chore(internal): fix deno build (#98)

scripts/denoify.ts

@@ -23,6 +23,9 @@ function denoify() {
       } else if (specifier.startsWith(pkgName + '/')) {
         // convert self-referencing module specifiers to relative paths
         specifier = file.getRelativePathAsModuleSpecifierTo(denoDir + specifier.substring(pkgName.length));
+      } else if (specifier === 'qs') {
+        decl.replaceWithText(`import { qs } from "https://deno.land/x/deno_qs@0.0.1/mod.ts"`);
+        continue;
       } else if (!decl.isModuleSpecifierRelative()) {
         specifier = `npm:${specifier}`;
       }

src/core.ts

@@ -767,14 +767,16 @@ export const ensurePresent = <T>(value: T | null | undefined): T => {
 /**
  * Read an environment variable.
  *
- * Will return an empty string if the environment variable doesn't exist or cannot be accessed.
+ * Will return undefined if the environment variable doesn't exist or cannot be accessed.
  */
 export const readEnv = (env: string): string | undefined => {
-  if (typeof process === 'undefined') {
-    return undefined;
+  if (typeof process !== 'undefined') {
+    return process.env[env] ?? undefined;
   }
-
-  return process.env[env] ?? undefined;
+  if (typeof Deno !== 'undefined') {
+    return Deno.env.get(env);
+  }
+  return undefined;
 };
 
 export const coerceInteger = (value: unknown): number => {