fix(sonarqube): tolerate missing migration indexes (apache#9012)

Co-authored-by: Frederic Hübner <frederichuebner@ip-192-168-1-223.eu-central-1.compute.internal>

Author: frederic-huebner

backend/impls/dalgorm/dalgorm.go

@@ -453,6 +453,9 @@ func (d *Dalgorm) RenameTable(oldName, newName string) errors.Error {
 // DropIndexes drops indexes for specified table
 func (d *Dalgorm) DropIndexes(table string, indexNames ...string) errors.Error {
 	for _, indexName := range indexNames {
+		if !d.db.Migrator().HasIndex(table, indexName) {
+			continue
+		}
 		err := d.db.Migrator().DropIndex(table, indexName)
 		if err != nil {
 			return d.convertGormError(err)

backend/plugins/sonarqube/e2e/issue_code_block_long_component_test.go

@@ -80,6 +80,12 @@ func TestSonarqubeIssueCodeBlockLongComponent(t *testing.T) {
 		&sonarqubeIssueCodeBlockBeforeText{},
 		&cqIssueCodeBlockBeforeText{},
 	))
+	require.NoError(t, dataflowTester.Db.Migrator().DropIndex(
+		"cq_issue_code_blocks", "idx_cq_issue_code_blocks_component",
+	))
+	require.NoError(t, dataflowTester.Db.Migrator().DropIndex(
+		"_tool_sonarqube_issue_code_blocks", "idx__tool_sonarqube_issue_code_blocks_component",
+	))
 
 	existingComponent := "existing:component"
 	require.NoError(t, dataflowTester.Db.Create(&sonarqubeIssueCodeBlockBeforeText{