#!/bin/sh

configs=$(dirname -- "$0")/../configs

# replace each FOO=bar argument with -e 's/.*FOO.*/FOO=bar/', then sed "$@"
set_build_opts() {
    for v; do
        set -- "$@" -e "s/.*${v%%=*}.*/$v/"
        shift
    done
    sed "$@"
}


# Create unicode configs/mingw64u_defconfig from configs/mingw64_defconfig
# by flipping some build options to enable:
# - UTF8 manifest to support unicode on win 10 (filenames, etc).
# - UTF8 terminal input (shell prompt, read).
# - UTF8 editing - codepoint awareness (prompt, read):
#   - Builtin libc unicode functions (mbstowcs etc - no UNICODE_USING_LOCALE).
#   - Dynamic unicode based on ANSI codepage and ENV (CHECK_UNICODE_IN_ENV).
#   - Screen-width awareness (COMBINING_WCHARS, WIDE_WCHARS)
#   - Full unicode range (U+10FFFF - LAST_SUPPORTED_WCHAR=1114111)

set_build_opts \
    CONFIG_FEATURE_UTF8_MANIFEST=y \
    CONFIG_FEATURE_UTF8_INPUT=y \
    CONFIG_FEATURE_UTF8_OUTPUT=y \
    CONFIG_UNICODE_SUPPORT=y \
    CONFIG_FEATURE_CHECK_UNICODE_IN_ENV=y \
    CONFIG_SUBST_WCHAR=63 \
    CONFIG_LAST_SUPPORTED_WCHAR=1114111 \
    CONFIG_UNICODE_COMBINING_WCHARS=y \
    CONFIG_UNICODE_WIDE_WCHARS=y \
    < "$configs"/mingw64_defconfig \
    > "$configs"/mingw64u_defconfig

sed -i 's/CONFIG_FEATURE_APP_MANIFEST=y/# CONFIG_FEATURE_APP_MANIFEST is not set/' "$configs"/mingw64u_defconfig