[evolution] Bug 770369 - Strip trailing white-spaces in Remove duplicate messages

[Milan Crha <mcrha src gnome org>]

commit 6e80a7e097ed5d3164d19b2088ae75c74a5a656d
Author: Milan Crha <mcrha redhat com>
Date:   Thu Aug 25 21:01:20 2016 +0200

    Bug 770369 - Strip trailing white-spaces in Remove duplicate messages

 libemail-engine/e-mail-folder-utils.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/libemail-engine/e-mail-folder-utils.c b/libemail-engine/e-mail-folder-utils.c
index edfa9ea..0bb12bf 100644
--- a/libemail-engine/e-mail-folder-utils.c
+++ b/libemail-engine/e-mail-folder-utils.c
@@ -725,13 +725,21 @@ emfu_get_messages_hash_sync (CamelFolder *folder,
                                        content, stream, cancellable, error);
 
                                if (n_bytes >= 0) {
+                                       guint data_len;
+
                                        /* The CamelStreamMem owns the buffer. */
                                        buffer = camel_stream_mem_get_byte_array (
                                                CAMEL_STREAM_MEM (stream));
                                        g_return_val_if_fail (buffer != NULL, NULL);
 
-                                       digest = g_compute_checksum_for_data (
-                                               G_CHECKSUM_SHA256, buffer->data, buffer->len);
+                                       data_len = buffer->len;
+
+                                       /* Strip trailing white-spaces and empty lines */
+                                       while (data_len > 0 && g_ascii_isspace (buffer->data[data_len - 1]))
+                                               data_len--;
+
+                                       if (data_len > 0)
+                                               digest = g_compute_checksum_for_data (G_CHECKSUM_SHA256, 
buffer->data, data_len);
                                }
 
                                g_object_unref (stream);