circuitpython/tools/make-frozen.py

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#!/usr/bin/env python
#
# Create frozen modules structure for MicroPython.
#
# Usage:
#
# Have a directory with modules to be frozen (only modules, not packages
# supported so far):
#
# frozen/foo.py
# frozen/bar.py
#
# Run script, passing path to the directory above:
#
# ./make-frozen.py frozen > frozen.c
#
# Include frozen.c in your build, having defined MICROPY_MODULE_FROZEN in
# config.
#
from __future__ import print_function
import sys
import os
def module_name(f):
return f[:-len(".py")]
modules = []
root = sys.argv[1].rstrip("/")
root_len = len(root)
for dirpath, dirnames, filenames in os.walk(root):
for f in filenames:
fullpath = dirpath + "/" + f
st = os.stat(fullpath)
modules.append((fullpath[root_len + 1:], st))
print("#include <stdint.h>")
print("const uint16_t mp_frozen_sizes[] = {")
for f, st in modules:
print("%d," % st.st_size)
print("0};")
print("const char mp_frozen_content[] = {")
for f, st in modules:
m = module_name(f)
print('"%s\\0"' % m)
data = open(sys.argv[1] + "/" + f, "rb").read()
# Python2 vs Python3 tricks
data = repr(data)
if data[0] == "b":
data = data[1:]
data = data[1:-1]
data = data.replace('"', '\\"')
print('"%s"' % data)
print("};")