# This file contains macros that are shared across Eden.


def is_facebook_internal():
    return read_config('codebase', 'mode') != 'public'


def get_fb_suffix():
    '''Build rule suffix to use for Facebook-specific build targets.'''
    # Internally at Facebook, it is convenient for the canonical version of an
    # Eden build target to have no special suffix so that it can match the
    # directory in which it is defined.
    return '' if is_facebook_internal() else '-fb'


def get_oss_suffix():
    '''Build rule suffix to use for open-source-specific build targets.'''
    # Outside of Facebook, it is convenient for the canonical version of an
    # Eden build target to have no special suffix so that it can match the
    # directory in which it is defined.
    return '-oss' if is_facebook_internal() else ''


def get_daemon_versions():
    '''List of configurations to aid in creating dual build rules.

    Returns:
        An array of tuples where the first member is a build target for the
        daemon and the second member is the suffix to use for other templated
        build target names.
    '''
    return [
        ('//eden/fs/service:edenfs%s' % suffix, suffix)
        for suffix in [get_fb_suffix(), get_oss_suffix()]
    ]

def get_test_env_and_deps(suffix=''):
    '''Returns env vars and a dep list that is useful for locating various
    build products from inside our tests'''

    daemon_target = '//eden/fs/service:edenfs%s' % suffix
    env_to_target = {
        'EDENFS_CLI_PATH': '//eden/cli:cli',
        'EDENFS_SERVER_PATH': daemon_target,
        'EDENFS_POST_CLONE_PATH': '//eden/hooks/hg:post-clone',
        'EDENFS_LAME_THRIFT_PAR': '//eden/fs/service:thrift-EdenService-pyremote',
    }

    envs = {
      'EDENFS_SUFFIX': suffix,
    }
    deps = []

    for name, dep in sorted(env_to_target.items()):
        envs[name] = '$(location %s)' % dep
        deps.append(dep)

    return {
        'env': envs,
        'deps': deps
    }