Added link to code plugin

[ikiwiki.git] / IkiWiki / Render.pm

diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index a90d202eef0c10fd480b00459c1238f58052b094..fa2940b01ce23e5f988f9c9176c4a775c2171e53 100644 (file)
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -287,9 +287,22 @@ sub srcdir_check () {
        
 }
 
-sub find_src_files () {
+# Finds all files in the srcdir, and the underlaydirs.
+# Returns the files, and their corresponding pages.
+#
+# When run in only_underlay mode, adds only the underlay files to
+# the files and pages passed in.
+sub find_src_files (;$$$) {
+       my $only_underlay=shift;
        my @files;
+       if (defined $_[0]) {
+               @files=@{shift()};
+       }
        my %pages;
+       if (defined $_[0]) {
+               %pages=%{shift()};
+       }
+
        eval q{use File::Find};
        error($@) if $@;
 
@@ -297,6 +310,8 @@ sub find_src_files () {
        die $@ if $@;
        my $origdir=getcwd();
        my $abssrcdir=Cwd::abs_path($config{srcdir});
+       
+       @IkiWiki::underlayfiles=();
 
        my ($page, $underlay);
        my $helper=sub {
@@ -323,6 +338,7 @@ sub find_src_files () {
                        if (! -l "$abssrcdir/$f" && ! -e _) {
                                if (! $pages{$page}) {
                                        push @files, $f;
+                                       push @IkiWiki::underlayfiles, $f;
                                        $pages{$page}=1;
                                }
                        }
@@ -336,12 +352,14 @@ sub find_src_files () {
                }
        };
 
-       chdir($config{srcdir}) || die "chdir $config{srcdir}: $!";
-       find({
-               no_chdir => 1,
-               wanted => $helper,
-       }, '.');
-       chdir($origdir) || die "chdir $origdir: $!";
+       unless ($only_underlay) {
+               chdir($config{srcdir}) || die "chdir $config{srcdir}: $!";
+               find({
+                       no_chdir => 1,
+                       wanted => $helper,
+               }, '.');
+               chdir($origdir) || die "chdir $origdir: $!";
+       }
 
        $underlay=1;
        foreach (@{$config{underlaydirs}}, $config{underlaydir}) {
@@ -357,6 +375,50 @@ sub find_src_files () {
        return \@files, \%pages;
 }
 
+# Given a hash of files that have changed, and a hash of files that were
+# deleted, should return the same results as find_src_files, with the same
+# sanity checks. But a lot faster!
+sub process_changed_files ($$) {
+       my $changed_raw=shift;
+       my $deleted_raw=shift;
+
+       my @files;
+       my %pages;
+
+       foreach my $file (keys %$changed_raw) {
+               my $page = pagename($file);
+               next if ! exists $pagesources{$page} && file_pruned($file);
+               my ($f) = $file =~ /$config{wiki_file_regexp}/; # untaint
+               if (! defined $f) {
+                       warn(sprintf(gettext("skipping bad filename %s"), $file)."\n");
+                       next;
+               }
+               push @files, $f;
+               if ($pages{$page}) {
+                       debug(sprintf(gettext("%s has multiple possible source pages"), $page));
+               }
+               $pages{$page}=1;
+       }
+
+       # So far, we only have the changed files. Now add in all the old
+       # files that were not changed or deleted, excluding ones that came
+       # from the underlay.
+       my %old_underlay;
+       foreach my $f (@IkiWiki::underlayfiles) {
+               $old_underlay{$f}=1;
+       }
+       foreach my $page (keys %pagesources) {
+               my $f=$pagesources{$page};
+               unless ($old_underlay{$f} || exists $pages{$page} || exists $deleted_raw->{$f}) {
+                       $pages{$page}=1;
+                       push @files, $f;
+               }
+       }
+
+       # add in the underlay
+       find_src_files(1, \@files, \%pages);
+}
+
 sub find_new_files ($) {
        my $files=shift;
        my @new;
@@ -762,17 +824,40 @@ sub gen_autofile ($$$) {
        return 1;
 }
 
-
 sub refresh () {
        srcdir_check();
        run_hooks(refresh => sub { shift->() });
-       my ($files, $pages)=find_src_files();
-       my ($new, $internal_new)=find_new_files($files);
-       my ($del, $internal_del)=find_del_files($pages);
-       my ($changed, $internal_changed)=find_changed($files);
+       my ($files, $pages, $new, $internal_new, $del, $internal_del, $changed, $internal_changed);
+       my $want_find_changes=$config{only_committed_changes} &&
+               exists $IkiWiki::hooks{rcs}{rcs_find_changes} &&
+               exists $IkiWiki::hooks{rcs}{rcs_get_current_rev};
+       if (! $config{rebuild} && $want_find_changes && defined $IkiWiki::lastrev && length $IkiWiki::lastrev) {
+               my ($changed_raw, $del_raw);
+               ($changed_raw, $del_raw, $IkiWiki::lastrev) = $IkiWiki::hooks{rcs}{rcs_find_changes}{call}->($IkiWiki::lastrev);
+               ($files, $pages)=process_changed_files($changed_raw, $del_raw);
+       }
+       else {
+               ($files, $pages)=find_src_files();
+       }
+       if ($want_find_changes) {
+               if (! defined($IkiWiki::lastrev) || ! length $IkiWiki::lastrev) {
+                       $IkiWiki::lastrev=$IkiWiki::hooks{rcs}{rcs_get_current_rev}{call}->();
+               }
+       }
+       ($new, $internal_new)=find_new_files($files);
+       ($del, $internal_del)=find_del_files($pages);
+       ($changed, $internal_changed)=find_changed($files);
+       my %existingfiles;
        run_hooks(needsbuild => sub {
                my $ret=shift->($changed, [@$del, @$internal_del]);
-               $changed=$ret if ref $ret eq 'ARRAY';
+               if (ref $ret eq 'ARRAY' && $ret != $changed) {
+                       if (! %existingfiles) {
+                               foreach my $f (@$files) {
+                                       $existingfiles{$f}=1;
+                               }
+                       }
+                       @$changed=grep $existingfiles{$_}, @$ret;
+               }
        });
        my $oldlink_targets=calculate_old_links($changed, $del);