Tear miette out of the uv venv command (#14546)

This has some changes to the user-facing output, but makes it more
consistent with the rest of uv.

Author: zanieb

crates/uv/src/commands/venv.rs

@@ -4,9 +4,7 @@ use std::str::FromStr;
 use std::sync::Arc;
 use std::vec;
 
-use anstream::eprint;
 use anyhow::Result;
-use miette::{Diagnostic, IntoDiagnostic};
 use owo_colors::OwoColorize;
 use thiserror::Error;
 
@@ -42,96 +40,30 @@ use crate::settings::NetworkSettings;
 
 use super::project::default_dependency_groups;
 
-/// Create a virtual environment.
-#[allow(clippy::unnecessary_wraps, clippy::fn_params_excessive_bools)]
-pub(crate) async fn venv(
-    project_dir: &Path,
-    path: Option<PathBuf>,
-    python_request: Option<PythonRequest>,
-    install_mirrors: PythonInstallMirrors,
-    python_preference: PythonPreference,
-    python_downloads: PythonDownloads,
-    link_mode: LinkMode,
-    index_locations: &IndexLocations,
-    index_strategy: IndexStrategy,
-    dependency_metadata: DependencyMetadata,
-    keyring_provider: KeyringProviderType,
-    network_settings: &NetworkSettings,
-    prompt: uv_virtualenv::Prompt,
-    system_site_packages: bool,
-    seed: bool,
-    allow_existing: bool,
-    exclude_newer: Option<ExcludeNewer>,
-    concurrency: Concurrency,
-    no_config: bool,
-    no_project: bool,
-    cache: &Cache,
-    printer: Printer,
-    relocatable: bool,
-    preview: PreviewMode,
-) -> Result<ExitStatus> {
-    match venv_impl(
-        project_dir,
-        path,
-        python_request,
-        install_mirrors,
-        link_mode,
-        index_locations,
-        index_strategy,
-        dependency_metadata,
-        keyring_provider,
-        network_settings,
-        prompt,
-        system_site_packages,
-        seed,
-        python_preference,
-        python_downloads,
-        allow_existing,
-        exclude_newer,
-        concurrency,
-        no_config,
-        no_project,
-        cache,
-        printer,
-        relocatable,
-        preview,
-    )
-    .await
-    {
-        Ok(status) => Ok(status),
-        Err(err) => {
-            eprint!("{err:?}");
-            Ok(ExitStatus::Failure)
-        }
-    }
-}
-
-#[derive(Error, Debug, Diagnostic)]
+#[derive(Error, Debug)]
 enum VenvError {
-    #[error("Failed to create virtualenv")]
-    #[diagnostic(code(uv::venv::creation))]
+    #[error("Failed to create virtual environment")]
     Creation(#[source] uv_virtualenv::Error),
 
-    #[error("Failed to install seed packages")]
-    #[diagnostic(code(uv::venv::seed))]
+    #[error("Failed to install seed packages into virtual environment")]
     Seed(#[source] AnyErrorBuild),
 
-    #[error("Failed to extract interpreter tags")]
-    #[diagnostic(code(uv::venv::tags))]
+    #[error("Failed to extract interpreter tags for installing seed packages")]
     Tags(#[source] uv_platform_tags::TagsError),
 
     #[error("Failed to resolve `--find-links` entry")]
-    #[diagnostic(code(uv::venv::flat_index))]
     FlatIndex(#[source] uv_client::FlatIndexError),
 }
 
 /// Create a virtual environment.
-#[allow(clippy::fn_params_excessive_bools)]
-async fn venv_impl(
+#[allow(clippy::unnecessary_wraps, clippy::fn_params_excessive_bools)]
+pub(crate) async fn venv(
     project_dir: &Path,
     path: Option<PathBuf>,
     python_request: Option<PythonRequest>,
     install_mirrors: PythonInstallMirrors,
+    python_preference: PythonPreference,
+    python_downloads: PythonDownloads,
     link_mode: LinkMode,
     index_locations: &IndexLocations,
     index_strategy: IndexStrategy,
@@ -141,8 +73,6 @@ async fn venv_impl(
     prompt: uv_virtualenv::Prompt,
     system_site_packages: bool,
     seed: bool,
-    python_preference: PythonPreference,
-    python_downloads: PythonDownloads,
     allow_existing: bool,
     exclude_newer: Option<ExcludeNewer>,
     concurrency: Concurrency,
@@ -152,7 +82,7 @@ async fn venv_impl(
     printer: Printer,
     relocatable: bool,
     preview: PreviewMode,
-) -> miette::Result<ExitStatus> {
+) -> Result<ExitStatus> {
     let workspace_cache = WorkspaceCache::default();
     let project = if no_project {
         None
@@ -206,7 +136,7 @@ async fn venv_impl(
     // If the default dependency-groups demand a higher requires-python
     // we should bias an empty venv to that to avoid churn.
     let default_groups = match &project {
-        Some(project) => default_dependency_groups(project.pyproject_toml()).into_diagnostic()?,
+        Some(project) => default_dependency_groups(project.pyproject_toml())?,
         None => DefaultGroups::default(),
     };
     let groups = DependencyGroups::default().with_defaults(default_groups);
@@ -221,8 +151,7 @@ async fn venv_impl(
         project_dir,
         no_config,
     )
-    .await
-    .into_diagnostic()?;
+    .await?;
 
     // Locate the Python interpreter to use in the environment
     let interpreter = {
@@ -239,9 +168,8 @@ async fn venv_impl(
             install_mirrors.python_downloads_json_url.as_deref(),
             preview,
         )
-        .await
-        .into_diagnostic()?;
-        report_interpreter(&python, false, printer).into_diagnostic()?;
+        .await?;
+        report_interpreter(&python, false, printer)?;
         python.into_interpreter()
     };
 
@@ -268,8 +196,7 @@ async fn venv_impl(
         "Creating virtual environment {}at: {}",
         if seed { "with seed packages " } else { "" },
         path.user_display().cyan()
-    )
-    .into_diagnostic()?;
+    )?;
 
     let upgradeable = preview.is_enabled()
         && python_request
@@ -307,8 +234,7 @@ async fn venv_impl(
         }
 
         // Instantiate a client.
-        let client = RegistryClientBuilder::try_from(client_builder)
-            .into_diagnostic()?
+        let client = RegistryClientBuilder::try_from(client_builder)?
             .cache(cache.clone())
             .index_locations(index_locations)
             .index_strategy(index_strategy)
@@ -400,9 +326,7 @@ async fn venv_impl(
             .map_err(|err| VenvError::Seed(err.into()))?;
 
         let changelog = Changelog::from_installed(installed);
-        DefaultInstallLogger
-            .on_complete(&changelog, printer)
-            .into_diagnostic()?;
+        DefaultInstallLogger.on_complete(&changelog, printer)?;
     }
 
     // Determine the appropriate activation command.
@@ -431,7 +355,7 @@ async fn venv_impl(
         Some(Shell::Cmd) => Some(shlex_windows(venv.scripts().join("activate"), Shell::Cmd)),
     };
     if let Some(act) = activation {
-        writeln!(printer.stderr(), "Activate with: {}", act.green()).into_diagnostic()?;
+        writeln!(printer.stderr(), "Activate with: {}", act.green())?;
     }
 
     Ok(ExitStatus::Success)

crates/uv/tests/it/pip_compile.rs

@@ -17411,11 +17411,11 @@ fn compile_broken_active_venv() -> Result<()> {
         .arg(&broken_system_python)
         .arg("venv2"), @r"
     success: false
-    exit_code: 1
+    exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
-      × No interpreter found at path `python3.14159`
+    error: No interpreter found at path `python3.14159`
     ");
 
     // Simulate a removed Python interpreter

crates/uv/tests/it/venv.rs

@@ -656,13 +656,13 @@ fn create_venv_respects_group_requires_python() -> Result<()> {
 
     uv_snapshot!(context.filters(), context.venv().arg("--python").arg("3.11"), @r"
     success: false
-    exit_code: 1
+    exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
-      × Found conflicting Python requirements:
-      │ - foo: <3.12
-      │ - foo:dev: >=3.12
+    error: Found conflicting Python requirements:
+    - foo: <3.12
+    - foo:dev: >=3.12
     "
     );
 
@@ -808,7 +808,7 @@ fn seed_older_python_version() {
 
 #[test]
 fn create_venv_unknown_python_minor() {
-    let context = TestContext::new_with_versions(&["3.12"]);
+    let context = TestContext::new_with_versions(&["3.12"]).with_filtered_python_sources();
 
     let mut command = context.venv();
     command
@@ -819,34 +819,22 @@ fn create_venv_unknown_python_minor() {
         // Unset this variable to force what the user would see
         .env_remove(EnvVars::UV_TEST_PYTHON_PATH);
 
-    if cfg!(windows) {
-        uv_snapshot!(&mut command, @r###"
-        success: false
-        exit_code: 1
-        ----- stdout -----
-
-        ----- stderr -----
-          × No interpreter found for Python 3.100 in managed installations, search path, or registry
-        "###
-        );
-    } else {
-        uv_snapshot!(&mut command, @r###"
-        success: false
-        exit_code: 1
-        ----- stdout -----
+    uv_snapshot!(context.filters(), &mut command, @r"
+    success: false
+    exit_code: 2
+    ----- stdout -----
 
-        ----- stderr -----
-          × No interpreter found for Python 3.100 in managed installations or search path
-        "###
-        );
-    }
+    ----- stderr -----
+    error: No interpreter found for Python 3.100 in [PYTHON SOURCES]
+    "
+    );
 
     context.venv.assert(predicates::path::missing());
 }
 
 #[test]
 fn create_venv_unknown_python_patch() {
-    let context = TestContext::new_with_versions(&["3.12"]);
+    let context = TestContext::new_with_versions(&["3.12"]).with_filtered_python_sources();
 
     let mut command = context.venv();
     command
@@ -857,27 +845,15 @@ fn create_venv_unknown_python_patch() {
         // Unset this variable to force what the user would see
         .env_remove(EnvVars::UV_TEST_PYTHON_PATH);
 
-    if cfg!(windows) {
-        uv_snapshot!(&mut command, @r###"
-        success: false
-        exit_code: 1
-        ----- stdout -----
-
-        ----- stderr -----
-          × No interpreter found for Python 3.12.100 in managed installations, search path, or registry
-        "###
-        );
-    } else {
-        uv_snapshot!(&mut command, @r"
-        success: false
-        exit_code: 1
-        ----- stdout -----
+    uv_snapshot!(context.filters(), &mut command, @r"
+    success: false
+    exit_code: 2
+    ----- stdout -----
 
-        ----- stderr -----
-          × No interpreter found for Python 3.12.100 in managed installations or search path
-        "
-        );
-    }
+    ----- stderr -----
+    error: No interpreter found for Python 3.12.[X] in [PYTHON SOURCES]
+    "
+    );
 
     context.venv.assert(predicates::path::missing());
 }
@@ -915,19 +891,17 @@ fn file_exists() -> Result<()> {
     uv_snapshot!(context.filters(), context.venv()
         .arg(context.venv.as_os_str())
         .arg("--python")
-        .arg("3.12"), @r###"
+        .arg("3.12"), @r"
     success: false
-    exit_code: 1
+    exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
     Using CPython 3.12.[X] interpreter at: [PYTHON-3.12]
     Creating virtual environment at: .venv
-    uv::venv::creation
-
-      × Failed to create virtualenv
-      ╰─▶ File exists at `.venv`
-    "###
+    error: Failed to create virtual environment
+      Caused by: File exists at `.venv`
+    "
     );
 
     Ok(())
@@ -970,19 +944,17 @@ fn non_empty_dir_exists() -> Result<()> {
     uv_snapshot!(context.filters(), context.venv()
         .arg(context.venv.as_os_str())
         .arg("--python")
-        .arg("3.12"), @r###"
+        .arg("3.12"), @r"
     success: false
-    exit_code: 1
+    exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
     Using CPython 3.12.[X] interpreter at: [PYTHON-3.12]
     Creating virtual environment at: .venv
-    uv::venv::creation
-
-      × Failed to create virtualenv
-      ╰─▶ The directory `.venv` exists, but it's not a virtual environment
-    "###
+    error: Failed to create virtual environment
+      Caused by: The directory `.venv` exists, but it's not a virtual environment
+    "
     );
 
     Ok(())
@@ -1000,19 +972,17 @@ fn non_empty_dir_exists_allow_existing() -> Result<()> {
     uv_snapshot!(context.filters(), context.venv()
         .arg(context.venv.as_os_str())
         .arg("--python")
-        .arg("3.12"), @r###"
+        .arg("3.12"), @r"
     success: false
-    exit_code: 1
+    exit_code: 2
     ----- stdout -----
 
     ----- stderr -----
     Using CPython 3.12.[X] interpreter at: [PYTHON-3.12]
     Creating virtual environment at: .venv
-    uv::venv::creation
-
-      × Failed to create virtualenv
-      ╰─▶ The directory `.venv` exists, but it's not a virtual environment
-    "###
+    error: Failed to create virtual environment
+      Caused by: The directory `.venv` exists, but it's not a virtual environment
+    "
     );
 
     uv_snapshot!(context.filters(), context.venv()