Add --group support to uv add and uv remove (#8108)

Part of #8090

Adds the ability to add and remove dependencies from arbitrary groups
using `uv add` and `uv remove`. Does not include resolving with the new
dependencies — tackling that in #8110.

Additionally, this does not yet resolve interactions with the existing
`dev` group — we'll tackle that separately as well. I probably won't
merge the stack until that design is resolved.

crates/uv-cli/src/lib.rs

@@ -15,7 +15,7 @@ use uv_configuration::{
     ProjectBuildBackend, TargetTriple, TrustedHost, TrustedPublishing, VersionControlSystem,
 };
 use uv_distribution_types::{Index, IndexUrl, Origin, PipExtraIndex, PipFindLinks, PipIndex};
-use uv_normalize::{ExtraName, PackageName};
+use uv_normalize::{ExtraName, GroupName, PackageName};
 use uv_pep508::Requirement;
 use uv_pypi_types::VerbatimParsedUrl;
 use uv_python::{PythonDownloads, PythonPreference, PythonVersion};
@@ -2953,7 +2953,7 @@ pub struct AddArgs {
     pub requirements: Vec<PathBuf>,
 
     /// Add the requirements as development dependencies.
-    #[arg(long, conflicts_with("optional"))]
+    #[arg(long, conflicts_with("optional"), conflicts_with("group"))]
     pub dev: bool,
 
     /// Add the requirements to the specified optional dependency group.
@@ -2963,9 +2963,15 @@ pub struct AddArgs {
     ///
     /// To enable an optional dependency group for this requirement instead, see
     /// `--extra`.
-    #[arg(long, conflicts_with("dev"))]
+    #[arg(long, conflicts_with("dev"), conflicts_with("group"))]
     pub optional: Option<ExtraName>,
 
+    /// Add the requirements to the specified local dependency group.
+    ///
+    /// These requirements will not be included in the published metadata for the project.
+    #[arg(long, conflicts_with("dev"), conflicts_with("optional"))]
+    pub group: Option<GroupName>,
+
     /// Add the requirements as editable.
     #[arg(long, overrides_with = "no_editable")]
     pub editable: bool,
@@ -3071,13 +3077,17 @@ pub struct RemoveArgs {
     pub packages: Vec<PackageName>,
 
     /// Remove the packages from the development dependencies.
-    #[arg(long, conflicts_with("optional"))]
+    #[arg(long, conflicts_with("optional"), conflicts_with("group"))]
     pub dev: bool,
 
     /// Remove the packages from the specified optional dependency group.
-    #[arg(long, conflicts_with("dev"))]
+    #[arg(long, conflicts_with("dev"), conflicts_with("group"))]
     pub optional: Option<ExtraName>,
 
+    /// Remove the packages from the specified local dependency group.
+    #[arg(long, conflicts_with("dev"), conflicts_with("optional"))]
+    pub group: Option<GroupName>,
+
     /// Avoid syncing the virtual environment after re-locking the project.
     #[arg(long, env = EnvVars::UV_NO_SYNC, value_parser = clap::builder::BoolishValueParser::new(), conflicts_with = "frozen")]
     pub no_sync: bool,

crates/uv-configuration/src/dev.rs

@@ -1,5 +1,5 @@
 use either::Either;
-use uv_normalize::GroupName;
+use uv_normalize::{GroupName, DEV_DEPENDENCIES};
 
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
 pub enum DevMode {
@@ -27,17 +27,17 @@ impl DevMode {
     }
 }
 
-#[derive(Debug, Copy, Clone)]
-pub enum DevSpecification<'group> {
+#[derive(Debug, Clone)]
+pub enum DevSpecification {
     /// Include dev dependencies from the specified group.
-    Include(&'group [GroupName]),
+    Include(Vec<GroupName>),
     /// Do not include dev dependencies.
     Exclude,
-    /// Include dev dependencies from the specified group, and exclude all non-dev dependencies.
-    Only(&'group [GroupName]),
+    /// Include dev dependencies from the specified groups, and exclude all non-dev dependencies.
+    Only(Vec<GroupName>),
 }
 
-impl<'group> DevSpecification<'group> {
+impl DevSpecification {
     /// Returns an [`Iterator`] over the group names to include.
     pub fn iter(&self) -> impl Iterator<Item = &GroupName> {
         match self {
@@ -51,3 +51,13 @@ impl<'group> DevSpecification<'group> {
         matches!(self, Self::Exclude | Self::Include(_))
     }
 }
+
+impl From<DevMode> for DevSpecification {
+    fn from(mode: DevMode) -> Self {
+        match mode {
+            DevMode::Include => Self::Include(vec![DEV_DEPENDENCIES.clone()]),
+            DevMode::Exclude => Self::Exclude,
+            DevMode::Only => Self::Only(vec![DEV_DEPENDENCIES.clone()]),
+        }
+    }
+}

crates/uv-distribution/src/metadata/mod.rs

@@ -7,7 +7,8 @@ use uv_configuration::{LowerBound, SourceStrategy};
 use uv_distribution_types::IndexLocations;
 use uv_normalize::{ExtraName, GroupName, PackageName};
 use uv_pep440::{Version, VersionSpecifiers};
-use uv_pypi_types::{HashDigest, ResolutionMetadata};
+use uv_pep508::Pep508Error;
+use uv_pypi_types::{HashDigest, ResolutionMetadata, VerbatimParsedUrl};
 use uv_workspace::WorkspaceError;
 
 pub use crate::metadata::lowering::LoweredRequirement;
@@ -21,10 +22,16 @@ mod requires_dist;
 pub enum MetadataError {
     #[error(transparent)]
     Workspace(#[from] WorkspaceError),
-    #[error("Failed to parse entry for: `{0}`")]
-    LoweringError(PackageName, #[source] LoweringError),
-    #[error(transparent)]
-    Lower(#[from] LoweringError),
+    #[error("Failed to parse entry: `{0}`")]
+    LoweringError(PackageName, #[source] Box<LoweringError>),
+    #[error("Failed to parse entry in `{0}`: `{1}`")]
+    GroupLoweringError(GroupName, PackageName, #[source] Box<LoweringError>),
+    #[error("Failed to parse entry in `{0}`: `{1}`")]
+    GroupParseError(
+        GroupName,
+        String,
+        #[source] Box<Pep508Error<VerbatimParsedUrl>>,
+    ),
 }
 
 #[derive(Debug, Clone)]

crates/uv-distribution/src/metadata/requires_dist.rs

@@ -3,10 +3,13 @@ use crate::Metadata;
 
 use std::collections::BTreeMap;
 use std::path::Path;
+use std::str::FromStr;
+
 use uv_configuration::{LowerBound, SourceStrategy};
 use uv_distribution_types::IndexLocations;
 use uv_normalize::{ExtraName, GroupName, PackageName, DEV_DEPENDENCIES};
-use uv_workspace::pyproject::ToolUvSources;
+use uv_pypi_types::VerbatimParsedUrl;
+use uv_workspace::pyproject::{Sources, ToolUvSources};
 use uv_workspace::{DiscoveryOptions, ProjectWorkspace};
 
 #[derive(Debug, Clone)]
@@ -97,48 +100,71 @@ impl RequiresDist {
         };
 
         let dev_dependencies = {
+            // First, collect `tool.uv.dev_dependencies`
             let dev_dependencies = project_workspace
                 .current_project()
                 .pyproject_toml()
                 .tool
                 .as_ref()
                 .and_then(|tool| tool.uv.as_ref())
-                .and_then(|uv| uv.dev_dependencies.as_ref())
-                .into_iter()
+                .and_then(|uv| uv.dev_dependencies.as_ref());
+
+            // Then, collect `dependency-groups`
+            let dependency_groups = project_workspace
+                .current_project()
+                .pyproject_toml()
+                .dependency_groups
+                .iter()
                 .flatten()
-                .cloned();
-            let dev_dependencies = match source_strategy {
-                SourceStrategy::Enabled => dev_dependencies
-                    .flat_map(|requirement| {
-                        let requirement_name = requirement.name.clone();
-                        LoweredRequirement::from_requirement(
-                            requirement,
-                            &metadata.name,
-                            project_workspace.project_root(),
+                .map(|(name, requirements)| {
+                    (
+                        name.clone(),
+                        requirements
+                            .iter()
+                            .map(|requirement| {
+                                match uv_pep508::Requirement::<VerbatimParsedUrl>::from_str(
+                                    requirement,
+                                ) {
+                                    Ok(requirement) => Ok(requirement),
+                                    Err(err) => Err(MetadataError::GroupParseError(
+                                        name.clone(),
+                                        requirement.clone(),
+                                        Box::new(err),
+                                    )),
+                                }
+                            })
+                            .collect::<Result<Vec<_>, _>>(),
+                    )
+                })
+                .chain(
+                    // Only add the `dev` group if `dev-dependencies` is defined
+                    dev_dependencies
+                        .into_iter()
+                        .map(|requirements| (DEV_DEPENDENCIES.clone(), Ok(requirements.clone()))),
+                )
+                .map(|(name, requirements)| {
+                    // Apply sources to the requirements
+                    match requirements {
+                        Ok(requirements) => match apply_source_strategy(
+                            source_strategy,
+                            requirements,
+                            &metadata,
                             project_sources,
                             project_indexes,
                             locations,
-                            project_workspace.workspace(),
+                            project_workspace,
                             lower_bound,
-                        )
-                        .map(move |requirement| match requirement {
-                            Ok(requirement) => Ok(requirement.into_inner()),
-                            Err(err) => {
-                                Err(MetadataError::LoweringError(requirement_name.clone(), err))
-                            }
-                        })
-                    })
-                    .collect::<Result<Vec<_>, _>>()?,
-                SourceStrategy::Disabled => dev_dependencies
-                    .into_iter()
-                    .map(uv_pypi_types::Requirement::from)
-                    .collect(),
-            };
-            if dev_dependencies.is_empty() {
-                BTreeMap::default()
-            } else {
-                BTreeMap::from([(DEV_DEPENDENCIES.clone(), dev_dependencies)])
-            }
+                            &name,
+                        ) {
+                            Ok(requirements) => Ok((name, requirements)),
+                            Err(err) => Err(err),
+                        },
+                        Err(err) => Err(err),
+                    }
+                })
+                .collect::<Result<Vec<_>, _>>()?;
+
+            dependency_groups.into_iter().collect::<BTreeMap<_, _>>()
         };
 
         let requires_dist = metadata.requires_dist.into_iter();
@@ -158,9 +184,10 @@ impl RequiresDist {
                     )
                     .map(move |requirement| match requirement {
                         Ok(requirement) => Ok(requirement.into_inner()),
-                        Err(err) => {
-                            Err(MetadataError::LoweringError(requirement_name.clone(), err))
-                        }
+                        Err(err) => Err(MetadataError::LoweringError(
+                            requirement_name.clone(),
+                            Box::new(err),
+                        )),
                     })
                 })
                 .collect::<Result<Vec<_>, _>>()?,
@@ -190,6 +217,49 @@ impl From<Metadata> for RequiresDist {
     }
 }
 
+fn apply_source_strategy(
+    source_strategy: SourceStrategy,
+    requirements: Vec<uv_pep508::Requirement<VerbatimParsedUrl>>,
+    metadata: &uv_pypi_types::RequiresDist,
+    project_sources: &BTreeMap<PackageName, Sources>,
+    project_indexes: &[uv_distribution_types::Index],
+    locations: &IndexLocations,
+    project_workspace: &ProjectWorkspace,
+    lower_bound: LowerBound,
+    group_name: &GroupName,
+) -> Result<Vec<uv_pypi_types::Requirement>, MetadataError> {
+    match source_strategy {
+        SourceStrategy::Enabled => requirements
+            .into_iter()
+            .flat_map(|requirement| {
+                let requirement_name = requirement.name.clone();
+                LoweredRequirement::from_requirement(
+                    requirement,
+                    &metadata.name,
+                    project_workspace.project_root(),
+                    project_sources,
+                    project_indexes,
+                    locations,
+                    project_workspace.workspace(),
+                    lower_bound,
+                )
+                .map(move |requirement| match requirement {
+                    Ok(requirement) => Ok(requirement.into_inner()),
+                    Err(err) => Err(MetadataError::GroupLoweringError(
+                        group_name.clone(),
+                        requirement_name.clone(),
+                        Box::new(err),
+                    )),
+                })
+            })
+            .collect::<Result<Vec<_>, _>>(),
+        SourceStrategy::Disabled => Ok(requirements
+            .into_iter()
+            .map(uv_pypi_types::Requirement::from)
+            .collect()),
+    }
+}
+
 #[cfg(test)]
 mod test {
     use std::path::Path;
@@ -255,7 +325,7 @@ mod test {
         "#};
 
         assert_snapshot!(format_err(input).await, @r###"
-        error: Failed to parse entry for: `tqdm`
+        error: Failed to parse entry: `tqdm`
           Caused by: Can't combine URLs from both `project.dependencies` and `tool.uv.sources`
         "###);
     }
@@ -422,7 +492,7 @@ mod test {
         "#};
 
         assert_snapshot!(format_err(input).await, @r###"
-        error: Failed to parse entry for: `tqdm`
+        error: Failed to parse entry: `tqdm`
           Caused by: Can't combine URLs from both `project.dependencies` and `tool.uv.sources`
         "###);
     }
@@ -441,7 +511,7 @@ mod test {
         "#};
 
         assert_snapshot!(format_err(input).await, @r###"
-        error: Failed to parse entry for: `tqdm`
+        error: Failed to parse entry: `tqdm`
           Caused by: Package is not included as workspace package in `tool.uv.workspace`
         "###);
     }

crates/uv-normalize/src/group_name.rs

@@ -3,7 +3,7 @@ use std::fmt::{Display, Formatter};
 use std::str::FromStr;
 use std::sync::LazyLock;
 
-use serde::{Deserialize, Deserializer};
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
 
 use crate::{validate_and_normalize_owned, validate_and_normalize_ref, InvalidNameError};
 
@@ -41,6 +41,15 @@ impl<'de> Deserialize<'de> for GroupName {
     }
 }
 
+impl Serialize for GroupName {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        self.0.serialize(serializer)
+    }
+}
+
 impl Display for GroupName {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)

crates/uv-resolver/src/lock/mod.rs

@@ -580,7 +580,7 @@ impl Lock {
         marker_env: &ResolverMarkerEnvironment,
         tags: &Tags,
         extras: &ExtrasSpecification,
-        dev: DevSpecification<'_>,
+        dev: &DevSpecification,
         build_options: &BuildOptions,
         install_options: &InstallOptions,
     ) -> Result<Resolution, LockError> {

crates/uv-resolver/src/lock/requirements_txt.rs

@@ -43,7 +43,7 @@ impl<'lock> RequirementsTxtExport<'lock> {
         lock: &'lock Lock,
         root_name: &PackageName,
         extras: &ExtrasSpecification,
-        dev: DevSpecification<'_>,
+        dev: &DevSpecification,
         editable: EditableMode,
         hashes: bool,
         install_options: &'lock InstallOptions,