1f31350...
by
Charlie Marsh <email address hidden>
Recursively allow URL requirements for local dependencies (#2702)
## Summary
This is a trimmed-down version of https://github.com/astral-sh/uv/pull/2684 that only applies to local
source trees for now, which enables workspace-like workflows (whereby
local packages can depend on other local packages at arbitrary depth).
Consider installed packages during resolution (#2596)
Previously, we did not consider installed distributions as candidates
while performing resolution. Here, we update the resolver to use
installed distributions that satisfy requirements instead of pulling new
distributions from the registry.
The implementation details are as follows:
- We now provide `SitePackages` to the `CandidateSelector`
- If an installed distribution satisfies the requirement, we prefer it
over remote distributions
- We do not want to allow installed distributions in some cases, i.e.,
upgrade and reinstall
- We address this by introducing an `Exclusions` type which tracks
installed packages to ignore during selection
- There's a new `ResolvedDist` wrapper with `Installed(InstalledDist)`
and `Installable(Dist)` variants
- This lets us pass already installed distributions throughout the
resolver
The user-facing behavior is thoroughly covered in the tests, but
briefly:
- Installing a package that depends on an already-installed package
prefers the local version over the index
- Installing a package with a name that matches an already-installed URL
package does not reinstall from the index
- Reinstalling (--reinstall) a package by name _will_ pull from the
index even if an already-installed URL package is present
- To reinstall the URL package, you must specify the URL in the request
- [x] Reproduction at `charlesnicholson/uv-pep420-bug` passes
- [x] Unit test for editable package
([#1476](https://github.com/astral-sh/uv/issues/1476))
- [x] Unit test for previously installed package with empty registry
- [x] Unit test for local non-editable package
- [x] Unit test for new version available locally but not in registry
([#2093](https://github.com/astral-sh/uv/issues/2093))
- ~[ ] Unit test for wheel not available in registry but already
installed locally
([#2282](https://github.com/astral-sh/uv/issues/2282))~ (seems
complicated and not worthwhile)
- [x] Unit test for install from URL dependency then with matching
version ([#2383](https://github.com/astral-sh/uv/issues/2383))
- [x] Unit test for install of new package that depends on installed
package does not change version
([#2560](https://github.com/astral-sh/uv/issues/2560))
- [x] Unit test that `pip compile` does _not_ consider installed
packages