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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  Chris Larson
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
# 
# 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., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA. 

import sys, os
sys.path.append(os.path.join(os.path.dirname(os.path.dirname(sys.argv[0])), 'lib'))
import bb
from bb import *

__version__ = 1.0
type = "jffs2"
cfg_bb = data.init()
cfg_oespawn = data.init()


def usage():
    print "Usage: bbimage [options ...]"
    print "Creates an image for a target device from a root filesystem,"
    print "obeying configuration parameters from the BitBake"
    print "configuration files, thereby easing handling of deviceisms."
    print ""
    print "  %s\t\t%s" % ("-r [arg], --root [arg]", "root directory (default=${IMAGE_ROOTFS})")
    print "  %s\t\t%s" % ("-t [arg], --type [arg]", "image type (jffs2[default], cramfs)")
    print "  %s\t\t%s" % ("-n [arg], --name [arg]", "image name (override IMAGE_NAME variable)")
    print "  %s\t\t%s" % ("-v, --version", "output version information and exit")
    sys.exit(0)

def version():
    print "BitBake Build Tool Core version %s" % bb.__version__
    print "BBImage version %s" % __version__

def emit_bb(d, base_d = {}):
    for v in d.keys():
        if d[v] != base_d[v]:
            data.emit_var(v, d)

def getopthash(l):
    h = {}
    for (opt, val) in l:
        h[opt] = val
    return h

import getopt
try:
    (opts, args) = getopt.getopt(sys.argv[1:], 'vr:t:e:n:', [ 'version', 'root=', 'type=', 'bbfile=', 'name=' ])
except getopt.GetoptError:
    usage()

# handle opts
opthash = getopthash(opts)

if '--version' in opthash or '-v' in opthash:
    version()
    sys.exit(0)

try:
    cfg_bb = parse.handle(os.path.join('conf', 'bitbake.conf'), cfg_bb)
except IOError:
    fatal("Unable to open bitbake.conf")

# sanity check
if cfg_bb is None:
    fatal("Unable to open/parse %s" % os.path.join('conf', 'bitbake.conf'))
    usage(1)

rootfs = None
extra_files = []

if '--root' in opthash:
    rootfs = opthash['--root']
if '-r' in opthash:
    rootfs = opthash['-r']

if '--type' in opthash:
    type = opthash['--type']
if '-t' in opthash:
    type = opthash['-t']

if '--bbfile' in opthash:
    extra_files.append(opthash['--bbfile'])
if '-e' in opthash:
    extra_files.append(opthash['-e'])

for f in extra_files:
    try:
        cfg_bb = parse.handle(f, cfg_bb)
    except IOError:
        print "unable to open %s" % f

if not rootfs:
    rootfs = data.getVar('IMAGE_ROOTFS', cfg_bb, 1)

if not rootfs:
    bb.fatal("IMAGE_ROOTFS not defined")

data.setVar('IMAGE_ROOTFS', rootfs, cfg_bb)

from copy import copy, deepcopy
localdata = data.createCopy(cfg_bb)

overrides = data.getVar('OVERRIDES', localdata)
if not overrides:
    bb.fatal("OVERRIDES not defined.")
data.setVar('OVERRIDES', '%s:%s' % (overrides, type), localdata)
data.update_data(localdata)
data.setVar('OVERRIDES', overrides, localdata)

if '-n' in opthash:
    data.setVar('IMAGE_NAME', opthash['-n'], localdata)
if '--name' in opthash:
    data.setVar('IMAGE_NAME', opthash['--name'], localdata)

topdir = data.getVar('TOPDIR', localdata, 1) or os.getcwd()

cmd = data.getVar('IMAGE_CMD', localdata, 1)
if not cmd:
    bb.fatal("IMAGE_CMD not defined")

outdir = data.getVar('DEPLOY_DIR_IMAGE', localdata, 1)
if not outdir:
    bb.fatal('DEPLOY_DIR_IMAGE not defined')
mkdirhier(outdir)

#depends = data.getVar('IMAGE_DEPENDS', localdata, 1) or ""
#if depends:
#       bb.note("Spawning bbmake to satisfy dependencies: %s" % depends)
#       ret = os.system('bbmake %s' % depends)
#       if ret != 0:
#           bb.error("executing bbmake to satisfy dependencies")

bb.note("Executing %s" % cmd)
data.setVar('T', '${TMPDIR}', localdata)
data.setVar('image_cmd', cmd, localdata)
data.setVarFlag('image_cmd', 'func', 1, localdata)
try:
    bb.build.exec_func('image_cmd', localdata)
except bb.build.FuncFailed:
    sys.exit(1)
#ret = os.system(cmd)
#sys.exit(ret)