We now write the `direct_url.json` when installing, and _skip_ installing if we find a package installed via the direct URL that the user is requesting. A lot of TODOs, especially around cleaning up the `Source` abstraction and its relationship to `DirectUrl`. I'm gonna keep working on these today, but this works and makes the requirements clear. Closes #332.
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.
distribution-filename
Functionality for parsing wheel filenames as per PEP 427.