From e978eba3371e23b198598e1bc2caa62116330fb9 Mon Sep 17 00:00:00 2001
From: "James M. Greene" <JamesMGreene@github.com>
Date: Mon, 21 Nov 2022 13:12:45 -0600
Subject: [PATCH] Add support for indirect config declarator in chained
 declaration statement

---
 src/config-parser.js | 70 +++++++++++++++++++-------------------------
 1 file changed, 30 insertions(+), 40 deletions(-)

diff --git a/src/config-parser.js b/src/config-parser.js
index 52216f5..87b37bb 100644
--- a/src/config-parser.js
+++ b/src/config-parser.js
@@ -99,6 +99,28 @@ class ConfigParser {
     this.configuration = fs.readFileSync(this.configurationFile, 'utf8')
   }
 
+  findTopLevelVariableDeclarator(ast, identifierName) {
+    let targetDeclarator
+    ast.body.find(
+      node =>
+        node.type === 'VariableDeclaration' &&
+        node.declarations &&
+        node.declarations.length > 0 &&
+        node.declarations.find(declarator => {
+          if (
+            declarator.type === 'VariableDeclarator' &&
+            declarator.id &&
+            declarator.id.type === 'Identifier' &&
+            declarator.id.name === identifierName
+          ) {
+            targetDeclarator = declarator
+            return true
+          }
+        })
+    )
+    return targetDeclarator
+  }
+
   // Find the configuration object in an AST.
   // Look for, in order:
   //  - a direct default export
@@ -139,16 +161,8 @@ class ConfigParser {
     // Indirect default export
     else if (defaultExport && defaultExport.declaration.type === 'Identifier') {
       const identifierName = defaultExport.declaration.name
-      const identifierDefinition = ast.body.find(
-        node =>
-          node.type === 'VariableDeclaration' &&
-          node.declarations.length == 1 &&
-          node.declarations[0].type === 'VariableDeclarator' &&
-          node.declarations[0].id.type === 'Identifier' &&
-          node.declarations[0].id.name === identifierName &&
-          node.declarations[0].init
-      )
-      const identifierInitialization = identifierDefinition && identifierDefinition.declarations[0].init
+      const identifierDeclarator = this.findTopLevelVariableDeclarator(ast, identifierName)
+      const identifierInitialization = identifierDeclarator && identifierDeclarator.init
       if (identifierInitialization && identifierInitialization.type === 'ObjectExpression') {
         core.info('Found configuration object in indirect default export declaration')
         return identifierInitialization
@@ -179,16 +193,8 @@ class ConfigParser {
       defaultExport.declaration.arguments[0].type === 'Identifier'
     ) {
       const identifierName = defaultExport.declaration.arguments[0].name
-      const identifierDefinition = ast.body.find(
-        node =>
-          node.type === 'VariableDeclaration' &&
-          node.declarations.length == 1 &&
-          node.declarations[0].type === 'VariableDeclarator' &&
-          node.declarations[0].id.type === 'Identifier' &&
-          node.declarations[0].id.name === identifierName &&
-          node.declarations[0].init
-      )
-      const identifierInitialization = identifierDefinition && identifierDefinition.declarations[0].init
+      const identifierDeclarator = this.findTopLevelVariableDeclarator(ast, identifierName)
+      const identifierInitialization = identifierDeclarator && identifierDeclarator.init
       if (identifierInitialization && identifierInitialization.type === 'ObjectExpression') {
         core.info(
           'Found configuration object in indirect default export declaration with a wrapping call at the export'
@@ -232,16 +238,8 @@ class ConfigParser {
     // Indirect module export
     else if (moduleExport && moduleExport.expression.right.type === 'Identifier') {
       const identifierName = moduleExport && moduleExport.expression.right.name
-      const identifierDefinition = ast.body.find(
-        node =>
-          node.type === 'VariableDeclaration' &&
-          node.declarations.length == 1 &&
-          node.declarations[0].type === 'VariableDeclarator' &&
-          node.declarations[0].id.type === 'Identifier' &&
-          node.declarations[0].id.name === identifierName &&
-          node.declarations[0].init
-      )
-      const identifierInitialization = identifierDefinition && identifierDefinition.declarations[0].init
+      const identifierDeclarator = this.findTopLevelVariableDeclarator(ast, identifierName)
+      const identifierInitialization = identifierDeclarator && identifierDeclarator.init
       if (identifierInitialization && identifierInitialization.type === 'ObjectExpression') {
         core.info('Found configuration object in indirect module export')
         return identifierInitialization
@@ -270,16 +268,8 @@ class ConfigParser {
       moduleExport.expression.right.arguments[0].type === 'Identifier'
     ) {
       const identifierName = moduleExport.expression.right.arguments[0].name
-      const identifierDefinition = ast.body.find(
-        node =>
-          node.type === 'VariableDeclaration' &&
-          node.declarations.length == 1 &&
-          node.declarations[0].type === 'VariableDeclarator' &&
-          node.declarations[0].id.type === 'Identifier' &&
-          node.declarations[0].id.name === identifierName &&
-          node.declarations[0].init
-      )
-      const identifierInitialization = identifierDefinition && identifierDefinition.declarations[0].init
+      const identifierDeclarator = this.findTopLevelVariableDeclarator(ast, identifierName)
+      const identifierInitialization = identifierDeclarator && identifierDeclarator.init
       if (identifierInitialization && identifierInitialization.type === 'ObjectExpression') {
         core.info('Found configuration object in indirect module export declaration with a wrapping call at the export')
         return identifierInitialization