From a64da5915d4023d256e1bda425ea6e10c1255812 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 3 Jun 2015 15:19:32 +0200
Subject: [PATCH] Be more robust wrt broken .narinfo files

---
 perl/lib/Nix/Manifest.pm | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/perl/lib/Nix/Manifest.pm b/perl/lib/Nix/Manifest.pm
index 93c9c261..fb4a4646 100644
--- a/perl/lib/Nix/Manifest.pm
+++ b/perl/lib/Nix/Manifest.pm
@@ -462,9 +462,16 @@ sub parseNARInfo {
             return undef;
         }
 
-        my $fingerprint = fingerprintPath(
-            $storePath, $narHash, $narSize,
-            [ map { "$Nix::Config::storeDir/$_" } @refs ]);
+        my $fingerprint;
+        eval {
+            $fingerprint = fingerprintPath(
+                $storePath, $narHash, $narSize,
+                [ map { "$Nix::Config::storeDir/$_" } @refs ]);
+        };
+        if ($@) {
+            warn "cannot compute fingerprint of ‘$location’; ignoring\n";
+            return undef;
+        }
 
         if (!checkSignature($publicKey, decode_base64($sig64), $fingerprint)) {
             warn "NAR info file ‘$location’ has an incorrect signature; ignoring\n";