Improved documentation

This commit is contained in:
Jonas Borgström 2011-11-06 16:59:14 +01:00
parent 6ffa7e851c
commit d130fa2cfb
1 changed files with 77 additions and 16 deletions

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@ -17,6 +17,15 @@ Secure
and the data integrity and authenticity is verified using
`HMAC-SHA256 <http://en.wikipedia.org/wiki/HMAC>`_.
Remote stores
Darc can store data on remote hosts over SSH as long as Darc is installed on
the remote host. The following syntax is used to specify a remote store::
$ darc list hostname:path
$ darc extract hostname:path::archive-name
$ darc extract username@hostname:path::archive-name
Definitions
-----------
Deduplication
@ -45,43 +54,95 @@ Requirements
* msgpack-python
* paramiko (for remote store support)
Installation
------------
Usage
-----
The following instructions will install Darc in ``/usr/local/darc/`` without interfering
with the rest of the system.
Before the first archive can be created a store needs to be initialized.
A store is directory containing
1. Initialize a new python environment::
Initialize a new empty store::
$ virtualenv /usr/local/darc
2. Extract the source code using GIT or a release tarball::
$ mkdir /usr/local/darc/src/
$ cd /usr/local/darc/src/
$ tar -xvzf darc-x.y.tar.gz
OR
$ git clone git://github.com/jborg/darc.git
3. Install Darc::
$ cd darc-x.y/
$ ../../bin/python setup.py install
4. Add /usr/local/darc/bin to $PATH
Basic Usage
===========
Initializing a store
--------------------
Before the first archive can be created a store needs to be initialized::
$ darc init /data/my-backup.darc
Initializing store "/data/my-backup.darc"
Key file password (Leave blank for no password): *****
Key file password again: *****
Key file "/Users/jonas/.darc/keys/data_my_backup_darc" created.
Key file "/home/YOU/.darc/keys/data_my_backup_darc" created.
Remember that this file (and password) is needed to access your data. Keep it safe!
Create an archive::
darc create -v /data/my-backup.darc::backup-2011-09-10 ~/Documents ~/src
Archive creation
----------------
The following command will create a new archive called ``backup-2011-09-10`` containing
all files in ``~/Documents`` and ``~/src``::
Extract an archive::
$ darc create -v /data/my-backup.darc::backup-2011-09-10 ~/Documents ~/src
darc extract -v /data/my-backup.darc::backup-2011-09-10
Extract an archive
------------------
The following command will extract the archive ``backup-2011-09-10``::
Delete an archive::
$ darc extract -v /data/my-backup.darc::backup-2011-09-10
darc delete /data/my-backup.darc::backup-2011-09-10
Delete an archive
-----------------
The following command will delete archive ``backup-2011-09-10``::
List store contents::
$ darc delete /data/my-backup.darc::backup-2011-09-10
darc list /data/my-backup.darc
List store contents
-------------------
The following command will list the names of all archives in the store::
List archive contents::
$ darc list /data/my-backup.darc
backup-2011-09-09
backup-2011-09-10
...
List archive contents
---------------------
The following command will list the contents of the ``backup-2011-09-10`` archive::
$ darc list /data/my-backup.darc::backup-2011-09-10
-rw-r--r-- YOU users 280 May 14 2010 home/YOU/Documents/something.txt
-rw-r--r-- YOU users 280 May 14 2010 home/YOU/Documents/something-else.pdf
...
Purge old archives
------------------
When performing automatic backups it is important to periodically purge old backup
archives to stop the store from growing too big.
The following command will purge old archives and only keep the
seven latest end of day archives and the five latest end of week archives::
$ darc purge --daily=7 --weekly=5 /data/my-backup.darc
darc list /data/my-backup.darc::backup-2011-09-10
Indices and tables
==================