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pip list isn't available on pip less than 1.3 so make a fallback (#4947)

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This commit is contained in:
Toshio Kuratomi 2016-09-20 11:02:14 -07:00 committed by Matt Clay
parent b18c22f69b
commit a8fbdcd80d
1 changed files with 27 additions and 2 deletions
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29
lib/ansible/modules/packaging/language/pip.py
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@ -424,7 +424,6 @@ def main():
if requirements:
cmd += ' -r %s' % requirements
if module.check_mode:
if extra_args or requirements or state == 'latest' or not name:
module.exit_json(changed=True)
@ -438,8 +437,34 @@ def main():
changed = False
if name:
# Pip spits an upgrade notice to stdout that we have to get rid of
pkg_list = [p for p in out.split('\n') if not p.startswith('You are using') and not p.startswith('You should consider') and p]
if pkg_cmd.endswith(' freeze') and ('pip' in name or 'setuptools' in name):
# Older versions of pip (pre-1.3) do not have pip list.
# pip freeze does not list setuptools or pip in its output
# So we need to get those via a specialcase
if 'setuptools' in name:
try:
import setuptools
except ImportError:
# Could not import, assume that it is not installed
pass
else:
formatted_dep = 'setuptools==%s' % setuptools.__version__
pkg_list.append(formatted_dep)
out += '%s\n' % formatted_dep
if 'pip' in name:
try:
import pkg_resources
except ImportError:
# Could not import pkg_resources. pip requires
# pkg_resources so assume that it is not installed
pass
else:
formatted_dep = 'pip==%s' % pkg_resources.get_distribution('pip').version
pkg_list.append(formatted_dep)
out += '%s\n' % formatted_dep
for pkg in name:
is_present = _is_present(pkg, version, pkg_list, pkg_cmd)
if (state == 'present' and not is_present) or (state == 'absent' and is_present):