[tracker] libtracker-miner: Restrict the amount of data that is logged for errors

[Debarshi Ray <debarshir src gnome org>]

commit 59745984f91fa0c5e464c312c3a142fe3bd3b853
Author: Debarshi Ray <debarshir gnome org>
Date:   Tue Jan 13 14:51:50 2015 +0100

    libtracker-miner: Restrict the amount of data that is logged for errors
    
    SPARQL update strings can be very long if the entire text of a document
    is being stored. Dumping these huge strings to the log eats up disk
    space and makes them harder to follow.
    
    However, often, the occurence of such an error indicates a broken
    extractor. In those cases, knowing part of the SPARQL can help in
    identifying the file that triggered the error.
    
    Usually the "nie:plainTextContent" property is the last one in the
    string, so we truncate the error messages at the first occurance of
    this property to achieve the best of both worlds.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735406

 src/libtracker-miner/tracker-decorator.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/src/libtracker-miner/tracker-decorator.c b/src/libtracker-miner/tracker-decorator.c
index b8978d8..781e4de 100644
--- a/src/libtracker-miner/tracker-decorator.c
+++ b/src/libtracker-miner/tracker-decorator.c
@@ -19,6 +19,8 @@
 
 #include "config.h"
 
+#include <string.h>
+
 #include "tracker-decorator.h"
 #include "tracker-decorator-internal.h"
 #include "tracker-priority-queue.h"
@@ -365,9 +367,17 @@ decorator_commit_cb (GObject      *object,
                        child_error = g_ptr_array_index (errors, i);
 
                        if (child_error) {
+                               gchar *msg, *p;
+
+                               msg = g_strdup (g_ptr_array_index (sparql, i));
+                               p = strstr (msg, "nie:plainTextContent");
+                               if (p != NULL)
+                                       *p = '\0';
+
                                g_warning ("Task %d, error: %s", i, child_error->message);
-                               g_warning ("Sparql update was:\n%s\n",
-                                          (gchar *) g_ptr_array_index (sparql, i));
+                               g_warning ("Sparql update was:\n%s\n", msg);
+
+                               g_free (msg);
                        }
                }