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mongodb/site_scons/site_tools/jstoh.py

57 lines
1.3 KiB
Python

import os
import sys
def jsToHeader(target, source):
outFile = target
h = [
'#include "mongo/base/string_data.h"',
'#include "mongo/scripting/engine.h"',
"namespace mongo {",
"namespace JSFiles{",
]
def lineToChars(s):
return ",".join(str(ord(c)) for c in (s.rstrip() + "\n")) + ","
for s in source:
filename = str(s)
objname = os.path.split(filename)[1].split(".")[0]
stringname = "_jscode_raw_" + objname
h.append("constexpr char " + stringname + "[] = {")
with open(filename, "r") as f:
for line in f:
h.append(lineToChars(line))
h.append("0};")
# symbols aren't exported w/o this
h.append("extern const JSFile %s;" % objname)
h.append(
'const JSFile %s = { "%s", StringData(%s, sizeof(%s) - 1) };'
% (objname, filename.replace("\\", "/"), stringname, stringname)
)
h.append("} // namespace JSFiles")
h.append("} // namespace mongo")
h.append("")
text = "\n".join(h)
with open(outFile, "w") as out:
try:
out.write(text)
finally:
out.close()
if __name__ == "__main__":
if len(sys.argv) < 3:
print("Must specify [target] [source] ")
sys.exit(1)
jsToHeader(sys.argv[1], sys.argv[2:])