MB-27666, MB-69881: Backport necessary commits into morpheus (#2273)

- Backport the following commits into `v8.0.x-couchbase` via cherry-pick
    - #2270
    - #2224
    - #2272

---------

Co-authored-by: Abhinav Dangeti <abhinav@couchbase.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 3 people

README.md

@@ -25,6 +25,7 @@ A modern indexing + search library in GO
   * [geo spatial search](https://github.com/blevesearch/bleve/blob/master/geo/README.md)
   * approximate k-nearest neighbors via [vector search](https://github.com/blevesearch/bleve/blob/master/docs/vectors.md)
   * [synonym search](https://github.com/blevesearch/bleve/blob/master/docs/synonyms.md)
+  * [hierarchical nested search](https://github.com/blevesearch/bleve/blob/master/docs/hierarchy.md)
 * [tf-idf](https://github.com/blevesearch/bleve/blob/master/docs/scoring.md#tf-idf) / [bm25](https://github.com/blevesearch/bleve/blob/master/docs/scoring.md#bm25) scoring models
 * Hybrid search: exact + semantic
 * Query time boosting

analysis/analyzer/custom/custom.go

@@ -140,7 +140,7 @@ func convertInterfaceSliceToStringSlice(interfaceSlice []interface{}, objType st
 		if ok {
 			stringSlice[i] = stringObj
 		} else {
-			return nil, fmt.Errorf(objType + " name must be a string")
+			return nil, fmt.Errorf("%s name must be a string", objType)
 		}
 	}
 

analysis/datetime/iso/iso.go

@@ -118,7 +118,7 @@ func letterCounter(layout string, idx int) int {
 }
 
 func invalidFormatError(character byte, count int) error {
-	return fmt.Errorf("invalid format string, unknown format specifier: " + strings.Repeat(string(character), count))
+	return fmt.Errorf("invalid format string, unknown format specifier: %s", strings.Repeat(string(character), count))
 }
 
 func parseISOString(layout string) (string, error) {
@@ -146,7 +146,7 @@ func parseISOString(layout string) (string, error) {
 			// second text literal delimiter
 			if idx == len(layout) {
 				// text literal delimiter not found error
-				return "", fmt.Errorf("invalid format string, expected text literal delimiter: " + string(textLiteralDelimiter))
+				return "", fmt.Errorf("invalid format string, expected text literal delimiter: %s", string(textLiteralDelimiter))
 			}
 			// increment idx to skip the second text literal delimiter
 			idx++

cmd/bleve/cmd/registry.go

@@ -71,12 +71,12 @@ var registryCmd = &cobra.Command{
 func printType(label string, types, instances []string) {
 	sort.Strings(types)
 	sort.Strings(instances)
-	fmt.Printf(label + " Types:\n")
+	fmt.Printf("%s Types:\n", label)
 	for _, name := range types {
 		fmt.Printf("\t%s\n", name)
 	}
 	fmt.Println()
-	fmt.Printf(label + " Instances:\n")
+	fmt.Printf("%s Instances:\n", label)
 	for _, name := range instances {
 		fmt.Printf("\t%s\n", name)
 	}