Zanie Blue
bfb4bc2aeb
I think this would give us better hygiene than a global flag. It makes it easier for users to opt-in to overlapping features, such as Python upgrades and Python bin installations and to disable warnings for preview mode without opting in to a bunch of other features. In general, I want to reduce the burden for putting something under preview. The `--preview` and `--no-preview` flags are retained as global overrides. A new `--preview-features` option is added which accepts comma separated features or can be passed multiple times, e.g., `--preview-features add-bounds,pylock`. There's a `UV_PREVIEW_FEATURES` environment variable for that option (I'm not sure if we should overload `UV_PREVIEW`, but could be convinced).
78 lines
2.0 KiB
Rust
78 lines
2.0 KiB
Rust
use std::io;
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use std::path::Path;
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use thiserror::Error;
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use uv_configuration::Preview;
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use uv_python::{Interpreter, PythonEnvironment};
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pub use virtualenv::{OnExisting, remove_virtualenv};
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mod virtualenv;
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#[derive(Debug, Error)]
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pub enum Error {
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#[error(transparent)]
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Io(#[from] io::Error),
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#[error(
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"Could not find a suitable Python executable for the virtual environment based on the interpreter: {0}"
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)]
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NotFound(String),
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#[error(transparent)]
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Python(#[from] uv_python::managed::Error),
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}
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/// The value to use for the shell prompt when inside a virtual environment.
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#[derive(Debug)]
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pub enum Prompt {
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/// Use the current directory name as the prompt.
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CurrentDirectoryName,
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/// Use the fixed string as the prompt.
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Static(String),
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/// Default to no prompt. The prompt is then set by the activator script
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/// to the virtual environment's directory name.
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None,
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}
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impl Prompt {
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/// Determine the prompt value to be used from the command line arguments.
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pub fn from_args(prompt: Option<String>) -> Self {
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match prompt {
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Some(prompt) if prompt == "." => Self::CurrentDirectoryName,
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Some(prompt) => Self::Static(prompt),
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None => Self::None,
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}
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}
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}
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/// Create a virtualenv.
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#[allow(clippy::fn_params_excessive_bools)]
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pub fn create_venv(
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location: &Path,
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interpreter: Interpreter,
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prompt: Prompt,
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system_site_packages: bool,
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on_existing: OnExisting,
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relocatable: bool,
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seed: bool,
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upgradeable: bool,
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preview: Preview,
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) -> Result<PythonEnvironment, Error> {
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// Create the virtualenv at the given location.
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let virtualenv = virtualenv::create(
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location,
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&interpreter,
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prompt,
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system_site_packages,
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on_existing,
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relocatable,
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seed,
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upgradeable,
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preview,
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)?;
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// Create the corresponding `PythonEnvironment`.
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let interpreter = interpreter.with_virtualenv(virtualenv);
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Ok(PythonEnvironment::from_interpreter(interpreter))
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}
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