Feature/add feature env to task cli (#694)

Adds:
```
pixi task remove -f/--feature test 
pixi task list -e/--environment test
```

src/cli/run.rs

@@ -6,6 +6,7 @@ use miette::{miette, Context, Diagnostic, IntoDiagnostic};
 use rattler_conda_types::Platform;
 
 use crate::environment::LockFileUsage;
+use crate::project::errors::UnsupportedPlatformError;
 use crate::task::{
     ExecutableTask, FailedToParseShellScript, InvalidWorkingDirectory, TraversalError,
 };
@@ -90,6 +91,9 @@ enum TaskExecutionError {
 
     #[error(transparent)]
     TraverseError(#[from] TraversalError),
+
+    #[error(transparent)]
+    UnsupportedPlatformError(#[from] UnsupportedPlatformError),
 }
 
 /// Called to execute a single command.
@@ -130,8 +134,8 @@ async fn execute_task<'p>(
     if status_code == 127 {
         let available_tasks = task
             .project()
-            .manifest
-            .tasks(Some(Platform::current()))
+            .default_environment()
+            .tasks(Some(Platform::current()))?
             .into_keys()
             .sorted()
             .collect_vec();

src/cli/task.rs

@@ -1,10 +1,12 @@
-use crate::project::manifest::FeatureName;
+use crate::project::manifest::{EnvironmentName, FeatureName};
 use crate::task::{quote, Alias, CmdArgs, Execute, Task};
 use crate::Project;
 use clap::Parser;
 use itertools::Itertools;
+use miette::miette;
 use rattler_conda_types::Platform;
 use std::path::PathBuf;
+use std::str::FromStr;
 use toml_edit::{Array, Item, Table, Value};
 
 #[derive(Parser, Debug)]
@@ -35,6 +37,10 @@ pub struct RemoveArgs {
     /// The platform for which the task should be removed
     #[arg(long, short)]
     pub platform: Option<Platform>,
+
+    /// The feature for which the task should be removed
+    #[arg(long, short)]
+    pub feature: Option<String>,
 }
 
 #[derive(Parser, Debug, Clone)]
@@ -84,6 +90,11 @@ pub struct AliasArgs {
 pub struct ListArgs {
     #[arg(long, short)]
     pub summary: bool,
+
+    /// The environment the list should be generated for
+    /// If not specified, the default environment is used.
+    #[arg(long, short)]
+    pub environment: Option<String>,
 }
 
 impl From<AddArgs> for Task {
@@ -153,19 +164,22 @@ pub fn execute(args: Args) -> miette::Result<()> {
                 .add_task(name, task.clone(), args.platform, &feature)?;
             project.save()?;
             eprintln!(
-                "{}Added task {}: {}",
+                "{}Added task `{}`: {}",
                 console::style(console::Emoji("✔ ", "+")).green(),
                 console::style(&name).bold(),
                 task,
             );
         }
         Operation::Remove(args) => {
             let mut to_remove = Vec::new();
+            let feature = args
+                .feature
+                .map_or(FeatureName::Default, FeatureName::Named);
             for name in args.names.iter() {
                 if let Some(platform) = args.platform {
                     if !project
                         .manifest
-                        .tasks(Some(platform))
+                        .tasks(Some(platform), &feature)?
                         .contains_key(name.as_str())
                     {
                         eprintln!(
@@ -176,11 +190,16 @@ pub fn execute(args: Args) -> miette::Result<()> {
                         );
                         continue;
                     }
-                } else if !project.manifest.tasks(None).contains_key(name.as_str()) {
+                } else if !project
+                    .manifest
+                    .tasks(None, &feature)?
+                    .contains_key(name.as_str())
+                {
                     eprintln!(
-                        "{}Task {} does not exist",
+                        "{}Task `{}` does not exist for the `{}` feature",
                         console::style(console::Emoji("❌ ", "X")).red(),
                         console::style(&name).bold(),
+                        console::style(&feature).bold(),
                     );
                     continue;
                 }
@@ -207,10 +226,10 @@ pub fn execute(args: Args) -> miette::Result<()> {
             }
 
             for (name, platform) in to_remove {
-                project.manifest.remove_task(name, platform)?;
+                project.manifest.remove_task(name, platform, &feature)?;
                 project.save()?;
                 eprintln!(
-                    "{}Removed task {} ",
+                    "{}Removed task `{}` ",
                     console::style(console::Emoji("✔ ", "+")).green(),
                     console::style(&name).bold(),
                 );
@@ -224,15 +243,18 @@ pub fn execute(args: Args) -> miette::Result<()> {
                 .add_task(name, task.clone(), args.platform, &FeatureName::Default)?;
             project.save()?;
             eprintln!(
-                "{} Added alias {}: {}",
+                "{} Added alias `{}`: {}",
                 console::style("@").blue(),
                 console::style(&name).bold(),
                 task,
             );
         }
         Operation::List(args) => {
+            let env = EnvironmentName::from_str(args.environment.as_deref().unwrap_or("default"))?;
             let tasks = project
-                .tasks(Some(Platform::current()))
+                .environment(&env)
+                .ok_or(miette!("Environment `{}` not found in project", env))?
+                .tasks(Some(Platform::current()))?
                 .into_keys()
                 .collect_vec();
             if tasks.is_empty() {

src/consts.rs

@@ -6,3 +6,5 @@ pub const ENVIRONMENTS_DIR: &str = "envs";
 pub const PYPI_DEPENDENCIES: &str = "pypi-dependencies";
 
 pub const DEFAULT_ENVIRONMENT_NAME: &str = "default";
+
+pub const DEFAULT_FEATURE_NAME: &str = DEFAULT_ENVIRONMENT_NAME;

src/project/environment.rs

@@ -253,7 +253,7 @@ impl<'p> Environment<'p> {
         if let Some(platform) = platform {
             if !self.platforms().contains(&platform) {
                 return Err(UnsupportedPlatformError {
-                    project: self.project,
+                    environments_platforms: self.platforms().into_iter().collect(),
                     environment: self.name().clone(),
                     platform,
                 });

src/project/errors.rs

@@ -11,9 +11,9 @@ use thiserror::Error;
 /// TODO: Make this error better by also explaining to the user why a certain platform was not
 ///  supported and with suggestions as how to fix it.
 #[derive(Debug, Clone)]
-pub struct UnsupportedPlatformError<'p> {
-    /// The project that the platform is not supported for.
-    pub project: &'p Project,
+pub struct UnsupportedPlatformError {
+    /// Platforms supported by the environment
+    pub environments_platforms: Vec<Platform>,
 
     /// The environment that the platform is not supported for.
     pub environment: EnvironmentName,
@@ -22,9 +22,9 @@ pub struct UnsupportedPlatformError<'p> {
     pub platform: Platform,
 }
 
-impl<'p> Error for UnsupportedPlatformError<'p> {}
+impl Error for UnsupportedPlatformError {}
 
-impl<'p> Display for UnsupportedPlatformError<'p> {
+impl Display for UnsupportedPlatformError {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         match &self.environment {
             EnvironmentName::Default => {
@@ -39,16 +39,15 @@ impl<'p> Display for UnsupportedPlatformError<'p> {
     }
 }
 
-impl<'p> Diagnostic for UnsupportedPlatformError<'p> {
+impl Diagnostic for UnsupportedPlatformError {
     fn code(&self) -> Option<Box<dyn Display + '_>> {
         Some(Box::new("unsupported-platform".to_string()))
     }
 
     fn help(&self) -> Option<Box<dyn Display + '_>> {
-        let env = self.project.environment(&self.environment)?;
         Some(Box::new(format!(
             "supported platforms are {}",
-            env.platforms().into_iter().format(", ")
+            self.environments_platforms.iter().format(", ")
         )))
     }
 

src/project/manifest/environment.rs

@@ -5,6 +5,7 @@ use miette::Diagnostic;
 use regex::Regex;
 use serde::{self, Deserialize, Deserializer};
 use std::borrow::Borrow;
+use std::fmt;
 use std::hash::{Hash, Hasher};
 use std::str::FromStr;
 use thiserror::Error;
@@ -38,6 +39,16 @@ impl Borrow<str> for EnvironmentName {
         self.as_str()
     }
 }
+
+impl fmt::Display for EnvironmentName {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            EnvironmentName::Default => write!(f, "{}", consts::DEFAULT_ENVIRONMENT_NAME),
+            EnvironmentName::Named(name) => write!(f, "{}", name),
+        }
+    }
+}
+
 #[derive(Debug, Clone, Error, Diagnostic, PartialEq)]
 #[error("Failed to parse environment name '{attempted_parse}', please use only lowercase letters, numbers and dashes")]
 pub struct ParseEnvironmentNameError {

src/project/manifest/feature.rs

@@ -28,7 +28,7 @@ impl<'de> Deserialize<'de> for FeatureName {
         D: serde::Deserializer<'de>,
     {
         match String::deserialize(deserializer)?.as_str() {
-            consts::DEFAULT_ENVIRONMENT_NAME => Err(D::Error::custom(
+            consts::DEFAULT_FEATURE_NAME => Err(D::Error::custom(
                 "The name 'default' is reserved for the default feature",
             )),
             name => Ok(FeatureName::Named(name.to_string())),
@@ -39,7 +39,7 @@ impl<'de> Deserialize<'de> for FeatureName {
 impl<'s> From<&'s str> for FeatureName {
     fn from(value: &'s str) -> Self {
         match value {
-            consts::DEFAULT_ENVIRONMENT_NAME => FeatureName::Default,
+            consts::DEFAULT_FEATURE_NAME => FeatureName::Default,
             name => FeatureName::Named(name.to_string()),
         }
     }
@@ -54,7 +54,7 @@ impl FeatureName {
     }
 
     pub fn as_str(&self) -> &str {
-        self.name().unwrap_or(consts::DEFAULT_ENVIRONMENT_NAME)
+        self.name().unwrap_or(consts::DEFAULT_FEATURE_NAME)
     }
 }
 
@@ -67,23 +67,23 @@ impl Borrow<str> for FeatureName {
 impl From<FeatureName> for String {
     fn from(name: FeatureName) -> Self {
         match name {
-            FeatureName::Default => consts::DEFAULT_ENVIRONMENT_NAME.to_string(),
+            FeatureName::Default => consts::DEFAULT_FEATURE_NAME.to_string(),
             FeatureName::Named(name) => name,
         }
     }
 }
 impl<'a> From<&'a FeatureName> for String {
     fn from(name: &'a FeatureName) -> Self {
         match name {
-            FeatureName::Default => consts::DEFAULT_ENVIRONMENT_NAME.to_string(),
+            FeatureName::Default => consts::DEFAULT_FEATURE_NAME.to_string(),
             FeatureName::Named(name) => name.clone(),
         }
     }
 }
 impl fmt::Display for FeatureName {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
-            FeatureName::Default => write!(f, "{}", consts::DEFAULT_ENVIRONMENT_NAME),
+            FeatureName::Default => write!(f, "{}", consts::DEFAULT_FEATURE_NAME),
             FeatureName::Named(name) => write!(f, "{}", name),
         }
     }

src/project/manifest/mod.rs

@@ -19,7 +19,7 @@ pub use feature::{Feature, FeatureName};
 use indexmap::{Equivalent, IndexMap};
 use itertools::Itertools;
 pub use metadata::ProjectMetadata;
-use miette::{miette, IntoDiagnostic, LabeledSpan, NamedSource};
+use miette::{miette, Diagnostic, IntoDiagnostic, LabeledSpan, NamedSource};
 pub use python::PyPiRequirement;
 use rattler_conda_types::{
     Channel, ChannelConfig, MatchSpec, NamelessMatchSpec, PackageName, Platform, Version,
@@ -33,8 +33,16 @@ use std::{
 };
 pub use system_requirements::{LibCFamilyAndVersion, LibCSystemRequirement, SystemRequirements};
 pub use target::{Target, TargetSelector, Targets};
+use thiserror::Error;
 use toml_edit::{value, Array, Document, Item, Table, TomlError, Value};
 
+/// Errors that can occur when getting a feature.
+#[derive(Debug, Clone, Error, Diagnostic)]
+pub enum GetFeatureError {
+    #[error("feature `{0}` does not exist")]
+    FeatureDoesNotExist(FeatureName),
+}
+
 /// Handles the project's manifest file.
 /// This struct is responsible for reading, parsing, editing, and saving the manifest.
 /// It encapsulates all logic related to the manifest's TOML format and structure.
@@ -125,16 +133,23 @@ impl Manifest {
 
     /// Returns a hashmap of the tasks that should run only the given platform. If the platform is
     /// `None`, only the default targets tasks are returned.
-    pub fn tasks(&self, platform: Option<Platform>) -> HashMap<&str, &Task> {
-        self.default_feature()
+    pub fn tasks(
+        &self,
+        platform: Option<Platform>,
+        feature_name: &FeatureName,
+    ) -> Result<HashMap<&str, &Task>, GetFeatureError> {
+        Ok(self
+            .feature(feature_name)
+            // Return error if feature does not exist
+            .ok_or(GetFeatureError::FeatureDoesNotExist(feature_name.clone()))?
             .targets
             .resolve(platform)
             .collect_vec()
             .into_iter()
             .rev()
             .flat_map(|target| target.tasks.iter())
             .map(|(name, task)| (name.as_str(), task))
-            .collect()
+            .collect())
     }
 
     /// Add a task to the project
@@ -146,8 +161,10 @@ impl Manifest {
         feature_name: &FeatureName,
     ) -> miette::Result<()> {
         // Check if the task already exists
-        if self.tasks(platform).contains_key(name.as_ref()) {
-            miette::bail!("task {} already exists", name.as_ref());
+        if let Ok(tasks) = self.tasks(platform, feature_name) {
+            if tasks.contains_key(name.as_ref()) {
+                miette::bail!("task {} already exists", name.as_ref());
+            }
         }
 
         // Get the table that contains the tasks.
@@ -171,20 +188,22 @@ impl Manifest {
         &mut self,
         name: impl AsRef<str>,
         platform: Option<Platform>,
+        feature_name: &FeatureName,
     ) -> miette::Result<()> {
-        self.tasks(platform)
+        self.tasks(platform, feature_name)?
             .get(name.as_ref())
             .ok_or_else(|| miette::miette!("task {} does not exist", name.as_ref()))?;
 
         // Get the task table either from the target platform or the default tasks.
         let tasks_table =
-            get_or_insert_toml_table(&mut self.document, platform, &FeatureName::Default, "tasks")?;
+            get_or_insert_toml_table(&mut self.document, platform, feature_name, "tasks")?;
 
         // If it does not exist in toml, consider this ok as we want to remove it anyways
         tasks_table.remove(name.as_ref());
 
         // Remove the task from the internal manifest
-        self.default_feature_mut()
+        self.feature_mut(feature_name)
+            .expect("feature should exist")
             .targets
             .for_opt_target_mut(platform.map(TargetSelector::from).as_ref())
             .map(|target| target.tasks.remove(name.as_ref()));
@@ -499,14 +518,22 @@ impl Manifest {
         self.parsed.default_feature_mut()
     }
 
-    /// Returns the feature with the given name or `None` if it does not exist.
+    /// Returns the mutable feature with the given name or `None` if it does not exist.
     pub fn feature_mut<Q: ?Sized>(&mut self, name: &Q) -> Option<&mut Feature>
     where
         Q: Hash + Equivalent<FeatureName>,
     {
         self.parsed.features.get_mut(name)
     }
 
+    /// Returns the feature with the given name or `None` if it does not exist.
+    pub fn feature<Q: ?Sized>(&self, name: &Q) -> Option<&Feature>
+    where
+        Q: Hash + Equivalent<FeatureName>,
+    {
+        self.parsed.features.get(name)
+    }
+
     /// Returns the default environment
     ///
     /// This is the environment that is added implicitly as the environment with only the default