Add single role on setup query blocks

Author: ggrossetie

lib/graphgists/asciidoc-preprocessing.js

@@ -36,7 +36,7 @@ function preprocessing(asciidoc) {
   let currentSourceBlockDefinition = {}
   let currentRoles = []
   const updateMap = {}
-  lines = lines
+  lines
     .map((line, index) => {
       if (line.startsWith('[source,cypher') && line.trim().endsWith(']')) {
         const blockDefintionWithRoles = addRolesInBlockDefinition(line, ['runnable', 'backend:graphgist', ...currentRoles])
@@ -54,6 +54,7 @@ function preprocessing(asciidoc) {
         } else if (line.includes('setup')) {
           // next source block should have instant role
           currentRoles.push('instant')
+          currentRoles.push('single')
         } else if (line.includes('graph_result') && currentSourceBlockDefinition && currentSourceBlockDefinition.index) {
           // *previous* source block should have graph role
           updateMap[currentSourceBlockDefinition.index] = addRolesInBlockDefinition(currentSourceBlockDefinition.line, ['graph'])
@@ -67,7 +68,7 @@ function preprocessing(asciidoc) {
         return updateMap[index]
       }
       return line
-    })
+    }) = lines
   return lines.join('\n')
 }