clean err msg

src/cargo/ops/registry.rs

@@ -92,24 +92,16 @@ pub struct PublishOpts<'cfg> {
 pub fn publish(ws: &Workspace<'_>, opts: &PublishOpts<'_>) -> CargoResult<()> {
     let specs = opts.to_publish.to_package_id_specs(ws)?;
     if specs.len() > 1 {
-        match opts.to_publish {
-            Packages::Default => {
-                bail!("must be specified to select a single package to publish. Check `default-members` or using `-p` argument")
-            }
-            Packages::Packages(_) => {
-                bail!("the `-p` argument must be specified to select a single package to publish")
-            }
-            _ => {}
-        }
+        bail!("the `-p` argument must be specified to select a single package to publish")
     }
-    if Packages::Packages(vec![]) != opts.to_publish && ws.is_virtual() {
+    if Packages::Default == opts.to_publish && ws.is_virtual() {
         bail!("the `-p` argument must be specified in the root of a virtual workspace")
     }
     let member_ids = ws.members().map(|p| p.package_id());
     // Check that the spec matches exactly one member.
     specs[0].query(member_ids)?;
     let mut pkgs = ws.members_with_features(&specs, &opts.cli_features)?;
-    // In `members_with_features_old`, it will add "current" package(determined by the cwd). Line:1455 in workspace.rs.
+    // In `members_with_features_old`, it will add "current" package (determined by the cwd)
     // So we need filter
     pkgs = pkgs
         .into_iter()

tests/testsuite/publish.rs

@@ -1754,7 +1754,7 @@ fn with_duplicate_spec_in_members() {
     p.cargo("publish --no-verify --token sekrit")
         .with_status(101)
         .with_stderr(
-            "error: must be specified to select a single package to publish. Check `default-members` or using `-p` argument",
+            "error: the `-p` argument must be specified to select a single package to publish",
         )
         .run();
 }
@@ -1837,6 +1837,56 @@ fn in_virtual_workspace() {
         .run();
 }
 
+#[cargo_test]
+fn in_virtual_workspace_with_p() {
+    registry::init();
+
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [workspace]
+                members = ["foo","li"]
+            "#,
+        )
+        .file(
+            "foo/Cargo.toml",
+            r#"
+                [project]
+                name = "foo"
+                version = "0.0.1"
+                authors = []
+                license = "MIT"
+                description = "foo"
+            "#,
+        )
+        .file("foo/src/main.rs", "fn main() {}")
+        .file(
+            "li/Cargo.toml",
+            r#"
+                [package]
+                name = "li"
+                version = "0.0.1"
+                description = "li"
+                license = "MIT"
+            "#,
+        )
+        .file("li/src/main.rs", "fn main() {}")
+        .build();
+
+    p.cargo("publish -p li --no-verify --token sekrit")
+        .with_stderr(
+            "\
+[UPDATING] [..]
+[WARNING] manifest has no documentation, homepage or repository.
+See [..]
+[PACKAGING] li v0.0.1 ([CWD]/li)
+[UPLOADING] li v0.0.1 ([CWD]/li)
+",
+        )
+        .run();
+}
+
 #[cargo_test]
 fn in_package_workspace_not_found() {
     registry::init();