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Diffstat (limited to 'scripts/lib/compatlayer/__init__.py')
-rw-r--r-- | scripts/lib/compatlayer/__init__.py | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/scripts/lib/compatlayer/__init__.py b/scripts/lib/compatlayer/__init__.py new file mode 100644 index 0000000000..b3a166aa9a --- /dev/null +++ b/scripts/lib/compatlayer/__init__.py @@ -0,0 +1,163 @@ +# Yocto Project compatibility layer tool +# +# Copyright (C) 2017 Intel Corporation +# Released under the MIT license (see COPYING.MIT) + +import os +from enum import Enum + +class LayerType(Enum): + BSP = 0 + DISTRO = 1 + SOFTWARE = 2 + ERROR_NO_LAYER_CONF = 98 + ERROR_BSP_DISTRO = 99 + +def _get_configurations(path): + configs = [] + + for f in os.listdir(path): + file_path = os.path.join(path, f) + if os.path.isfile(file_path) and f.endswith('.conf'): + configs.append(f[:-5]) # strip .conf + return configs + +def _get_layer_collections(layer_path, lconf=None, data=None): + import bb.parse + import bb.data + + if lconf is None: + lconf = os.path.join(layer_path, 'conf', 'layer.conf') + + if data is None: + ldata = bb.data.init() + bb.parse.init_parser(ldata) + else: + ldata = data.createCopy() + + ldata.setVar('LAYERDIR', layer_path) + try: + ldata = bb.parse.handle(lconf, ldata, include=True) + except BaseException as exc: + raise LayerError(exc) + ldata.expandVarref('LAYERDIR') + + collections = (ldata.getVar('BBFILE_COLLECTIONS', True) or '').split() + if not collections: + name = os.path.basename(layer_path) + collections = [name] + + collections = {c: {} for c in collections} + for name in collections: + priority = ldata.getVar('BBFILE_PRIORITY_%s' % name, True) + pattern = ldata.getVar('BBFILE_PATTERN_%s' % name, True) + depends = ldata.getVar('LAYERDEPENDS_%s' % name, True) + collections[name]['priority'] = priority + collections[name]['pattern'] = pattern + collections[name]['depends'] = depends + + return collections + +def _detect_layer(layer_path): + """ + Scans layer directory to detect what type of layer + is BSP, Distro or Software. + + Returns a dictionary with layer name, type and path. + """ + + layer = {} + layer_name = os.path.basename(layer_path) + + layer['name'] = layer_name + layer['path'] = layer_path + layer['conf'] = {} + + if not os.path.isfile(os.path.join(layer_path, 'conf', 'layer.conf')): + layer['type'] = LayerType.ERROR_NO_LAYER_CONF + return layer + + machine_conf = os.path.join(layer_path, 'conf', 'machine') + distro_conf = os.path.join(layer_path, 'conf', 'distro') + + is_bsp = False + is_distro = False + + if os.path.isdir(machine_conf): + machines = _get_configurations(machine_conf) + if machines: + is_bsp = True + + if os.path.isdir(distro_conf): + distros = _get_configurations(distro_conf) + if distros: + is_distro = True + + if is_bsp and is_distro: + layer['type'] = LayerType.ERROR_BSP_DISTRO + elif is_bsp: + layer['type'] = LayerType.BSP + layer['conf']['machines'] = machines + elif is_distro: + layer['type'] = LayerType.DISTRO + layer['conf']['distros'] = distros + else: + layer['type'] = LayerType.SOFTWARE + + layer['collections'] = _get_layer_collections(layer['path']) + + return layer + +def detect_layers(layer_directories): + layers = [] + + for directory in layer_directories: + if directory[-1] == '/': + directory = directory[0:-1] + + for root, dirs, files in os.walk(directory): + dir_name = os.path.basename(root) + conf_dir = os.path.join(root, 'conf') + if dir_name.startswith('meta-') and os.path.isdir(conf_dir): + layer = _detect_layer(root) + if layer: + layers.append(layer) + + return layers + +def add_layer(bblayersconf, layer): + with open(bblayersconf, 'a+') as f: + f.write("\nBBLAYERS += \"%s\"\n" % layer['path']) + +def get_signatures(builddir, failsafe=False): + import subprocess + import re + + sigs = {} + + try: + cmd = 'bitbake ' + if failsafe: + cmd += '-k ' + cmd += '-S none world' + output = subprocess.check_output(cmd, shell=True, + stderr=subprocess.PIPE) + except subprocess.CalledProcessError as e: + import traceback + exc = traceback.format_exc() + msg = '%s\n%s\n' % (exc, e.output.decode('utf-8')) + raise RuntimeError(msg) + sigs_file = os.path.join(builddir, 'locked-sigs.inc') + + sig_regex = re.compile("^(?P<task>.*:.*):(?P<hash>.*) .$") + with open(sigs_file, 'r') as f: + for line in f.readlines(): + line = line.strip() + s = sig_regex.match(line) + if s: + sigs[s.group('task')] = s.group('hash') + + if not sigs: + raise RuntimeError('Can\'t load signatures from %s' % sigs_file) + + return sigs |