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#!/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 add_md5(config, recipename, filename):
"""Record checksum of a recipe to the md5-file of the workspace"""
import bb.utils
md5 = bb.utils.md5_file(filename)
with open(os.path.join(config.workspace_path, '.devtool_md5'), 'a') as f:
f.write('%s|%s|%s\n' % (recipename, os.path.relpath(filename, config.workspace_path), md5))
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