471a1d657d
## Summary This PR enables the proof-of-concept resolver to backtrack by way of using the `pubgrub-rs` crate. Rather than using PubGrub as a _framework_ (implementing the `DependencyProvider` trait, letting PubGrub call us), I've instead copied over PubGrub's primary solver hook (which is only ~100 lines or so) and modified it for our purposes (e.g., made it async). There's a lot to improve here, but it's a start that will let us understand PubGrub's appropriateness for this problem space. A few observations: - In simple cases, the resolver is slower than our current (naive) resolver. I think it's just that the pipelining isn't as efficient as in the naive case, where we can just stream package and version fetches concurrently without any bottlenecks. - A lot of the code here relates to bridging PubGrub with our own abstractions -- so we need a `PubGrubPackage`, a `PubGrubVersion`, etc. |
||
|---|---|---|
| .. | ||
| gourgeist | ||
| install-wheel-rs | ||
| pep440-rs | ||
| pep508-rs | ||
| platform-host | ||
| platform-tags | ||
| puffin-cli | ||
| puffin-client | ||
| puffin-installer | ||
| puffin-interpreter | ||
| puffin-package | ||
| puffin-resolver | ||
| wheel-filename | ||
| README.md | ||
Crates
pep440-rs
Utilities for interacting with Python version numbers and specifiers.
pep508-rs
Utilities for interacting with PEP 508 dependency specifiers.
platform-host
Functionality for detecting the current platform (operating system, architecture, etc.).
platform-tags
Functionality for parsing and inferring Python platform tags as per PEP 425.
puffin-cli
Command-line interface for the Puffin package manager.
puffin-client
Client for interacting with PyPI-compatible HTTP APIs.
puffin-installer
Functionality for installing Python packages into a virtual environment.
puffin-interpreter
Functionality for detecting and leveraging the current Python interpreter.
puffin-package
Types and functionality for working with Python packages, e.g., parsing wheel files.
puffin-resolver
Functionality for resolving Python packages and their dependencies.
wheel-filename
Functionality for parsing wheel filenames as per PEP 427.