Add --package argument to uv add and uv remove (#4556)

## Summary

Closes #4550.

crates/uv-cli/src/lib.rs

@@ -1639,6 +1639,10 @@ pub struct RunArgs {
     #[command(flatten)]
     pub refresh: RefreshArgs,
 
+    /// Run the command in a specific package in the workspace.
+    #[arg(long, conflicts_with = "isolated")]
+    pub package: Option<PackageName>,
+
     /// The Python interpreter to use to build the run environment.
     ///
     /// By default, `uv` uses the virtual environment in the current working directory or any parent
@@ -1652,10 +1656,6 @@ pub struct RunArgs {
     /// - `/home/ferris/.local/bin/python3.10` uses the exact Python at the given path.
     #[arg(long, short, env = "UV_PYTHON", verbatim_doc_comment)]
     pub python: Option<String>,
-
-    /// Run the command in a different package in the workspace.
-    #[arg(long, conflicts_with = "isolated")]
-    pub package: Option<PackageName>,
 }
 
 #[derive(Args)]
@@ -1784,6 +1784,10 @@ pub struct AddArgs {
     #[command(flatten)]
     pub refresh: RefreshArgs,
 
+    /// Add the dependency to a specific package in the workspace.
+    #[arg(long, conflicts_with = "isolated")]
+    pub package: Option<PackageName>,
+
     /// The Python interpreter into which packages should be installed.
     ///
     /// By default, `uv` installs into the virtual environment in the current working directory or
@@ -1811,6 +1815,10 @@ pub struct RemoveArgs {
     #[arg(long)]
     pub dev: bool,
 
+    /// Remove the dependency from a specific package in the workspace.
+    #[arg(long, conflicts_with = "isolated")]
+    pub package: Option<PackageName>,
+
     /// The Python interpreter into which packages should be installed.
     ///
     /// By default, `uv` installs into the virtual environment in the current working directory or

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

@@ -1,4 +1,4 @@
-use anyhow::Result;
+use anyhow::{Context, Result};
 use uv_client::{BaseClientBuilder, Connectivity, FlatIndexClient, RegistryClientBuilder};
 use uv_dispatch::BuildDispatch;
 use uv_distribution::pyproject::{Source, SourceError};
@@ -11,7 +11,8 @@ use uv_types::{BuildIsolation, HashStrategy, InFlight};
 
 use uv_cache::Cache;
 use uv_configuration::{Concurrency, ExtrasSpecification, PreviewMode, SetupPyStrategy};
-use uv_distribution::{DistributionDatabase, ProjectWorkspace};
+use uv_distribution::{DistributionDatabase, ProjectWorkspace, Workspace};
+use uv_normalize::PackageName;
 use uv_warnings::warn_user;
 
 use crate::commands::pip::operations::Modifications;
@@ -32,6 +33,7 @@ pub(crate) async fn add(
     rev: Option<String>,
     tag: Option<String>,
     branch: Option<String>,
+    package: Option<PackageName>,
     python: Option<String>,
     settings: ResolverInstallerSettings,
     toolchain_preference: ToolchainPreference,
@@ -46,8 +48,15 @@ pub(crate) async fn add(
         warn_user!("`uv add` is experimental and may change without warning.");
     }
 
-    // Find the project requirements.
-    let project = ProjectWorkspace::discover(&std::env::current_dir()?, None).await?;
+    // Find the project in the workspace.
+    let project = if let Some(package) = package {
+        Workspace::discover(&std::env::current_dir()?, None)
+            .await?
+            .with_current_project(package.clone())
+            .with_context(|| format!("Package `{package}` not found in workspace"))?
+    } else {
+        ProjectWorkspace::discover(&std::env::current_dir()?, None).await?
+    };
 
     // Discover or create the virtual environment.
     let venv = project::init_environment(

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

@@ -1,11 +1,11 @@
-use anyhow::Result;
+use anyhow::{Context, Result};
 
 use pep508_rs::PackageName;
 use uv_cache::Cache;
 use uv_client::Connectivity;
 use uv_configuration::{Concurrency, ExtrasSpecification, PreviewMode};
 use uv_distribution::pyproject_mut::PyProjectTomlMut;
-use uv_distribution::ProjectWorkspace;
+use uv_distribution::{ProjectWorkspace, Workspace};
 use uv_toolchain::{ToolchainPreference, ToolchainRequest};
 use uv_warnings::warn_user;
 
@@ -19,6 +19,7 @@ use crate::settings::{InstallerSettings, ResolverSettings};
 pub(crate) async fn remove(
     requirements: Vec<PackageName>,
     dev: bool,
+    package: Option<PackageName>,
     python: Option<String>,
     toolchain_preference: ToolchainPreference,
     preview: PreviewMode,
@@ -32,8 +33,15 @@ pub(crate) async fn remove(
         warn_user!("`uv remove` is experimental and may change without warning.");
     }
 
-    // Find the project requirements.
-    let project = ProjectWorkspace::discover(&std::env::current_dir()?, None).await?;
+    // Find the project in the workspace.
+    let project = if let Some(package) = package {
+        Workspace::discover(&std::env::current_dir()?, None)
+            .await?
+            .with_current_project(package.clone())
+            .with_context(|| format!("Package `{package}` not found in workspace"))?
+    } else {
+        ProjectWorkspace::discover(&std::env::current_dir()?, None).await?
+    };
 
     let mut pyproject = PyProjectTomlMut::from_toml(project.current_project().pyproject_toml())?;
     for req in requirements {
@@ -47,7 +55,7 @@ pub(crate) async fn remove(
                     .filter(|deps| !deps.is_empty())
                     .is_some()
                 {
-                    uv_warnings::warn_user!("`{req}` is not a development dependency; try calling `uv remove` without the `--dev` flag");
+                    warn_user!("`{req}` is not a development dependency; try calling `uv remove` without the `--dev` flag");
                 }
 
                 anyhow::bail!("The dependency `{req}` could not be found in `dev-dependencies`");
@@ -65,9 +73,7 @@ pub(crate) async fn remove(
                 .filter(|deps| !deps.is_empty())
                 .is_some()
             {
-                uv_warnings::warn_user!(
-                    "`{req}` is a development dependency; try calling `uv remove --dev`"
-                );
+                warn_user!("`{req}` is a development dependency; try calling `uv remove --dev`");
             }
 
             anyhow::bail!("The dependency `{req}` could not be found in `dependencies`");

crates/uv/src/main.rs

@@ -726,6 +726,7 @@ async fn run() -> Result<ExitStatus> {
                 args.rev,
                 args.tag,
                 args.branch,
+                args.package,
                 args.python,
                 args.settings,
                 globals.toolchain_preference,
@@ -749,6 +750,7 @@ async fn run() -> Result<ExitStatus> {
             commands::remove(
                 args.requirements,
                 args.dev,
+                args.package,
                 args.python,
                 globals.toolchain_preference,
                 globals.preview,

crates/uv/src/settings.rs

@@ -147,8 +147,8 @@ pub(crate) struct RunSettings {
     pub(crate) dev: bool,
     pub(crate) command: ExternalCommand,
     pub(crate) with: Vec<String>,
-    pub(crate) python: Option<String>,
     pub(crate) package: Option<PackageName>,
+    pub(crate) python: Option<String>,
     pub(crate) refresh: Refresh,
     pub(crate) settings: ResolverInstallerSettings,
 }
@@ -168,8 +168,8 @@ impl RunSettings {
             installer,
             build,
             refresh,
-            python,
             package,
+            python,
         } = args;
 
         Self {
@@ -180,8 +180,8 @@ impl RunSettings {
             dev: flag(dev, no_dev).unwrap_or(true),
             command,
             with,
-            python,
             package,
+            python,
             refresh: Refresh::from(refresh),
             settings: ResolverInstallerSettings::combine(
                 resolver_installer_options(installer, build),
@@ -438,6 +438,7 @@ pub(crate) struct AddSettings {
     pub(crate) rev: Option<String>,
     pub(crate) tag: Option<String>,
     pub(crate) branch: Option<String>,
+    pub(crate) package: Option<PackageName>,
     pub(crate) python: Option<String>,
     pub(crate) refresh: Refresh,
     pub(crate) settings: ResolverInstallerSettings,
@@ -459,6 +460,7 @@ impl AddSettings {
             installer,
             build,
             refresh,
+            package,
             python,
         } = args;
 
@@ -476,6 +478,7 @@ impl AddSettings {
             rev,
             tag,
             branch,
+            package,
             python,
             refresh: Refresh::from(refresh),
             settings: ResolverInstallerSettings::combine(
@@ -492,6 +495,7 @@ impl AddSettings {
 pub(crate) struct RemoveSettings {
     pub(crate) requirements: Vec<PackageName>,
     pub(crate) dev: bool,
+    pub(crate) package: Option<PackageName>,
     pub(crate) python: Option<String>,
 }
 
@@ -502,12 +506,14 @@ impl RemoveSettings {
         let RemoveArgs {
             dev,
             requirements,
+            package,
             python,
         } = args;
 
         Self {
             requirements,
             dev,
+            package,
             python,
         }
     }

crates/uv/tests/edit.rs

@@ -740,7 +740,9 @@ fn add_remove_workspace() -> Result<()> {
     add_cmd
         .arg("--preview")
         .arg("--workspace")
-        .current_dir(&child1);
+        .arg("--package")
+        .arg("child1")
+        .current_dir(&context.temp_dir);
 
     uv_snapshot!(context.filters(), add_cmd, @r###"
     success: true