/usr/bin/linaro-hwpack-append is in linaro-image-tools 2016.05-1.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 | #!/usr/bin/python
# Copyright (C) 2013 Linaro
#
# Author: Milo Casagrande <milo.casagrande@linaro.org>
#
# This file is part of Linaro Image Tools. It adds the feature
# to append a debian package into the given hwpack.
# We might need to change the manifest and Packages file in the
# future to match the hardware pack v2 changes when available.
#
# Linaro Image Tools is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Linaro Image Tools 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 Linaro Image Tools. If not, see <http://www.gnu.org/licenses/>.
#
import argparse
import atexit
import os
import sys
import tarfile
import tempfile
import shutil
from debian.arfile import ArError
from linaro_image_tools.hwpack.packages import (
get_packages_file,
FetchedPackage
)
from linaro_image_tools.utils import get_logger
from linaro_image_tools.__version__ import __version__
logger = None
def setup_args_parser():
"""Setup the argument parsing.
:return The parsed arguments.
"""
description = "Adds new packages inside a hardware pack."
parser = argparse.ArgumentParser(version=__version__,
description=description)
parser.add_argument("-d", "--debug", action="store_true")
parser.add_argument("-t", "--hwpack", required=True,
help="The hardware pack to modify")
parser.add_argument("-p", "--package", action="append", required=True,
help="The debian package to append. Can be repeated "
"multiple times.")
parser.add_argument("-i", "--inplace", action="store_true",
help="Add the packages in place, without creating a "
"new hardware pack.")
return parser.parse_args()
def validate_args(args):
"""Verify the arguments passed on the command line.
:param args: The arguments passed.
"""
hwpack_path = os.path.abspath(args.hwpack)
if not os.path.isfile(hwpack_path):
logger.error("Error: provided hardware pack file does not exists, or "
"is not a file: {0}.".format(args.hwpack))
sys.exit(1)
if not tarfile.is_tarfile(hwpack_path):
logger.error("Error: cannot read hardware pack file. Make sure it "
"is a supported tar archive.")
sys.exit(1)
for package in args.package:
if not os.path.isfile(os.path.abspath(package)):
logger.error("Error: provided package to add does not exists, or "
"is not a file: {0}.".format(package))
sys.exit(1)
def modify_manifest_file(debpackage_info, hwpack_dir):
"""Modify the manifest file to include a new package entry.
:param debpackage_info: The info to write.
:param hwpack_dir: Where the manifest file is located.
"""
debpack_manifest = os.path.join(hwpack_dir, "manifest")
new_debpack_line = '{0}={1}\n'.format(debpackage_info.name,
debpackage_info.version)
logger.debug("Manifest line: {0}".format(new_debpack_line))
with open(debpack_manifest, "a") as manifest:
manifest.write(new_debpack_line)
def modify_packages_file(debpack_info, pkgs_dir):
"""Modify the Packages file to include a new package entry.
:param debpack_info: The info to be written.
:param pkgs_dir: The directory with the Packages file.
"""
debpack_Packages_fname = os.path.join(pkgs_dir, "Packages")
package_info = get_packages_file([debpack_info]).strip()
logger.debug("Packages line:\n{0}".format(package_info))
with open(debpack_Packages_fname, "a") as packages_file:
packages_file.write("{0}\n\n".format(package_info))
def has_matching_package(pkg_to_search, dir_to_search):
"""Search for a matching file name in the provided directory.
:param pkg_to_search: The package whose name will be matched.
:param dir_to_search: Where to search for a matching name.
"""
logger.debug("Searching matching packages")
package_found = False
for pkg in os.listdir(dir_to_search):
if os.path.basename(pkg_to_search) == os.path.basename(pkg):
package_found = True
break
return package_found
def add_packages_to_hwpack(hwpack, packages_to_add, inplace):
"""Add the provided packages to the hardware pack.
Each package to add will be checked against the already available packages:
if a similar one is found (it just need to have the same name), it will be
skipped.
:param hwpack: The hardware pack where to add the new files.
:param packagess_to_add: List of package to add.
"""
hwpack = os.path.abspath(hwpack)
tempdir = tempfile.mkdtemp()
pkgs_dir = os.path.join(tempdir, 'pkgs')
# Cleanup once done.
atexit.register(shutil.rmtree, tempdir)
# Unfortunately we cannot operate in memory, Python tar library does not
# allow adding files with compressed tarballs. We have to extract it.
logger.info("Opening hardware pack {0}...".format(hwpack))
logger.debug("Extracting hardware pack in {0}".format(tempdir))
with tarfile.open(hwpack, "r|gz") as tar_file:
tar_file.extractall(tempdir)
if not os.path.isdir(pkgs_dir):
logger.error("Error: tar file does not include packages directory.")
sys.exit(1)
# Flag to check if we really need to save the new hwpack.
save_hwpack = False
for debpackage in packages_to_add:
debpackage_path = os.path.abspath(debpackage)
if has_matching_package(debpackage_path, pkgs_dir):
logger.warning("Found similar package in the tar archive: file "
"will not be added.")
continue
if os.path.isfile(debpackage_path):
logger.info("Adding file {0}...".format(debpackage))
try:
debpackage_info = FetchedPackage.from_deb(debpackage_path)
except ArError:
logger.warning("File {0} is invalid, skipping "
"it.".format(debpackage))
continue
if debpackage_info:
logger.debug("Package info data:\n{0}".format(debpackage_info))
modify_manifest_file(debpackage_info, tempdir)
modify_packages_file(debpackage_info, pkgs_dir)
shutil.copy2(debpackage_path, pkgs_dir)
save_hwpack |= True
else:
logger.warning("Unable to find valid info for package "
"{0}.".format(debpackage))
else:
logger.warning("File {0} does not exists, skipping "
"it.".format(debpackage))
if save_hwpack:
if inplace:
logger.info("Saving hardware pack {0}...".format(hwpack))
with tarfile.open(hwpack, "w|gz") as tar_file:
tar_file.add(tempdir, arcname="")
else:
save_dir = os.path.dirname(hwpack)
# Retrieve the file name without the extensions, and create a new
# file name.
root_ext, ext1 = os.path.splitext(os.path.basename(hwpack))
root, ext2 = os.path.splitext(root_ext)
root += "_new"
new_file_name = root + ext2 + ext1
save_file = os.path.join(save_dir, new_file_name)
logger.info("Saving new hardware pack {0}...".format(save_file))
with tarfile.open(save_file, "w|gz") as tar_file:
tar_file.add(tempdir, arcname="")
logger.info("New packages added successfully.")
else:
logger.info("No packages added. Exiting.")
def hwpack_append():
args = setup_args_parser()
global logger
logger = get_logger(debug=args.debug)
validate_args(args)
add_packages_to_hwpack(args.hwpack, args.package, args.inplace)
if __name__ == '__main__':
hwpack_append()
|