Show 'depends on itself' for proxy packages (#9717)

Author: charliermarsh

crates/uv-resolver/src/pubgrub/report.rs

@@ -134,11 +134,11 @@ impl ReportFormatter<PubGrubPackage, Range<Version>, UnavailableReason>
                 let package_set = self.simplify_set(package_set, package);
                 let dependency_set = self.simplify_set(dependency_set, dependency);
 
-                if package == dependency {
+                if package.name_no_root() == dependency.name_no_root() {
                     if let Some(member) = self.format_workspace_member(package) {
                         return format!(
                             "{member} depends on itself at an incompatible version ({})",
-                            PackageRange::dependency(package, &dependency_set, None)
+                            PackageRange::dependency(dependency, &dependency_set, None)
                         );
                     }
                 }

crates/uv/tests/it/lock.rs

@@ -19660,7 +19660,7 @@ fn lock_self_extra_to_same_extra_incompatible() -> Result<()> {
 
     ----- stderr -----
       × No solution found when resolving dependencies:
-      ╰─▶ Because project[foo] depends on your project and your project requires project[foo], we can conclude that your project's requirements are unsatisfiable.
+      ╰─▶ Because project[foo] depends on itself at an incompatible version (project==0.2.0) and your project requires project[foo], we can conclude that your project's requirements are unsatisfiable.
 
           hint: The package `project[foo]` depends on itself at an incompatible version. This is likely a mistake. Consider removing the dependency.
     "###);
@@ -19694,7 +19694,7 @@ fn lock_self_extra_to_other_extra_incompatible() -> Result<()> {
 
     ----- stderr -----
       × No solution found when resolving dependencies:
-      ╰─▶ Because project[foo] depends on your project and your project requires project[foo], we can conclude that your project's requirements are unsatisfiable.
+      ╰─▶ Because project[foo] depends on itself at an incompatible version (project==0.2.0) and your project requires project[foo], we can conclude that your project's requirements are unsatisfiable.
 
           hint: The package `project[foo]` depends on itself at an incompatible version. This is likely a mistake. Consider removing the dependency.
     "###);
@@ -19829,7 +19829,7 @@ fn lock_self_extra_incompatible() -> Result<()> {
 
     ----- stderr -----
       × No solution found when resolving dependencies:
-      ╰─▶ Because project[foo] depends on your project and your project requires project[foo], we can conclude that your project's requirements are unsatisfiable.
+      ╰─▶ Because project[foo] depends on itself at an incompatible version (project==0.2.0) and your project requires project[foo], we can conclude that your project's requirements are unsatisfiable.
 
           hint: The package `project[foo]` depends on itself at an incompatible version. This is likely a mistake. Consider removing the dependency.
     "###);
@@ -19958,7 +19958,7 @@ fn lock_self_marker_incompatible() -> Result<()> {
 
     ----- stderr -----
       × No solution found when resolving dependencies:
-      ╰─▶ Because only project{sys_platform == 'win32'}<=0.1 is available and your project depends on project{sys_platform == 'win32'}>0.1, we can conclude that your project's requirements are unsatisfiable.
+      ╰─▶ Because only project{sys_platform == 'win32'}<=0.1 is available and your project depends on itself at an incompatible version (project{sys_platform == 'win32'}>0.1), we can conclude that your project's requirements are unsatisfiable.
 
           hint: The package `project` depends on itself at an incompatible version. This is likely a mistake. Consider removing the dependency.
     "###);