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#!/usr/bin/env python
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
#
# Copyright (C) 2003, 2004  Chris Larson
# Copyright (C) 2003, 2004  Phil Blundell
# Copyright (C) 2003 - 2005 Michael 'Mickey' Lauer
# Copyright (C) 2005        Holger Hans Peter Freyther
# Copyright (C) 2005        ROAD GmbH
# Copyright (C) 2006        Richard Purdie
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import os
import sys, logging
sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(__file__)),
                                'lib'))

import optparse
import warnings
from traceback import format_exception
try:
    import bb
except RuntimeError as exc:
    sys.exit(str(exc))
from bb import event
import bb.msg
from bb import cooker
from bb import ui
from bb import server

__version__ = "1.15.2"
logger = logging.getLogger("BitBake")


class BBConfiguration(object):
    """
    Manages build options and configurations for one run
    """

    def __init__(self, options):
        for key, val in options.__dict__.items():
            setattr(self, key, val)
        self.pkgs_to_build = []


def get_ui(config):
    if not config.ui:
        # modify 'ui' attribute because it is also read by cooker
        config.ui = os.environ.get('BITBAKE_UI', 'knotty')

    interface = config.ui

    try:
        # Dynamically load the UI based on the ui name. Although we
        # suggest a fixed set this allows you to have flexibility in which
        # ones are available.
        module = __import__("bb.ui", fromlist = [interface])
        return getattr(module, interface).main
    except AttributeError:
        sys.exit("FATAL: Invalid user interface '%s' specified.\n"
                 "Valid interfaces: depexp, goggle, ncurses, hob, knotty [default], knotty2." % interface)


# Display bitbake/OE warnings via the BitBake.Warnings logger, ignoring others"""
warnlog = logging.getLogger("BitBake.Warnings")
_warnings_showwarning = warnings.showwarning
def _showwarning(message, category, filename, lineno, file=None, line=None):
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno)
        warnlog.warn(s)

warnings.showwarning = _showwarning
warnings.filterwarnings("ignore")
warnings.filterwarnings("default", module="(<string>$|(oe|bb)\.)")
warnings.filterwarnings("ignore", category=PendingDeprecationWarning)
warnings.filterwarnings("ignore", category=ImportWarning)
warnings.filterwarnings("ignore", category=DeprecationWarning, module="<string>$")
warnings.filterwarnings("ignore", message="With-statements now directly support multiple context managers")


def main():
    parser = optparse.OptionParser(
        version = "BitBake Build Tool Core version %s, %%prog version %s" % (bb.__version__, __version__),
        usage = """%prog [options] [package ...]

Executes the specified task (default is 'build') for a given set of BitBake files.
It expects that BBFILES is defined, which is a space separated list of files to
be executed.  BBFILES does support wildcards.
Default BBFILES are the .bb files in the current directory.""")

    parser.add_option("-b", "--buildfile", help = "execute the task against this .bb file, rather than a package from BBFILES. Does not handle any dependencies.",
               action = "store", dest = "buildfile", default = None)

    parser.add_option("-k", "--continue", help = "continue as much as possible after an error. While the target that failed, and those that depend on it, cannot be remade, the other dependencies of these targets can be processed all the same.",
               action = "store_false", dest = "abort", default = True)

    parser.add_option("-a", "--tryaltconfigs", help = "continue with builds by trying to use alternative providers where possible.",
               action = "store_true", dest = "tryaltconfigs", default = False)

    parser.add_option("-f", "--force", help = "force run of specified cmd, regardless of stamp status",
               action = "store_true", dest = "force", default = False)

    parser.add_option("-c", "--cmd", help = "Specify task to execute. Note that this only executes the specified task for the providee and the packages it depends on, i.e. 'compile' does not implicitly call stage for the dependencies (IOW: use only if you know what you are doing). Depending on the base.bbclass a listtasks tasks is defined and will show available tasks",
               action = "store", dest = "cmd")

    parser.add_option("-C", "--clear-stamp", help = "Invalidate the stamp for the specified cmd such as 'compile' and run the default task for the specified target(s)",
                action = "store", dest = "invalidate_stamp")

    parser.add_option("-r", "--read", help = "read the specified file before bitbake.conf",
               action = "append", dest = "prefile", default = [])

    parser.add_option("-R", "--postread", help = "read the specified file after bitbake.conf",
                      action = "append", dest = "postfile", default = [])

    parser.add_option("-v", "--verbose", help = "output more chit-chat to the terminal",
               action = "store_true", dest = "verbose", default = False)

    parser.add_option("-D", "--debug", help = "Increase the debug level. You can specify this more than once.",
               action = "count", dest="debug", default = 0)

    parser.add_option("-n", "--dry-run", help = "don't execute, just go through the motions",
               action = "store_true", dest = "dry_run", default = False)

    parser.add_option("-S", "--dump-signatures", help = "don't execute, just dump out the signature construction information",
               action = "store_true", dest = "dump_signatures", default = False)

    parser.add_option("-p", "--parse-only", help = "quit after parsing the BB files (developers only)",
               action = "store_true", dest = "parse_only", default = False)

    parser.add_option("-s", "--show-versions", help = "show current and preferred versions of all packages",
               action = "store_true", dest = "show_versions", default = False)

    parser.add_option("-e", "--environment", help = "show the global or per-package environment (this is what used to be bbread)",
               action = "store_true", dest = "show_environment", default = False)

    parser.add_option("-g", "--graphviz", help = "emit the dependency trees of the specified packages in the dot syntax",
                action = "store_true", dest = "dot_graph", default = False)

    parser.add_option("-I", "--ignore-deps", help = """Assume these dependencies don't exist and are already provided (equivalent to ASSUME_PROVIDED). Useful to make dependency graphs more appealing""",
                action = "append", dest = "extra_assume_provided", default = [])

    parser.add_option("-l", "--log-domains", help = """Show debug logging for the specified logging domains""",
                action = "append", dest = "debug_domains", default = [])

    parser.add_option("-P", "--profile", help = "profile the command and print a report",
               action = "store_true", dest = "profile", default = False)

    parser.add_option("-u", "--ui", help = "userinterface to use",
               action = "store", dest = "ui")

    parser.add_option("-t", "--servertype", help = "Choose which server to use, none, process or xmlrpc",
               action = "store", dest = "servertype")

    parser.add_option("", "--revisions-changed", help = "Set the exit code depending on whether upstream floating revisions have changed or not",
               action = "store_true", dest = "revisions_changed", default = False)

    parser.add_option("", "--server-only", help = "Run bitbake without UI,  the frontend can connect with bitbake server itself",
               action = "store_true", dest = "server_only", default = False)

    parser.add_option("-B", "--bind", help = "The name/address for the bitbake server to bind to",
               action = "store", dest = "bind", default = False)
    options, args = parser.parse_args(sys.argv)

    configuration = BBConfiguration(options)
    configuration.pkgs_to_build.extend(args[1:])

    ui_main = get_ui(configuration)

    # Server type can be xmlrpc, process or none currently, if nothing is specified,
    # the default server is process
    if configuration.servertype:
        server_type = configuration.servertype
    else:
        server_type = 'process'

    try:
        module = __import__("bb.server", fromlist = [server_type])
        server = getattr(module, server_type)
    except AttributeError:
        sys.exit("FATAL: Invalid server type '%s' specified.\n"
                 "Valid interfaces: xmlrpc, process [default], none." % servertype)

    if configuration.server_only:
        if configuration.servertype != "xmlrpc":
            sys.exit("FATAL: If '--server-only' is defined, we must set the servertype as 'xmlrpc'.\n")
        if not configuration.bind:
            sys.exit("FATAL: The '--server-only' option requires a name/address to bind to with the -B option.\n")

    if configuration.bind and configuration.servertype != "xmlrpc":
        sys.exit("FATAL: If '-B' or '--bind' is defined, we must set the servertype as 'xmlrpc'.\n")

    # Save a logfile for cooker into the current working directory. When the
    # server is daemonized this logfile will be truncated.
    cooker_logfile = os.path.join(os.getcwd(), "cooker.log")

    bb.msg.init_msgconfig(configuration.verbose, configuration.debug,
                         configuration.debug_domains)

    # Ensure logging messages get sent to the UI as events
    handler = bb.event.LogHandler()
    logger.addHandler(handler)

    # Before we start modifying the environment we should take a pristine
    # copy for possible later use
    initialenv = os.environ.copy()
    # Clear away any spurious environment variables. But don't wipe the
    # environment totally. This is necessary to ensure the correct operation
    # of the UIs (e.g. for DISPLAY, etc.)
    bb.utils.clean_environment()

    server = server.BitBakeServer()
    if configuration.bind:
        server.initServer((configuration.bind, 0))
    else:
        server.initServer()

    idle = server.getServerIdleCB()

    cooker = bb.cooker.BBCooker(configuration, idle, initialenv)
    cooker.parseCommandLine()

    server.addcooker(cooker)
    server.saveConnectionDetails()
    server.detach(cooker_logfile)

    # Should no longer need to ever reference cooker
    del cooker

    logger.removeHandler(handler)

    if not configuration.server_only:
        # Setup a connection to the server (cooker)
        server_connection = server.establishConnection()

        try:
            return server.launchUI(ui_main, server_connection.connection, server_connection.events)
        finally:
            bb.event.ui_queue = []
            server_connection.terminate()
    else:
        print("server address: %s, server port: %s" % (server.serverinfo.host, server.serverinfo.port))

    return 1

if __name__ == "__main__":
    try:
        ret = main()
    except Exception:
        ret = 1
        import traceback
        traceback.print_exc(5)
    sys.exit(ret)