Add uv as develop backend command

src/develop.rs

@@ -16,6 +16,10 @@ use std::process::Command;
 use tempfile::TempDir;
 use url::Url;
 
+enum Backend {
+    Pip,
+    Uv,
+}
 /// Install the crate as module in the current virtualenv
 #[derive(Debug, clap::Parser)]
 pub struct DevelopOptions {
@@ -57,20 +61,30 @@ pub struct DevelopOptions {
     /// `cargo rustc` options
     #[command(flatten)]
     pub cargo_options: CargoOptions,
+    /// Use `uv` as develop backend instead of `pip`
+    #[arg(long)]
+    pub uv: bool,
 }
 
-fn make_pip_command(python_path: &Path, pip_path: Option<&Path>) -> Command {
-    match pip_path {
-        Some(pip_path) => {
-            let mut cmd = Command::new(pip_path);
-            cmd.arg("--python")
-                .arg(python_path)
-                .arg("--disable-pip-version-check");
-            cmd
-        }
-        None => {
+fn make_backend_command(python_path: &Path, pip_path: Option<&Path>, backend: &Backend) -> Command {
+    match backend {
+        Backend::Pip => match pip_path {
+            Some(pip_path) => {
+                let mut cmd = Command::new(pip_path);
+                cmd.arg("--python")
+                    .arg(python_path)
+                    .arg("--disable-pip-version-check");
+                cmd
+            }
+            None => {
+                let mut cmd = Command::new(python_path);
+                cmd.arg("-m").arg("pip").arg("--disable-pip-version-check");
+                cmd
+            }
+        },
+        Backend::Uv => {
             let mut cmd = Command::new(python_path);
-            cmd.arg("-m").arg("pip").arg("--disable-pip-version-check");
+            cmd.arg("-m").arg("uv").arg("pip");
             cmd
         }
     }
@@ -81,6 +95,7 @@ fn install_dependencies(
     extras: &[String],
     interpreter: &PythonInterpreter,
     pip_path: Option<&Path>,
+    backend: &Backend,
 ) -> Result<()> {
     if !build_context.metadata23.requires_dist.is_empty() {
         let mut args = vec!["install".to_string()];
@@ -110,7 +125,7 @@ fn install_dependencies(
             }
             pkg.to_string()
         }));
-        let status = make_pip_command(&interpreter.executable, pip_path)
+        let status = make_backend_command(&interpreter.executable, pip_path, backend)
             .args(&args)
             .status()
             .context("Failed to run pip install")?;
@@ -127,8 +142,9 @@ fn pip_install_wheel(
     venv_dir: &Path,
     pip_path: Option<&Path>,
     wheel_filename: &Path,
+    backend: &Backend,
 ) -> Result<()> {
-    let mut pip_cmd = make_pip_command(python, pip_path);
+    let mut pip_cmd = make_backend_command(python, pip_path, backend);
     let output = pip_cmd
         .args(["install", "--no-deps", "--force-reinstall"])
         .arg(dunce::simplified(wheel_filename))
@@ -148,12 +164,15 @@ fn pip_install_wheel(
             String::from_utf8_lossy(&output.stderr).trim(),
         );
     }
+    // uv pip install sends logs to stderr thus only print this warning for pip
     if !output.stderr.is_empty() {
-        eprintln!(
-            "⚠️ Warning: pip raised a warning running {:?}:\n{}",
-            &pip_cmd.get_args().collect::<Vec<_>>(),
-            String::from_utf8_lossy(&output.stderr).trim(),
-        );
+        if let Backend::Pip = backend {
+            eprintln!(
+                "⚠️ Warning: pip raised a warning running {:?}:\n{}",
+                &pip_cmd.get_args().collect::<Vec<_>>(),
+                String::from_utf8_lossy(&output.stderr).trim(),
+            );
+        }
     }
     fix_direct_url(build_context, python, pip_path)?;
     Ok(())
@@ -172,7 +191,9 @@ fn fix_direct_url(
     pip_path: Option<&Path>,
 ) -> Result<()> {
     println!("✏️  Setting installed package as editable");
-    let mut pip_cmd = make_pip_command(python, pip_path);
+    // pip show --files is not supported by uv, thus
+    // default to using pip all the time
+    let mut pip_cmd = make_backend_command(python, pip_path, &Backend::Pip);
     let output = pip_cmd
         .args(["show", "--files"])
         .arg(&build_context.metadata23.name)
@@ -227,7 +248,9 @@ pub fn develop(develop_options: DevelopOptions, venv_dir: &Path) -> Result<()> {
         skip_install,
         pip_path,
         cargo_options,
+        uv,
     } = develop_options;
+    let backend = if uv { Backend::Uv } else { Backend::Pip };
     let mut target_triple = cargo_options.target.as_ref().map(|x| x.to_string());
     let target = Target::from_target_triple(cargo_options.target)?;
     let python = target.get_venv_python(venv_dir);
@@ -278,7 +301,13 @@ pub fn develop(develop_options: DevelopOptions, venv_dir: &Path) -> Result<()> {
             || anyhow!("Expected `python` to be a python interpreter inside a virtualenv ಠ_ಠ"),
         )?;
 
-    install_dependencies(&build_context, &extras, &interpreter, pip_path.as_deref())?;
+    install_dependencies(
+        &build_context,
+        &extras,
+        &interpreter,
+        pip_path.as_deref(),
+        &backend,
+    )?;
 
     let wheels = build_context.build_wheels()?;
     if !skip_install {
@@ -289,6 +318,7 @@ pub fn develop(develop_options: DevelopOptions, venv_dir: &Path) -> Result<()> {
                 venv_dir,
                 pip_path.as_deref(),
                 filename,
+                &backend,
             )?;
             eprintln!(
                 "🛠 Installed {}-{}",

tests/cmd/develop.stdout

@@ -52,6 +52,9 @@ Options:
       --future-incompat-report
           Outputs a future incompatibility report at the end of the build (unstable)
 
+      --uv
+          Use `uv` as develop backend instead of `pip`
+
   -h, --help
           Print help (see a summary with '-h')
 

tests/common/develop.rs

@@ -12,6 +12,7 @@ pub fn test_develop(
     bindings: Option<String>,
     unique_name: &str,
     conda: bool,
+    uv: bool,
 ) -> Result<()> {
     maybe_mock_cargo();
 
@@ -31,6 +32,7 @@ pub fn test_develop(
             "pip",
             "install",
             "--disable-pip-version-check",
+            "uv",
             "cffi",
         ])
         .output()?;
@@ -57,6 +59,7 @@ pub fn test_develop(
             target_dir: Some(PathBuf::from(format!("test-crates/targets/{unique_name}"))),
             ..Default::default()
         },
+        uv,
     };
     develop(develop_options, &venv_dir)?;
 

tests/run.rs

@@ -17,6 +17,7 @@ fn develop_pyo3_pure() {
         None,
         "develop-pyo3-pure",
         false,
+        false,
     ));
 }
 
@@ -30,6 +31,7 @@ fn develop_pyo3_pure_conda() {
             None,
             "develop-pyo3-pure-conda",
             true,
+            false,
         ));
     }
 }
@@ -41,6 +43,7 @@ fn develop_pyo3_mixed() {
         None,
         "develop-pyo3-mixed",
         false,
+        false,
     ));
 }
 
@@ -51,6 +54,7 @@ fn develop_pyo3_mixed_include_exclude() {
         None,
         "develop-pyo3-mixed-include-exclude",
         false,
+        false,
     ));
 }
 
@@ -61,6 +65,7 @@ fn develop_pyo3_mixed_submodule() {
         None,
         "develop-pyo3-mixed-submodule",
         false,
+        false,
     ));
 }
 
@@ -71,6 +76,7 @@ fn develop_pyo3_mixed_with_path_dep() {
         None,
         "develop-pyo3-mixed-with-path-dep",
         false,
+        false,
     ));
 }
 
@@ -81,6 +87,7 @@ fn develop_pyo3_mixed_implicit() {
         None,
         "develop-pyo3-mixed-implicit",
         false,
+        false,
     ));
 }
 
@@ -91,6 +98,7 @@ fn develop_pyo3_mixed_py_subdir() {
         None,
         "develop-pyo3-mixed-py-subdir",
         false,
+        false,
     ));
 }
 
@@ -101,6 +109,7 @@ fn develop_pyo3_mixed_src_layout() {
         None,
         "develop-pyo3-mixed-src",
         false,
+        false,
     ));
 }
 
@@ -116,6 +125,7 @@ fn develop_cffi_pure() {
         None,
         "develop-cffi-pure",
         false,
+        false,
     ));
 }
 
@@ -131,6 +141,7 @@ fn develop_cffi_mixed() {
         None,
         "develop-cffi-mixed",
         false,
+        false,
     ));
 }
 
@@ -142,6 +153,7 @@ fn develop_uniffi_pure() {
             None,
             "develop-uniffi-pure",
             false,
+            false,
         ));
     }
 }
@@ -153,6 +165,7 @@ fn develop_uniffi_pure_proc_macro() {
         None,
         "develop-uniffi-pure-proc-macro",
         false,
+        false,
     ));
 }
 
@@ -164,6 +177,7 @@ fn develop_uniffi_mixed() {
             None,
             "develop-uniffi-mixed",
             false,
+            false,
         ));
     }
 }
@@ -175,6 +189,18 @@ fn develop_hello_world() {
         None,
         "develop-hello-world",
         false,
+        false,
+    ));
+}
+
+#[test]
+fn develop_hello_world_uv() {
+    handle_result(develop::test_develop(
+        "test-crates/hello-world",
+        None,
+        "develop-hello-world-uv",
+        false,
+        true,
     ));
 }
 
@@ -185,6 +211,7 @@ fn develop_pyo3_ffi_pure() {
         None,
         "develop-pyo3-ffi-pure",
         false,
+        false,
     ));
 }