Discover named environments from the global workspaces dir

Author: soapy1

crates/pixi_cli/src/cli_config.rs

@@ -6,7 +6,7 @@ use itertools::Itertools;
 use miette::IntoDiagnostic;
 use pep508_rs::Requirement;
 use pixi_build_frontend::BackendOverride;
-use pixi_config::Config;
+use pixi_config::{Config, pixi_home};
 use pixi_consts::consts;
 use pixi_core::DependencyType;
 use pixi_core::Workspace;
@@ -47,10 +47,10 @@ impl WorkspaceConfig {
         if let Some(manifest_path) = &self.manifest_path {
             DiscoveryStart::ExplicitManifest(manifest_path.clone())
         } else if let Some(workspace) = &self.workspace {
-            let config = Config::load_global();
-            let path = config
-                .named_workspace(&workspace.to_string())
-                .expect("Unable to find workspace");
+            let path = pixi_home()
+                .expect("Unable to pixi home")
+                .join(consts::DEFAULT_GLOBAL_WORKSPACE_DIR)
+                .join(&workspace);
             DiscoveryStart::ExplicitManifest(path.clone())
         } else {
             DiscoveryStart::CurrentDir