tgc-revival: add google_logging_metric (#15718)

Author: zli82016

mmv1/products/logging/Metric.yaml

@@ -32,6 +32,8 @@ mutex: 'customMetric/{{project}}'
 import_format:
   - '{{name}}'
   - '{{project}} {{name}}'
+include_in_tgc_next_DO_NOT_USE: true
+tgc_include_handwritten_tests: true
 timeouts:
   insert_minutes: 20
   update_minutes: 20

mmv1/templates/tgc_next/cai2hcl/resource_converter.go.tmpl

@@ -21,6 +21,8 @@ import (
 	"reflect"
 	"regexp"
 	"strings"
+	"crypto/sha256"
+	"encoding/hex"
 
 {{/* We list all the v2 imports here and unstable imports, because we run 'goimports' to guess the correct
      set of imports, which will never guess the major version correctly. */ -}}
@@ -111,8 +113,12 @@ func (c *{{ $.ResourceName -}}Cai2hclConverter) convertResourceData(asset caiass
 
 	hclBlockName := assetNameParts[len(assetNameParts)-1]
 	digitRegex := regexp.MustCompile(`^\d+$`)
-	if digitRegex.MatchString(hclBlockName) {
-		hclBlockName = fmt.Sprintf("resource%s", utils.RandString(8))
+	nameValidator := regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_-]*$")
+	if digitRegex.MatchString(hclBlockName) || !nameValidator.MatchString(hclBlockName) {
+		hasher := sha256.New()
+		hasher.Write([]byte(hclBlockName))
+		fullHash := hex.EncodeToString(hasher.Sum(nil))
+		hclBlockName = fmt.Sprintf("resource%s", fullHash[:8])
 	}
 	hclData := make(map[string]interface{})