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Commit f7c77971 by Michael DeHaan
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Merge pull request #1764 from njharman/pip 

pip module improvements
parents 70dbc810 19b84d05
Showing with 89 additions and 125 deletions
library/pip
......@@ -62,23 +62,32 @@ options:
required: false
default: present
choices: [ "present", "absent", "latest" ]
extra_args:
description:
- Extra arguments passed to pip.
required: false
default: null
version_added: "1.0"
examples:
- code: "pip: name=flask"
description: Install I(flask) python package.
- code: "pip: name=flask version=0.8"
description: Install I(flask) python package on version 0.8.
- code: "pip: name=flask virtualenv=/srv/webapps/my_app/venv"
- code: "pip: name=flask virtualenv=/my_app/venv"
description: "Install I(Flask) (U(http://flask.pocoo.org/)) into the specified I(virtualenv)"
- code: "pip: requirements=/srv/webapps/my_app/src/requirements.txt"
- code: "pip: requirements=/my_app/requirements.txt"
description: Install specified python requirements.
- code: "pip: requirements=/srv/webapps/my_app/src/requirements.txt virtualenv=/srv/webapps/my_app/venv"
- code: "pip: requirements=/my_app/requirements.txt virtualenv=/my_app/venv"
description: Install specified python requirements in indicated I(virtualenv).
- code: "pip: requirements=/my_app/requirements.txt extra_args='-i https://example.com/pypi/simple'"
description: Install specified python requirements and custom Index URL.
notes:
- Please note that U(http://www.virtualenv.org/, virtualenv) must be installed on the remote host if the virtualenv parameter is specified.
requirements: [ "virtualenv", "pip" ]
author: Matt Wright
'''
def _get_full_name(name, version=None):
if version is None:
resp = name
......@@ -86,28 +95,23 @@ def _get_full_name(name, version=None):
resp = name + '==' + version
return resp
def _ensure_virtualenv(module, env, virtualenv):
if os.path.exists(os.path.join(env, 'bin', 'activate')):
return 0, '', ''
else:
return _run('%s %s' % (virtualenv, env))
def _is_package_installed(name, pip, version=None, requirements=None):
cmd = '%s freeze' % pip
if requirements is not None:
cmd += ' -r %s' % requirements
rc, status_stdout, status_stderr = _run(cmd)
if requirements is not None:
if 'not installed' in status_stderr:
return False
else:
return True
return _get_full_name(name, version).lower() in status_stdout.lower()
def _did_install(out):
return 'Successfully installed' in out
def _get_pip(module, env):
# On Debian and Ubuntu, pip is pip.
# On Fedora18 and up, pip is python-pip.
# On Fedora17 and below, CentOS and RedHat 6 and 5, pip is pip-python.
# On Fedora, CentOS, and RedHat, the exception is in the virtualenv.
# There, pip is just pip.
# Try pip with the virtualenv directory first.
pip = module.get_bin_path('pip', False, ['%s/bin' % env])
for p in ['python-pip', 'pip-python']:
if not pip:
pip = module.get_bin_path(p, False, ['%s/bin' % env])
# pip should have been found by now. The final call to get_bin_path
# will trigger fail_json.
if not pip:
pip = module.get_bin_path('pip', True, ['%s/bin' % env])
return pip
def _run(cmd):
......@@ -118,128 +122,88 @@ def _run(cmd):
return (process.returncode, stdout, stderr)
def _fail(module, cmd, out, err):
msg = ''
if out:
msg += "stdout: %s" % (out, )
if err:
msg += "\n:stderr: %s" % (err, )
module.fail_json(cmd=cmd, msg=msg)
def main():
pip = None
virtualenv = None
env = None
arg_spec = dict(
state=dict(default='present', choices=['absent', 'present', 'latest']),
name=dict(default=None, required=False),
version=dict(default=None, required=False),
requirements=dict(default=None, required=False),
virtualenv=dict(default=None, required=False),
use_mirrors=dict(default='yes', choices=BOOLEANS)
state_map = dict(
present='install',
absent='uninstall -y',
latest='install -U',
)
module = AnsibleModule(
argument_spec=arg_spec,
required_one_of=[['name','requirements']],
mutually_exclusive=[['name','requirements']],
argument_spec=dict(
state=dict(default='present', choices=state_map.keys()),
name=dict(default=None, required=False),
version=dict(default=None, required=False),
requirements=dict(default=None, required=False),
virtualenv=dict(default=None, required=False),
use_mirrors=dict(default='yes', choices=BOOLEANS),
extra_args=dict(default=None, required=False),
),
required_one_of=[['name', 'requirements']],
mutually_exclusive=[['name', 'requirements']],
)
rc = 0
err = ''
out = ''
env = module.params['virtualenv']
if env:
virtualenv = module.get_bin_path('virtualenv', True)
rc_venv, out_venv, err_venv = _ensure_virtualenv(module, env, virtualenv)
rc += rc_venv
out += out_venv
err += err_venv
# On Debian and Ubuntu, pip is pip.
# On Fedora18 and up, pip is python-pip.
# On Fedora17 and below, CentOS and RedHat 6 and 5, pip is pip-python.
# On Fedora, CentOS, and RedHat, the exception is in the virtualenv.
# There, pip is just pip.
# Try pip with the virtualenv directory first.
pip = module.get_bin_path('pip', False, ['%s/bin' % env])
for p in ['python-pip', 'pip-python']:
if not pip:
pip = module.get_bin_path(p, False, ['%s/bin' % env])
# pip should have been found by now. The final call to get_bin_path
# will trigger fail_json.
if not pip:
pip = module.get_bin_path('pip', True, ['%s/bin' % env])
state = module.params['state']
name = module.params['name']
version = module.params['version']
requirements = module.params['requirements']
use_mirrors = module.boolean(module.params['use_mirrors'])
command_map = dict(present='install', absent='uninstall', latest='install')
extra_args = module.params['extra_args']
if state == 'latest' and version is not None:
module.fail_json(msg='version is incompatible with state=latest')
if name and '=' in name:
module.fail_json(msg='version must be specified in the version parameter')
if state == 'latest' and requirements is not None:
module.fail_json(msg='requirements is incompatible with state=latest')
if name is not None and '=' in name:
module.fail_json(msg='versions must be specified in the version= parameter')
cmd = None
installed = None
err = ''
out = ''
if name and state == 'latest':
env = module.params['virtualenv']
cmd = '%s %s %s --upgrade' % (pip, command_map[state], name)
rc_pip, out_pip, err_pip = _run(cmd)
if env:
virtualenv = module.get_bin_path('virtualenv', True)
if not os.path.exists(os.path.join(env, 'bin', 'activate')):
cmd = '%s %s' % (virtualenv, env)
rc, out_venv, err_venv = _run(cmd)
out += out_venv
err += err_venv
if rc != 0:
_fail(module, cmd, out, err)
pip = _get_pip(module, env)
cmd = '%s %s' % (pip, state_map[state])
if state != 'absent' and use_mirrors:
cmd += ' --use-mirrors'
if extra_args:
cmd += ' %s' % extra_args
if name:
cmd += ' %s' % _get_full_name(name, version)
elif requirements:
cmd += ' -r %s' % requirements
rc += rc_pip
out += out_pip
err += err_pip
rc, out_pip, err_pip = _run(cmd)
out += out_pip
err += err_pip
if rc == 1 and state == 'absent' and 'not installed' in out_pip:
pass # rc is 1 when attempting to uninstall non-installed package
elif rc != 0:
_fail(module, cmd, out, err)
if state == 'absent':
changed = 'Successfully uninstalled' in out_pip
else:
changed = 'Successfully installed' in out_pip
elif name or requirements:
installed = _is_package_installed(name, pip, version, requirements)
changed = ((installed and state == 'absent') or
(not installed and state == 'present'))
if changed:
cmd = '%s %s ' % (pip, command_map[state])
if name:
if state == 'present':
full_name = _get_full_name(name, version)
else:
full_name = name
cmd += '%s' % full_name
elif requirements:
cmd += ' -r %s' % requirements
if state == 'absent':
cmd = cmd + ' -y'
elif use_mirrors:
cmd = cmd + ' --use-mirrors'
rc_pip, out_pip, err_pip = _run(cmd)
rc += rc_pip
out += out_pip
err += err_pip
if requirements:
changed = ((_did_install(out) and state == 'present') or
(not _did_install(out) and state == 'absent'))
if rc != 0:
if not out:
msg = err
elif not err:
msg = out
else:
msg = "stdout: %s\n:stderr: %s" % (out, err)
module.fail_json(msg=msg, cmd=cmd)
module.exit_json(changed=changed, cmd=cmd, name=name, version=version,
state=state, requirements=requirements, virtualenv=env)
......
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