poky/bitbake/bin/bitbake-layers

#!/usr/bin/env python

This script has subcommands which operate against your bitbake layers, either

displaying useful information, or acting against them.

See the help output for details on available commands.

import cmd import logging import os import sys

bindir = os.path.dirname(file) topdir = os.path.dirname(bindir) sys.path[0:0] = [os.path.join(topdir, 'lib')]

import bb.cache import bb.cooker import bb.providers import bb.utils from bb.cooker import state import bb.fetch2

logger = logging.getLogger('BitBake')

def main(args): # Set up logging console = logging.StreamHandler(sys.stdout) format = bb.msg.BBLogFormatter("%(levelname)s: %(message)s") bb.msg.addDefaultlogFilter(console) console.setFormatter(format) logger.addHandler(console)

initialenv = os.environ.copy()
bb.utils.clean_environment()

cmds = Commands(initialenv)
if args:
    cmds.onecmd(' '.join(args))
else:
    cmds.do_help('')
return cmds.returncode

class Commands(cmd.Cmd): def init(self, initialenv): cmd.Cmd.init(self) self.returncode = 0 self.config = Config(parse_only=True) self.cooker = bb.cooker.BBCooker(self.config, self.register_idle_function, initialenv) self.config_data = self.cooker.configuration.data bb.providers.logger.setLevel(logging.ERROR) self.cooker_data = None

def register_idle_function(self, function, data):
    pass

def prepare_cooker(self):
    sys.stderr.write("Parsing recipes..")
    logger.setLevel(logging.WARNING)

    try:
        while self.cooker.state in (state.initial, state.parsing):
            self.cooker.updateCache()
    except KeyboardInterrupt:
        self.cooker.shutdown()
        self.cooker.updateCache()
        sys.exit(2)

    logger.setLevel(logging.INFO)
    sys.stderr.write("done.\n")

    self.cooker_data = self.cooker.status
    self.cooker_data.appends = self.cooker.appendlist

def check_prepare_cooker(self):
    if not self.cooker_data:
        self.prepare_cooker()

def default(self, line):
    """Handle unrecognised commands"""
    sys.stderr.write("Unrecognised command or option\n")
    self.do_help('')

def do_help(self, topic):
    """display general help or help on a specified command"""
    if topic:
        sys.stdout.write('%s: ' % topic)
        cmd.Cmd.do_help(self,topic)
    else:
        sys.stdout.write("usage: bitbake-layers <command> [arguments]\n\n")
        sys.stdout.write("Available commands:\n")
        procnames = self.get_names()
        for procname in procnames:
            if procname[:3] == 'do_':
                sys.stdout.write("  %s\n" % procname[3:])
                doc = getattr(self, procname).__doc__
                if doc:
                    sys.stdout.write("    %s\n" % doc.splitlines()[0])

def do_show_layers(self, args):
    """show current configured layers"""
    self.check_prepare_cooker()
    logger.plain('')
    logger.plain("%s  %s  %s" % ("layer".ljust(20), "path".ljust(40), "priority"))
    logger.plain('=' * 74)
    layerdirs = str(self.config_data.getVar('BBLAYERS', True)).split()
    for layerdir in layerdirs:
        layername = '?'
        layerpri = 0
        for layer, _, regex, pri in self.cooker.status.bbfile_config_priorities:
            if regex.match(os.path.join(layerdir, 'test')):
                layername = layer
                layerpri = pri
                break

        logger.plain("%s  %s  %d" % (layername.ljust(20), layerdir.ljust(40), layerpri))

def do_show_overlayed(self, args):
    """list overlayed recipes (where there is a recipe in another layer that has a higher layer priority)

usage: show_overlayed

Highest priority recipes are listed with the recipes they overlay as subitems. """ self.check_prepare_cooker() if self.cooker.overlayed: logger.plain('Overlayed recipes:') for f in self.cooker.overlayed.iterkeys(): logger.plain('%s' % f) for of in self.cooker.overlayed[f]: logger.plain(' %s' % of) else: logger.plain('No overlayed recipes found')

def do_flatten(self, args):
    """flattens layer configuration into a separate output directory.

usage: flatten [layer1 layer2 [layer3]...]

Takes the specified layers (or all layers in the current layer configuration if none are specified) and builds a "flattened" directory containing the contents of all layers, with any overlayed recipes removed and bbappends appended to the corresponding recipes. Note that some manual cleanup may still be necessary afterwards, in particular:

• where non-recipe files (such as patches) are overwritten (the flatten command will show a warning for these)
• where anything beyond the normal layer setup has been added to layer.conf (only the lowest priority number layer's layer.conf is used)
• overridden/appended items from bbappends will need to be tidied up

Warning: if you flatten several layers where another layer is intended to be used "inbetween" them (in layer priority order) such that recipes / bbappends in the layers interact, and then attempt to use the new output layer together with that other layer, you may no longer get the same build results (as the layer priority order has effectively changed). """ arglist = args.split() if len(arglist) < 1: logger.error('Please specify an output directory') self.do_help('flatten') return

    if len(arglist) == 2:
        logger.error('If you specify layers to flatten you must specify at least two')
        self.do_help('flatten')
        return

    outputdir = arglist[-1]
    if os.path.exists(outputdir) and os.listdir(outputdir):
        logger.error('Directory %s exists and is non-empty, please clear it out first' % outputdir)
        return

    self.check_prepare_cooker()
    layers = (self.config_data.getVar('BBLAYERS', True) or "").split()
    if len(arglist) > 2:
        layernames = arglist[:-1]
        found_layernames = []
        found_layerdirs = []
        for layerdir in layers:
            for layername, _, regex, _ in self.cooker.status.bbfile_config_priorities:
                if layername in layernames:
                    if regex.match(os.path.join(layerdir, 'test')):
                        found_layerdirs.append(layerdir)
                        found_layernames.append(layername)
                        break

        for layername in layernames:
            if not layername in found_layernames:
                logger.error('Unable to find layer %s in current configuration, please run "%s show_layers" to list configured layers' % (layername, os.path.basename(sys.argv[0])))
                return
        layers = found_layerdirs

    # Ensure a specified path matches our list of layers
    def layer_path_match(path):
        for layerdir in layers:
            if path.startswith(os.path.join(layerdir, '')):
                return layerdir
        return None

    appended_recipes = []
    for layer in layers:
        overlayed = []
        for f in self.cooker.overlayed.iterkeys():
            for of in self.cooker.overlayed[f]:
                if of.startswith(layer):
                    overlayed.append(of)

        logger.plain('Copying files from %s...' % layer )
        for root, dirs, files in os.walk(layer):
            for f1 in files:
                f1full = os.sep.join([root, f1])
                if f1full in overlayed:
                    logger.plain('  Skipping overlayed file %s' % f1full )
                else:
                    ext = os.path.splitext(f1)[1]
                    if ext != '.bbappend':
                        fdest = f1full[len(layer):]
                        fdest = os.path.normpath(os.sep.join([outputdir,fdest]))
                        bb.utils.mkdirhier(os.path.dirname(fdest))
                        if os.path.exists(fdest):
                            if f1 == 'layer.conf' and root.endswith('/conf'):
                                logger.plain('  Skipping layer config file %s' % f1full )
                                continue
                            else:
                                logger.warn('Overwriting file %s', fdest)
                        bb.utils.copyfile(f1full, fdest)
                        if ext == '.bb':
                            if f1 in self.cooker_data.appends:
                                appends = self.cooker_data.appends[f1]
                                if appends:
                                    logger.plain('  Applying appends to %s' % fdest )
                                    for appendname in appends:
                                        if layer_path_match(appendname):
                                            self.apply_append(appendname, fdest)
                                appended_recipes.append(f1)

    # Take care of when some layers are excluded and yet we have included bbappends for those recipes
    for recipename in self.cooker_data.appends.iterkeys():
        if recipename not in appended_recipes:
            appends = self.cooker_data.appends[recipename]
            first_append = None
            for appendname in appends:
                layer = layer_path_match(appendname)
                if layer:
                    if first_append:
                        self.apply_append(appendname, first_append)
                    else:
                        fdest = appendname[len(layer):]
                        fdest = os.path.normpath(os.sep.join([outputdir,fdest]))
                        bb.utils.mkdirhier(os.path.dirname(fdest))
                        bb.utils.copyfile(appendname, fdest)
                        first_append = fdest


def get_append_layer(self, appendname):
    for layer, _, regex, _ in self.cooker.status.bbfile_config_priorities:
        if regex.match(appendname):
            return layer
    return "?"

def apply_append(self, appendname, recipename):
    appendfile = open(appendname, 'r')
    recipefile = open(recipename, 'a')
    recipefile.write('\n')
    recipefile.write('##### bbappended from %s #####\n' % self.get_append_layer(appendname))
    recipefile.writelines(appendfile.readlines())

def do_show_appends(self, args):
    """list bbappend files and recipe files they apply to

usage: show_appends

Recipes are listed with the bbappends that apply to them as subitems. """ self.check_prepare_cooker() if not self.cooker_data.appends: logger.plain('No append files found') return

    logger.plain('State of append files:')

    pnlist = list(self.cooker_data.pkg_pn.keys())
    pnlist.sort()
    for pn in pnlist:
        self.show_appends_for_pn(pn)

    self.show_appends_for_skipped()

def show_appends_for_pn(self, pn):
    filenames = self.cooker_data.pkg_pn[pn]

    best = bb.providers.findBestProvider(pn,
                                         self.cooker.configuration.data,
                                         self.cooker_data,
                                         self.cooker_data.pkg_pn)
    best_filename = os.path.basename(best[3])

    self.show_appends_output(filenames, best_filename)

def show_appends_for_skipped(self):
    filenames = [os.path.basename(f)
                for f in self.cooker.skiplist.iterkeys()]
    self.show_appends_output(filenames, None, " (skipped)")

def show_appends_output(self, filenames, best_filename, name_suffix = ''):
    appended, missing = self.get_appends_for_files(filenames)
    if appended:
        for basename, appends in appended:
            logger.plain('%s%s:', basename, name_suffix)
            for append in appends:
                logger.plain('  %s', append)

        if best_filename:
            if best_filename in missing:
                logger.warn('%s: missing append for preferred version',
                            best_filename)
                self.returncode |= 1


def get_appends_for_files(self, filenames):
    appended, notappended = [], []
    for filename in filenames:
        _, cls = bb.cache.Cache.virtualfn2realfn(filename)
        if cls:
            continue

        basename = os.path.basename(filename)
        appends = self.cooker_data.appends.get(basename)
        if appends:
            appended.append((basename, list(appends)))
        else:
            notappended.append(basename)
    return appended, notappended

class Config(object): def init(self, **options): self.pkgs_to_build = [] self.debug_domains = [] self.extra_assume_provided = [] self.prefile = [] self.postfile = [] self.debug = 0 self.dict.update(options)

def __getattr__(self, attribute):
    try:
        return super(Config, self).__getattribute__(attribute)
    except AttributeError:
        return None

if name == 'main': sys.exit(main(sys.argv[1:]) or 0)