#!/usr/bin/env python

import os
import sys
import warnings
sys.path.insert(0, os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))

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

    def __init__(self):
        setattr(self, "data", {})
        setattr(self, "file", [])
        setattr(self, "cmd", None)

_warnings_showwarning = warnings.showwarning
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """Display python warning messages using bb.msg"""
    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)
        s = s.split("\n")[0]
        bb.msg.warn(None, s)

warnings.showwarning = _showwarning
warnings.simplefilter("ignore", DeprecationWarning)

import bb.event

# Need to map our I/O correctly. Currently stdout is a pipe to 
# the server expecting events. We save this and map stdout to stderr.

eventfd = os.dup(sys.stdout.fileno())
bb.event.worker_pipe = os.fdopen(eventfd, 'w', 0)
# Replace those fds with our own
os.dup2(sys.stderr.fileno(), sys.stdout.fileno())

# Save out the PID so that the event can include it the
# events
bb.event.worker_pid = os.getpid()
bb.event.usestdout = False


import bb.cooker

cooker = bb.cooker.BBCooker(BBConfiguration(), None)
buildfile = sys.argv[1]
taskname = sys.argv[2]

cooker.parseConfiguration()

cooker.bb_cache = bb.cache.init(cooker)
cooker.status = bb.cache.CacheData()

(fn, cls) = cooker.bb_cache.virtualfn2realfn(buildfile)
buildfile = cooker.matchFile(fn)
fn = cooker.bb_cache.realfn2virtual(buildfile, cls)

cooker.buildSetVars()

# Load data into the cache for fn and parse the loaded cache data
the_data = cooker.bb_cache.loadDataFull(fn, cooker.get_file_appends(fn), cooker.configuration.data)
cooker.bb_cache.setData(fn, buildfile, the_data)
cooker.bb_cache.handle_data(fn, cooker.status)

if taskname.endswith("_setscene"):
    the_data.setVarFlag(taskname, "quieterrors", "1")

ret = 0
if sys.argv[3] != "True":
    ret = bb.build.exec_task(taskname, the_data)
sys.exit(ret)