internal/modules/modproxy.go

@@ -145,7 +145,7 @@ func Query(modpath string, cached bool) (*Module, bool, error) {
 		if msg == "" {
 			msg = res.Status
 		}
-		return nil, false, fmt.Error("proxy: %s", msg)
+		return nil, false, fmt.Errorf("proxy: %s", msg)
 	}
 	var mod Module
 	mod.Path = modpath
@@ -167,7 +167,7 @@ func Latest(modpath string, cached bool) (*Module, error) {
 		return nil, err
 	}
 	if !ok {
-		return nil, fmt.Error("module not found: %s", modpath)
+		return nil, fmt.Errorf("module not found: %s", modpath)
 	}
 	for i := 0; i < 100; i++ {
 		nextpath, ok := latest.NextMajorPath()
@@ -197,7 +197,7 @@ func Latest(modpath string, cached bool) (*Module, error) {
 		}
 		latest = next
 	}
-	return nil, fmt.Error("request limit exceeded")
+	return nil, fmt.Errorf("request limit exceeded")
 }
 
 // QueryPackage tries to find the module path for the provided package path
@@ -217,9 +217,9 @@ func QueryPackage(pkgpath string, cached bool) (*Module, error) {
 					if major, ok := ModMajor(modpath); ok {
 						if v := mod.MaxVersion(major, false); v != "" {
 							spec := JoinPath(modprefix, "", pkgdir) + "@" + v
-							return nil, fmt.Error("%s doesn't support import versioning; use %s", major, spec)
+							return nil, fmt.Errorf("%s doesn't support import versioning; use %s", major, spec)
 						}
-						return nil, fmt.Error("failed to find module for package: %s", pkgpath)
+						return nil, fmt.Errorf("failed to find module for package: %s", pkgpath)
 					}
 				}
 				return mod, nil
@@ -231,7 +231,7 @@ func QueryPackage(pkgpath string, cached bool) (*Module, error) {
 		}
 		prefix = strings.TrimSuffix(remaining, "/")
 	}
-	return nil, fmt.Error("failed to find module for package: %s", pkgpath)
+	return nil, fmt.Errorf("failed to find module for package: %s", pkgpath)
 }
 
 // Update reports a newer version of a module.

internal/modules/packages.go

@@ -108,7 +108,7 @@ func FindModFile(dir string) (string, error) {
 		}
 		parent := filepath.Dir(dir)
 		if parent == dir {
-			return "", fmt.Error("cannot find go.mod")
+			return "", fmt.Errorf("cannot find go.mod")
 		}
 		dir = parent
 	}