Add add_literal_underlay and use it for the transient underlay

This means we don't need to import Cwd and use abs_path.

2 files changed, 15 insertions, 9 deletions

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 799236f35..7d1f5c401 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -810,17 +810,23 @@ sub srcfile ($;$) {
 	return (srcfile_stat(@_))[0];
 }
 
-sub add_underlay ($) {
+sub add_literal_underlay ($) {
 	my $dir=shift;
 
-	if ($dir !~ /^\//) {
-		$dir="$config{underlaydirbase}/$dir";
-	}
-
 	if (! grep { $_ eq $dir } @{$config{underlaydirs}}) {
 		unshift @{$config{underlaydirs}}, $dir;
 	}
+}
+
+sub add_underlay ($) {
+	my $dir = shift;
+
+	if ($dir !~ /^\//) {
+		$dir="$config{underlaydirbase}/$dir";
+	}
 
+	add_literal_underlay($dir);
+	# why does it return 1? we just don't know
 	return 1;
 }
 
diff --git a/IkiWiki/Plugin/transient.pm b/IkiWiki/Plugin/transient.pm
index c482b8552..9811aa010 100644
--- a/IkiWiki/Plugin/transient.pm
+++ b/IkiWiki/Plugin/transient.pm
@@ -25,10 +25,10 @@ sub getsetup () {
 our $transientdir;
 
 sub checkconfig () {
-	eval q{use Cwd 'abs_path'};
-	error($@) if $@;
-	$transientdir = abs_path($config{wikistatedir})."/transient";
-	add_underlay($transientdir);
+	$transientdir = $config{wikistatedir}."/transient";
+	# add_underlay treats relative underlays as relative to the installed
+	# location, not the cwd. That's not what we want here.
+	IkiWiki::add_literal_underlay($transientdir);
 }
 
 sub change (@) {