncgi", id => "rename", call => \&sessioncgi);
-
+       hook(type => "rename", id => "rename", call => \&rename);
 }
 
 sub getsetup () {
@@ -91,8 +91,9 @@ sub check_canrename ($$$$$$) {
        my $canrename;
        IkiWiki::run_hooks(canrename => sub {
                return if defined $canrename;
-               my $ret=shift->($q, $session, src => $src, srcfile => $srcfile,
-                               dest => $dest, destfile => $destfile);
+               my $ret=shift->(cgi => $q, session => $session,
+                       src => $src, srcfile => $srcfile,
+                       dest => $dest, destfile => $destfile);
                if (defined $ret) {
                        if ($ret eq "") {
                                $canrename=1;
@@ -215,7 +216,7 @@ sub postrename ($;$$$) {
                # Update edit form content to fix any links present
                # on it.
                $postrename->param("editcontent",
-                       renamelink_hook($dest, $src, $dest,
+                       renamepage_hook($dest, $src, $dest,
                                 $postrename->param("editcontent")));
 
                # Get a new edit token; old was likely invalidated.
@@ -311,29 +312,21 @@ sub sessioncgi ($$) {
                                required => 1,
                        };
 
-                       IkiWiki::run_hooks(rename => sub { shift->(\@torename, $q, $session); });
-
-                       # See if any subpages need to be renamed.
-                       if ($q->param("subpages") && $src ne $dest) {
-                               foreach my $p (keys %pagesources) {
-                                       next unless $pagesources{$p}=~m/^\Q$src\E\//;
-                                       # If indexpages is enabled, the
-                                       # srcfile should not be confused
-                                       # with a subpage.
-                                       next if $pagesources{$p} eq $srcfile;
-
-                                       my $d=$pagesources{$p};
-                                       $d=~s/^\Q$src\E\//$dest\//;
-                                       push @torename, {
-                                               src => $p,
-                                               srcfile => $pagesources{$p},
-                                               dest => pagename($d),
-                                               destfile => $d,
-                                               required => 0,
-                                       };
-                               }
+                       @torename=rename_hook(
+                               torename => \@torename,
+                               done => {},
+                               cgi => $q,
+                               session => $session,
+                       );
+
+                       # remove duplicates from @torename
+                       my %seen=();
+                       my @uniq_torename;
+                       foreach my $item (@torename) {
+                               push(@uniq_torename, $item) unless $seen{$item->{src}}++;
                        }
-                       
+                       @torename=@uniq_torename;
+
                        require IkiWiki::Render;
                        IkiWiki::disable_commit_hook() if $config{rcs};
                        my %origpagesources=%pagesources;
@@ -427,7 +420,40 @@ sub sessioncgi ($$) {
                exit 0;
        }
 }
-                                               
+
+# Add subpages to the list of pages to be renamed, if needed.
+sub rename(@) {
+       my %params = @_;
+
+       my %torename = %{$params{torename}};
+       my $q = $params{cgi};
+       my $src = $torename{src};
+       my $srcfile = $torename{src};
+       my $dest = $torename{dest};
+       my $destfile = $torename{dest};
+
+       return () unless ($q->param("subpages") && $src ne $dest);
+
+       my @ret;
+       foreach my $p (keys %pagesources) {
+               next unless $pagesources{$p}=~m/^\Q$src\E\//;
+               # If indexpages is enabled, the srcfile should not be confused
+               # with a subpage.
+               next if $pagesources{$p} eq $srcfile;
+
+               my $d=$pagesources{$p};
+               $d=~s/^\Q$src\E\//$dest\//;
+               push @ret, {
+                       src => $p,
+                       srcfile => $pagesources{$p},
+                       dest => pagename($d),
+                       destfile => $d,
+                       required => 0,
+               };
+       }
+       return @ret;
+}
+
 sub linklist {
        # generates a list of links in a form suitable for FormBuilder
        my $dest=shift;
@@ -445,10 +471,10 @@ sub linklist {
        } @{$list}]
 }
 
-sub renamelink_hook ($$$$) {
+sub renamepage_hook ($$$$) {
        my ($page, $src, $dest, $content)=@_;
 
-       IkiWiki::run_hooks(renamelink => sub {
+       IkiWiki::run_hooks(renamepage => sub {
                $content=shift->(
                        page => $page,
                        oldpage => $src,
@@ -459,6 +485,41 @@ sub renamelink_hook ($$$$) {
 
        return $content;
 }
+
+sub rename_hook (@) {
+       my %params = @_;
+
+       my @torename=@{$params{torename}};
+       my %done=%{$params{done}};
+       my $q=$params{cgi};
+       my $session=$params{session};
+
+       my @nextset;
+       if (@torename) {
+               foreach my $torename (@torename) {
+                       unless (exists $done{$torename->{src}} && $done{$torename->{src}}) {
+                               IkiWiki::run_hooks(rename => sub {
+                                       push @nextset, shift->(
+                                               torename => $torename,
+                                               cgi => $q,
+                                               session => $session,
+                                       );
+                               });
+                               $done{$torename->{src}}=1;
+                       }
+               }
+               push @torename, rename_hook(
+                       torename => \@nextset,
+                       done => \%done,
+                       cgi => $q,
+                       session => $session,
+               );
+               return @torename;
+       }
+       else {
+               return ();
+       }
+}
                        
 sub do_rename ($$$) {
        my $rename=shift;
@@ -479,7 +540,7 @@ sub do_rename ($$$) {
                IkiWiki::rcs_rename($rename->{srcfile}, $rename->{destfile});
        }
        else {
-               if (! rename($config{srcdir}."/".$rename->{srcfile},
+               if (! CORE::rename($config{srcdir}."/".$rename->{srcfile},
                             $config{srcdir}."/".$rename->{destfile})) {
                        error("rename: $!");
                }
@@ -505,7 +566,7 @@ sub fixlinks ($$$) {
                if ($needfix) {
                        my $file=$pagesources{$page};
                        my $oldcontent=readfile($config{srcdir}."/".$file);
-                       my $content=renamelink_hook($page, $rename->{src}, $rename->{dest}, $oldcontent);
+                       my $content=renamepage_hook($page, $rename->{src}, $rename->{dest}, $oldcontent);
                        if ($oldcontent ne $content) {
                                my $token=IkiWiki::rcs_prepedit($file);
                                eval { writefile($file, $config{srcdir}, $content) };