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Diffstat (limited to 'yocto-poky/scripts/lib/devtool/__init__.py')
-rw-r--r-- | yocto-poky/scripts/lib/devtool/__init__.py | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/yocto-poky/scripts/lib/devtool/__init__.py b/yocto-poky/scripts/lib/devtool/__init__.py new file mode 100644 index 000000000..404d3e664 --- /dev/null +++ b/yocto-poky/scripts/lib/devtool/__init__.py @@ -0,0 +1,138 @@ +#!/usr/bin/env python + +# Development tool - utility functions for plugins +# +# Copyright (C) 2014 Intel Corporation +# +# 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. +"""Devtool plugins module""" + +import os +import sys +import subprocess +import logging + +logger = logging.getLogger('devtool') + + +class DevtoolError(Exception): + """Exception for handling devtool errors""" + pass + + +def exec_build_env_command(init_path, builddir, cmd, watch=False, **options): + """Run a program in bitbake build context""" + import bb + if not 'cwd' in options: + options["cwd"] = builddir + if init_path: + # As the OE init script makes use of BASH_SOURCE to determine OEROOT, + # and can't determine it when running under dash, we need to set + # the executable to bash to correctly set things up + if not 'executable' in options: + options['executable'] = 'bash' + logger.debug('Executing command: "%s" using init path %s' % (cmd, init_path)) + init_prefix = '. %s %s > /dev/null && ' % (init_path, builddir) + else: + logger.debug('Executing command "%s"' % cmd) + init_prefix = '' + if watch: + if sys.stdout.isatty(): + # Fool bitbake into thinking it's outputting to a terminal (because it is, indirectly) + cmd = 'script -e -q -c "%s" /dev/null' % cmd + return exec_watch('%s%s' % (init_prefix, cmd), **options) + else: + return bb.process.run('%s%s' % (init_prefix, cmd), **options) + +def exec_watch(cmd, **options): + """Run program with stdout shown on sys.stdout""" + import bb + if isinstance(cmd, basestring) and not "shell" in options: + options["shell"] = True + + process = subprocess.Popen( + cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, **options + ) + + buf = '' + while True: + out = process.stdout.read(1) + if out: + sys.stdout.write(out) + sys.stdout.flush() + buf += out + elif out == '' and process.poll() != None: + break + + if process.returncode != 0: + raise bb.process.ExecutionError(cmd, process.returncode, buf, None) + + return buf, None + +def exec_fakeroot(d, cmd, **kwargs): + """Run a command under fakeroot (pseudo, in fact) so that it picks up the appropriate file permissions""" + # Grab the command and check it actually exists + fakerootcmd = d.getVar('FAKEROOTCMD', True) + if not os.path.exists(fakerootcmd): + logger.error('pseudo executable %s could not be found - have you run a build yet? pseudo-native should install this and if you have run any build then that should have been built') + return 2 + # Set up the appropriate environment + newenv = dict(os.environ) + fakerootenv = d.getVar('FAKEROOTENV', True) + for varvalue in fakerootenv.split(): + if '=' in varvalue: + splitval = varvalue.split('=', 1) + newenv[splitval[0]] = splitval[1] + return subprocess.call("%s %s" % (fakerootcmd, cmd), env=newenv, **kwargs) + +def setup_tinfoil(config_only=False): + """Initialize tinfoil api from bitbake""" + import scriptpath + bitbakepath = scriptpath.add_bitbake_lib_path() + if not bitbakepath: + logger.error("Unable to find bitbake by searching parent directory of this script or PATH") + sys.exit(1) + + import bb.tinfoil + tinfoil = bb.tinfoil.Tinfoil() + tinfoil.prepare(config_only) + tinfoil.logger.setLevel(logger.getEffectiveLevel()) + return tinfoil + +def get_recipe_file(cooker, pn): + """Find recipe file corresponding a package name""" + import oe.recipeutils + recipefile = oe.recipeutils.pn_to_recipe(cooker, pn) + if not recipefile: + skipreasons = oe.recipeutils.get_unavailable_reasons(cooker, pn) + if skipreasons: + logger.error('\n'.join(skipreasons)) + else: + logger.error("Unable to find any recipe file matching %s" % pn) + return recipefile + +def parse_recipe(config, tinfoil, pn, appends): + """Parse recipe of a package""" + import oe.recipeutils + recipefile = get_recipe_file(tinfoil.cooker, pn) + if not recipefile: + # Error already logged + return None + if appends: + append_files = tinfoil.cooker.collection.get_file_appends(recipefile) + # Filter out appends from the workspace + append_files = [path for path in append_files if + not path.startswith(config.workspace_path)] + return oe.recipeutils.parse_recipe(recipefile, append_files, + tinfoil.config_data) |