dpaste/fabfile.py

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Python
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2011-05-30 09:03:04 +10:00
from fabric.api import env, local, run, require, cd
from fabric.operations import _prefix_commands, _prefix_env_vars
env.disable_known_hosts = True # always fails for me without this
env.hosts = ['pastebin.dev.lincolnloop.com']
env.root = '/opt/webapps/pastebin'
env.proj_root = env.root + '/src/pastebin'
env.proj_repo = 'git@github.com:myuser/myrepo.git'
env.pip_file = env.proj_root + '/requirements.pip'
def deploy():
"""Update source, update pip requirements, syncdb, restart server"""
update()
update_reqs()
syncdb()
restart()
def switch(branch):
"""Switch the repo branch which the server is using"""
with cd(env.proj_root):
ve_run('git checkout %s' % branch)
restart()
def version():
"""Show last commit to repo on server"""
with cd(env.proj_root):
sshagent_run('git log -1')
def restart():
"""Restart Apache process"""
run('touch %s/etc/apache/django.wsgi' % env.root)
def update_reqs():
"""Update pip requirements"""
ve_run('yes w | pip install -r %s' % env.pip_file)
def update():
"""Updates project source"""
with cd(env.proj_root):
sshagent_run('git pull')
def syncdb():
"""Run syncdb (along with any pending south migrations)"""
ve_run('manage.py syncdb --migrate')
def clone():
"""Clone the repository for the first time"""
with cd('%s/src' % env.root):
sshagent_run('git clone %s' % env.proj_repo)
ve_run('pip install -e %s' % env.proj_root)
with cd('%s/pastebin/conf/local' % env.proj_root):
run('ln -s ../dev/__init__.py')
run('ln -s ../dev/settings.py')
def ve_run(cmd):
"""
Helper function.
Runs a command using the virtualenv environment
"""
require('root')
return sshagent_run('source %s/bin/activate; %s' % (env.root, cmd))
def sshagent_run(cmd):
"""
Helper function.
Runs a command with SSH agent forwarding enabled.
Note:: Fabric (and paramiko) can't forward your SSH agent.
This helper uses your system's ssh to do so.
"""
# Handle context manager modifications
wrapped_cmd = _prefix_commands(_prefix_env_vars(cmd), 'remote')
try:
host, port = env.host_string.split(':')
return local(
"ssh -p %s -A %s@%s '%s'" % (port, env.user, host, wrapped_cmd)
)
except ValueError:
return local(
"ssh -A %s@%s '%s'" % (env.user, env.host_string, wrapped_cmd)
)