CoverPositionsCompile.py

#!/bin/env python3
import glob
import os.path
import sys


def c_string(s):
    return 'R"us5lhvaf({})us5lhvaf"'.format(s)


configs = {}
for fn in glob.glob("_defaultConfigs/*.js"):
    basename = os.path.basename(fn)
    if basename[0] == '_':
        continue
    with open(fn) as f:
        configs[basename[:-3]] = f.read()

if 'Default' not in configs:
    sys.exit("Default config missing")

config_count = len(configs)
configs = "\n\n".join(
    "//{:/^116}//\n{},\n{},".format(
        " {} ".format(k),
        c_string(k + " (build-in)"),
        c_string(v.strip().replace("   ", "\t")))
    for k, v in sorted(configs.items()))

template = """/// This file is auto-generated by {me}

static const char* configs[{array_len}] = {{
{configs}
nullptr }};

const char** builtInCoverConfigArray  = static_cast<const char**>(configs);
"""
new_content = template.format(me=__file__,
                              configs=configs,
                              array_len=config_count * 2 + 1)

made_changes = False
out_file = 'lib/cover_configs.cpp'
with open(out_file, "r+", newline="\n") as f:
    old_content = f.read()
    if old_content != new_content:
        made_changes = True
        f.seek(0)
        f.truncate()
        f.write(new_content)

if made_changes:
    print("cover configs updated")
else:
    print("cover configs unchanged")