Unify "script" and "project" under "util".

util/wren_to_c_string.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+import argparse
+import glob
+import os.path
+import re
+
+# The source for the Wren modules that are built into the VM or CLI are turned
+# include C string literals. This way they can be compiled directly into the
+# code so that file IO is not needed to find and read them.
+#
+# These string literals are stored in files with a ".wren.inc" extension and
+# #included directly by other source files. This generates a ".wren.inc" file
+# given a ".wren" module.
+
+PREAMBLE = """// Generated automatically from {0}. Do not edit.
+static const char* {1}ModuleSource =
+{2};
+"""
+
+def wren_to_c_string(input_path, wren_source_lines, module):
+  wren_source = ""
+  for line in wren_source_lines:
+    line = line.replace('"', "\\\"")
+    line = line.replace("\n", "\\n\"")
+    if wren_source: wren_source += "\n"
+    wren_source += '"' + line
+
+  return PREAMBLE.format(input_path, module, wren_source)
+
+
+def main():
+  parser = argparse.ArgumentParser(
+      description="Convert a Wren library to a C string literal.")
+  parser.add_argument("output", help="The output file to write")
+  parser.add_argument("input", help="The source .wren file")
+
+  args = parser.parse_args()
+
+  with open(args.input, "r") as f:
+    wren_source_lines = f.readlines()
+
+  module = os.path.splitext(os.path.basename(args.input))[0]
+  c_source = wren_to_c_string(args.input, wren_source_lines, module)
+
+  with open(args.output, "w") as f:
+    f.write(c_source)
+
+  print("        str " + args.input)
+
+
+main()