Now that we don't need to worry about python-2.4 and 2.5, we can make
some improvements to the way AnsiballZ handles modules.
* Change AnsiballZ wrapper to use import to invoke the module
We need the module to think of itself as a script because it could be
coded as:
main()
or as:
if __name__ == '__main__':
main()
Or even as:
if __name__ == '__main__':
random_function_name()
A script will invoke all of those. Prior to this change, we invoked
a second Python interpreter on the module so that it really was
a script. However, this means that we have to run python twice (once
for the AnsiballZ wrapper and once for the module). This change makes
the module think that it is a script (because __name__ in the module ==
'__main__') but it's actually being invoked by us importing the module
code.
There's three ways we've come up to do this.
* The most elegant is to use zipimporter and tell the import mechanism
that the module being loaded is __main__:
* 5959f11c9d/lib/ansible/executor/module_common.py (L175)
* zipimporter is nice because we do not have to extract the module from
the zip file and save it to the disk when we do that. The import
machinery does it all for us.
* The drawback is that modules do not have a __file__ which points
to a real file when they do this. Modules could be using __file__
to for a variety of reasons, most of those probably have
replacements (the most common one is to find a writable directory
for temporary files. AnsibleModule.tmpdir should be used instead)
We can monkeypatch __file__ in fom AnsibleModule initialization
but that's kind of gross. There's no way I can see to do this
from the wrapper.
* Next, there's imp.load_module():
* https://github.com/abadger/ansible/blob/340edf7489/lib/ansible/executor/module_common.py#L151
* imp has the nice property of allowing us to set __name__ to
__main__ without changing the name of the file itself
* We also don't have to do anything special to set __file__ for
backwards compatibility (although the reason for that is the
drawback):
* Its drawback is that it requires the file to exist on disk so we
have to explicitly extract it from the zipfile and save it to
a temporary file
* The last choice is to use exec to execute the module:
* https://github.com/abadger/ansible/blob/f47a4ccc76/lib/ansible/executor/module_common.py#L175
* The code we would have to maintain for this looks pretty clean.
In the wrapper we create a ModuleType, set __file__ on it, read
the module's contents in from the zip file and then exec it.
* Drawbacks: We still have to explicitly extract the file's contents
from the zip archive instead of letting python's import mechanism
handle it.
* Exec also has hidden performance issues and breaks certain
assumptions that modules could be making about their own code:
http://lucumr.pocoo.org/2011/2/1/exec-in-python/
Our plan is to use imp.load_module() for now, deprecate the use of
__file__ in modules, and switch to zipimport once the deprecation
period for __file__ is over (without monkeypatching a fake __file__ in
via AnsibleModule).
* Rename the name of the AnsiBallZ wrapped module
This makes it obvious that the wrapped module isn't the module file that
we distribute. It's part of trying to mitigate the fact that the module
is now named __main)).py in tracebacks.
* Shield all wrapper symbols inside of a function
With the new import code, all symbols in the wrapper become visible in
the module. To mitigate the chance of collisions, move most symbols
into a toplevel function. The only symbols left in the global namespace
are now _ANSIBALLZ_WRAPPER and _ansiballz_main.
revised porting guide entry
Integrate code coverage collection into AnsiballZ.
ci_coverage
ci_complete
* win_chocolatey: refactor module to fix bugs and add new features
* Fix some typos and only emit install warning not in check mode
* Fixes when testing out installing chocolatey from a server
* Added changelog fragment
* Enable check_mode in command module
This only works if supplying creates or removes since it needs
something to base the heuristic off. If none are supplied it will just
skip as usual.
Fixes#15828
* Add documentation for new check_mode behavior
* First pass at making 'private' work on include_role, imports are always public
* Prevent dupe task execution and overwriting handlers
* New functionality will use public instead of deprecated private
* Add tests for public exposure
* Validate vars before import/include to ensure they don't expose too early
* Add porting guide docs about public argument and change to import_role
* Add additional docs about public and vars exposure to module docs
* Insert role handlers at parse time, exposing them globally
* Revert "Account for empty string regexp in lineinfile (#41451)"
This reverts commit 4b5b4a760c.
* Use context managers for interacting with files
* Store line and regexp parameters in a variable
* Add warning when regexp is an empty string
* Remove '=' from error messages
* Update warning message and add changelog
* Add tests
* Improve warning message
Offer an equivalent regexp that won't trigger the warning.
Update tests to match new warning.
* Add porting guide entry for lineinfile change
* Add docs detailing how to convert many with_X style loops to use loop and filters. Fixes#40727
* Switch lookup used in query vs lookup comparison, to not recommend use of nested lookup
* Improve docs based on feedback
* Move k8s modules to dynamic backend
* update required openshift version
* update -> patch
* use new dynamic client exceptions
* style
* guard urllib3 import
* guard ansibleerror import
* give more information about error cause
* format in variable
* style
* rename tests
* Search for provided kind in a few more places to match old behavior, properly handle failure
* make common code use fail instead of fail_json, to work for lookup plugins as well
* update docs
* move openshift_raw tests into k8s tests
* fix typo
* Use diff of response and resource to determine change, don't do any checking client-side before making requests
* remove duplicate yaml blocks
* Update porting guide for k8s module
* remove invalid doc refs
* If fuzzy searching finds a resource, update resource_definition to match proper kind and version
* remote unsupported openshift_raw variables
* properly check environment variables when determining auth method:
* Set src in the state functions rather than the toplevel
A good API should only require passing one version of a piece of data
around so do that for src
* Move the rewriting of path into additional_parameter_handling
When the path is a directory we can rewrite the path to be a file inside
of the directory
* Emit a warning when src is used with a state where it should be ignored
The example regarding `include_*` is a bit unclear. First it seems like the v2.4 and v2.5 examples are the same. So I attempted to make the relevant change in the examples more obvious.
label: docsite_pr
* Docs refactor as outlined in https://github.com/ansible/proposals/issues/79. Moves content into 'guides'; refactors TOC; fixes CSS; design tweaks to layout and CSS; fixes generated plugin, CLI and module docs to fix links accodingly; more.
* Adding extra blank line for shippable
Pilou