[tracker] tracker-extract: Show where parsing errors happen in EPubs

[Bastien Nocera <hadess src gnome org>]

commit ba23d6eb960c18e2e92bfe808db364be09b4480f
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Aug 28 23:46:15 2014 +0200

    tracker-extract: Show where parsing errors happen in EPubs
    
    Error extracting EPUB contents (OEBPS/Text/info.xhtml): Error on line 59: Entity name 'copy' is not known
    is better than:
    Error extracting EPUB contents: Error on line 59: Entity name 'copy' is not known
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735645

 src/tracker-extract/tracker-extract-epub.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-epub.c b/src/tracker-extract/tracker-extract-epub.c
index 55a27d8..40d9fdc 100644
--- a/src/tracker-extract/tracker-extract-epub.c
+++ b/src/tracker-extract/tracker-extract-epub.c
@@ -575,13 +575,14 @@ extract_opf_contents (const gchar *uri,
                /* Page file is relative to OPF file location */
                path = g_build_filename (content_prefix, l->data, NULL);
                tracker_gsf_parse_xml_in_zip (uri, path, context, &error);
-               g_free (path);
 
                if (error) {
-                       g_warning ("Error extracting EPUB contents: %s\n",
-                                  error->message);
+                       g_warning ("Error extracting EPUB contents (%s): %s\n",
+                                  path, error->message);
+                       g_free (path);
                        break;
                }
+               g_free (path);
 
                if (content_data.limit <= 0) {
                        /* Reached plain text extraction limit */