Enable unnamed requirements for direct URLs (#2569)

## Summary

This PR enables `uv pip install` to accept unnamed requirements, as long
as the requirement ends with the wheel or source distribution archive
name. For example: `cargo run pip install
~/Downloads/anyio-4.3.0.tar.gz`.

In subsequent PRs, I'll expand the scope of supported archives and
patterns.

Part of: #313.

crates/uv/Cargo.toml

@@ -64,6 +64,7 @@ tracing-subscriber = { workspace = true, features = ["json"] }
 tracing-tree = { workspace = true }
 unicode-width = { workspace = true }
 url = { workspace = true }
+distribution-filename = { version = "0.0.1", path = "../distribution-filename" }
 
 [target.'cfg(target_os = "windows")'.dependencies]
 mimalloc = { version = "0.1.39" }

crates/uv/src/commands/pip_compile.rs

@@ -37,7 +37,8 @@ use crate::commands::reporters::{DownloadReporter, ResolverReporter};
 use crate::commands::{elapsed, ExitStatus};
 use crate::printer::Printer;
 use crate::requirements::{
-    read_lockfile, ExtrasSpecification, RequirementsSource, RequirementsSpecification,
+    read_lockfile, ExtrasSpecification, NamedRequirements, RequirementsSource,
+    RequirementsSpecification,
 };
 
 /// Resolve a set of requirements into a set of pinned versions.
@@ -89,18 +90,7 @@ pub(crate) async fn pip_compile(
     }
 
     // Read all requirements from the provided sources.
-    let RequirementsSpecification {
-        project,
-        requirements,
-        constraints,
-        overrides,
-        editables,
-        index_url,
-        extra_index_urls,
-        no_index,
-        find_links,
-        extras: used_extras,
-    } = RequirementsSpecification::from_sources(
+    let spec = RequirementsSpecification::from_sources(
         requirements,
         constraints,
         overrides,
@@ -113,7 +103,7 @@ pub(crate) async fn pip_compile(
     if let ExtrasSpecification::Some(extras) = extras {
         let mut unused_extras = extras
             .iter()
-            .filter(|extra| !used_extras.contains(extra))
+            .filter(|extra| !spec.extras.contains(extra))
             .collect::<Vec<_>>();
         if !unused_extras.is_empty() {
             unused_extras.sort_unstable();
@@ -126,6 +116,19 @@ pub(crate) async fn pip_compile(
         }
     }
 
+    // Convert from unnamed to named requirements.
+    let NamedRequirements {
+        project,
+        requirements,
+        constraints,
+        overrides,
+        editables,
+        index_url,
+        extra_index_urls,
+        no_index,
+        find_links,
+    } = NamedRequirements::from_spec(spec)?;
+
     // Read the lockfile, if present.
     let preferences = read_lockfile(output_file, upgrade).await?;
 

crates/uv/src/commands/pip_install.rs

@@ -40,7 +40,9 @@ use uv_warnings::warn_user;
 use crate::commands::reporters::{DownloadReporter, InstallReporter, ResolverReporter};
 use crate::commands::{compile_bytecode, elapsed, ChangeEvent, ChangeEventKind, ExitStatus};
 use crate::printer::Printer;
-use crate::requirements::{ExtrasSpecification, RequirementsSource, RequirementsSpecification};
+use crate::requirements::{
+    ExtrasSpecification, NamedRequirements, RequirementsSource, RequirementsSpecification,
+};
 
 use super::{DryRunEvent, Upgrade};
 
@@ -76,10 +78,10 @@ pub(crate) async fn pip_install(
     dry_run: bool,
     printer: Printer,
 ) -> Result<ExitStatus> {
-    let start = std::time::Instant::now();
+    let start = Instant::now();
 
     // Read all requirements from the provided sources.
-    let RequirementsSpecification {
+    let NamedRequirements {
         project,
         requirements,
         constraints,
@@ -89,25 +91,7 @@ pub(crate) async fn pip_install(
         extra_index_urls,
         no_index,
         find_links,
-        extras: used_extras,
-    } = specification(requirements, constraints, overrides, extras, connectivity).await?;
-
-    // Check that all provided extras are used
-    if let ExtrasSpecification::Some(extras) = extras {
-        let mut unused_extras = extras
-            .iter()
-            .filter(|extra| !used_extras.contains(extra))
-            .collect::<Vec<_>>();
-        if !unused_extras.is_empty() {
-            unused_extras.sort_unstable();
-            unused_extras.dedup();
-            let s = if unused_extras.len() == 1 { "" } else { "s" };
-            return Err(anyhow!(
-                "Requested extra{s} not found: {}",
-                unused_extras.iter().join(", ")
-            ));
-        }
-    }
+    } = read_requirements(requirements, constraints, overrides, extras, connectivity).await?;
 
     // Detect the current Python interpreter.
     let venv = if let Some(python) = python.as_ref() {
@@ -348,13 +332,13 @@ pub(crate) async fn pip_install(
 }
 
 /// Consolidate the requirements for an installation.
-async fn specification(
+async fn read_requirements(
     requirements: &[RequirementsSource],
     constraints: &[RequirementsSource],
     overrides: &[RequirementsSource],
     extras: &ExtrasSpecification<'_>,
     connectivity: Connectivity,
-) -> Result<RequirementsSpecification, Error> {
+) -> Result<NamedRequirements, Error> {
     // If the user requests `extras` but does not provide a pyproject toml source
     if !matches!(extras, ExtrasSpecification::None)
         && !requirements
@@ -392,6 +376,9 @@ async fn specification(
         }
     }
 
+    // Convert from unnamed to named requirements.
+    let spec = NamedRequirements::from_spec(spec)?;
+
     Ok(spec)
 }
 

crates/uv/src/commands/pip_sync.rs

@@ -26,7 +26,7 @@ use uv_warnings::warn_user;
 use crate::commands::reporters::{DownloadReporter, FinderReporter, InstallReporter};
 use crate::commands::{compile_bytecode, elapsed, ChangeEvent, ChangeEventKind, ExitStatus};
 use crate::printer::Printer;
-use crate::requirements::{RequirementsSource, RequirementsSpecification};
+use crate::requirements::{NamedRequirements, RequirementsSource, RequirementsSpecification};
 
 /// Install a set of locked requirements into the current Python environment.
 #[allow(clippy::too_many_arguments, clippy::fn_params_excessive_bools)]
@@ -54,20 +54,10 @@ pub(crate) async fn pip_sync(
     let start = std::time::Instant::now();
 
     // Read all requirements from the provided sources.
-    let RequirementsSpecification {
-        project: _project,
-        requirements,
-        constraints: _constraints,
-        overrides: _overrides,
-        editables,
-        index_url,
-        extra_index_urls,
-        no_index,
-        find_links,
-        extras: _extras,
-    } = RequirementsSpecification::from_simple_sources(sources, connectivity).await?;
+    let spec = RequirementsSpecification::from_simple_sources(sources, connectivity).await?;
 
-    let num_requirements = requirements.len() + editables.len();
+    // Validate that the requirements are non-empty.
+    let num_requirements = spec.requirements.len() + spec.editables.len();
     if num_requirements == 0 {
         writeln!(printer.stderr(), "No requirements found")?;
         return Ok(ExitStatus::Success);
@@ -107,6 +97,19 @@ pub(crate) async fn pip_sync(
         }
     }
 
+    // Convert from unnamed to named requirements.
+    let NamedRequirements {
+        project: _project,
+        requirements,
+        constraints: _constraints,
+        overrides: _overrides,
+        editables,
+        index_url,
+        extra_index_urls,
+        no_index,
+        find_links,
+    } = NamedRequirements::from_spec(spec)?;
+
     let _lock = venv.lock()?;
 
     // Determine the current environment markers.

crates/uv/src/commands/pip_uninstall.rs

@@ -12,7 +12,7 @@ use uv_interpreter::PythonEnvironment;
 
 use crate::commands::{elapsed, ExitStatus};
 use crate::printer::Printer;
-use crate::requirements::{RequirementsSource, RequirementsSpecification};
+use crate::requirements::{NamedRequirements, RequirementsSource, RequirementsSpecification};
 
 /// Uninstall packages from the current environment.
 pub(crate) async fn pip_uninstall(
@@ -27,18 +27,7 @@ pub(crate) async fn pip_uninstall(
     let start = std::time::Instant::now();
 
     // Read all requirements from the provided sources.
-    let RequirementsSpecification {
-        project: _project,
-        requirements,
-        constraints: _constraints,
-        overrides: _overrides,
-        editables,
-        index_url: _index_url,
-        extra_index_urls: _extra_index_urls,
-        no_index: _no_index,
-        find_links: _find_links,
-        extras: _extras,
-    } = RequirementsSpecification::from_simple_sources(sources, connectivity).await?;
+    let spec = RequirementsSpecification::from_simple_sources(sources, connectivity).await?;
 
     // Detect the current Python interpreter.
     let venv = if let Some(python) = python.as_ref() {
@@ -74,6 +63,19 @@ pub(crate) async fn pip_uninstall(
         }
     }
 
+    // Convert from unnamed to named requirements.
+    let NamedRequirements {
+        project: _,
+        requirements,
+        constraints: _,
+        overrides: _,
+        editables,
+        index_url: _,
+        extra_index_urls: _,
+        no_index: _,
+        find_links: _,
+    } = NamedRequirements::from_spec(spec)?;
+
     let _lock = venv.lock()?;
 
     // Index the current `site-packages` directory.