X-Git-Url: http://git.tuebingen.mpg.de/?p=dss.git;a=blobdiff_plain;f=INSTALL;h=db3d1c56386bb4c117c333adbe84c4694664c9e9;hp=bebfe05f5e50cad84c138a38a26ba85697a2c126;hb=ce9d8dbb002447f4a7de548a1e3fe3ec5ead73b6;hpb=40aebcfaecb7ad2414794d4a3f41e0603c08a6e1 diff --git a/INSTALL b/INSTALL index bebfe05..db3d1c5 100644 --- a/INSTALL +++ b/INSTALL @@ -1,61 +1,91 @@ Type - make + make -in the dss source directory to build the dss executable. You -likely need a recent version of gnu gengetopt, -ftp://ftp.gnu.org/pub/gnu/gengetopt/, to compile dss. +in the dss source directory to build the dss executable and copy it +to some directory that is included in your PATH, e.g. to `$HOME/bin` +or to `/usr/local/bin`. + +Note that [gnu +gengetopt](https://www.gnu.org/software/gengetopt/gengetopt.html) +is required to compile dss. + +Optionally, type + + make man + +to create the man page of dss. This invokes help2man so make sure +that help2man is installed on your system. Note that the man page is +just the nroff variant of the output of `dss --detailed-help`. dss is known to compile on Linux, MacOS, Solaris, FreeBSD and -NetBSD. However, it is run-tested on Linux only. +NetBSD. However, it is run-tested only on Linux. -Also make sure that rsync, http://rsync.samba.org/, is installed on +Also make sure that [rsync](http://rsync.samba.org/) is installed on your system. Version 2.6.1 or newer is required. -In order to create snapshots of the existing directory +Examples: +--------- + +Suppose you'd like to create snapshots of the existing directory - /tmp/foo + /foo/bar in the directory - /tmp/bar, + /baz/qux. + +Create the config file -execute the commands + ~/.dssrc - mkdir /tmp/bar - ./dss --run --source-dir /tmp/foo --dest-dir /tmp/bar +that contains the values for the source and the destination directories +as follows: -To print a list of all snapshots created so far, use + echo 'source-dir "/foo/bar"' > ~/.dssrc + echo 'dest-dir "/baz/qux"' >> ~/.dssrc - ./dss --list --source-dir /tmp/foo --dest-dir /tmp/bar +Then execute the commands -You might want to create the config file + mkdir /baz/qux + dss --run - ~/.dssrc +In order to print the list of all snapshots created so far, use -that contains the values for the source and the destination -directories. In the above example, this file would contain the -following lines: + dss --ls - source-dir "/tmp/foo" - dest-dir "/tmp/bar" +Yes, it's really that easy. -Using a configuration file allows you to simply type +The second example involves a slightly more sophisticated config file. +It instructs dss to exclude everything which matches at least one +pattern of the given exclude file, prevents rsync from crossing file +system boundaries and increases the number of snapshots. - ./dss --run + source-dir "/foo/bar" + dest-dir "/baz/qux" + # exclude files matching patterns in /etc/dss.exclude + rsync-option "--exclude-from=/etc/dss.exclude" + # don't cross filesystem boundaries + rsync-option "--one-file-system" + # maintain 2^6 - 1 = 63 snaphots + num-intervals "6" -to start snapshot creation and +The /etc/dss.exclude file could look like this (see rsync(1) for +more examples) - ./dss --list -to list all avalable snapshots. + - /proc + - /**/tmp/ -Try +Note that dss supports many more features and config options such +as taking snapshots from remote hosts and several hooks that are +executed on certain events, for example whenever a snapshot was +created successfully. Try - ./dss -h + dss -h for an overview of all supported command line options or - ./dss --detailed-help + dss --detailed-help for the full help text.