feat: Add hint for adding members to workspace

Author: linyihai

src/cargo/ops/cargo_new.rs

@@ -845,6 +845,7 @@ fn mk(config: &Config, opts: &MkOptions<'_>) -> CargoResult<()> {
 
                 // Try to add the new package to the workspace members.
                 update_manifest_with_new_member(
+                    config,
                     &root_manifest_path,
                     &mut workspace_document,
                     &display_path,
@@ -962,6 +963,7 @@ fn update_manifest_with_inherited_workspace_package_keys(
 /// - If [workspace.members] doesn't exist in the manifest, it will add a new section
 /// with the new package in it.
 fn update_manifest_with_new_member(
+    config: &Config,
     root_manifest_path: &Path,
     workspace_document: &mut toml_edit::Document,
     display_path: &str,
@@ -992,11 +994,25 @@ fn update_manifest_with_new_member(
             if was_sorted {
                 members.sort_by(|lhs, rhs| lhs.as_str().cmp(&rhs.as_str()));
             }
+            config.shell().status(
+                "Adding",
+                format!(
+                    "`{display_path}` as member of workspace at `{}`",
+                    root_manifest_path.parent().unwrap().display()
+                ),
+            )?
         } else {
             let mut array = Array::new();
             array.push(display_path);
 
             workspace["members"] = toml_edit::value(array);
+            config.shell().status(
+                "Adding",
+                format!(
+                    "`{display_path}` as member of workspace at `{}`",
+                    root_manifest_path.parent().unwrap().display()
+                ),
+            )?
         }
     }
 

tests/testsuite/cargo_init/workspace_add_member/stderr.log

@@ -1,2 +1,3 @@
     Creating binary (application) package
+      Adding `crates/foo` as member of workspace at `[ROOT]/case`
 note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

tests/testsuite/cargo_new/add_members_to_workspace_format_previous_items/stderr.log

@@ -1,2 +1,3 @@
     Creating binary (application) `foo` package
+      Adding `crates/foo` as member of workspace at `[ROOT]/case`
 note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

tests/testsuite/cargo_new/add_members_to_workspace_format_sorted/stderr.log

@@ -1,2 +1,3 @@
     Creating binary (application) `foo` package
+      Adding `crates/foo` as member of workspace at `[ROOT]/case`
 note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

tests/testsuite/cargo_new/add_members_to_workspace_with_absolute_package_path/stderr.log

@@ -1,2 +1,3 @@
     Creating binary (application) `foo` package
+      Adding `crates/foo` as member of workspace at `[ROOT]/case`
 note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

tests/testsuite/cargo_new/add_members_to_workspace_with_empty_members/stderr.log

@@ -1,2 +1,3 @@
     Creating binary (application) `foo` package
+      Adding `crates/foo` as member of workspace at `[ROOT]/case`
 note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

tests/testsuite/cargo_new/add_members_to_workspace_without_members/stderr.log

@@ -1,2 +1,3 @@
     Creating library `bar` package
+      Adding `bar` as member of workspace at `[ROOT]/case`
 note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html