Yocto 2.4

Move OpenBMC to Yocto 2.4(rocko)

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I12057b18610d6fb0e6903c60213690301e9b0c67
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/yocto-poky/scripts/lib/wic/misc.py b/import-layers/yocto-poky/scripts/lib/wic/misc.py
new file mode 100644
index 0000000..ee888b4
--- /dev/null
+++ b/import-layers/yocto-poky/scripts/lib/wic/misc.py
@@ -0,0 +1,263 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# Copyright (c) 2013, Intel Corporation.
+# All rights reserved.
+#
+# 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.
+#
+# DESCRIPTION
+# This module provides a place to collect various wic-related utils
+# for the OpenEmbedded Image Tools.
+#
+# AUTHORS
+# Tom Zanussi <tom.zanussi (at] linux.intel.com>
+#
+"""Miscellaneous functions."""
+
+import logging
+import os
+import re
+import subprocess
+
+from collections import defaultdict
+from distutils import spawn
+
+from wic import WicError
+
+logger = logging.getLogger('wic')
+
+# executable -> recipe pairs for exec_native_cmd
+NATIVE_RECIPES = {"bmaptool": "bmap-tools",
+                  "grub-mkimage": "grub-efi",
+                  "isohybrid": "syslinux",
+                  "mcopy": "mtools",
+                  "mdel" : "mtools",
+                  "mdeltree" : "mtools",
+                  "mdir" : "mtools",
+                  "mkdosfs": "dosfstools",
+                  "mkisofs": "cdrtools",
+                  "mkfs.btrfs": "btrfs-tools",
+                  "mkfs.ext2": "e2fsprogs",
+                  "mkfs.ext3": "e2fsprogs",
+                  "mkfs.ext4": "e2fsprogs",
+                  "mkfs.vfat": "dosfstools",
+                  "mksquashfs": "squashfs-tools",
+                  "mkswap": "util-linux",
+                  "mmd": "mtools",
+                  "parted": "parted",
+                  "sfdisk": "util-linux",
+                  "sgdisk": "gptfdisk",
+                  "syslinux": "syslinux"
+                 }
+
+def runtool(cmdln_or_args):
+    """ wrapper for most of the subprocess calls
+    input:
+        cmdln_or_args: can be both args and cmdln str (shell=True)
+    return:
+        rc, output
+    """
+    if isinstance(cmdln_or_args, list):
+        cmd = cmdln_or_args[0]
+        shell = False
+    else:
+        import shlex
+        cmd = shlex.split(cmdln_or_args)[0]
+        shell = True
+
+    sout = subprocess.PIPE
+    serr = subprocess.STDOUT
+
+    try:
+        process = subprocess.Popen(cmdln_or_args, stdout=sout,
+                                   stderr=serr, shell=shell)
+        sout, serr = process.communicate()
+        # combine stdout and stderr, filter None out and decode
+        out = ''.join([out.decode('utf-8') for out in [sout, serr] if out])
+    except OSError as err:
+        if err.errno == 2:
+            # [Errno 2] No such file or directory
+            raise WicError('Cannot run command: %s, lost dependency?' % cmd)
+        else:
+            raise # relay
+
+    return process.returncode, out
+
+def _exec_cmd(cmd_and_args, as_shell=False):
+    """
+    Execute command, catching stderr, stdout
+
+    Need to execute as_shell if the command uses wildcards
+    """
+    logger.debug("_exec_cmd: %s", cmd_and_args)
+    args = cmd_and_args.split()
+    logger.debug(args)
+
+    if as_shell:
+        ret, out = runtool(cmd_and_args)
+    else:
+        ret, out = runtool(args)
+    out = out.strip()
+    if ret != 0:
+        raise WicError("_exec_cmd: %s returned '%s' instead of 0\noutput: %s" % \
+                       (cmd_and_args, ret, out))
+
+    logger.debug("_exec_cmd: output for %s (rc = %d): %s",
+                 cmd_and_args, ret, out)
+
+    return ret, out
+
+
+def exec_cmd(cmd_and_args, as_shell=False):
+    """
+    Execute command, return output
+    """
+    return _exec_cmd(cmd_and_args, as_shell)[1]
+
+
+def exec_native_cmd(cmd_and_args, native_sysroot, pseudo=""):
+    """
+    Execute native command, catching stderr, stdout
+
+    Need to execute as_shell if the command uses wildcards
+
+    Always need to execute native commands as_shell
+    """
+    # The reason -1 is used is because there may be "export" commands.
+    args = cmd_and_args.split(';')[-1].split()
+    logger.debug(args)
+
+    if pseudo:
+        cmd_and_args = pseudo + cmd_and_args
+
+    native_paths = "%s/sbin:%s/usr/sbin:%s/usr/bin" % \
+                   (native_sysroot, native_sysroot, native_sysroot)
+
+    native_cmd_and_args = "export PATH=%s:$PATH;%s" % \
+                   (native_paths, cmd_and_args)
+    logger.debug("exec_native_cmd: %s", native_cmd_and_args)
+
+    # If the command isn't in the native sysroot say we failed.
+    if spawn.find_executable(args[0], native_paths):
+        ret, out = _exec_cmd(native_cmd_and_args, True)
+    else:
+        ret = 127
+        out = "can't find native executable %s in %s" % (args[0], native_paths)
+
+    prog = args[0]
+    # shell command-not-found
+    if ret == 127 \
+       or (pseudo and ret == 1 and out == "Can't find '%s' in $PATH." % prog):
+        msg = "A native program %s required to build the image "\
+              "was not found (see details above).\n\n" % prog
+        recipe = NATIVE_RECIPES.get(prog)
+        if recipe:
+            msg += "Please make sure wic-tools have %s-native in its DEPENDS, "\
+                   "build it with 'bitbake wic-tools' and try again.\n" % recipe
+        else:
+            msg += "Wic failed to find a recipe to build native %s. Please "\
+                   "file a bug against wic.\n" % prog
+        raise WicError(msg)
+
+    return ret, out
+
+BOOTDD_EXTRA_SPACE = 16384
+
+class BitbakeVars(defaultdict):
+    """
+    Container for Bitbake variables.
+    """
+    def __init__(self):
+        defaultdict.__init__(self, dict)
+
+        # default_image and vars_dir attributes should be set from outside
+        self.default_image = None
+        self.vars_dir = None
+
+    def _parse_line(self, line, image, matcher=re.compile(r"^([a-zA-Z0-9\-_+./~]+)=(.*)")):
+        """
+        Parse one line from bitbake -e output or from .env file.
+        Put result key-value pair into the storage.
+        """
+        if "=" not in line:
+            return
+        match = matcher.match(line)
+        if not match:
+            return
+        key, val = match.groups()
+        self[image][key] = val.strip('"')
+
+    def get_var(self, var, image=None, cache=True):
+        """
+        Get bitbake variable from 'bitbake -e' output or from .env file.
+        This is a lazy method, i.e. it runs bitbake or parses file only when
+        only when variable is requested. It also caches results.
+        """
+        if not image:
+            image = self.default_image
+
+        if image not in self:
+            if image and self.vars_dir:
+                fname = os.path.join(self.vars_dir, image + '.env')
+                if os.path.isfile(fname):
+                    # parse .env file
+                    with open(fname) as varsfile:
+                        for line in varsfile:
+                            self._parse_line(line, image)
+                else:
+                    print("Couldn't get bitbake variable from %s." % fname)
+                    print("File %s doesn't exist." % fname)
+                    return
+            else:
+                # Get bitbake -e output
+                cmd = "bitbake -e"
+                if image:
+                    cmd += " %s" % image
+
+                log_level = logger.getEffectiveLevel()
+                logger.setLevel(logging.INFO)
+                ret, lines = _exec_cmd(cmd)
+                logger.setLevel(log_level)
+
+                if ret:
+                    logger.error("Couldn't get '%s' output.", cmd)
+                    logger.error("Bitbake failed with error:\n%s\n", lines)
+                    return
+
+                # Parse bitbake -e output
+                for line in lines.split('\n'):
+                    self._parse_line(line, image)
+
+            # Make first image a default set of variables
+            if cache:
+                images = [key for key in self if key]
+                if len(images) == 1:
+                    self[None] = self[image]
+
+        result = self[image].get(var)
+        if not cache:
+            self.pop(image, None)
+
+        return result
+
+# Create BB_VARS singleton
+BB_VARS = BitbakeVars()
+
+def get_bitbake_var(var, image=None, cache=True):
+    """
+    Provide old get_bitbake_var API by wrapping
+    get_var method of BB_VARS singleton.
+    """
+    return BB_VARS.get_var(var, image, cache)