[incubator-baremaps] branch main updated: Expose environment variables to javascript (#776)

[bchapuis]

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bchapuis pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/incubator-baremaps.git


The following commit(s) were added to refs/heads/main by this push:
     new 49a84c96 Expose environment variables to javascript (#776)
49a84c96 is described below

commit 49a84c96c6efd888602964c24af32a59c7a2b595
Author: Bertil Chapuis <bchap...@gmail.com>
AuthorDate: Fri Sep 8 10:56:04 2023 +0200

    Expose environment variables to javascript (#776)
---
 .../src/main/java/org/apache/baremaps/config/ConfigReader.java     | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git 
a/baremaps-core/src/main/java/org/apache/baremaps/config/ConfigReader.java 
b/baremaps-core/src/main/java/org/apache/baremaps/config/ConfigReader.java
index d19e4316..a4bead3c 100644
--- a/baremaps-core/src/main/java/org/apache/baremaps/config/ConfigReader.java
+++ b/baremaps-core/src/main/java/org/apache/baremaps/config/ConfigReader.java
@@ -18,8 +18,10 @@ import java.io.IOException;
 import java.io.StringReader;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.HashMap;
 import org.graalvm.polyglot.Context;
 import org.graalvm.polyglot.Source;
+import org.graalvm.polyglot.proxy.ProxyObject;
 
 public class ConfigReader {
 
@@ -45,6 +47,11 @@ public class ConfigReader {
         .allowExperimentalOptions(true)
         .allowIO(true)
         .build()) {
+
+      // Expose the environment variables to the script
+      var env = new HashMap<String, Object>(System.getenv());
+      context.getBindings("js").putMember("env", ProxyObject.fromMap(env));
+
       var script = String.format("""
           import config from '%s';
           export default JSON.stringify(config);