Moving the preview features to top-level concepts and pushing the
pip-compatible interface down.
e.g.
<img width="291" alt="Screenshot 2024-06-27 at 7 03 48 AM"
src="500ad97d-899d-4051-b59d-e74786b3a45f">
## Summary
Given:
```text
numpy >=1.26 ; python_version >= '3.9'
numpy <1.26 ; python_version < '3.9'
```
When resolving for Python 3.8, we need to narrow the `requires-python`
requirement in the top branch of the fork, because `numpy >=1.26` all
require Python 3.9 or later -- but we know (in that branch) that we only
need to _solve_ for Python 3.9 or later.
Closes https://github.com/astral-sh/uv/issues/4669.
## Summary
This is required to solve https://github.com/astral-sh/uv/issues/4669,
because the `Requires-Python` version can now vary across a resolution.
For example, within certain forks, we might have a more narrow range,
which would allow us to use distributions that would not be allowed for
the global resolution.
This should be fine because `requires-python` is part of the package
metadata, so it should be consistent between files within a package
version. As such, there shouldn't be any risk that we incorrectly
prioritize distributions by omitting this information.
(To be more specific, the risk is something like: we prioritize some
wheel over a source distribution within a package-version, so we don't
track the source distribution at all. Then, later, when we choose a
candidate, we see that the wheel doesn't meet the `Requires-Python`
requirement, even though the source distribution _would've_ met it. If
files within a distribution could have varied support, this would be a
real risk.)
I think `--toolchain-preference system` is sufficiently clear and
`--toolchain-preference prefer-system` is excessively verbose. This was
discussed in the original pull request at
https://github.com/astral-sh/uv/pull/4424 but because we had a case for
preferring "installed managed" toolchains I was hesitant to change it.
Now that I've dropped that in #4601, I think we can drop the prefix.
Adds a `toolchain-fetch` option alongside `toolchain-preference` with
`automatic` (default) and `manual` values allowing automatic toolchain
fetches to be disabled (replaces
https://github.com/astral-sh/uv/pull/4425). When `manual`, toolchains
must be installed with `uv toolchain install`.
Note this was previously implemented with `if-necessary`, `always`,
`never` variants but the interaction between this and
`toolchain-preference` was too confusing. By reducing to a binary
option, things should be clearer. The `if-necessary` behavior moved to
`toolchain-preference=installed`. See
https://github.com/astral-sh/uv/pull/4601#discussion_r1657839633 and
https://github.com/astral-sh/uv/pull/4601#discussion_r1658658755
Closes https://github.com/astral-sh/uv/issues/4476
Originally, this used the changes in #4642 to invoke `main()` from a
`uvx` binary. This had the benefit of `uvx` being entirely standalone at
the cost of doubling our artifact size. We think that's the incorrect
trade-off.
Instead, we assume `uvx` is always next to `uv` and create a tiny binary
(<1MB) that invokes `uv` in a child process. This seems preferable to a
`cargo-dist` alias because we have more control over it. This binary
should "just work" for all of our cargo-dist distributions and
installers, but we'll need to add a new entry point for our PyPI
distribution. I'll probably tackle support there separately?
```
❯ ls -lah target/release/uv target/release/uvx
-rwxr-xr-x 1 zb staff 31M Jun 28 23:23 target/release/uv
-rwxr-xr-x 1 zb staff 452K Jun 28 23:22 target/release/uvx
```
This includes some small overhead:
```
❯ hyperfine --shell=none --warmup=100 './target/release/uv tool run --help' './target/release/uvx --help' --min-runs 2000
Benchmark 1: ./target/release/uv tool run --help
Time (mean ± σ): 2.2 ms ± 0.1 ms [User: 1.3 ms, System: 0.5 ms]
Range (min … max): 2.0 ms … 4.0 ms 2000 runs
Warning: Statistical outliers were detected. Consider re-running this benchmark on a quiet system without any interferences from other programs. It might help to use the '--warmup' or '--prepare' options.
Benchmark 2: ./target/release/uvx --help
Time (mean ± σ): 2.9 ms ± 0.1 ms [User: 1.7 ms, System: 0.9 ms]
Range (min … max): 2.8 ms … 4.2 ms 2000 runs
Warning: Statistical outliers were detected. Consider re-running this benchmark on a quiet system without any interferences from other programs. It might help to use the '--warmup' or '--prepare' options.
Summary
./target/release/uv tool run --help ran
1.35 ± 0.09 times faster than ./target/release/uvx --help
```
I presume there may be some other downsides to a child process? The
wrapper is a little awkward. We could consider `execv` but this is
complicated across platforms. An example implementation of that over in
[monotrail](433af5aed9/crates/monotrail/src/monotrail.rs (L764-L799)).
## Summary
I ended up needing this for https://github.com/astral-sh/uv/issues/4664
but I think it's a good change more broadly. We should be able to share
this cached information across operations within a given invocation.
## Summary
These are changing in one of my branches but I can't tell _what's_
changing. Some tests include the lock, but others don't. This PR adds it
for all successful resolves in the suite.
## Summary
You can now add `managed = false` under `[tool.uv]` in a
`pyproject.toml` to explicitly opt out of the project and workspace
APIs.
If a project sets `managed = false`, we will (1) _not_ discover it as a
workspace root, and (2) _not_ discover it as a workspace member (similar
to using `exclude` in the workspace parent).
Closes https://github.com/astral-sh/uv/issues/4551.
## Summary
This doesn't actually change any behaviors, but it does make it a bit
easier to solve #4669, because we don't have to support "version
narrowing" for the non-`RequiresPython` variants in here. Right now, the
semantics are kind of muddied, because the `target` variant is
_sometimes_ interpreted as an exact version and sometimes as a lower
bound.
## Summary
`GitDatabase::contains` previously only parsed the commit to see if it
was a valid hash and didn't verify if the commit existed in the object
database. This led to the database never being updated.
Resolves https://github.com/astral-sh/uv/issues/4378.
## Test Plan
Added a test that fails without this change.
It's hard to talk about solve state and resolver state, so i'm renaming
them to fork state and resolver state, indicating the hierarchy between
more directly.
## Summary
Closes https://github.com/astral-sh/uv/issues/4688.
## Test Plan
```
❯ cargo run tool install ruff
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
Running `target/debug/uv tool install ruff`
warning: `uv tool install` is experimental and may change without warning.
Resolved 1 package in 136ms
Installed 1 package in 3ms
+ ruff==0.5.0
No entrypoints to install for tool `ruff`
```
## Summary
Packages that provide scripts that _aren't_ Python entrypoints need to
respected in `uv tool install`. For example, Ruff ships a script in
`ruff-0.5.0.data/scripts`.
Unfortunately, the `.data` directory doesn't exist in the virtual
environment at all (it's removed, per the spec, after install). So this
PR changes the entry point detection to look at the `RECORD` file, which
is the only evidence that the scripts were installed.
Closes https://github.com/astral-sh/uv/issues/4691.
## Test Plan
`cargo run uv tool install ruff` (snapshot tests to-come)
## Summary
Resolves#4483Resolves#4484
## Test Plan
`cargo test`
```sh
❯ cargo run -- toolchain dir
warning: `uv toolchain dir` is experimental and may change without warning.
/Users/ahmedilyas/Library/Application Support/uv/toolchains
❯ cargo run -- tool dir
warning: `uv tool dir` is experimental and may change without warning.
/Users/ahmedilyas/Library/Application Support/uv/tools
```
## Summary
I think this may have just been a typo.
Closes https://github.com/astral-sh/uv/issues/4692.
## Test Plan
Run `cargo run tool install flask --force --reinstall` repeatedly.
## Summary
I noticed that `init_environment` and `find_interpreter` were both
calling `find_environment`, which seemed like a code smell to me.
Instead, `find_interpreter` now returns either a compatible environment
or an interpreter (if no compatible environment was found).
Additionally, `interpreter_meets_requirements` now no longer validates
`requires-python` if `--python` or `.python-version` is set. Instead, we
warn, which matches the behavior we get when creating a new environment
at the bottom of `find_interpreter`.
In total, I think this makes the data flow in project interpreter
discovery less repetitive and easier to reason about.
## Summary
This should both make it faster to solve forks (since we have a guess
for a valid resolution, and will bias towards packages we've already
fetched) and improve consistency between forks.
Closes https://github.com/astral-sh/uv/issues/4617.
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## Summary
resolves https://github.com/astral-sh/uv/issues/4651
(pruning needs to happen at the parent level so that the number of
children being used to figure out the output is correct)
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
added a test that would've caught this bug 🌵
<!-- How was it tested? -->
## Summary
`remove_edge` will invalidate the last index in the graph, so we need to
ensure that each index we look at is "earlier" than the last.
Co-authored-by: bluss <bluss@users.noreply.github.com>
## Summary
When a constraint is applied to a requirement with a marker, the marker
needs to be propagated to the constraint.
If both the constraint and the requirement have a marker, they need to
be merged together (via `and`).
Closes https://github.com/astral-sh/uv/issues/4575.
## Summary
This PR dodges some of the bigger issues raised by
https://github.com/astral-sh/uv/pull/4554 and
https://github.com/astral-sh/uv/pull/4555 by _not_ changing any of the
bigger semantics around syncing and instead merely changing virtual
workspace roots to sync all packages in the workspace (rather than
erroring due to being unable to find a project).
Closes#4541.
