Build: disable -g and enable -Ob while GITHUB_CI env is set

Author: Ariouz

.github/scripts/extract_matrix.py

@@ -14,7 +14,8 @@
 
 DEFAULT_ENV = {
     "CI": "true",
-    "PYTHONIOENCODING": "utf-8"
+    "GITHUB_CI": "true",
+    "PYTHONIOENCODING": "utf-8",
 }
 
 

graalpython/com.oracle.graal.python/src/META-INF/native-image/org.graalvm.python/python-language/native-image.properties

@@ -4,6 +4,3 @@ Args = -H:MaxRuntimeCompileMethods=20000 \
        --features=com.oracle.graal.python.BouncyCastleFeature \
        --add-exports=org.graalvm.nativeimage/org.graalvm.nativeimage.impl=org.graalvm.py \
        --add-exports=org.graalvm.nativeimage/org.graalvm.nativeimage.impl=ALL-UNNAMED
-
-# GR-46399: libpythonvm needs more than the default minimum of 8 GB to be built
-JavaArgs = -Xms14g

mx.graalpython/mx_graalpython.py

@@ -825,7 +825,12 @@ def graalpy_standalone_home(standalone_type, enterprise=False, dev=False, build=
         standalone_dist = 'GRAALPY_NATIVE_STANDALONE'
 
     mx_args = ['-p', SUITE.dir, *(['--env', env_file] if env_file else [])]
-    mx_args.append("--extra-image-builder-argument=-g")
+    
+    if os.environ.get("GITHUB_CI"):
+        print("[DEBUG] Running in GitHub Ci")
+        mx_args.append("--extra-image-builder-argument=-Ob")
+    else:
+        mx_args.append("--extra-image-builder-argument=-g")
 
     pgo_profile = os.environ.get("GRAALPY_PGO_PROFILE")
     if pgo_profile is not None: