Dodanie fabfile na potrzeby wdrażania.

diff --git a/fabfile.py b/fabfile.py
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+++ b/fabfile.py
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+from __future__ import with_statement # needed for python 2.5
+from fabric.api import *
+
+import os
+
+# Globals
+env.project_name = 'wolnelektury'
+
+
+# ===========
+# = Servers =
+# ===========
+def staging():
+    """Use staging server"""
+    env.hosts = ['zuber@stigma.nowoczesnapolska.org.pl:2222']
+    env.path = '/var/lektury'
+    
+def production():
+    """Use production server"""
+    env.hosts = ['fundacja@wolnelektury:22123']
+    env.path = '/opt/lektury'
+
+
+# =========
+# = Tasks =
+# =========
+def test():
+    "Run the test suite and bail out if it fails"
+    require('project_dir', provided_by=[staging, production])
+    result = local('cd %(path)s; python manage.py test' % env)
+
+def deploy():
+    """
+    Deploy the latest version of the site to the servers, 
+    install any required third party modules, 
+    install the virtual host and then restart the webserver
+    """
+    require('hosts', provided_by=[staging, production])
+    require('path')
+    
+    import time
+    env.release = time.strftime('%Y-%m-%dT%H%M')
+    
+    upload_tar_from_git()
+    install_requirements()
+    symlink_current_release()
+    migrate()
+    restart_webserver()
+
+def deploy_version(version):
+    "Specify a specific version to be made live"
+    require('hosts', provided_by=[localhost,webserver])
+    require('path')
+    env.version = version
+    with cd(env.path):
+        run('rm releases/previous; mv releases/current releases/previous;', pty=True)
+        run('ln -s %(version)s releases/current' % env, pty=True)
+    restart_webserver()
+
+def rollback():
+    """
+    Limited rollback capability. Simple loads the previously current
+    version of the code. Rolling back again will swap between the two.
+    """
+    require('hosts', provided_by=[staging, production])
+    require('path')
+    with cd(env.path):
+        run('mv releases/current releases/_previous;', pty=True)
+        run('mv releases/previous releases/current;', pty=True)
+        run('mv releases/_previous releases/previous;', pty=True)
+    restart_webserver()
+    
+# def setup():
+#     """
+#     Setup a fresh virtualenv as well as a few useful directories, then run
+#     a full deployment
+#     """
+#     require('hosts', provided_by=[staging, production])
+#     require('path')
+#     sudo('aptitude install -y python-setuptools')
+#     sudo('easy_install pip')
+#     sudo('pip install virtualenv')
+#     sudo('aptitude install -y apache2-threaded')
+#     sudo('aptitude install -y libapache2-mod-wsgi') # beware, outdated on hardy!
+#     # we want to get rid of the default apache config
+#     sudo('cd /etc/apache2/sites-available/; a2dissite default;', pty=True)
+#     sudo('mkdir -p %(path)s; chown %(user)s:%(user)s %(path)s;' % env, pty=True)
+#     run('ln -s %(path)s www;' % env, pty=True) # symlink web dir in home
+#     with cd(env.path):
+#         run('virtualenv .;' % env, pty=True)
+#         run('mkdir logs; chmod a+w logs; mkdir releases; mkdir shared; mkdir packages;' % env, pty=True)
+#         if env.use_photologue: run('mkdir photologue');
+#         run('cd releases; ln -s . current; ln -s . previous;', pty=True)
+#     deploy()
+
+
+# =====================================================================
+# = Helpers. These are called by other functions rather than directly =
+# =====================================================================
+def upload_tar_from_git():
+    "Create an archive from the current Git master branch and upload it"
+    require('release', provided_by=[deploy])
+    local('git archive --format=tar master | gzip > %(release)s.tar.gz' % env)
+    run('mkdir -p %(path)s/releases/%(release)s' % env, pty=True)
+    run('mkdir -p %(path)s/packages' % env, pty=True)
+    put('%(release)s.tar.gz' % env, '%(path)s/packages/' % env)
+    run('cd %(path)s/releases/%(release)s && tar zxf ../../packages/%(release)s.tar.gz' % env, pty=True)
+    local('rm %(release)s.tar.gz' % env)
+
+def install_requirements():
+    "Install the required packages from the requirements file using pip"
+    require('release', provided_by=[deploy])
+    pip_options = file('pip-options.txt').read().strip()
+    with cd('%(path)s/releases/%(release)s' % env):
+        run('virtualenv --no-site-packages .')
+        run('pip install -E . %s -r requirements.txt' % pip_options)
+
+def symlink_current_release():
+    "Symlink our current release"
+    require('release', provided_by=[deploy])
+    require('path', provided_by=[staging, production])
+    with cd(env.path):
+        with settings(
+            hide('warnings', 'running', 'stdout', 'stderr'),
+            warn_only=True
+        ):
+            run('rm releases/previous; mv releases/current releases/previous;')
+        
+        run('ln -s %(release)s releases/current' % env)
+
+def migrate():
+    "Update the database"
+    require('project_name', provided_by=[staging, production])
+    with cd('%(path)s/releases/current/%(project_name)s' % env):
+        run('../bin/python manage.py syncdb --noinput' % env, pty=True)
+        run('../bin/python manage.py migrate' % env, pty=True)
+
+def restart_webserver():
+    "Restart the web server"
+    run('touch %(path)s/releases/current/%(project_name)s/%(project_name)s.wsgi' % env)
+
+# def install_site():
+#     "Add the virtualhost file to apache"
+#     require('release', provided_by=[deploy, setup])
+#     #sudo('cd %(path)s/releases/%(release)s; cp %(project_name)s%(virtualhost_path)s%(project_name)s /etc/apache2/sites-available/' % env)
+#     sudo('cd %(path)s/releases/%(release)s; cp vhost.conf /etc/apache2/sites-available/%(project_name)s' % env)
+#     sudo('cd /etc/apache2/sites-available/; a2ensite %(project_name)s' % env, pty=True)