Added 'Backup Wallet' menu option

- icon from the LGPL Nuvola set (like the tick) - http://www.icon-king.com/projects/nuvola/
- include 'boost/version.hpp' in db.cpp so that the overwrite version of copy can be used
- catch exceptions in BackupWallet (e.g. filesystem_error thrown when trying to overwrite without the overwrite flag set)
- include db.h in walletmodel.cpp for BackupWallet function
- updated doc/assets-attribution.txt and contrib/debian/copyright with copyright info for new icon

1 files changed, 11 insertions, 5 deletions

diff --git a/src/db.cpp b/src/db.cpp
index 3bdda61569..9a904ec2e0 100644
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -6,6 +6,7 @@
 #include "headers.h"
 #include "db.h"
 #include "net.h"
+#include <boost/version.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
 
@@ -1064,14 +1065,19 @@ bool BackupWallet(const CWallet& wallet, const string& strDest)
                 filesystem::path pathDest(strDest);
                 if (filesystem::is_directory(pathDest))
                     pathDest = pathDest / wallet.strWalletFile;
+
+                try {
 #if BOOST_VERSION >= 104000
-                filesystem::copy_file(pathSrc, pathDest, filesystem::copy_option::overwrite_if_exists);
+                    filesystem::copy_file(pathSrc, pathDest, filesystem::copy_option::overwrite_if_exists);
 #else
-                filesystem::copy_file(pathSrc, pathDest);
+                    filesystem::copy_file(pathSrc, pathDest);
 #endif
-                printf("copied wallet.dat to %s\n", pathDest.string().c_str());
-
-                return true;
+                    printf("copied wallet.dat to %s\n", pathDest.string().c_str());
+                    return true;
+                } catch(const filesystem::filesystem_error &e) {
+                    printf("error copying wallet.dat to %s - %s\n", pathDest.string().c_str(), e.what());
+                    return false;
+                }
             }
         }
         Sleep(100);