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0c57dd96c8
Print statements have been replaced with print function in Python 3. Replaced them in wic code to be able to run it under both Python 2 and Python 3. [YOCTO #9412] (From OE-Core rev: ee6979a19c77931c3cf6368e695e370d46192fef) Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
252 lines
7.8 KiB
Python
252 lines
7.8 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#
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# Copyright (c) 2013, Intel Corporation.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# DESCRIPTION
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# This module provides a place to collect various wic-related utils
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# for the OpenEmbedded Image Tools.
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#
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# AUTHORS
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# Tom Zanussi <tom.zanussi (at] linux.intel.com>
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#
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"""Miscellaneous functions."""
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import os
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from collections import defaultdict
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from wic import msger
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from wic.utils import runner
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# executable -> recipe pairs for exec_native_cmd
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NATIVE_RECIPES = {"mcopy": "mtools",
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"mkdosfs": "dosfstools",
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"mkfs.btrfs": "btrfs-tools",
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"mkfs.ext2": "e2fsprogs",
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"mkfs.ext3": "e2fsprogs",
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"mkfs.ext4": "e2fsprogs",
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"mkfs.vfat": "dosfstools",
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"mksquashfs": "squashfs-tools",
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"mkswap": "util-linux",
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"parted": "parted",
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"sfdisk": "util-linux",
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"sgdisk": "gptfdisk",
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"syslinux": "syslinux"
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}
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def _exec_cmd(cmd_and_args, as_shell=False, catch=3):
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"""
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Execute command, catching stderr, stdout
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Need to execute as_shell if the command uses wildcards
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"""
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msger.debug("_exec_cmd: %s" % cmd_and_args)
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args = cmd_and_args.split()
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msger.debug(args)
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if as_shell:
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ret, out = runner.runtool(cmd_and_args, catch)
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else:
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ret, out = runner.runtool(args, catch)
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out = out.strip()
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msger.debug("_exec_cmd: output for %s (rc = %d): %s" % \
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(cmd_and_args, ret, out))
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return (ret, out)
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def exec_cmd(cmd_and_args, as_shell=False, catch=3):
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"""
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Execute command, catching stderr, stdout
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Exits if rc non-zero
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"""
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ret, out = _exec_cmd(cmd_and_args, as_shell, catch)
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if ret != 0:
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msger.error("exec_cmd: %s returned '%s' instead of 0" % \
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(cmd_and_args, ret))
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return out
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def cmd_in_path(cmd, path):
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import scriptpath
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scriptpath.add_bitbake_lib_path()
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return bb.utils.which(path, cmd) != "" or False
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def exec_native_cmd(cmd_and_args, native_sysroot, catch=3, pseudo=""):
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"""
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Execute native command, catching stderr, stdout
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Need to execute as_shell if the command uses wildcards
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Always need to execute native commands as_shell
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"""
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# The reason -1 is used is because there may be "export" commands.
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args = cmd_and_args.split(';')[-1].split()
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msger.debug(args)
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if pseudo:
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cmd_and_args = pseudo + cmd_and_args
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native_paths = \
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"%s/sbin:%s/usr/sbin:%s/usr/bin" % \
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(native_sysroot, native_sysroot, native_sysroot)
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native_cmd_and_args = "export PATH=%s:$PATH;%s" % \
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(native_paths, cmd_and_args)
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msger.debug("exec_native_cmd: %s" % cmd_and_args)
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# If the command isn't in the native sysroot say we failed.
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if cmd_in_path(args[0], native_paths):
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ret, out = _exec_cmd(native_cmd_and_args, True, catch)
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else:
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ret = 127
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prog = args[0]
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# shell command-not-found
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if ret == 127 \
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or (pseudo and ret == 1 and out == "Can't find '%s' in $PATH." % prog):
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msg = "A native program %s required to build the image "\
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"was not found (see details above).\n\n" % prog
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recipe = NATIVE_RECIPES.get(prog)
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if recipe:
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msg += "Please bake it with 'bitbake %s-native' "\
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"and try again.\n" % recipe
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else:
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msg += "Wic failed to find a recipe to build native %s. Please "\
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"file a bug against wic.\n" % prog
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msger.error(msg)
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if out:
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msger.debug('"%s" output: %s' % (args[0], out))
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if ret != 0:
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msger.error("exec_cmd: '%s' returned '%s' instead of 0" % \
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(cmd_and_args, ret))
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return ret, out
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BOOTDD_EXTRA_SPACE = 16384
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class BitbakeVars(defaultdict):
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"""
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Container for Bitbake variables.
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"""
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def __init__(self):
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defaultdict.__init__(self, dict)
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# default_image and vars_dir attributes should be set from outside
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self.default_image = None
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self.vars_dir = None
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def _parse_line(self, line, image):
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"""
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Parse one line from bitbake -e output or from .env file.
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Put result key-value pair into the storage.
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"""
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if "=" not in line:
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return
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try:
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key, val = line.split("=")
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except ValueError:
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return
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key = key.strip()
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val = val.strip()
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if key.replace('_', '').isalnum():
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self[image][key] = val.strip('"')
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def get_var(self, var, image=None):
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"""
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Get bitbake variable from 'bitbake -e' output or from .env file.
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This is a lazy method, i.e. it runs bitbake or parses file only when
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only when variable is requested. It also caches results.
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"""
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if not image:
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image = self.default_image
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if image not in self:
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if image and self.vars_dir:
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fname = os.path.join(self.vars_dir, image + '.env')
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if os.path.isfile(fname):
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# parse .env file
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with open(fname) as varsfile:
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for line in varsfile:
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self._parse_line(line, image)
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else:
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print("Couldn't get bitbake variable from %s." % fname)
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print("File %s doesn't exist." % fname)
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return
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else:
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# Get bitbake -e output
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cmd = "bitbake -e"
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if image:
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cmd += " %s" % image
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log_level = msger.get_loglevel()
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msger.set_loglevel('normal')
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ret, lines = _exec_cmd(cmd)
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msger.set_loglevel(log_level)
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if ret:
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print("Couldn't get '%s' output." % cmd)
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print("Bitbake failed with error:\n%s\n" % lines)
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return
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# Parse bitbake -e output
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for line in lines.split('\n'):
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self._parse_line(line, image)
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# Make first image a default set of variables
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images = [key for key in self if key]
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if len(images) == 1:
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self[None] = self[image]
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return self[image].get(var)
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# Create BB_VARS singleton
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BB_VARS = BitbakeVars()
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def get_bitbake_var(var, image=None):
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"""
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Provide old get_bitbake_var API by wrapping
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get_var method of BB_VARS singleton.
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"""
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return BB_VARS.get_var(var, image)
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def parse_sourceparams(sourceparams):
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"""
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Split sourceparams string of the form key1=val1[,key2=val2,...]
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into a dict. Also accepts valueless keys i.e. without =.
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Returns dict of param key/val pairs (note that val may be None).
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"""
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params_dict = {}
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params = sourceparams.split(',')
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if params:
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for par in params:
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if not par:
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continue
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if not '=' in par:
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key = par
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val = None
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else:
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key, val = par.split('=')
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params_dict[key] = val
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return params_dict
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