Add Deno.version.gnArgs (#1845)

To display specific build args passed to GN.

2 files changed, 7 insertions, 1 deletions

diff --git a/js/version.ts b/js/version.ts
index 805e565a0..984550a74 100644
--- a/js/version.ts
+++ b/js/version.ts
@@ -3,12 +3,14 @@ interface Version {
   deno: string;
   v8: string;
   typescript: string;
+  gnArgs: string;
 }
 
 export const version: Version = {
   deno: "",
   v8: "",
-  typescript: "TS_VERSION" // This string will be replaced by rollup
+  typescript: "TS_VERSION", // This string will be replaced by rollup
+  gnArgs: `GN_ARGS` // This string will be replaced by rollup
 };
 
 /**
diff --git a/js/version_test.ts b/js/version_test.ts
index d3d1bc3df..bef00dbc3 100644
--- a/js/version_test.ts
+++ b/js/version_test.ts
@@ -6,3 +6,7 @@ test(function version() {
   assert(pattern.test(Deno.version.v8));
   assert(pattern.test(Deno.version.typescript));
 });
+
+test(function versionGnArgs() {
+  assert(Deno.version.gnArgs.length > 100);
+});