1 files changed, 32 insertions, 0 deletions
diff --git a/src/js/run_node.py b/src/js/run_node.py
new file mode 100755
index 000000000..1a69dc502
--- /dev/null
+++ b/src/js/run_node.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+"""
+gn can only run python scripts. This launches a subprocess Node process.
+The working dir of this program is out/Debug/ (AKA root_build_dir)
+Before running node, we symlink js/node_modules to out/Debug/node_modules.
+"""
+import subprocess
+import sys
+import os
+
+def symlink(target, name, target_is_dir=False):
+  if os.name == "nt":
+    from ctypes import windll, WinError
+    CreateSymbolicLinkW = windll.kernel32.CreateSymbolicLinkW
+    flags = 0x02  # SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE
+    if (target_is_dir):
+      flags |= 0x01  # SYMBOLIC_LINK_FLAG_DIRECTORY
+    if not CreateSymbolicLinkW(name.encode('utf-16le'),
+                               target.encode('utf-16le'),
+                               flags):
+      raise WinError()
+  else:
+    os.symlink(target, name)
+
+js_path = os.path.dirname(os.path.realpath(__file__))
+node_modules_path = os.path.join(js_path, "node_modules")
+
+if not os.path.exists("node_modules"):
+  symlink(node_modules_path, "node_modules", True)
+
+args = ["node"] + sys.argv[1:]
+sys.exit(subprocess.call(args))