X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/66a7b49acb06e0e9b3d0b31d087202d3c81d85e9..c6bf4228d5c988e715ff08a9374b72ce054daa2c:/IkiWiki/Render.pm

diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index 09b646f75..599bb26e2 100644
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -58,6 +58,52 @@ sub backlinks ($) {
 	return @links;
 }
 
+sub find_changed_links (@_) {
+	my %linkchanged;
+	my %linkchangers;
+	foreach my $file (@_) {
+		my $page=pagename($file);
+	
+		if (exists $links{$page}) {
+			foreach my $l (@{$links{$page}}) {
+				my $link=bestlink($page, $l);
+				if (length $link) {
+					if (! exists $oldlinks{$page} ||
+					    ! grep { bestlink($page, $_) eq $link } @{$oldlinks{$page}}) {
+						$linkchanged{$link}=1;
+						$linkchangers{lc($page)}=1;
+					}
+				}
+				else {
+					if (! grep { lc $_ eq lc $l } @{$oldlinks{$page}}) {
+						$linkchangers{lc($page)}=1
+					}
+				}
+				
+			}
+		}
+		if (exists $oldlinks{$page}) {
+			foreach my $l (@{$oldlinks{$page}}) {
+				my $link=bestlink($page, $l);
+				if (length $link) {
+					if (! exists $links{$page} || 
+					    ! grep { bestlink($page, $_) eq $link } @{$links{$page}}) {
+						$linkchanged{$link}=1;
+						$linkchangers{lc($page)}=1;
+					}
+				}
+				else {
+					if (! grep { lc $_ eq lc $l } @{$links{$page}}) {
+						$linkchangers{lc($page)}=1
+					}
+				}
+			}
+		}
+	}
+
+	return \%linkchanged, \%linkchangers;
+}
+
 sub genpage ($$) {
 	my $page=shift;
 	my $content=shift;
@@ -342,7 +388,7 @@ sub refresh () {
 	run_hooks(refresh => sub { shift->() });
 	my ($files, $exists)=find_src_files();
 
-	my (%rendered, @add, @del, @internal);
+	my (%rendered, @add, @del, @internal, @internal_change);
 	# check for added or removed pages
 	foreach my $file (@$files) {
 		my $page=pagename($file);
@@ -407,7 +453,7 @@ sub refresh () {
 	    	    $forcerebuild{$page}) {
 			$pagemtime{$page}=$stat[9];
 			if (isinternal($page)) {
-				push @internal, $file;
+				push @internal_change, $file;
 				# Preprocess internal page in scan-only mode.
 				preprocess($page, $page, readfile($srcfile), 1);
 			}
@@ -429,7 +475,7 @@ sub refresh () {
 		render($file);
 		$rendered{$file}=1;
 	}
-	foreach my $file (@internal) {
+	foreach my $file (@internal, @internal_change) {
 		# internal pages are not rendered
 		my $page=pagename($file);
 		delete $depends{$page};
@@ -454,14 +500,19 @@ sub refresh () {
 		}
 	}
 
-	if (%rendered || @del || @internal) {
-		my @changed;
-		my $changes;
+	if (%rendered || @del || @internal || @internal_change) {
+		my @changed=(keys %rendered, @del);
+		my ($linkchanged, $linkchangers)=find_changed_links(@changed);
+
+		my $unsettled;
 		do {
-			$changes=0;
+			$unsettled=0;
 			@changed=(keys %rendered, @del);
-	 		my %lcchanged = map { lc(pagename($_)) => 1 } @changed;
-
+			my @exists_changed=(@add, @del);
+	
+			my %lc_changed = map { lc(pagename($_)) => 1 } @changed;
+			my %lc_exists_changed = map { lc(pagename($_)) => 1 } @exists_changed;
+	 
 			# rebuild dependant pages
 			foreach my $f (@$files) {
 				next if $rendered{$f};
@@ -470,7 +521,15 @@ sub refresh () {
 	
 				if (exists $depends_simple{$p}) {
 					foreach my $d (keys %{$depends_simple{$p}}) {
-						if (exists $lcchanged{$d}) {
+						if (($depends_simple{$p}{$d} & $IkiWiki::DEPEND_CONTENT &&
+						     $lc_changed{$d})
+						    ||
+						    ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_PRESENCE &&
+						     $lc_exists_changed{$d})
+					     	    ||
+						    ($depends_simple{$p}{$d} & $IkiWiki::DEPEND_LINKS &&
+						     $linkchangers->{$d})
+				     		) {
 							$reason = $d;
 							last;
 						}
@@ -485,10 +544,27 @@ sub refresh () {
 						# only consider internal files
 						# if the page explicitly depends
 						# on such files
-						foreach my $file (@changed, $d =~ /internal\(/ ? @internal : ()) {
+						my $internal_dep=$d =~ /internal\(/;
+
+						my @candidates;
+						if ($depends{$p}{$d} & $IkiWiki::DEPEND_PRESENCE) {
+							@candidates=@exists_changed;
+	 						push @candidates, @internal
+								if $internal_dep;
+						}
+						if (($depends{$p}{$d} & ($IkiWiki::DEPEND_CONTENT | $IkiWiki::DEPEND_LINKS))) {
+							@candidates=@changed;
+							push @candidates, @internal, @internal_change
+								if $internal_dep;
+						}
+
+						foreach my $file (@candidates) {
 							next if $file eq $f;
 							my $page=pagename($file);
 							if ($sub->($page, location => $p)) {
+								if ($depends{$p}{$d} & $IkiWiki::DEPEND_LINKS) {
+									next unless $linkchangers->{lc($page)};
+								}
 								$reason = $page;
 								last D;
 							}
@@ -500,39 +576,14 @@ sub refresh () {
 					debug(sprintf(gettext("building %s, which depends on %s"), $f, $reason));
 					render($f);
 					$rendered{$f}=1;
-					$changes++;
+					$unsettled=1;
 					last;
 				}
 			}
-		} while $changes;
+		} while $unsettled;
 		
-		# handle backlinks; if a page has added/removed links,
-		# update the pages it links to
-		my %linkchanged;
-		foreach my $file (@changed) {
-			my $page=pagename($file);
-			
-			if (exists $links{$page}) {
-				foreach my $link (map { bestlink($page, $_) } @{$links{$page}}) {
-					if (length $link &&
-					    (! exists $oldlinks{$page} ||
-					     ! grep { bestlink($page, $_) eq $link } @{$oldlinks{$page}})) {
-						$linkchanged{$link}=1;
-					}
-				}
-			}
-			if (exists $oldlinks{$page}) {
-				foreach my $link (map { bestlink($page, $_) } @{$oldlinks{$page}}) {
-					if (length $link &&
-					    (! exists $links{$page} || 
-					     ! grep { bestlink($page, $_) eq $link } @{$links{$page}})) {
-						$linkchanged{$link}=1;
-					}
-				}
-			}
-		}
-
-		foreach my $link (keys %linkchanged) {
+		# update backlinks at end
+		foreach my $link (keys %{$linkchanged}) {
 		    	my $linkfile=$pagesources{$link};
 			if (defined $linkfile) {
 				next if $rendered{$linkfile};