Set up {m,c,a}times on copied files (#2145).

[dcpomatic.git] / src / lib / ext.cc

diff --git a/src/lib/ext.cc b/src/lib/ext.cc
index feba68c1f6eec9c15951b1fa70cf010b6843fafd..ec34f147216d97af091fdaaeec060c9620403fef 100644 (file)
--- a/src/lib/ext.cc
+++ b/src/lib/ext.cc
@@ -57,6 +57,7 @@ extern "C" {
 #include <lwext4/ext4_mkfs.h>
 }
 #include <boost/filesystem.hpp>
+#include <chrono>
 #include <string>
 
 
@@ -90,6 +91,18 @@ count (boost::filesystem::path dir, uint64_t& total_bytes)
        }
 }
 
+
+static
+void
+set_timestamps_to_now (boost::filesystem::path path)
+{
+       auto const now = std::chrono::duration_cast<std::chrono::seconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+       ext4_mtime_set (path.generic_string().c_str(), now);
+       ext4_ctime_set (path.generic_string().c_str(), now);
+       ext4_atime_set (path.generic_string().c_str(), now);
+}
+
+
 static
 string
 write (boost::filesystem::path from, boost::filesystem::path to, uint64_t& total_remaining, uint64_t total, Nanomsg* nanomsg)
@@ -151,6 +164,8 @@ write (boost::filesystem::path from, boost::filesystem::path to, uint64_t& total
        ext4_fclose (&out);
        delete[] buffer;
 
+       set_timestamps_to_now (to);
+
        return digester.get ();
 }
 
@@ -231,6 +246,7 @@ copy (boost::filesystem::path from, boost::filesystem::path to, uint64_t& total_
                if (r != EOK) {
                        throw CopyError (String::compose("Failed to create directory %1", cr.generic_string()), r);
                }
+               set_timestamps_to_now (cr);
 
                for (directory_iterator i = directory_iterator(from); i != directory_iterator(); ++i) {
                        copy (i->path(), cr, total_remaining, total, copied_files, nanomsg);