Import SCons-1.2.0 into repository and magically use own scons

[senf.git] / site_scons / site_init.py

diff --git a/site_scons/site_init.py b/site_scons/site_init.py
new file mode 100644 (file)
index 0000000..748d871
--- /dev/null
+++ b/site_scons/site_init.py
@@ -0,0 +1,16 @@
+import os.path, SCons
+
+# SCons is at     #/scons/scons-<v>/engine/SCons/__init__.py
+# site_init is at #/site_scons/site_init.py
+
+sconsbase = os.path.join(os.path.dirname(os.path.dirname(__file__)),"scons")
+sconsbase = os.path.abspath(os.path.join(sconsbase, sorted(os.listdir(sconsbase))[-1]))
+sconsengine = os.path.join(sconsbase, 'engine')
+sconsscript = os.path.join(os.path.join(sconsbase, 'script'),'scons')
+
+if os.path.abspath(os.path.dirname(os.path.dirname(os.path.dirname(SCons.__file__)))) != sconsbase:
+    import os, sys, SCons.Util
+    SCons.Util.display("scons: Switching version")
+    os.chdir(sys._getframe(2).f_locals['target_top'] or '.')
+    os.environ['SCONS_LIB_DIR'] = sconsengine
+    os.execv(sconsscript, sys.argv)