Remove uv version fallback (#14161)

Fixes #14157

---------

Co-authored-by: John Mumm <[email protected]>

Author: 2 people

crates/uv/src/commands/project/version.rs

@@ -19,7 +19,6 @@ use uv_pep440::{BumpCommand, PrereleaseKind, Version};
 use uv_pep508::PackageName;
 use uv_python::{PythonDownloads, PythonPreference, PythonRequest};
 use uv_settings::PythonInstallMirrors;
-use uv_warnings::warn_user;
 use uv_workspace::pyproject_mut::Error;
 use uv_workspace::{
     DiscoveryOptions, WorkspaceCache,
@@ -58,7 +57,6 @@ pub(crate) async fn project_version(
     mut bump: Vec<VersionBump>,
     short: bool,
     output_format: VersionFormat,
-    strict: bool,
     project_dir: &Path,
     package: Option<PackageName>,
     dry_run: bool,
@@ -80,21 +78,7 @@ pub(crate) async fn project_version(
     preview: PreviewMode,
 ) -> Result<ExitStatus> {
     // Read the metadata
-    let project = match find_target(project_dir, package.as_ref()).await {
-        Ok(target) => target,
-        Err(err) => {
-            // If strict, hard bail on failing to find the pyproject.toml
-            if strict {
-                return Err(err)?;
-            }
-            // Otherwise, warn and provide fallback to the old `uv version` from before 0.7.0
-            warn_user!(
-                "Failed to read project metadata ({err}). Running `{}` for compatibility. This fallback will be removed in the future; pass `--preview` to force an error.",
-                "uv self version".green()
-            );
-            return self_version(short, output_format, printer);
-        }
-    };
+    let project = find_target(project_dir, package.as_ref()).await?;
 
     let pyproject_path = project.root().join("pyproject.toml");
     let Some(name) = project.project_name().cloned() else {

crates/uv/src/lib.rs

@@ -1059,7 +1059,6 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
         }
         Commands::Project(project) => {
             Box::pin(run_project(
-                cli.top_level.global_args.project.is_some(),
                 project,
                 &project_dir,
                 run_command,
@@ -1660,7 +1659,6 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
 
 /// Run a [`ProjectCommand`].
 async fn run_project(
-    project_was_explicit: bool,
     project_command: Box<ProjectCommand>,
     project_dir: &Path,
     command: Option<RunCommand>,
@@ -2052,19 +2050,11 @@ async fn run_project(
                     .combine(Refresh::from(args.settings.resolver.upgrade.clone())),
             );
 
-            // If they specified any of these flags, they probably don't mean `uv self version`
-            let strict = project_was_explicit
-                || globals.preview.is_enabled()
-                || args.dry_run
-                || !args.bump.is_empty()
-                || args.value.is_some()
-                || args.package.is_some();
             Box::pin(commands::project_version(
                 args.value,
                 args.bump,
                 args.short,
                 args.output_format,
-                strict,
                 project_dir,
                 args.package,
                 args.dry_run,

crates/uv/tests/it/version.rs

@@ -1437,8 +1437,8 @@ fn version_set_dynamic() -> Result<()> {
     Ok(())
 }
 
-// Should fallback to `uv --version` if this pyproject.toml isn't usable for whatever reason
-// (In this case, because tool.uv.managed = false)
+/// Previously would fallback to `uv --version` if this pyproject.toml isn't usable for whatever reason
+/// (In this case, because tool.uv.managed = false)
 #[test]
 fn version_get_fallback_unmanaged() -> Result<()> {
     let context = TestContext::new("3.12");
@@ -1456,13 +1456,12 @@ fn version_get_fallback_unmanaged() -> Result<()> {
     )?;
 
     uv_snapshot!(context.filters(), context.version(), @r"
-    success: true
-    exit_code: 0
+    success: false
+    exit_code: 2
     ----- stdout -----
-    uv [VERSION] ([COMMIT] DATE)
 
     ----- stderr -----
-    warning: Failed to read project metadata (The project is marked as unmanaged: `[TEMP_DIR]/`). Running `uv self version` for compatibility. This fallback will be removed in the future; pass `--preview` to force an error.
+    error: The project is marked as unmanaged: `[TEMP_DIR]/`
     ");
 
     let pyproject = fs_err::read_to_string(&pyproject_toml)?;
@@ -1507,13 +1506,12 @@ fn version_get_fallback_unmanaged_short() -> Result<()> {
         .collect::<Vec<_>>();
     uv_snapshot!(filters, context.version()
         .arg("--short"), @r"
-    success: true
-    exit_code: 0
+    success: false
+    exit_code: 2
     ----- stdout -----
-    [VERSION] ([COMMIT] DATE)
 
     ----- stderr -----
-    warning: Failed to read project metadata (The project is marked as unmanaged: `[TEMP_DIR]/`). Running `uv self version` for compatibility. This fallback will be removed in the future; pass `--preview` to force an error.
+    error: The project is marked as unmanaged: `[TEMP_DIR]/`
     ");
 
     let pyproject = fs_err::read_to_string(&pyproject_toml)?;
@@ -1587,25 +1585,14 @@ fn version_get_fallback_unmanaged_json() -> Result<()> {
         .collect::<Vec<_>>();
     if git_version_info_expected() {
         uv_snapshot!(filters, context.version()
-          .arg("--output-format").arg("json"), @r#"
-      success: true
-      exit_code: 0
-      ----- stdout -----
-      {
-        "package_name": "uv",
-        "version": "[VERSION]",
-        "commit_info": {
-          "short_commit_hash": "[LONGHASH]",
-          "commit_hash": "[LONGHASH]",
-          "commit_date": "[DATE]",
-          "last_tag": "[TAG]",
-          "commits_since_last_tag": [COUNT]
-        }
-      }
-
-      ----- stderr -----
-      warning: Failed to read project metadata (The project is marked as unmanaged: `[TEMP_DIR]/`). Running `uv self version` for compatibility. This fallback will be removed in the future; pass `--preview` to force an error.
-      "#);
+          .arg("--output-format").arg("json"), @r"
+        success: false
+        exit_code: 2
+        ----- stdout -----
+
+        ----- stderr -----
+        error: The project is marked as unmanaged: `[TEMP_DIR]/`
+        ");
     } else {
         uv_snapshot!(filters, context.version()
           .arg("--output-format").arg("json"), @r#"