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Add module common code to allow it to be easier to indicate whether arguments are mutually exclusive, required in conjunction, or whether one of a list of arguments is required. This simplifies writing Python modules.

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This commit is contained in:
Michael DeHaan
2012-08-11 18:13:29 -04:00
parent 98c350a6ac
commit 1e4d45af1e
4 changed files with 61 additions and 52 deletions
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42
library/pip
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@@ -90,7 +90,11 @@ def main():
virtualenv=dict(default=None, required=False)
)
module = AnsibleModule(argument_spec=arg_spec)
module = AnsibleModule(
argument_spec=arg_spec,
required_one_of=[['name','requirements']],
mutually_exclusive=[['name','requirements']],
)
rc = 0
err = ''
@@ -115,38 +119,19 @@ def main():
command_map = dict(present='install', absent='uninstall', latest='install')
if state == 'latest' and version is not None:
module.fail_json(msg='If `state` is set to `latest` the `version` '
'parameter must not be specified.')
module.fail_json(msg='version is incompatible with state=latest')
if state == 'latest' and requirements is not None:
module.fail_json(msg='If `state` is set to `latest` the `requirements` '
'parameter must not be specified.')
module.fail_json(msg='requirements is incompatible with state=latest')
if name is not None and '==' in name:
module.fail_json(msg='It looks like you specified the version number '
'in the library name. Use the `version` parameter '
'to specify version instead')
if version is not None and name is None:
module.fail_json(msg='The `version` parameter must be used with the '
'`name` parameter and not with the `requirements` '
'paramter')
if name is None and requirements is None:
module.fail_json(msg='You must specify a python library name via '
'the `name` parameter or a requirements file via '
'the `requirements` paramter')
if name and requirements:
module.fail_json(msg='Both `name` and `requirements` were specified. '
'Specify only the python library name via the '
'`name` parameter or a requirements file via the '
'`requirements` parameter')
if name is not None and '=' in name:
module.fail_json(msg='versions must be specified in the version= parameter')
cmd = None
installed = None
if requirements:
cmd = '%s %s -r %s --use-mirrors' % (pip, command_map[state], requirements)
rc_pip, out_pip, err_pip = _run(cmd)
@@ -158,8 +143,8 @@ def main():
(not _did_install(out) and state == 'absent'))
if name and state == 'latest':
cmd = '%s %s %s --upgrade' % (pip, command_map[state], name)
cmd = '%s %s %s --upgrade' % (pip, command_map[state], name)
rc_pip, out_pip, err_pip = _run(cmd)
rc += rc_pip
@@ -169,8 +154,8 @@ def main():
changed = 'Successfully installed' in out_pip
elif name:
installed = _is_package_installed(name, pip, version)
changed = ((installed and state == 'absent') or
(not installed and state == 'present'))
@@ -188,8 +173,7 @@ def main():
cmd = cmd + ' --use-mirrors'
rc_pip, out_pip, err_pip = _run(cmd)
rc += rc_pip
rc += rc_pip
out += out_pip
err += err_pip