Tiltfile

load('ext://local_output', 'local_output')

def encode_base64(content):
    base64_cmd = ['base64']
    # the bsd base64 binary has no "-w" cli option. there is an alternative "-b" which has "0" as default, so we pass "-w 0" only if we use a gnu base64 binary
    # see https://stackoverflow.com/a/46464081
    # windows is not affected
    is_windows = True if os.name == 'nt' else False
    is_gnu_base64 = True if not is_windows and 'gnu coreutils' in local_output('base64 --version', quiet=True, echo_off=True).lower() else False
    if is_gnu_base64:
        base64_cmd.extend(['-w', '0'])
    return local_output(
        command=base64_cmd,
        command_bat=['powershell', '[convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($input))'],
        quiet=True,
        echo_off=True,
        stdin=content,
    )

def decode_base64(content):
    return local_output(
        command=['base64', '-d'],
        command_bat=['powershell', '[Text.Encoding]::UTF8.GetString([convert]::FromBase64String($input))'],
        quiet=True,
        echo_off=True,
        stdin=content,
    )