226 lines
7.4 KiB
Python
226 lines
7.4 KiB
Python
# 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 implements the image creation engine used by 'wic' to
|
|
# create images. The engine parses through the OpenEmbedded kickstart
|
|
# (wks) file specified and generates images that can then be directly
|
|
# written onto media.
|
|
#
|
|
# AUTHORS
|
|
# Tom Zanussi <tom.zanussi (at] linux.intel.com>
|
|
#
|
|
|
|
import os
|
|
import sys
|
|
|
|
from wic import msger, creator
|
|
from wic.utils import misc
|
|
from wic.plugin import pluginmgr
|
|
from wic.utils.oe import misc
|
|
|
|
|
|
def verify_build_env():
|
|
"""
|
|
Verify that the build environment is sane.
|
|
|
|
Returns True if it is, false otherwise
|
|
"""
|
|
if not os.environ.get("BUILDDIR"):
|
|
print("BUILDDIR not found, exiting. (Did you forget to source oe-init-build-env?)")
|
|
sys.exit(1)
|
|
|
|
return True
|
|
|
|
|
|
CANNED_IMAGE_DIR = "lib/wic/canned-wks" # relative to scripts
|
|
SCRIPTS_CANNED_IMAGE_DIR = "scripts/" + CANNED_IMAGE_DIR
|
|
|
|
def build_canned_image_list(path):
|
|
layers_path = misc.get_bitbake_var("BBLAYERS")
|
|
canned_wks_layer_dirs = []
|
|
|
|
if layers_path is not None:
|
|
for layer_path in layers_path.split():
|
|
cpath = os.path.join(layer_path, SCRIPTS_CANNED_IMAGE_DIR)
|
|
canned_wks_layer_dirs.append(cpath)
|
|
|
|
cpath = os.path.join(path, CANNED_IMAGE_DIR)
|
|
canned_wks_layer_dirs.append(cpath)
|
|
|
|
return canned_wks_layer_dirs
|
|
|
|
def find_canned_image(scripts_path, wks_file):
|
|
"""
|
|
Find a .wks file with the given name in the canned files dir.
|
|
|
|
Return False if not found
|
|
"""
|
|
layers_canned_wks_dir = build_canned_image_list(scripts_path)
|
|
|
|
for canned_wks_dir in layers_canned_wks_dir:
|
|
for root, dirs, files in os.walk(canned_wks_dir):
|
|
for fname in files:
|
|
if fname.endswith("~") or fname.endswith("#"):
|
|
continue
|
|
if fname.endswith(".wks") and wks_file + ".wks" == fname:
|
|
fullpath = os.path.join(canned_wks_dir, fname)
|
|
return fullpath
|
|
return None
|
|
|
|
|
|
def list_canned_images(scripts_path):
|
|
"""
|
|
List the .wks files in the canned image dir, minus the extension.
|
|
"""
|
|
layers_canned_wks_dir = build_canned_image_list(scripts_path)
|
|
|
|
for canned_wks_dir in layers_canned_wks_dir:
|
|
for root, dirs, files in os.walk(canned_wks_dir):
|
|
for fname in files:
|
|
if fname.endswith("~") or fname.endswith("#"):
|
|
continue
|
|
if fname.endswith(".wks"):
|
|
fullpath = os.path.join(canned_wks_dir, fname)
|
|
with open(fullpath) as wks:
|
|
for line in wks:
|
|
desc = ""
|
|
idx = line.find("short-description:")
|
|
if idx != -1:
|
|
desc = line[idx + len("short-description:"):].strip()
|
|
break
|
|
basename = os.path.splitext(fname)[0]
|
|
print(" %s\t\t%s" % (basename.ljust(30), desc))
|
|
|
|
|
|
def list_canned_image_help(scripts_path, fullpath):
|
|
"""
|
|
List the help and params in the specified canned image.
|
|
"""
|
|
found = False
|
|
with open(fullpath) as wks:
|
|
for line in wks:
|
|
if not found:
|
|
idx = line.find("long-description:")
|
|
if idx != -1:
|
|
print()
|
|
print(line[idx + len("long-description:"):].strip())
|
|
found = True
|
|
continue
|
|
if not line.strip():
|
|
break
|
|
idx = line.find("#")
|
|
if idx != -1:
|
|
print(line[idx + len("#:"):].rstrip())
|
|
else:
|
|
break
|
|
|
|
|
|
def list_source_plugins():
|
|
"""
|
|
List the available source plugins i.e. plugins available for --source.
|
|
"""
|
|
plugins = pluginmgr.get_source_plugins()
|
|
|
|
for plugin in plugins:
|
|
print(" %s" % plugin)
|
|
|
|
|
|
def wic_create(wks_file, rootfs_dir, bootimg_dir, kernel_dir,
|
|
native_sysroot, scripts_path, image_output_dir,
|
|
compressor, bmap, debug):
|
|
"""Create image
|
|
|
|
wks_file - user-defined OE kickstart file
|
|
rootfs_dir - absolute path to the build's /rootfs dir
|
|
bootimg_dir - absolute path to the build's boot artifacts directory
|
|
kernel_dir - absolute path to the build's kernel directory
|
|
native_sysroot - absolute path to the build's native sysroots dir
|
|
scripts_path - absolute path to /scripts dir
|
|
image_output_dir - dirname to create for image
|
|
compressor - compressor utility to compress the image
|
|
bmap - enable generation of .bmap
|
|
|
|
Normally, the values for the build artifacts values are determined
|
|
by 'wic -e' from the output of the 'bitbake -e' command given an
|
|
image name e.g. 'core-image-minimal' and a given machine set in
|
|
local.conf. If that's the case, the variables get the following
|
|
values from the output of 'bitbake -e':
|
|
|
|
rootfs_dir: IMAGE_ROOTFS
|
|
kernel_dir: DEPLOY_DIR_IMAGE
|
|
native_sysroot: STAGING_DIR_NATIVE
|
|
|
|
In the above case, bootimg_dir remains unset and the
|
|
plugin-specific image creation code is responsible for finding the
|
|
bootimg artifacts.
|
|
|
|
In the case where the values are passed in explicitly i.e 'wic -e'
|
|
is not used but rather the individual 'wic' options are used to
|
|
explicitly specify these values.
|
|
"""
|
|
try:
|
|
oe_builddir = os.environ["BUILDDIR"]
|
|
except KeyError:
|
|
print("BUILDDIR not found, exiting. (Did you forget to source oe-init-build-env?)")
|
|
sys.exit(1)
|
|
|
|
if debug:
|
|
msger.set_loglevel('debug')
|
|
|
|
crobj = creator.Creator()
|
|
|
|
cmdline = ["direct", native_sysroot, kernel_dir, bootimg_dir, rootfs_dir,
|
|
wks_file, image_output_dir, oe_builddir, compressor or ""]
|
|
if bmap:
|
|
cmdline.append('--bmap')
|
|
|
|
crobj.main(cmdline)
|
|
|
|
print("\nThe image(s) were created using OE kickstart file:\n %s" % wks_file)
|
|
|
|
|
|
def wic_list(args, scripts_path):
|
|
"""
|
|
Print the list of images or source plugins.
|
|
"""
|
|
if len(args) < 1:
|
|
return False
|
|
|
|
if args == ["images"]:
|
|
list_canned_images(scripts_path)
|
|
return True
|
|
elif args == ["source-plugins"]:
|
|
list_source_plugins()
|
|
return True
|
|
elif len(args) == 2 and args[1] == "help":
|
|
wks_file = args[0]
|
|
fullpath = find_canned_image(scripts_path, wks_file)
|
|
if not fullpath:
|
|
print("No image named %s found, exiting. "\
|
|
"(Use 'wic list images' to list available images, or "\
|
|
"specify a fully-qualified OE kickstart (.wks) "\
|
|
"filename)\n" % wks_file)
|
|
sys.exit(1)
|
|
list_canned_image_help(scripts_path, fullpath)
|
|
return True
|
|
|
|
return False
|