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Use specialized error message for invalid Python install / uninstall requests (#5171)

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## Summary

Closes https://github.com/astral-sh/uv/issues/4819.
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Charlie Marsh 2024-07-17 20:47:55 -04:00 • committed by GitHub
parent 622e9e8799
commit 91bf213641
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4 changed files with 27 additions and 24 deletions
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27
crates/uv-python/src/downloads.rs
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@ -68,8 +68,6 @@ pub enum Error {
NameError(String),
#[error("Failed to parse request part")]
InvalidRequestPlatform(#[from] platform::Error),
#[error("Cannot download managed Python for request: {0}")]
InvalidRequestKind(PythonRequest),
// TODO(zanieb): Implement display for `PythonDownloadRequest`
#[error("No download found for request: {0:?}")]
NoDownloadFound(PythonDownloadRequest),
@ -142,26 +140,23 @@ impl PythonDownloadRequest {
///
/// Returns [`None`] if the request kind is not compatible with a download, e.g., it is
/// a request for a specific directory or executable name.
pub fn try_from_request(request: &PythonRequest) -> Option<Self> {
Self::from_request(request).ok()
}
/// Construct a new [`PythonDownloadRequest`] from a [`PythonRequest`].
pub fn from_request(request: &PythonRequest) -> Result<Self, Error> {
pub fn from_request(request: &PythonRequest) -> Option<Self> {
match request {
PythonRequest::Version(version) => Ok(Self::default().with_version(version.clone())),
PythonRequest::Version(version) => Some(Self::default().with_version(version.clone())),
PythonRequest::Implementation(implementation) => {
Ok(Self::default().with_implementation(*implementation))
Some(Self::default().with_implementation(*implementation))
}
PythonRequest::ImplementationVersion(implementation, version) => Ok(Self::default()
.with_implementation(*implementation)
.with_version(version.clone())),
PythonRequest::Key(request) => Ok(request.clone()),
PythonRequest::Any => Ok(Self::default()),
PythonRequest::ImplementationVersion(implementation, version) => Some(
Self::default()
.with_implementation(*implementation)
.with_version(version.clone()),
),
PythonRequest::Key(request) => Some(request.clone()),
PythonRequest::Any => Some(Self::default()),
// We can't download a managed installation for these request kinds
PythonRequest::Directory(_)
| PythonRequest::ExecutableName(_)
| PythonRequest::File(_) => Err(Error::InvalidRequestKind(request.clone())),
| PythonRequest::File(_) => None,
}
}