## Summary
resolves https://github.com/astral-sh/uv/issues/3272
added it as a new subcommand rather than a flag on an existing
command since that seems more consistent with `cargo tree` + cleaner
code organization, but can make changes if it's preferred the other way.
Exposes the option added in #4416. Adds `--toolchain-preference` and
`tool.uv.toolchain-preference` to configure if system or managed
toolchains are preferred. Users can opt-out of managed toolchains or
system toolchains entirely as well.
Restores the `PythonEnvironment::find` API which was removed a while
back in favor of `Toolchain::find`. As mentioned in #4416, I'm
attempting to separate the case where you want an active environment
from the case where you want an installed toolchain in order to create
environments.
I wanted to drop `EnvironmentPreference` from `Toolchain::find` and just
have us consistently consider (or not consider) virtual environments
when discovering toolchains for creating environments. Unfortunately
this caused a few things to break so I reverted that change and will
explore it separately. Because I was exploring that change, there are
some minor changes to the `Toolchain` API here.
Adds support for the toolchain discovery preferences outlined in
https://github.com/astral-sh/uv/issues/4198 but we don't expose this to
users yet, I'll do that next to make it easier to review.
I've made some refactors in the toolchain discovery implementation to
enable this behavior and move us towards clearer abstractions. There's
still remaining work here, but I'd prefer tackle things in follow-ups
instead of expanding this pull request. I plan on opening a couple
before merging this.
I'd like to shift the public toolchain API to focus on discovering
either an **environment** or a **toolchain**. The first would be used by
commands that operate on an environment, while the latter would be used
by commands that just need an interpreter to create environments. I
haven't changed this here, but some of the refactors are in preparation
for supporting this idea.
In brief:
- We now allow different ordering of installed toolchain discovery based
on a `ToolchainPreference` type. This is the type we will expose to
users.
- `SystemPython` was changed into an `EnvironmentPreference` which is
used to determine if we should prefer virtual or system Python
environments.
- We drop the whole `ToolchainSources` selection concept, it was
confusing and the error messages from it were awkward. Most of the
functionality is now captured by the preference enums, but you can't do
things like "only find a toolchain from the parent interpreter" as
easily anymore.
Previously, distributions created through `Source::Workspace` would have
the absolute path as lock path. This didn't cause any problems, since in
`Urls` we would later overwrite those urls with the correct one created
from being workspace members by path.
Changing the order surfaced this. This change emits the correct lock
path. I've manually checked the difference with `dbg!`, this is not
observable on main, but on the diverging urls branch it fixes lockfile
creation.
When a fork is created from a list of dependencies, we were previously
adding all other sibling dependencies to every fork created. But this
isn't actually quite right, since the fork created is always created by
some marker expression. And while it is definitively disjoint from any
directly conflicting dependency specification, it is also possibly
disjoint with other dependencies. For example, as reported in #4414:
```toml
dependencies = [
"anyio==4.4.0 ; python_version >= '3.12'",
"anyio==4.3.0 ; python_version < '3.12'",
"b1 ; python_version >= '3.12'",
"b2 ; python_version < '3.12'",
]
```
The first two `anyio` requirements are conflicting with non-overlapping
marker expressions, and so a fork is created. Prior to this commit,
*both* `b1` and `b2` would be added to each fork. But of course, `b2` is
impossible in the `anyio==4.4.0` fork because of disjoint marker
expressions.
So in this commit, we specifically filter out any sibling dependencies
that could find their way into a fork that have disjoint markers with
that fork. We are careful to do this both when a new fork is created
from an existing set of dependencies, and when adding new dependencies
to a fork.
Fixes#4414
## Summary
After this change, `uv add` will try to use `tool.uv.sources` for all
source requirements. If a source cannot be resolved, i.e. an ambiguous
Git reference is provided, it will error. Git references can be
specified with the `--tag`, `--branch`, or `--rev` arguments. Editables
are also supported with `--editable`.
Users can opt-out of `tool.uv.sources` support with the `--raw` flag,
which will force uv to use `project.dependencies`.
Part of https://github.com/astral-sh/uv/issues/3959.
To support diverging urls, we have to check urls when adding
dependencies (after forking). To prepare for this, i've moved adding
dependencies for the current version to
`SolveState::add_package_version_dependencies` and removed the
duplication when checking for self-dependencies.
This changed is joined with a change in pubgrub
(https://github.com/astral-sh/pubgrub/pull/27) that simplifies the same
code path.
## Summary
Implements `uv add foo --workspace`, which adds `foo` as a workspace
dependency with the corresponding `tool.uv.sources` entry.
Part of https://github.com/astral-sh/uv/issues/3959.
Specifically, these are emitted when requirements fail to satisfy
`Requires-Python` or the markers associated with the current fork in the
resolver.
Closes#4373
Closes#4380
This is the same logic as `should_stop_discovery` but I changed the log
level and duplicated it because I don't really want that method to be
public. Maybe it should be though?
As in #4360, updates the uv project CLI to respect `.python-version`
files as default Python version requests. Additionally, updates project
interpreter discovery to fetch managed toolchains as in `uv venv
--preview`.
It was becoming problematic that the virtual environment test context
diverged from the other one i.e. we had to implement filtering twice.
This combines the contexts and tweaks the `TestContext` API and
filtering mechanisms for Python versions. Combined with my previous
changes to the test context at #4364 and
https://github.com/astral-sh/uv/pull/4368 this finally unblocks the
snapshots for test cases in #4360 and
https://github.com/astral-sh/uv/pull/4362.
## Summary
Make the git commit/date part of the version string matched in
cache_prune optional, so that the test also works correctly when uv is
built from an unpacked release tarball rather than a git repository.
Fixes#4374
## Test Plan
Ran `cargo test` inside the git repository and inside unpacked archive
for `0.2.12` release with the patch applied on top.
## Summary
Adds a `--no-clean` flag to `uv sync` that keeps extraneous
installations. This is the default in `uv run` and `uv add`, but not in
`uv sync` or `uv remove`. This means you need to run an explicit `uv
sync/remove` to clean the virtual environment.
Extends new filters for interpreter paths to apply to tests with
multiple Python versions. Adds patch version filtering for them as well,
which is needed for #4360 tests.
Extends #4364 automatically adding filters to the test context for
additional test virtual environments.
It turns out that the `pip sync` tests were really on the loose with
their virtual environment creation and it was difficult to use the new
helpers because they require mutability and the tests had immutable
borrows to extend the filters 😭. I refactored the tests to just reset
the environment.
