This replaces `mitogen.master.scan_code_imports()` with
`mitogen.imports.codeobj_imports()`. The Python 3.x implementation now uses
`str.find()`, relying on Python >= 3.6 "widecode" format. Behaviour and
semantics should be unchanged. Now implementations are approx
- 1.5 x faster on Python 2.x
- 2 - 3 x faster on Python 3.x
Before
```console
$ ./tests/bench/scan_code
scan_code_imports python2.7 100 loops, best of 3: 3.19 msec per loop
scan_code_imports python3.9 500 loops, best of 5: 685 usec per loop
scan_code_imports python3.10 500 loops, best of 5: 727 usec per loop
scan_code_imports python3.11 500 loops, best of 5: 601 usec per loop
scan_code_imports python3.12 500 loops, best of 5: 609 usec per loop
scan_code_imports python3.13 500 loops, best of 5: 586 usec per loop
```
After
```console
codeobj_imports python2.7 1000 loops, best of 3: 1.98 msec per loop
codeobj_imports python3.9 1000 loops, best of 5: 302 usec per loop
codeobj_imports python3.10 1000 loops, best of 5: 297 usec per loop
codeobj_imports python3.11 1000 loops, best of 5: 243 usec per loop
codeobj_imports python3.12 1000 loops, best of 5: 278 usec per loop
codeobj_imports python3.13 1000 loops, best of 5: 259 usec per loop
```
```console
$ uname -a
Darwin kintha 24.6.0 Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:29 PDT
2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6000 arm64
```
```console
$ ./tests/bench/scan_code
scan_code_imports python2.7 100 loops, best of 3: 3.19 msec per loop
scan_code_imports python3.9 500 loops, best of 5: 685 usec per loop
scan_code_imports python3.10 500 loops, best of 5: 727 usec per loop
scan_code_imports python3.11 500 loops, best of 5: 601 usec per loop
scan_code_imports python3.12 500 loops, best of 5: 609 usec per loop
scan_code_imports python3.13 500 loops, best of 5: 586 usec per loop
```
This covers existing behaviours of `mitogen.master.scan_code_imports()` some
of which are relied on, some not, but regardless weren't tested. Notably
- Explicit relative imports return level > 0
- Imports inside `class` and `def` are excluded
- Imports inside other blocks are included
- Python 3.x prunes impossible if/else branches (previously unknown)
It also
- Decouples the test results from the implementation details of the unit test.
- Fixes a missing import
- Fixes at least one Python 2.4 incompatibility (use of with block)
Mitogen was leaving the stdout and stderr of subprocesses in non-blocking
mode. When Python code ran in the remote process created by Mitogen calls such
as `print(long_string)` or `os.stout.write(bigger_than_the_buffer)` sometimes
raised `BlockingIOError`, or similar.
This change
- Removes code in `mitogen.core.Side` that set blocking/non-blocking mode
- Adds blocking/non-blocking control to `os.mitogen.pipe()` and a new
function `mitogen.core.socketpair()`
- Replaces `mitogen.core.set_block` and `mitogen.core.set_nonblock`
with `mitogen.core.set_blocking`, mirroring `os.set_blocking`
- Updates call sites as appropriate
- Adds tests for new functions and arguments
- Adds a regression test for subprocess stdio blocking/non-blocking
fixes#712
In vanilla Ansible >= 12 (ansible-core 2.19)
- ssh connection plugin `verbosity` controls `ssh [-v[v[v]]]`
- config option `DEFAULT_VERBOSITY` controls whether that output is displayed
In vanilla Ansible <= 11 (ansible-core <= 2.18)
- `DEFAULT_VERBOSITY` controls both `ssh` verbosity & display verbositty
As of this change
- Mitogen + Ansible >= 12 behaviour matches vanilla Ansible >= 12.
- Mitogen + Ansible <= 11 behaviour remains unchanged
- `DEFAULT_VERBOSITY` only controls display verbosity.
- Mitogen + Ansible respect the Ansible variable `mitogen_ssh_debug_level`
I've chosen not to retroactively replicate the old vanilla Ansible behaviour
in Mitogen + Ansible <= 11 cases. I'm pretty sure it was an oversight,
rather than a design choice, but Ansible+Mitogen with `ANSIBLE_VERBOSITY=3`
is already very verbose.
fixes#1282
See
- https://docs.ansible.com/ansible/latest/reference_appendices/config.html#default-verbosity
- https://docs.ansible.com/ansible/devel/collections/ansible/builtin/ssh_connection.html#parameter-verbosity
Ansible 12 (ansible-core 2.19) has gained support for specifying an SSH
password, without requiring `sshpass`. It specifies the environment variable
`SSH_ASKPASS` such that `ansible` itself is called.
Mitogen is already able to support this. This change provides test coverage of
the new feature by not installing `sshpass` on macOS runners. when Ansible 12
is under test. Ubuntu runners come with `sshpass` pre-installed.
Required Ansible is also bumped to the latest pre-releases, for relevant
fixes.
Note that tests/ansible/integration/ssh/templated_by_play_taskvar.yml was
previously erroniously being skipped with ansible-core 2.19.0a<N> and
2.19.0b<N>.
fixes#1293
refs #1175
Ansible >= 12 (ansible-core >= 2.19) deprecates `stdout_callback=yaml`,
superceded by `callback_result_format=yaml`. There is a change in behaviour:
`callback_result_format` applies to output of both `ansible-playbook` _and_
`ansible`.
Tests that run `ansible` in a subprocess are now explicitly configured to use
json (even if they don't inspect that output yet) for more assert-able output
across all versions of Ansible.
The Van_* GitHub Actions jobs (corresponding to Tox factor strategy_linear,
environment variable ANSIBLE_STRATEGY=linear) were failing inside Mitogen
modules, which they should not touch. The jobs are intended as a cross
validation of the test suite, they should only fail if Ansible itself has a
problem.
Python 2.7 (distro package) and 3.6 (pyenv managed) jobs run on Ubuntu 22.04.
More recent Pythons (distro or Github provided) run on 24.04.
fixes#1256
Ansible tasks that run locally (e.g. `connection: local`, `delegate_to:
localhost`) must now specify their `ansible_python_interpreter`, typically as
`{{ ansible_playbook_python }}`; otherwise the system Python on the controller
(e.g. `/usr/bin/python`) is likely to be used and this is often outside the
version range supported by the Ansible verison under test. If this occurs then
the symptom is often a failure to import a builtin from
`ansible.module_utils.six.moves`, e.g.
```
fatal: [target-centos6-1]: FAILED! => changed=true
cmd:
- ansible
- -m
- shell
- -c
- local
- -a
- whoami
- -i
- /tmp/mitogen_ci_ansibled3llejls/hosts
- test-targets
delta: '0:00:02.076385'
end: '2025-04-17 17:27:02.561500'
msg: non-zero return code
rc: 8
start: '2025-04-17 17:27:00.485115'
stderr: |-
stderr_lines: <omitted>
stdout: |-
An exception occurred during task execution. To see the full traceback,
use -vvv. The error was: from ansible.module_utils.six.moves import
map, reduce, shlex_quote
```
Previously (and implicitly) used "latest". The tag 2021 is new today, the
image contents have not changed since they were generated in 2021.
They have moved container registry twice since 2021
- #791 Docker -> Amazon Elastic Container Registry (public.ecr.aws/n5z0e8q)
- #1128 Amazon ECR -> GitHub Container Registry (ghcr.io/mitogen-hq)
This commit also removes the last references to ECR.
This adapts PR #740 by @extmind (afe0026890),
which augmented the call to `Connection.get_task_var()` with
`C.config.get_config_value('INTERPRETER_PYTHON'` as a default. Instead this
*replaces* the call to `Connection.get_task_var()`. The aim is greater
simplicity by disentangling templating of a configured interpreter path and
discovery of an interpreter when none is configured. I think this also reduces
the number of times `Connection._get_task_vars()` is called, so reducing the
number of times we do the ugly stack frame inspection.
I've also added test cases.
Co-authored-by: Lars Beckers <lars@extmind.de>
Ansible >= 4 (ansible-core >= 2.11) the SSH plugin has a `timeout` option and
with variable `ansible_ssh_timeout`, but not a `ansible_timeout` variable.
The local plugin has no such option or variable(s). However `ansible_timeout`
is backfilled for all conection plugins, by legacy mechanisms that populate
the play context attribute:
- `ansible.constants.COMMON_CONNECTION_VARS`
- `ansible.constants.MAGIC_VARIABLE_MAPPING`
The `timeout` keyword is for task completion timeout, not connection timeout.
This tightens up our monkey patching `Connection._action` so it's only applied
during `meta: reset_connection` & promptly removed. This fixes "'int' object
has no attribute 'template'" when `ansible.plugins.action.wait_for_connection`
or other code calls `ansible.plugins.connection.ConnectionBase.reset()`.
This could also have switched to `templar=templar` on the temporary action,
rather than `templar=0`, but it's not strictly necessary to fix this bug. I
anticipate other changes doing so soon, to improve interpreter discovery &
templated python interpreter path support.
The code change to support this was already made in transport_config.py, as
part of templated become_user support (commit bf6607e27e, PR #1148). This
commit adds tests to confirm the functionality.
A twist - for the connection option "host" the corresponding legacy
PlayContext attribute is PlayContext.remote_addr. This may be the only case
where a connection option name and the PlayContext attribute name differ.
This is ground work for adding/testing templated hostnames and python
interpreters. The extreme wideness will hopefully be temporary, e.g. by
switching to YAML inventories. The INI inventory plugin doesn't support
multiline host entries.
> 640 K(olumns) should be enough for anyone
> -- Apocryphal, not Bill Gates
Alex Willmer