- Do not silently ignore malformed pip requirements files.
- Properly reports changed when removing packages.
- "latest" i.e. --upgrade is *not* incompatible with requirements files.
- Less branchy, simpler logic.
- Removed pointless variable "initializations", Python doesn't need that.
Other code simplifications.
- Fun fact; pip install is (kind of) case insensitive, pip freeze is not.
So, 'sqlalchemy' will be reported as installed by install, but missing
by freeze.
The perhaps controversial change and the one that led to finding /
fixing above issues...
Instead of adding command parameters 'index', and 'find', and 'mirrors',
and etc. Added 'extra_args' which are passed onto pip.
The use case for --index-url is having a private pypi repo, like
http://pypi.python.org/pypi/localshop, to which you publish private
packages. I'm sure most every pip option has a use case for someone.
extra_args handles all those. Can reserve ansible command parameters for
the most common.
Tested with pip 1.1.
Move operations that are dependant on a remote branch under a if
is_remote_branch() conditional. While at it, remove assignment to cmd
string in same block that wasn't used when calling _run().
The git module would not pull in updates to a branch when
version=<branch>. This updates that block to checkout the branch
and then do a git reset --hard <remote>/<branch>. This
should now track updates to a branch.
I hit the following exception because errno is referenced but not imported.
```
fatal: [system01] => failed to parse: Traceback (most recent call last):
File "/root/.ansible/tmp/ansible-1354644532.37-246102819320352/copy", line 782, in <module>
main()
File "/root/.ansible/tmp/ansible-1354644532.37-246102819320352/copy", line 117, in main
module.atomic_replace(dest_tmp, dest)
File "/root/.ansible/tmp/ansible-1354644532.37-246102819320352/copy", line 772, in atomic_replace
if e.errno != errno.EPERM:
NameError: global name 'errno' is not defined
```
In a virtualenv, pip is called just pip. This fixes the pip module to
search for the virtualenv pip first before trying the pip-python and
python-pip variants. Without this, pip module would not install to the
virtualenv when that parameter is provided.
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 ensures we don't litter remote systems with temporary directories
that don't get cleaned up, as well as speeds things up from not having
to touch every node.
