Log which preview features are enabled

crates/uv-build/Cargo.toml

@@ -18,6 +18,7 @@ uv-static = { workspace = true }
 
 anstream = { workspace = true }
 anyhow = { workspace = true }
+tracing = { workspace = true }
 tracing-subscriber = { workspace = true, features = ["env-filter"] }
 
 [lints]

crates/uv-build/src/main.rs

@@ -6,6 +6,7 @@ use uv_preview::Preview;
 use uv_static::{EnvVars, parse_boolish_environment_variable};
 
 use anyhow::{Context, Result, bail};
+use tracing::debug;
 use tracing_subscriber::filter::LevelFilter;
 use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::util::SubscriberInitExt;
@@ -57,6 +58,12 @@ fn main() -> Result<()> {
     } else {
         Preview::default()
     };
+    if preview.all_enabled() {
+        debug!("All preview features are enabled");
+    } else if preview.any_enabled() {
+        debug!("The following preview features are enabled: {preview}");
+    }
+
     match command.as_str() {
         "build-sdist" => {
             let sdist_directory = PathBuf::from(args.next().context("Missing sdist directory")?);

crates/uv-fs/src/locked_file.rs

@@ -147,7 +147,7 @@ impl LockedFile {
         let try_lock_exclusive = tokio::task::spawn_blocking(move || (mode.try_lock(&file), file));
         let file = match try_lock_exclusive.await? {
             (Ok(()), file) => {
-                debug!("Acquired {mode} lock for `{resource}`");
+                trace!("Acquired {mode} lock for `{resource}`");
                 return Ok(Self(file));
             }
             (Err(err), file) => {
@@ -180,7 +180,7 @@ impl LockedFile {
             source: err,
         })?;
 
-        debug!("Acquired {mode} lock for `{resource}`");
+        trace!("Acquired {mode} lock for `{resource}`");
         Ok(Self(file))
     }
 
@@ -192,7 +192,7 @@ impl LockedFile {
         );
         match mode.try_lock(&file) {
             Ok(()) => {
-                debug!("Acquired {mode} lock for `{resource}`");
+                trace!("Acquired {mode} lock for `{resource}`");
                 Some(Self(file))
             }
             Err(err) => {
@@ -341,7 +341,7 @@ impl Drop for LockedFile {
                 self.0.path().display()
             );
         } else {
-            debug!("Released lock at `{}`", self.0.path().display());
+            trace!("Released lock at `{}`", self.0.path().display());
         }
     }
 }

crates/uv-preview/src/lib.rs

@@ -154,10 +154,20 @@ impl Preview {
         Self::new(preview_features)
     }
 
-    /// Check if a single feature is enabled
+    /// Check if a single feature is enabled.
     pub fn is_enabled(&self, flag: PreviewFeature) -> bool {
         self.flags.contains(flag)
     }
+
+    /// Check if all preview feature rae enabled.
+    pub fn all_enabled(&self) -> bool {
+        self.flags.is_all()
+    }
+
+    /// Check if any preview feature is enabled.
+    pub fn any_enabled(&self) -> bool {
+        !self.flags.is_empty()
+    }
 }
 
 impl Display for Preview {

crates/uv/src/lib.rs

@@ -339,6 +339,38 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
         &environment,
     );
 
+    // Set the global flags.
+    uv_flags::init(EnvironmentFlags::from(&environment))
+        .map_err(|()| anyhow::anyhow!("Flags are already initialized"))?;
+
+    // Configure the `tracing` crate, which controls internal logging.
+    #[cfg(feature = "tracing-durations-export")]
+    let (durations_layer, _duration_guard) =
+        logging::setup_durations(environment.tracing_durations_file.as_ref())?;
+    #[cfg(not(feature = "tracing-durations-export"))]
+    let durations_layer = None::<tracing_subscriber::layer::Identity>;
+    logging::setup_logging(
+        match globals.verbose {
+            0 => logging::Level::Off,
+            1 => logging::Level::DebugUv,
+            2 => logging::Level::TraceUv,
+            3.. => logging::Level::TraceAll,
+        },
+        durations_layer,
+        globals.color,
+        environment.log_context.unwrap_or_default(),
+    )?;
+
+    debug!("uv {}", uv_cli::version::uv_self_version());
+    if globals.preview.all_enabled() {
+        debug!("All preview features are enabled");
+    } else if globals.preview.any_enabled() {
+        debug!(
+            "The following preview features are enabled: {}",
+            globals.preview
+        );
+    }
+
     // Adjust open file limits on Unix if the preview feature is enabled.
     #[cfg(unix)]
     if globals.preview.is_enabled(PreviewFeature::AdjustUlimit) {
@@ -353,10 +385,6 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
     // Resolve the cache settings.
     let cache_settings = CacheSettings::resolve(*cli.top_level.cache_args, filesystem.as_ref());
 
-    // Set the global flags.
-    uv_flags::init(EnvironmentFlags::from(&environment))
-        .map_err(|()| anyhow::anyhow!("Flags are already initialized"))?;
-
     // Enforce the required version.
     if let Some(required_version) = globals.required_version.as_ref() {
         let package_version = uv_pep440::Version::from_str(uv_version::version())?;
@@ -396,24 +424,6 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
         }
     }
 
-    // Configure the `tracing` crate, which controls internal logging.
-    #[cfg(feature = "tracing-durations-export")]
-    let (durations_layer, _duration_guard) =
-        logging::setup_durations(environment.tracing_durations_file.as_ref())?;
-    #[cfg(not(feature = "tracing-durations-export"))]
-    let durations_layer = None::<tracing_subscriber::layer::Identity>;
-    logging::setup_logging(
-        match globals.verbose {
-            0 => logging::Level::Off,
-            1 => logging::Level::DebugUv,
-            2 => logging::Level::TraceUv,
-            3.. => logging::Level::TraceAll,
-        },
-        durations_layer,
-        globals.color,
-        environment.log_context.unwrap_or_default(),
-    )?;
-
     // Configure the `Printer`, which controls user-facing output in the CLI.
     let printer = if globals.quiet == 1 {
         Printer::Quiet
@@ -454,8 +464,6 @@ async fn run(mut cli: Cli) -> Result<ExitStatus> {
     // Don't initialize the rayon threadpool yet, this is too costly when we're doing a noop sync.
     uv_configuration::RAYON_PARALLELISM.store(globals.concurrency.installs, Ordering::Relaxed);
 
-    debug!("uv {}", uv_cli::version::uv_self_version());
-
     // Write out any resolved settings.
     macro_rules! show_settings {
         ($arg:expr) => {

crates/uv/tests/it/cache_clean.rs

@@ -29,9 +29,7 @@ fn clean_all() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Clearing cache at: [CACHE_DIR]/
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     Removed [N] files ([SIZE])
     ");
 
@@ -60,9 +58,7 @@ async fn clean_force() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Clearing cache at: [CACHE_DIR]/
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     Removed [N] files ([SIZE])
     ");
 
@@ -140,10 +136,8 @@ fn clean_package_pypi() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     DEBUG Removing dangling cache entry: [CACHE_DIR]/archive-v0/[ENTRY]
     Removed [N] files ([SIZE])
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     // Assert that the `.rkyv` file is removed for `iniconfig`.
@@ -160,10 +154,8 @@ fn clean_package_pypi() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     No unused entries found
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     Ok(())
@@ -219,10 +211,8 @@ fn clean_package_index() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     DEBUG Removing dangling cache entry: [CACHE_DIR]/archive-v0/[ENTRY]
     Removed [N] files ([SIZE])
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     // Assert that the `.rkyv` file is removed for `iniconfig`.

crates/uv/tests/it/cache_prune.rs

@@ -35,10 +35,8 @@ fn prune_no_op() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     No unused entries found
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     Ok(())
@@ -76,11 +74,9 @@ fn prune_stale_directory() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     DEBUG Removing dangling cache bucket: [CACHE_DIR]/simple-v4
     Removed 1 directory
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     Ok(())
@@ -138,12 +134,10 @@ fn prune_cached_env() {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     DEBUG Removing dangling cache environment: [CACHE_DIR]/environments-v2/[ENTRY]
     DEBUG Removing dangling cache archive: [CACHE_DIR]/archive-v0/[ENTRY]
     Removed [N] files ([SIZE])
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 }
 
@@ -185,11 +179,9 @@ fn prune_stale_symlink() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     DEBUG Removing dangling cache archive: [CACHE_DIR]/archive-v0/[ENTRY]
     Removed 44 files ([SIZE])
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     Ok(())
@@ -217,10 +209,8 @@ async fn prune_force() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     No unused entries found
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     // Add a stale directory to the cache.
@@ -407,12 +397,10 @@ fn prune_stale_revision() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired exclusive lock for `[CACHE_DIR]/`
     Pruning cache at: [CACHE_DIR]/
     DEBUG Removing dangling source revision: [CACHE_DIR]/sdists-v9/[ENTRY]
     DEBUG Removing dangling cache archive: [CACHE_DIR]/archive-v0/[ENTRY]
     Removed [N] files ([SIZE])
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     ");
 
     // Uninstall and reinstall the package. We should use the cached version.

crates/uv/tests/it/lock.rs

@@ -18841,7 +18841,6 @@ fn lock_explicit_default_index() -> Result<()> {
 
     ----- stderr -----
     DEBUG uv [VERSION] ([COMMIT] DATE)
-    DEBUG Acquired shared lock for `[CACHE_DIR]/`
     DEBUG Found workspace root: `[TEMP_DIR]/`
     DEBUG Adding root workspace member: `[TEMP_DIR]/`
     DEBUG No Python version file found in workspace: [TEMP_DIR]/
@@ -18866,7 +18865,6 @@ fn lock_explicit_default_index() -> Result<()> {
     DEBUG No compatible version found for: project
       × No solution found when resolving dependencies:
       ╰─▶ Because anyio was not found in the package registry and your project depends on anyio, we can conclude that your project's requirements are unsatisfiable.
-    DEBUG Released lock at `[CACHE_DIR]/.lock`
     "#);
 
     let lock = fs_err::read_to_string(context.temp_dir.join("uv.lock")).unwrap();