From 99f330284f03f4f0db384141f2931a277afcbb96 Mon Sep 17 00:00:00 2001
From: Daniel Schmidt <danielmschmidt92@gmail.com>
Date: Mon, 26 Jul 2021 09:47:24 +0200
Subject: [PATCH] fix(hcl2cdk): handle all global variables

---
 packages/@cdktf/hcl2cdk/lib/expressions.ts               | 6 +++++-
 .../hcl2cdk/test/__snapshots__/hcl2cdk.test.ts.snap      | 8 ++++++++
 packages/@cdktf/hcl2cdk/test/hcl2cdk.test.ts             | 9 +++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/packages/@cdktf/hcl2cdk/lib/expressions.ts b/packages/@cdktf/hcl2cdk/lib/expressions.ts
index d4adea9a4c..8f62387150 100644
--- a/packages/@cdktf/hcl2cdk/lib/expressions.ts
+++ b/packages/@cdktf/hcl2cdk/lib/expressions.ts
@@ -89,7 +89,11 @@ export function extractReferencesFromExpression(
       spot.endsWith("...") || // spread (likely in for loop)
       spot.startsWith("count.") || // count variable
       spot.startsWith("each.") || // each variable
-      spot.startsWith("path.module") // path variable
+      // https://www.terraform.io/docs/language/expressions/references.html#filesystem-and-workspace-info
+      spot.startsWith("path.module") ||
+      spot.startsWith("path.root") ||
+      spot.startsWith("path.cwd") ||
+      spot.startsWith("terraform.workspace")
     ) {
       return carry;
     }
diff --git a/packages/@cdktf/hcl2cdk/test/__snapshots__/hcl2cdk.test.ts.snap b/packages/@cdktf/hcl2cdk/test/__snapshots__/hcl2cdk.test.ts.snap
index 05e2aa9458..be833650c5 100644
--- a/packages/@cdktf/hcl2cdk/test/__snapshots__/hcl2cdk.test.ts.snap
+++ b/packages/@cdktf/hcl2cdk/test/__snapshots__/hcl2cdk.test.ts.snap
@@ -759,6 +759,14 @@ new auth0.Auth0Provider(this, \\"auth0\\", {
 "
 `;
 
+exports[`convert required namespaced provider configuration 2`] = `
+"new TerraformHclModule.TerraformHclModule(this, \\"example\\", {
+  namePrefix: \\"app-\${terraform.workspace}\\",
+  source: \\"./my-module\\",
+});
+"
+`;
+
 exports[`convert resource references configuration 1`] = `
 "import * as aws from \\"./.gen/providers/aws\\";
 const awsKmsKeyExamplekms = new aws.KmsKey(this, \\"examplekms\\", {
diff --git a/packages/@cdktf/hcl2cdk/test/hcl2cdk.test.ts b/packages/@cdktf/hcl2cdk/test/hcl2cdk.test.ts
index ef0ace820e..f03938030f 100644
--- a/packages/@cdktf/hcl2cdk/test/hcl2cdk.test.ts
+++ b/packages/@cdktf/hcl2cdk/test/hcl2cdk.test.ts
@@ -808,6 +808,15 @@ describe("convert", () => {
       }
       `,
     ],
+    [
+      "required namespaced provider",
+      `
+      module "example" {
+        source = "./my-module"
+        name_prefix = "app-\${terraform.workspace}"
+      }
+      `,
+    ],
   ])("%s configuration", async (_name, hcl) => {
     const { all } = await convert(hcl, {
       language: "typescript",