## Summary
I think this is a much clearer name for this concept: the set of
"versions" of a given wheel or source distribution. We also use
"Manifest" elsewhere to refer to the set of requirements, constraints,
etc., so this was overloaded.
## Summary
We have a heuristic in `File` that attempts to detect whether a URL is
absolute or relative. However, `contains("://")` is prone to false
positive. In the linked issues, the URLs look like:
```
/packages/5a/d8/4d75d1e4287ad9d051aab793c68f902c9c55c4397636b5ee540ebd15aedf/pytz-2005k.tar.bz2?hash=597b596dc1c2c130cd0a57a043459c3bd6477c640c07ac34ca3ce8eed7e6f30c&remote=4d75d1e428/pytz-2005k.tar.bz2 (sha256)=597b596dc1c2c130cd0a57a043459c3bd6477c640c07ac34ca3ce8eed7e6f30c
```
Which is relative, but includes `://`.
Instead, we should determine whether the URL has a _scheme_ which
matches the `Url` crate internally.
Closes https://github.com/astral-sh/uv/issues/2899.
## Summary
Right now, the path-based wheel cache just looks at the symlink to the
archives directory, checks the timestamp on it, and continues with that
symlink as long as the timestamp is up-to-date.
The HTTP-based wheel meanwhile, uses an intermediary `.http` file, which
includes the HTTP caching information. The `.http` file's payload is
just a path pointing to an entry in the archives directory.
This PR modifies the path-based codepaths to use a similar cache file,
which stores a timestamp along with a path to the archives directory.
The main advantage here is that we can add other data to this cache file
(namely, hashes in the future).
## Test Plan
Beyond existing tests, I also verified that this doesn't require a
version bump:
```
git checkout main
cargo run pip install ~/Downloads/zeal-0.0.1-py3-none-any.whl --cache-dir baz --reinstall
git checkout charlie/manifest
cargo run pip install ~/Downloads/zeal-0.0.1-py3-none-any.whl --cache-dir baz --reinstall
cargo run pip install ~/Downloads/zeal-0.0.1-py3-none-any.whl --cache-dir baz --reinstall --refresh
```
## Summary
I think this is kind of just an oversight. If a wheel is available via
`--find-links`, and the index is "local", we never find it in the cache.
## Test Plan
`cargo test`
## Summary
In all cases, we unzip these immediately after returning. By moving the
unzipping into the database, we can remove a bunch of code (coming in a
separate PR), and pave the way for hash-checking, since hash generation
will _also_ happen in the database, and splitting the caching layers
across the database and the unzipper creates complications.
Closes#2863.
With pubgrub being fast for complex ranges, we can now compute the next
n candidates without taking a performance hit. This speeds up cold cache
`urllib3<1.25.4` `boto3` from maybe 40s - 50s to ~2s. See docstrings for
details on the heuristics.
**Before**

**After**

---
We need two parts of the prefetching, first looking for compatible
version and then falling back to flat next versions. After we selected a
boto3 version, there is only one compatible botocore version remaining,
so when won't find other compatible candidates for prefetching. We see
this as a pattern where we only prefetch boto3 (stack bars), but not
botocore (sequential requests between the stacked bars).

The risk is that we're completely wrong with the guess and cause a lot
of useless network requests. I think this is acceptable since this
mechanism only triggers when we're already on the bad path and we should
simply have fetched all versions after some seconds (assuming a fast
index like pypi).
---
It would be even better if the pubgrub state was copy-on-write so we
could simulate more progress than we actually have; currently we're
guessing what the next version is which could be completely wrong, but i
think this is still a valuable heuristic.
Fixes#170.
## Summary
Is this, perhaps, not totally necessary? It doesn't show up in any
fixtures beyond those that I added recently.
Closes https://github.com/astral-sh/uv/issues/2846.
## Summary
Demonstrates some suboptimal behavior in how we handle invalid metadata,
which are fixed in https://github.com/astral-sh/uv/pull/2834.
The included wheels were modified by-hand to include invalid structures.
Batch prefetching needs more information from the candidate selector, so
i've split `select` into methods. Split out from #2452. No functional
changes.
## Summary
In working on `--require-hashes`, I noticed that we're missing some
incompatibility tracking for `--find-links` distributions. Specifically,
we don't respect `--no-build` or `--no-binary`, so if we select a wheel
due to `--find-links`, we then throw a hard error when trying to build
it later (if `--no-binary` is provided), rather than selecting the
source distribution instead.
Closes https://github.com/astral-sh/uv/issues/2827.
## Summary
If we're given a Git reference like `20240222`, we currently treat it as
a short commit hash. However... it _could_ be a branch or a tag. This PR
improves the Git reference logic to ensure that ambiguous references
like `20240222` are handled appropriately, by attempting to extract it
as a branch, then a tag, then a short commit hash.
Closes https://github.com/astral-sh/uv/issues/2772.
## Summary
Upgrading `rs-async-zip` enables us to support data descriptors in
streaming. This both greatly improves performance for indexes that use
data descriptors _and_ ensures that we support them in a few other
places (e.g., zipped source distributions created in Finder).
Closes#2808.
## Summary
This partially revives https://github.com/astral-sh/uv/pull/2135 (with
some modifications) to enable users to opt-in to looking for packages
across multiple indexes.
The behavior is such that, in version selection, we take _any_
compatible version from a "higher-priority" index over the compatible
versions of a "lower-priority" index, even if that means we might accept
an "older" version.
Closes https://github.com/astral-sh/uv/issues/2775.
## Summary
This was an oversight in the `-r pyproject.toml` refactor. We can't
enforce unused extras if we have a source tree. We made the correct
changes to `pip compile`, but not `pip install`. This PR just mirrors
those changes to `pip install`, and adds a few tests.
Closes https://github.com/astral-sh/uv/issues/2801.
We don't know what kind of error the OS gives us on `try_lock_exclusive`
with an already locked file, so we assume all those errors are an
already locked file and call `lock_exclusive`.
For example the windows error:
```
Os {
code: 33,
kind: Uncategorized,
message: "The process cannot access the file because another process has locked a portion of the file.",
}
```
Fixes#2767
## Summary
Rather than storing the `redirects` on the resolver, this PR just
re-uses the "convert this URL to precise" logic when we convert to a
`Resolution` after-the-fact. I think this is a lot simpler: it removes
state from the resolver, and simplifies a lot of the hooks around
distribution fetching (e.g., `get_or_build_wheel_metadata` no longer
returns `(Metadata23, Option<Url>)`).
## Summary
I noticed in #2769 that I was now stripping `.git` suffixes from Git
URLs after resolving to a precise commit. This PR cleans up the internal
caching to use a better canonical representation: a `RepositoryUrl`
along with a `GitReference`, instead of a `GitUrl` which can contain
non-canonical data. This gives us both better fidelity (preserving the
`.git`, along with any casing that the user provided when defining the
URL) and is overall cleaner and more robust.
## Summary
This PR leverages our lookahead direct URL resolution to significantly
improve the range of Git URLs that we can accept (e.g., if a user
provides the same requirement, once as a direct dependency, and once as
a tag). We did some of this in #2285, but the solution here is more
general and works for arbitrary transitive URLs.
Closes https://github.com/astral-sh/uv/issues/2614.
Originally a regression test for #2779 but we found out that there's
some weird behavior where different `anyio` versions were preferred
based on the platform.
Addresses panic introduced in #2596 and reported in
https://github.com/astral-sh/uv/issues/2763#issuecomment-2030674936
When there are multiple versions of a package available, we remove the
existing packages before installing the resolved version to "fix" the
environment. We must remove all of the package versions and reinstall
because removing _any_ of the package versions could break the others.
Since reinstalls require a pull from the remote, this broke a contract
between the resolver and the planner which must always agree on which
packages should come from the remote. This further demonstrates that we
should be constructing the install plan with more concrete knowledge
from the resolver (i.e. `ResolvedDist` instead of `Requirement`) to
avoid having to manually ensure logic matches.
## Test plan
Fails on `main` with panic succeeds on branch
```
uv venv --seed
source .venv/bin/activate
pip install anyio==3.7.0 --ignore-installed
pip install anyio==4.0.0 --ignore-installed
cargo run -- pip install anyio black -v
```