From f38ea4f75d4a44859b9a1c7ae56c1ebee1ab37e4 Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluewind@xinu.at>
Date: Sun, 14 Aug 2016 15:50:28 +0200
Subject: borg-restore.pl: misc

- switch back to undef instead of -1
- fix incorrect assertion
- clean up path before resolving

Signed-off-by: Florian Pritz <bluewind@xinu.at>
---
 borg-restore.pl | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/borg-restore.pl b/borg-restore.pl
index 038d23b..ba4998c 100755
--- a/borg-restore.pl
+++ b/borg-restore.pl
@@ -87,6 +87,7 @@ use File::Basename;
 use File::Copy;
 use File::Path qw(mkpath);
 use File::Slurp;
+use File::Spec;
 use File::Temp;
 use Getopt::Long;
 use IO::Compress::Gzip qw($GzipError);
@@ -398,7 +399,7 @@ sub sanitize_db_data {
 		if (defined($item)) {
 			push @ret, $item + 0;
 		} else {
-			push @ret, -1;
+			push @ret, undef;
 		}
 	}
 
@@ -554,7 +555,7 @@ sub get_mtime_from_lookuptable {
 	for my $component (@components) {
 		$node = $$node[0]->{$component};
 		if (!defined($node)) {
-			return -1;
+			return undef;
 		}
 	}
 	return $$node[1];
@@ -564,12 +565,12 @@ sub clean_db {
 	my $archives = shift;
 
 	while (my ($path, $data) = each %db) {
-		# check if data is empty or all fields in data are -1
-		if (!@$data || all { $_ != -1 } @$data) {
+		# check if data is empty or all fields in data are undef
+		if (!@$data || all { !defined($_) } @$data) {
 			debug("Deleting path because it's not part of any archive: ", $path);
 			delete $db{$path};
 		}
-		assert(@$data == @$archives) if DEBUG;
+		assert(@$data <= @$archives) if DEBUG;
 	}
 }
 
@@ -621,7 +622,15 @@ sub main {
 		exit(1);
 	}
 
-	my $abs_path = abs_path($path);
+	my $canon_path = File::Spec->canonpath($path);
+	my $abs_path = abs_path($canon_path);
+	print Dumper($abs_path, $path, $canon_path);
+	if (!defined($abs_path)) {
+		say STDERR "Error: Failed to resolve path to absolute path: $canon_path: $!";
+		say STDERR "Make sure that all parts of the path, except the last one, exist.";
+		exit(1);
+	}
+
 	if (!defined($destination)) {
 		$destination = $abs_path;
 	}
-- 
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