X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/f1fcb5be9ca9e473a7a0c723871cad2c8e1493ec..25bf32431fd59afcc808eb74d5cefc96efab1182:/IkiWiki/Render.pm

diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index 2682e13ae..246c2260d 100644
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -8,29 +8,40 @@ use IkiWiki;
 use Encode;
 
 my %backlinks;
-my $backlinks_calculated=0;
+our %brokenlinks;
+my $links_calculated=0;
 
-sub calculate_backlinks () { #{{{
-	return if $backlinks_calculated;
-	%backlinks=();
+sub calculate_links () {
+	return if $links_calculated;
+	%backlinks=%brokenlinks=();
 	foreach my $page (keys %links) {
 		foreach my $link (@{$links{$page}}) {
 			my $bestlink=bestlink($page, $link);
-			if (length $bestlink && $bestlink ne $page) {
-				$backlinks{$bestlink}{$page}=1;
+			if (length $bestlink) {
+				$backlinks{$bestlink}{$page}=1
+					if $bestlink ne $page;
+			}
+			else {
+				push @{$brokenlinks{$link}}, $page;
 			}
 		}
 	}
-	$backlinks_calculated=1;
-} #}}}
+	$links_calculated=1;
+}
 
-sub backlinks ($) { #{{{
+sub backlink_pages ($) {
 	my $page=shift;
 
-	calculate_backlinks();
+	calculate_links();
+
+	return keys %{$backlinks{$page}};
+}
+
+sub backlinks ($) {
+	my $page=shift;
 
 	my @links;
-	foreach my $p (keys %{$backlinks{$page}}) {
+	foreach my $p (backlink_pages($page)) {
 		my $href=urlto($p, $page);
                 
 		# Trim common dir prefixes from both pages.
@@ -45,26 +56,9 @@ sub backlinks ($) { #{{{
 		push @links, { url => $href, page => pagetitle($p_trimmed) };
 	}
 	return @links;
-} #}}}
-
-sub parentlinks ($) { #{{{
-	my $page=shift;
-	
-	my @ret;
-	my $pagelink="";
-	my $path="";
-	my $title=$config{wikiname};
-	
-	foreach my $dir (split("/", $page)) {
-		next if $dir eq 'index';
-		push @ret, { url => urlto($path, $page), page => $title };
-		$path.="/".$dir;
-		$title=pagetitle($dir);
-	}
-	return @ret;
-} #}}}
+}
 
-sub genpage ($$) { #{{{
+sub genpage ($$) {
 	my $page=shift;
 	my $content=shift;
 
@@ -80,23 +74,24 @@ sub genpage ($$) { #{{{
 	my $actions=0;
 
 	if (length $config{cgiurl}) {
-		$template->param(editurl => cgiurl(do => "edit", page => pagetitle($page, 1)));
-		$template->param(prefsurl => cgiurl(do => "prefs"));
+		$template->param(editurl => cgiurl(do => "edit", page => $page))
+			if IkiWiki->can("cgi_editpage");
+		$template->param(prefsurl => cgiurl(do => "prefs"))
+			if exists $hooks{auth};
 		$actions++;
 	}
 		
-	if (length $config{historyurl}) {
+	if (defined $config{historyurl} && length $config{historyurl}) {
 		my $u=$config{historyurl};
 		$u=~s/\[\[file\]\]/$pagesources{$page}/g;
 		$template->param(historyurl => $u);
 		$actions++;
 	}
 	if ($config{discussion}) {
-		my $discussionlink=gettext("discussion");
-		if ($page !~ /.*\/\Q$discussionlink\E$/ &&
+		if ($page !~ /.*\/\Q$config{discussionpage}\E$/ &&
 		   (length $config{cgiurl} ||
-		    exists $links{$page."/".$discussionlink})) {
-			$template->param(discussionlink => htmllink($page, $page, gettext("Discussion"), noimageinline => 1, forcesubpage => 1));
+		    exists $links{$page."/".$config{discussionpage}})) {
+			$template->param(discussionlink => htmllink($page, $page, $config{discussionpage}, noimageinline => 1, forcesubpage => 1));
 			$actions++;
 		}
 	}
@@ -121,7 +116,6 @@ sub genpage ($$) { #{{{
 			? $config{wikiname} 
 			: pagetitle(basename($page)),
 		wikiname => $config{wikiname},
-		parentlinks => [parentlinks($page)],
 		content => $content,
 		backlinks => $backlinks,
 		more_backlinks => $more_backlinks,
@@ -135,6 +129,10 @@ sub genpage ($$) { #{{{
 	});
 	
 	$content=$template->output;
+	
+	run_hooks(postscan => sub {
+		shift->(page => $page, content => $content);
+	});
 
 	run_hooks(format => sub {
 		$content=shift->(
@@ -144,15 +142,9 @@ sub genpage ($$) { #{{{
 	});
 
 	return $content;
-} #}}}
-
-sub mtime ($) { #{{{
-	my $file=shift;
-	
-	return (stat($file))[9];
-} #}}}
+}
 
-sub scan ($) { #{{{
+sub scan ($) {
 	my $file=shift;
 
 	my $type=pagetype($file);
@@ -162,30 +154,55 @@ sub scan ($) { #{{{
 		my $page=pagename($file);
 		will_render($page, htmlpage($page), 1);
 
-		# Always needs to be done, since filters might add links
-		# to the content.
-		$content=filter($page, $page, $content);
-
-		my @links;
-		while ($content =~ /(?<!\\)$config{wiki_link_regexp}/g) {
-			push @links, linkpage($2);
-		}
 		if ($config{discussion}) {
 			# Discussion links are a special case since they're
 			# not in the text of the page, but on its template.
-			push @links, $page."/".gettext("discussion");
+			$links{$page}=[ $page."/".lc($config{discussionpage}) ];
 		}
-		$links{$page}=\@links;
-		
+		else {
+			$links{$page}=[];
+		}
+
+		run_hooks(scan => sub {
+			shift->(
+				page => $page,
+				content => $content,
+			);
+		});
+
 		# Preprocess in scan-only mode.
 		preprocess($page, $page, $content, 1);
 	}
 	else {
 		will_render($file, $file, 1);
 	}
-} #}}}
+}
+
+sub fast_file_copy (@) {
+	my $srcfile=shift;
+	my $destfile=shift;
+	my $srcfd=shift;
+	my $destfd=shift;
+	my $cleanup=shift;
+
+	my $blksize = 16384;
+	my ($len, $buf, $written);
+	while ($len = sysread $srcfd, $buf, $blksize) {
+		if (! defined $len) {
+			next if $! =~ /^Interrupted/;
+			error("failed to read $srcfile: $!", $cleanup);
+		}
+		my $offset = 0;
+		while ($len) {
+			defined($written = syswrite $destfd, $buf, $len, $offset)
+				or error("failed to write $destfile: $!", $cleanup);
+			$len -= $written;
+			$offset += $written;
+		}
+	}
+}
 
-sub render ($) { #{{{
+sub render ($) {
 	my $file=shift;
 	
 	my $type=pagetype($file);
@@ -193,10 +210,11 @@ sub render ($) { #{{{
 	if (defined $type) {
 		my $page=pagename($file);
 		delete $depends{$page};
+		delete $depends_simple{$page};
 		will_render($page, htmlpage($page), 1);
 		return if $type=~/^_/;
 		
-		my $content=htmlize($page, $type,
+		my $content=htmlize($page, $page, $type,
 			linkify($page, $page,
 			preprocess($page, $page,
 			filter($page, $page,
@@ -206,33 +224,31 @@ sub render ($) { #{{{
 		writefile($output, $config{destdir}, genpage($page, $content));
 	}
 	else {
-		my $srcfd=readfile($srcfile, 1, 1);
 		delete $depends{$file};
+		delete $depends_simple{$file};
 		will_render($file, $file, 1);
-		writefile($file, $config{destdir}, undef, 1, sub {
-			my $destfd=shift;
-			my $cleanup=shift;
-
-			my $blksize = 16384;
-			my ($len, $buf, $written);
-			while ($len = sysread $srcfd, $buf, $blksize) {
-				if (! defined $len) {
-					next if $! =~ /^Interrupted/;
-					error("failed to read $srcfile: $!", $cleanup);
-				}
-				my $offset = 0;
-				while ($len) {
-					defined($written = syswrite $destfd, $buf, $len, $offset)
-						or error("failed to write $file: $!", $cleanup);
-					$len -= $written;
-					$offset += $written;
+		
+		if ($config{hardlink}) {
+			# only hardlink if owned by same user
+			my @stat=stat($srcfile);
+			if ($stat[4] == $>) {
+				prep_writefile($file, $config{destdir});
+				unlink($config{destdir}."/".$file);
+				if (link($srcfile, $config{destdir}."/".$file)) {
+					return;
 				}
 			}
+			# if hardlink fails, fall back to copying
+		}
+		
+		my $srcfd=readfile($srcfile, 1, 1);
+		writefile($file, $config{destdir}, undef, 1, sub {
+			fast_file_copy($srcfile, $file, $srcfd, @_);
 		});
 	}
-} #}}}
+}
 
-sub prune ($) { #{{{
+sub prune ($) {
 	my $file=shift;
 
 	unlink($file);
@@ -240,25 +256,24 @@ sub prune ($) { #{{{
 	while (rmdir($dir)) {
 		$dir=dirname($dir);
 	}
-} #}}}
+}
 
-sub refresh () { #{{{
-	# security check, avoid following symlinks in the srcdir path
+sub srcdir_check () {
+	# security check, avoid following symlinks in the srcdir path by default
 	my $test=$config{srcdir};
 	while (length $test) {
-		if (-l $test) {
-			error("symlink found in srcdir path ($test)");
+		if (-l $test && ! $config{allow_symlinks_before_srcdir}) {
+			error(sprintf(gettext("symlink found in srcdir path (%s) -- set allow_symlinks_before_srcdir to allow this"), $test));
 		}
 		unless ($test=~s/\/+$//) {
 			$test=dirname($test);
 		}
 	}
 	
-	run_hooks(refresh => sub { shift->() });
+}
 
-	# find existing pages
-	my %exists;
-	my @files;
+sub find_src_files () {
+	my (@files, %pages);
 	eval q{use File::Find};
 	error($@) if $@;
 	find({
@@ -268,7 +283,7 @@ sub refresh () { #{{{
 			if (file_pruned($_, $config{srcdir})) {
 				$File::Find::prune=1;
 			}
-			elsif (! -d $_ && ! -l $_) {
+			elsif (! -l $_ && ! -d _) {
 				my ($f)=/$config{wiki_file_regexp}/; # untaint
 				if (! defined $f) {
 					warn(sprintf(gettext("skipping bad filename %s"), $_)."\n");
@@ -276,7 +291,11 @@ sub refresh () { #{{{
 				else {
 					$f=~s/^\Q$config{srcdir}\E\/?//;
 					push @files, $f;
-					$exists{pagename($f)}=1;
+					my $pagename = pagename($f);
+					if ($pages{$pagename}) {
+						debug(sprintf(gettext("%s has multiple possible source pages"), $pagename));
+					}
+					$pages{$pagename}=1;
 				}
 			}
 		},
@@ -289,7 +308,7 @@ sub refresh () { #{{{
 				if (file_pruned($_, $dir)) {
 					$File::Find::prune=1;
 				}
-				elsif (! -d $_ && ! -l $_) {
+				elsif (! -l $_ && ! -d _) {
 					my ($f)=/$config{wiki_file_regexp}/; # untaint
 					if (! defined $f) {
 						warn(sprintf(gettext("skipping bad filename %s"), $_)."\n");
@@ -299,12 +318,12 @@ sub refresh () { #{{{
 						# avoid underlaydir
 						# override attacks; see
 						# security.mdwn
-						if (! -e "$config{srcdir}/$f" && 
-						    ! -l "$config{srcdir}/$f") {
+						if (! -l "$config{srcdir}/$f" && 
+						    ! -e _) {
 						    	my $page=pagename($f);
-							if (! $exists{$page}) {
+							if (! $pages{$page}) {
 								push @files, $f;
-								$exists{$page}=1;
+								$pages{$page}=1;
 							}
 						}
 					}
@@ -313,11 +332,24 @@ sub refresh () { #{{{
 		}, $dir);
 	};
 
-	my (%rendered, @add, @del, @internal);
+	# Returns a list of all source files found, and a hash of 
+	# the corresponding page names.
+	return \@files, \%pages;
+}
+
+sub refresh () {
+	srcdir_check();
+	run_hooks(refresh => sub { shift->() });
+	my ($files, $exists)=find_src_files();
 
+	my (%rendered, @add, @del, @internal);
 	# check for added or removed pages
-	foreach my $file (@files) {
+	foreach my $file (@$files) {
 		my $page=pagename($file);
+		if (exists $pagesources{$page} && $pagesources{$page} ne $file) {
+			# the page has changed its type
+			$forcerebuild{$page}=1;
+		}
 		$pagesources{$page}=$file;
 		if (! $pagemtime{$page}) {
 			if (isinternal($page)) {
@@ -325,24 +357,24 @@ sub refresh () { #{{{
 			}
 			else {
 				push @add, $file;
-			}
-			$pagecase{lc $page}=$page;
-			if ($config{getctime} && -e "$config{srcdir}/$file") {
-				eval {
-					my $time=rcs_getctime("$config{srcdir}/$file");
-					$pagectime{$page}=$time;
-				};
-				if ($@) {
-					print STDERR $@;
+				if ($config{getctime} && -e "$config{srcdir}/$file") {
+					eval {
+						my $time=rcs_getctime("$config{srcdir}/$file");
+						$pagectime{$page}=$time;
+					};
+					if ($@) {
+						print STDERR $@;
+					}
 				}
 			}
+			$pagecase{lc $page}=$page;
 			if (! exists $pagectime{$page}) {
-				$pagectime{$page}=mtime(srcfile($file));
+				$pagectime{$page}=(srcfile_stat($file))[10];
 			}
 		}
 	}
 	foreach my $page (keys %pagemtime) {
-		if (! $exists{$page}) {
+		if (! $exists->{$page}) {
 			if (isinternal($page)) {
 				push @internal, $pagesources{$page};
 			}
@@ -353,12 +385,13 @@ sub refresh () { #{{{
 			$links{$page}=[];
 			$renderedfiles{$page}=[];
 			$pagemtime{$page}=0;
-			prune($config{destdir}."/".$_)
-				foreach @{$oldrenderedfiles{$page}};
+			foreach my $old (@{$oldrenderedfiles{$page}}) {
+				prune($config{destdir}."/".$old);
+			}
 			delete $pagesources{$page};
-			foreach (keys %destsources) {
-				if ($destsources{$_} eq $page) {
-					delete $destsources{$_};
+			foreach my $source (keys %destsources) {
+				if ($destsources{$source} eq $page) {
+					delete $destsources{$source};
 				}
 			}
 		}
@@ -366,18 +399,17 @@ sub refresh () { #{{{
 
 	# find changed and new files
 	my @needsbuild;
-	foreach my $file (@files) {
+	foreach my $file (@$files) {
 		my $page=pagename($file);
-		
-		my $mtime=mtime(srcfile($file));
+		my ($srcfile, @stat)=srcfile_stat($file);
 		if (! exists $pagemtime{$page} ||
-		    $mtime > $pagemtime{$page} ||
+		    $stat[9] > $pagemtime{$page} ||
 	    	    $forcerebuild{$page}) {
-			$pagemtime{$page}=$mtime;
+			$pagemtime{$page}=$stat[9];
 			if (isinternal($page)) {
 				push @internal, $file;
 				# Preprocess internal page in scan-only mode.
-				preprocess($page, $page, readfile(srcfile($file)), 1);
+				preprocess($page, $page, readfile($srcfile), 1);
 			}
 			else {
 				push @needsbuild, $file;
@@ -391,9 +423,9 @@ sub refresh () { #{{{
 		debug(sprintf(gettext("scanning %s"), $file));
 		scan($file);
 	}
-	calculate_backlinks();
+	calculate_links();
 	foreach my $file (@needsbuild) {
-		debug(sprintf(gettext("rendering %s"), $file));
+		debug(sprintf(gettext("building %s"), $file));
 		render($file);
 		$rendered{$file}=1;
 	}
@@ -401,6 +433,7 @@ sub refresh () { #{{{
 		# internal pages are not rendered
 		my $page=pagename($file);
 		delete $depends{$page};
+		delete $depends_simple{$page};
 		foreach my $old (@{$renderedfiles{$page}}) {
 			delete $destsources{$old};
 		}
@@ -414,7 +447,7 @@ sub refresh () { #{{{
 			foreach my $page (keys %{$backlinks{$p}}) {
 				my $file=$pagesources{$page};
 				next if $rendered{$file};
-		   		debug(sprintf(gettext("rendering %s, which links to %s"), $file, $p));
+		   		debug(sprintf(gettext("building %s, which links to %s"), $file, $p));
 				render($file);
 				$rendered{$file}=1;
 			}
@@ -424,24 +457,47 @@ sub refresh () { #{{{
 	if (%rendered || @del || @internal) {
 		my @changed=(keys %rendered, @del);
 
+ 		my %lcchanged = map { lc(pagename($_)) => 1 } @changed;
+ 
 		# rebuild dependant pages
-		foreach my $f (@files) {
+		foreach my $f (@$files) {
 			next if $rendered{$f};
 			my $p=pagename($f);
-			if (exists $depends{$p}) {
-				# only consider internal files
-				# if the page explicitly depends on such files
-				foreach my $file (@changed, $depends{$p}=~/internal\(/ ? @internal : ()) {
-					next if $f eq $file;
-					my $page=pagename($file);
-					if (pagespec_match($page, $depends{$p}, location => $p)) {
-						debug(sprintf(gettext("rendering %s, which depends on %s"), $f, $page));
-						render($f);
-						$rendered{$f}=1;
+			my $reason = undef;
+
+			if (exists $depends_simple{$p}) {
+				foreach my $d (keys %{$depends_simple{$p}}) {
+					if (exists $lcchanged{$d}) {
+						$reason = $d;
 						last;
 					}
 				}
 			}
+
+			if (exists $depends{$p} && ! defined $reason) {
+				D: foreach my $d (keys %{$depends{$p}}) {
+					my $sub=pagespec_translate($d);
+					next if $@ || ! defined $sub;
+
+					# only consider internal files
+					# if the page explicitly depends
+					# on such files
+					foreach my $file (@changed, $d =~ /internal\(/ ? @internal : ()) {
+						next if $file eq $f;
+						my $page=pagename($file);
+						if ($sub->($page, location => $p)) {
+							$reason = $page;
+							last D;
+						}
+					}
+				}
+			}
+
+			if (defined $reason) {
+				debug(sprintf(gettext("building %s, which depends on %s"), $f, $reason));
+				render($f);
+				$rendered{$f}=1;
+			}
 		}
 		
 		# handle backlinks; if a page has added/removed links,
@@ -474,7 +530,7 @@ sub refresh () { #{{{
 		    	my $linkfile=$pagesources{$link};
 			if (defined $linkfile) {
 				next if $rendered{$linkfile};
-				debug(sprintf(gettext("rendering %s, to update its backlinks"), $linkfile));
+				debug(sprintf(gettext("building %s, to update its backlinks"), $linkfile));
 				render($linkfile);
 				$rendered{$linkfile}=1;
 			}
@@ -486,7 +542,7 @@ sub refresh () { #{{{
 		my $page=pagename($src);
 		foreach my $file (@{$oldrenderedfiles{$page}}) {
 			if (! grep { $_ eq $file } @{$renderedfiles{$page}}) {
-				debug(sprintf(gettext("removing %s, no longer rendered by %s"), $file, $page));
+				debug(sprintf(gettext("removing %s, no longer built by %s"), $file, $page));
 				prune($config{destdir}."/".$file);
 			}
 		}
@@ -498,11 +554,9 @@ sub refresh () { #{{{
 	if (%rendered) {
 		run_hooks(change => sub { shift->(keys %rendered) });
 	}
-} #}}}
+}
 
-sub commandline_render () { #{{{
-	loadplugins();
-	checkconfig();
+sub commandline_render () {
 	lockwiki();
 	loadindex();
 	unlockwiki();
@@ -512,18 +566,19 @@ sub commandline_render () { #{{{
 	$file=~s/\Q$config{srcdir}\E\/?//;
 
 	my $type=pagetype($file);
-	die sprintf(gettext("ikiwiki: cannot render %s"), $srcfile)."\n" unless defined $type;
+	die sprintf(gettext("ikiwiki: cannot build %s"), $srcfile)."\n" unless defined $type;
 	my $content=readfile($srcfile);
 	my $page=pagename($file);
 	$pagesources{$page}=$file;
 	$content=filter($page, $page, $content);
 	$content=preprocess($page, $page, $content);
 	$content=linkify($page, $page, $content);
-	$content=htmlize($page, $type, $content);
-	$pagemtime{$page}=mtime($srcfile);
+	$content=htmlize($page, $page, $type, $content);
+	$pagemtime{$page}=(stat($srcfile))[9];
+	$pagectime{$page}=$pagemtime{$page} if ! exists $pagectime{$page};
 
 	print genpage($page, $content);
 	exit 0;
-} #}}}
+}
 
 1