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Fix pip module to check if requirements already installed

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This updates _is_package_installed() to accept a requirements file
as an argument.  This is used later in main() to check if python libs
specified in a requirements file are already installed.  I updated
main() to consolidate the handling of install/uninstall in a single
block.  This should help if someone wants to remove packages specified
by a requirements file.
This commit is contained in:
Stephen Fromm 2012-12-01 19:56:42 -08:00
parent ca079935f2
commit 648240ae36
1 changed files with 25 additions and 22 deletions
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47
pip
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@ -84,8 +84,16 @@ def _ensure_virtualenv(module, env, virtualenv):
return _run('%s %s' % (virtualenv, env))
def _is_package_installed(name, pip, version=None):
rc, status_stdout, status_stderr = _run('%s freeze' % pip)
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()
@ -160,18 +168,6 @@ def main():
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)
rc += rc_pip
out += out_pip
err += err_pip
changed = ((_did_install(out) and state == 'present') or
(not _did_install(out) and state == 'absent'))
if name and state == 'latest':
cmd = '%s %s %s --upgrade' % (pip, command_map[state], name)
@ -183,19 +179,22 @@ def main():
changed = 'Successfully installed' in out_pip
elif name:
elif name or requirements:
installed = _is_package_installed(name, pip, version)
installed = _is_package_installed(name, pip, version, requirements)
changed = ((installed and state == 'absent') or
(not installed and state == 'present'))
if changed:
if state == 'present':
full_name = _get_full_name(name, version)
else:
full_name = name
cmd = '%s %s %s' % (pip, command_map[state], full_name)
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'
@ -207,6 +206,10 @@ def main():
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