silikonmetro.blogg.se - Unison file synchronization

Unison file synchronization update#
Unison file synchronization archive#
Unison file synchronization software#

unison directory for the values of roots of two replicas and other preferences. If Unison is started with no arguments on the command line, Unison looks for default.prf in the. Preferences can be stored in a text file so that they need not be typed every time Unison is run. maxthreads n - maximum number of concurrent file transfers.log - record actions in file specified by logfile preference.ignore xxx - add a pattern to ignore list.

backup xxx - add a pattern to backup list.

auto - automatically accept default actions.

Some of the preferences are, for example, Some preferences are boolean valued flags, these are either set or not set. These parameters are known as preferences. It is possible to pass parameters to Unison so that fine tune its processing as per your requirements.

Unison file synchronization archive#

The archive file for each replica and profiles are stored in the. If set, its value is the name of this directory. Its location depends on the UNISON environment variable. unison directory, preferences and profiles. We will get back to the above-mentioned command formats but first, let's look at the concepts of. Unison lists the conflicting updates, one by one, giving the opportunity to the user to examine the relevant path in more detail and choose an appropriate action. Then, there are updated paths which are conflicting. For these, Unison suggests a default action to the user. First, the paths which are not conflicting, for example new files that have been created since the last synchronization.

Updated paths can be categorized into two groups. Then, there are paths which have been updated and need to be synchronized. If the path is nothing, that is, it is not a file, symbolic link or directory, its contents are the token "ABSENT".Ī path is conflicting, if it has been updated in one of the replicas and the contents in the two replicas are not identical.īased on the analysis of its archive files and current contents of paths, Unison identifies the paths, which are the same in both replicas and, for these, nothing needs to be done. If the path is a directory, its contents are the token DIRECTORY along with the permission bits of the directory. If the path is a symbolic link, its contents are the string giving the link in the file system. If the path is an ordinary file, the contents are the actual bytes in the file and its permission bits.

Unison file synchronization update#

An empty path denotes the root.Īn update refers to change in contents of a path since Unison was used to synchronize the replica last time.

For example, if the root abc/def is being synchronized with another replica and then path ghi/jkl refers to the string abc/def/ghi/jkl, which may be one of the above-mentioned four possibilities.

it may not refer to anything in the replica.Ī path is specified relative to the root.

is an example of a remote absolute root.Ī path refers to a point in a replica.

whereas /home/abc/def is a local absolute root, and.

Otherwise it is relative to the file system directory where Unison has been started. In case it is absolute, its value starts with /, the root of a file system. The root gives the location of a replica, either as a node in local file system, or at a remote host. Unison can be installed by giving the command,Ī replica is a set of files organized in a directory tree structure which need to synchronized with similar structure at another location, which may be a node at the local file system or at a remote host.Ī replica is identified by its root. In case some files have changes on both laptop as well as desktop, Unison indicates that and gives you an option about the direction you wish to copy each such file, that is, whether a file should be copied from desktop to laptop or vice-versa. It can help you in copying the files modified on laptop to desktop and vice-versa.

Unison file synchronization software#

Unison can help you in synchronizing the two directory trees of the software package on the two computers. At the end of the day, you wish to synchronize the two versions on the laptop and the desktop. You might also have the development environment on a laptop and do some work on it occasionally. For example, you might be working on a development of a new software product on a desktop computer. As we work on different computers at different times, it becomes increasingly difficult to keep track of file versions.