Zanie Blue
5f1f207628
Previously, when installing a package we would delete the target directory before copying (or linking) the contents of the package. However, this means that we do not properly support namespace packages which can share a target directory. Instead the last package to be installed would be override existing packages. Since we install packages in parallel, this could result in a race condition where the target directory already exists which is not allowed when using `clonefile`. See example error in #515. https://github.com/astral-sh/puffin/pull/516/commits/c7e63d2dcebab6aa37427c58a9db7603db546a4f provides a regression test for this — it fails on `main`. Here, we implement a recursive merge when the target directory already exists. Both packages will be installed into the same directory. We no longer delete the target directory, which seems okay since we uninstall packages before installing now. When files conflict, we will likely throw an error still. The correct behavior to implement in this case is unclear, as if we just take "first write wins" or "last write wins" we could end up with some files from one package and some from another resulting in two broken packages. A possible solution here is to lock the target directories while copying.
Crates
bench
Functionality for benchmarking Puffin.
distribution-filename
Parse built distribution (wheel) and source distribution (sdist) filenames to extract structured metadata.
distribution-types
Abstractions for representing built distributions (wheels) and source distributions (sdists), and the sources from which they can be downloaded.
gourgeist
A venv replacement to create virtual environments in Rust.
install-wheel-rs
Install built distributions (wheels) into a virtual environment.]
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-build
A PEP 517-compatible build frontend for Puffin.
puffin-cache
Functionality for caching Python packages and associated metadata.
puffin-cli
Command-line interface for the Puffin package manager.
puffin-client
Client for interacting with PyPI-compatible HTTP APIs.
puffin-dev
Development utilities for Puffin.
puffin-dispatch
A centralized struct for resolving and building source distributions in isolated environments.
Implements the traits defined in puffin-traits.
puffin-distribution
Client for interacting with built distributions (wheels) and source distributions (sdists). Capable of fetching metadata, distribution contents, etc.
puffin-git
Functionality for interacting with Git repositories.
puffin-installer
Functionality for installing Python packages into a virtual environment.
puffin-interpreter
Functionality for detecting and leveraging the current Python interpreter.
puffin-macros
Reusable procedural macros for Puffin.
puffin-normalize
Normalize package and extra names as per Python specifications.
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.
puffin-traits
Shared traits for Puffin, to avoid circular dependencies.
pypi-types
General-purpose type definitions for types used in PyPI-compatible APIs.
requirements-txt
Functionality for parsing requirements.txt files.