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8 commits

Author SHA1 Message Date
6db73873e7
jw.pkg: Fix "make check" static code check fallout

The previous commits have put rules for linting and formatting via ruff, yapf, mypy and pyright into place. They are checked with the make check target, and this commit adds the fixes for the target to succeed.

It does some refactoring where type checking dug up dirty bits, and also adds lots of churn in the Python code. To a good deal, that's owed to mere formatting changes. It would have been better to seperate those from syntax and refactoring fixes into multiple commits, so that the interesting changes don't drown in the formatting nose. However, that would have been a lot of additional work only to be thrown away by later commits, hence this commit has a big diff in one piece. The size of the diff is regrettable but hopefully a one-off: What it buys is automatic format checking for CI and predictble formats for smaller diffs in the future.

Rules that "make check" enforces are, in the following order

- Syntax checkers:

- ruff check . - mypy . - pyright

- Format check:

- yapf --diff --recursive .

The refactoring includes:

- Turn the Result class into a more elaborate object, capable of doing more heavy lifting around stderr and stdout decoding, summarizing outcome, and matching error strings.
Aside from fixing broken type checks, this also removes lots of boilerplate calling code which is currently used for handling possible call outcome scenarios. Trying to access an inexistent, decoded string should raise a meaningful exception by itself now, which removes lots of code with case distinctions.

- Fix Cmd type hierarchy:

- Add the AbstractCmd class above Cmd. This is necessary because the checker rightfully complains it can't instantiate a Cmd instance where constructor arguments were needed. They never were, but the type used at the instantiating code's location in jw.pkg.App so claims.
- Lots of sub- and sub-subcommands are derived from the base class of the invoking command. That provides some properties shared across the ancestor hierarchy of a command, but is semantically unsound. Fix that by introducing jw.pkg.BaseCmd class as a place to provide basic helpers shared across all commands used in a jw.pkg.App's context, and derive all command classes from that afresh. The parent command is still reachable via a common parent property.

Formatting changes are conforming to PEP-8, mostly, with minor tweaks. All in all they include the following changes.

- Remove # -*- coding: utf-8 -*-

The line was needed by Python 2 which is not supported anylonger. For Python 3, the default encoding is UTF-8, anyway.
- Allow to run "make py-format" without having it produce any changes. It's basically "yapf --in-place --recursive ." with some code style settings, see conf/topdir/pyproject.toml. The settings may be debatable. I've had custom tweaks in place on that target, too, but then again, IDEs would have more hassle to integrate that.

- Introduce a 88 character line length limit

- One import per line, reshuffle them semantically, see [tool.isort] in pyproject.toml.

- Hide imports needed for type-checking only behind

if TYPE_CHECKING
- Spaces around assignments accounts for much churn. Having having no spaces in inline parameter list assignments and default parameter values would arguably be more compact where it's useful. On the other hand, I have not found a code formatter which allows spaces around assignments in parameter lists broken into one per line and that's often better than a wall of text.
- Add two spaces before # export, as this seems to be mandated by PEP-8

- Use single quotes by default

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-05-31 18:20:38 +02:00
4e1ec7eaf6
lib.Distro._select() -> _select_by_name()

Rename ._select() to _select_by_name() in Distro and its subclasses. Don't rename .select() itself, because it's going to be a broader interface supporting more select criteria than just package names.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-04-21 21:52:09 +02:00
54aecff8e4 lib.ExecContext.run(), .sudo(): Rename env

The name of the env parameter to ExecContext.run() and .sudo() is not descriptive enough for which environment is supposed to be modified and how, so rename and split it up as follows:

- .run(): env -> mod_env

- .sudo(): env -> mod_env_sudo and mod_env_cmd

The parameters have the following meaning:

- "mod_env*" means that the environment is modified, not replaced

- "mod_env" and "mod_env_cmd" modify the environment "cmd" runs in

- "mod_env_sudo" modifies the environment sudo runs in

Fix the fallout of the API change all over jw-pkg.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-04-19 14:36:50 +02:00
888c0495ec lib.base: Add module

Add lib.base to provide basic definitions.

For now, move the definiions of Result, Input and InputMode from ExecContext into lib.base. Having to import them from the ExecContect module is too heavy-handed for those simple types.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-04-16 12:57:04 +02:00
824de4eca4 lib.distros.*.Distro: Align PM prototypes

Make all backend package manager prototypes have the same arguments:

yum(self, args: list[str], verbose: bool=True, sudo: bool=True)

This also implies having them behave equally verbose, unless otherwise specified by the caller. This changes the default for Debian.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-03-16 14:53:58 +01:00
525fa34387 lib.pm: Add parameter ec: ExecContext to functions

Functions in lib.pm (i.e. run_dpkg(), run_rpm() and friends) also get an ExecContext-type parameter. Use them in lib/distros/*/Distro.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-03-06 19:02:22 +01:00
3e897f4df8 lib.Distro, ExecContext: Add classes, refactor lib.distro

The code below lib.distro, as left behind by the previous commit, is geared towards being directly used as a command-line API. This commit introduces the abstract base class Distro, a proxy for distribution-specific interactions. The proxy abstracts distro specifics into an API with proper method prototypes, not argparse.Namespace contents, and can thus be more easily driven by arbitrary code.

The Distro class is initialized with a member variable of type ExecContext, another new class introduced by this commit. It is designed to abstract the communication channel to the distribution instance. Currently only one specialization exists, Local, which interacts with the distribution and root file system it is running in, but is planned to be subclassed to support interaction via SSH, serial, chroot, or chains thereof.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-03-06 14:56:46 +01:00
7e7cee6d11 cmds.distro: Move all modules to lib

Functions abstracting the distribution are not only needed in the context of the distro subcommand, but also by other code, so make the bulk of the code abstracting the distribution available in some place more universally useful than below cmds.distro.

This commit leaves the source files mostly unchanged. They are only patched to fix import paths, so that functionality is preserved. Refactoring the code from command-line API to library API will be done by the next commit.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-03-06 12:06:28 +01:00