Move emscripten SCons tools into emscripten/scons-tools/

1 files changed, 28 insertions, 0 deletions

diff --git a/scons-tools/closure.py b/scons-tools/closure.py
new file mode 100644
index 00000000..8f53e507
--- /dev/null
+++ b/scons-tools/closure.py
@@ -0,0 +1,28 @@
+import os.path
+from SCons.Builder import Builder
+
+def generate(env):
+    def depend_on_closure_compiler(target, source, env):
+        env.Depends(target, env['CLOSURE_COMPILER'])
+        return target, source
+
+    ClosureCompiler = Builder(
+        action='$JAVA $JAVAFLAGS -jar $CLOSURE_COMPILER $CLOSURE_FLAGS --js_output_file $TARGET $SOURCES',
+        emitter=depend_on_closure_compiler
+    )
+
+    closure = os.path.join(
+        os.path.dirname(__file__),
+        '..',
+        'third_party',
+        'closure-compiler',
+        'compiler.jar')
+    closure = env.File(closure)
+
+    env['JAVA'] = 'java'
+    env['CLOSURE_COMPILER'] = closure
+    env.Append(
+        BUILDERS={'ClosureCompiler':ClosureCompiler})
+
+def exists(_env):
+    return True