I am going to write backup solution for my personal laptop. I have 240GB SSD for development work and 500GB HDD for media files and backups.
I am care only about project files and don't care about windows files or program installation (as registry also should be preserved for backup to be useful). On Linux I uses: cp -al /backup/proj/DATEOLD /backup/proj/DATENEW rsync ... /home/user/proj/ /backup/proj/DATENEW/ and employ hardlinks to preserve space. NTFS FS has hardlinks. With ``cygutils-extra`` I can: $ winln $FROM $TO $ echo >>$FROM $ cmp $FROM $TO && echo OK But I don't understand how to emulate recursive behavior of ``cp -r -l``. Cygwin ``cp -l`` can use hard links but only with: CYGWIN=winsymlinks:native ``rsync --hard-links`` isn't reliable: bash# echo 1 >orig.txt bash# rsync -a --hard-links orig.txt new.txt bash# echo 2 >>orig.txt bash# diff -u orig.txt new.txt --- orig.txt 2017-08-02 14:04:36.976875300 +0300 +++ new.txt 2017-08-02 14:04:16.547209000 +0300 @@ -1,2 +1 @@ 1 -2 There is Windows build-in ``robocopy`` utility but its documentation looks too complex, I don't like to mix Cygwin and Windows paths and looks like it doesn't support hard link from "Robocopy.exe /? | grep -i hard". As development of rdiff-backup stalled in 2009 I don't believe that it supports hard links in native Windows build. As a bonus I am also interested to hear about solution with include data integrity checks to detect data altering or rotting of storage bits in backup. I think about employing md5sum utility... -- http://defun.work/ -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
