def _install_requirements():
# Bootstrap with system specific way of installing pip and virtualenv
system_specific_module(env.system).install_requirements(env)
# Call user hook for this system
#try:
#globals()['install_requirements_'+env.system](env)
env['install_requirements_'+env.system](env)
#except KeyError:
# pass
# Copy over previous environment if asked
if env.virtualenv_copy_old:
oldenv = os.path.join(env.current, env.virtualenv_dir)
with cd(env.release_path):
run('if [ -e %(oldenv)s ]; then cp -r %(oldenv)s .; fi' % locals())
# Now create or update virtualenv and everything else
with cd(env.release_path):
run('virtualenv --no-site-packages %(virtualenv_dir)s' % env)
## We need to bootstrap into pip to avoid problems with old versions
#run('%(activate)s; pip install pip==0.7.2' % env)
run('%(activate)s; pip install -r %(requirements_file)s' % env)
def detect():
"""Detect the system type of a remote host."""
require('host')
if 'system' in env:
del env['system']
# Start with uname and work from there
with settings(shell='/bin/sh -c'):
env.uname = run('uname -a')
# Try and identify each system
systems = []
import liberace.systems
for system in liberace.systems:
try:
if system_specific_module(system).identify(env):
systems.append(system)
except AttributeError:
print system
raise
if len(systems) > 1:
raise ValueError(
'More than one system identified! %s identifies as %s' % (
env.host_string,
', '.join(systems),
)
)
elif len(systems) == 0:
raise ValueError('Cannot identify system for host %(host_string)s' % env)
else:
env.system = systems[0]
print '--> %(host_string)s is running %(system)s' % env
_system_config()
def _system_config():
require('system')
system_specific_module(env.system).settings(env)
