diff --git a/bin/pyglslunit.py b/bin/pyglslunit.py
new file mode 100644
index 0000000000..47be9c7fdc
--- /dev/null
+++ b/bin/pyglslunit.py
@@ -0,0 +1,121 @@
+#!/usr/bin/python
+
+from optparse import OptionParser
+import re
+import sys
+
+import pystache
+
+
+ESCAPE_SEQUENCE = {
+        '\\': '\\\\',
+        '\n': '\\n',
+        '\t': '\\t'
+        }
+
+
+def js_escape(s):
+    return ''.join(ESCAPE_SEQUENCE.get(c, c) for c in s)
+
+
+def glsl_compress(s, shortNames):
+    # strip leading whitespace
+    s = re.sub(r'\A\s+', '', s)
+    # strip trailing whitespace
+    s = re.sub(r'\s+\Z', '', s)
+    # strip multi-line comments
+    s = re.sub(r'/\*.*?\*/', '', s)
+    # strip single line comments
+    s = re.sub(r'//.*?\n', '', s)
+    # replace multiple whitespace with a single space
+    s = re.sub(r'\s+', ' ', s)
+    # remove whitespace between non-word tokens
+    s = re.sub(r'(\S)\s+([^\w])', r'\1\2', s)
+    s = re.sub(r'([^\w])\s+(\S)', r'\1\2', s)
+    # replace original names with short names
+    for originalName, shortName in shortNames.items():
+        s = s.replace(originalName, shortName)
+    return s
+
+
+def main(argv):
+    option_parser = OptionParser()
+    option_parser.add_option('--input')
+    option_parser.add_option('--output')
+    option_parser.add_option('--template')
+    options, args = option_parser.parse_args(argv[1:])
+
+    context = {}
+    nextShortName = ord('a')
+    shortNames = {}
+
+    common, vertex, fragment = [], [], []
+    attributes, uniforms, varyings = {}, {}, {}
+    block = None
+    for line in open(options.input):
+        if line.startswith('//!'):
+            m = re.match(r'//!\s+NAMESPACE=(\S+)\s*\Z', line)
+            if m:
+                context['namespace'] = m.group(1)
+                continue
+            m = re.match(r'//!\s+CLASS=(\S+)\s*\Z', line)
+            if m:
+                context['className'] = m.group(1)
+                continue
+            m = re.match(r'//!\s+COMMON\s*\Z', line)
+            if m:
+                block = common
+                continue
+            m = re.match(r'//!\s+VERTEX\s*\Z', line)
+            if m:
+                block = vertex
+                continue
+            m = re.match(r'//!\s+FRAGMENT\s*\Z', line)
+            if m:
+                block = fragment
+                continue
+        else:
+            if block is None:
+                assert line.rstrip() == ''
+            else:
+                block.append(line)
+            m = re.match(r'attribute\s+\S+\s+(\S+);\s*\Z', line)
+            if m:
+                attribute = m.group(1)
+                if attribute not in attributes:
+                    shortName = chr(nextShortName)
+                    nextShortName += 1
+                    attributes[attribute] = {'originalName': attribute, 'shortName': shortName}
+                    shortNames[attribute] = shortName
+            m = re.match(r'uniform\s+\S+\s+(\S+);\s*\Z', line)
+            if m:
+                uniform = m.group(1)
+                if uniform not in uniforms:
+                    shortName = chr(nextShortName)
+                    nextShortName += 1
+                    uniforms[uniform] = {'originalName': uniform, 'shortName': shortName}
+                    shortNames[uniform] = shortName
+            m = re.match(r'varying\s+\S+\s+(\S+);\s*\Z', line)
+            if m:
+                varying = m.group(1)
+                if varying not in varyings:
+                    shortName = chr(nextShortName)
+                    nextShortName += 1
+                    shortNames[varying] = shortName
+
+    context['getOriginalFragmentSource'] = js_escape(''.join(common + fragment))
+    context['getOriginalVertexSource'] = js_escape(''.join(common + vertex))
+    context['getFragmentSource'] = glsl_compress(''.join(common + fragment), shortNames)
+    context['getVertexSource'] = glsl_compress(''.join(common + vertex), shortNames)
+    context['getAttributes'] = [attributes[a] for a in sorted(attributes.keys())]
+    context['getUniforms'] = [uniforms[u] for u in sorted(uniforms.keys())]
+
+    if options.output and options.output != '-':
+        output = open(options.output, 'w')
+    else:
+        output = sys.stdout
+    output.write(pystache.render(open(options.template).read(), context))
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))