fix: better error message for using the script as a dep

Signed-off-by: Rustin170506 <techregister@pm.me>
rust-lang · Feb 4, 2025 · 91da8db · 91da8db
1 parent 1514c7e
commit 91da8db
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/src/cargo/core/source_id.rs b/src/cargo/core/source_id.rs
@@ -393,6 +393,9 @@ impl SourceId {
                     .url
                     .to_file_path()
                     .expect("path sources cannot be remote");
+                if crate::util::toml::is_embedded(&path) {
+                    anyhow::bail!("Single file packages cannot be used as dependencies")
+                }
                 Ok(Box::new(PathSource::new(&path, self, gctx)))
             }
             SourceKind::Registry | SourceKind::SparseRegistry => Ok(Box::new(

diff --git a/tests/testsuite/script.rs b/tests/testsuite/script.rs
@@ -1402,10 +1402,7 @@ Caused by:
   Unable to update [ROOT]/foo/script.rs
 
 Caused by:
-  failed to read `[ROOT]/foo/script.rs/Cargo.toml`
-
-Caused by:
-  Not a directory (os error 20)
+  Single file packages cannot be used as dependencies
 
 "#]])
         .run();