symlink resolver, per aiutare la cache dei template

git-svn-id: svn://luxion/repos/WebCoso/trunk@272 fcb26f47-9200-0410-b104-b98ab5b095f3

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/Path/ResolveSymlinks.pm b/lib/Path/ResolveSymlinks.pm
new file mode 100644
index 0000000..695122a
--- /dev/null
+++ b/lib/Path/ResolveSymlinks.pm
@@ -0,0 +1,39 @@
+package Path::ResolveSymlinks;
+use strict;
+use warnings;
+use Cwd 'abs_path';
+use Path::Class;
+use Carp;
+
+sub resolve_symlinks {
+    my ($name)=@_;
+
+    my ($dir,$file);
+    if (-d $name) {
+        $dir=dir($name);
+    }
+    elsif (-f $name) {
+        $file=file($name);
+        $dir=$file->parent;
+        $file=$file->basename;
+    }
+    else {
+        croak "$name is neither a file nor a directory";
+    }
+
+    $dir=dir(abs_path($dir));warn "dir: $dir\n";
+    return $dir unless defined $file;
+
+    $file=$dir->file($file);warn "file: $file\n";
+    return $file unless -l $file;
+
+    my $dest=file(readlink $file);warn "dest: $dest\n";
+    if ($dest->is_absolute) {
+        return resolve_symlinks($dest);
+    }
+    else {
+        return resolve_symlinks($dir->file($dest));
+    }
+}
+
+1;