def _get_frozen_requirements():
if env.PIP_DYNAMIC_REQUIREMENT_PATH:
dynamic_reqs = run('cat %s' % env.PIP_DYNAMIC_REQUIREMENT_PATH)
dynamic_egg_list = _get_eggs(dynamic_reqs)
with virtualenv():
freeze_output = run('pip freeze').stdout
# Results from run include a '\r\n' in them. Regex does not treat \r\n
# as a newline. So we must remove this.
freeze_output = normalise_newlines(freeze_output)
for egg_name in dynamic_egg_list:
# Python 2.6 re.sub command does not take flags so compile the pattern.
# Also, I'm not sure why the DOTALL flag is needed here.
pattern = re.compile(r'^.+?#egg=%s$' % egg_name, flags=re.MULTILINE)
freeze_output = pattern.sub('', freeze_output)
# Remove empty lines
freeze_output = '\n'.join([line for line in freeze_output.split('\n')
if line.strip()])
else:
with virtualenv():
freeze_output = run('pip freeze').stdout
freeze_output = normalise_newlines(freeze_output)
return freeze_output
def update_frozen_pip_requirements():
"""
This is actually going to use
"""
if not env.PIP_REQUIREMENT_PATH:
print red('env.PIP_REQUIREMENT_PATH not set.')
return
if not files.exists(env.PIP_REQUIREMENT_PATH):
print red('File at env.PIP_REQUIREMENT_PATH(%s) does not exist.' \
% env.PIP_REQUIREMENT_PATH)
return
with virtualenv():
out = _get_frozen_requirements()
pip_file_out = run('cat %s' % env.PIP_REQUIREMENT_PATH).stdout
pip_file_out = normalise_newlines(pip_file_out)
if out == pip_file_out:
print green('pip requirements are upto date.')
return
run('pip install -r %s' % env.PIP_REQUIREMENT_PATH)