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e51697ef90
Avoid code duplication by making `extract` a shared method (and retrieving the package manager specific input via an abstract method). Additionally, follow Python conventions and prefix class internal methods with "_" to indicate that they shouldn't be called externally. (From OE-Core rev: c4b126e216dfe8251ec55074be78188fcc3fcea8) Signed-off-by: Philip Lorenz <philip.lorenz@bmw.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
98 lines
3.4 KiB
Python
98 lines
3.4 KiB
Python
#
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# Copyright OpenEmbedded Contributors
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#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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import glob
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import os
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import subprocess
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import tempfile
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import bb
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from oe.package_manager import opkg_query, PackageManager
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class OpkgDpkgPM(PackageManager):
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def __init__(self, d, target_rootfs):
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"""
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This is an abstract class. Do not instantiate this directly.
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"""
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super(OpkgDpkgPM, self).__init__(d, target_rootfs)
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def package_info(self, pkg):
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"""
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Returns a dictionary with the package info.
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"""
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raise NotImplementedError
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def _common_package_info(self, cmd):
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"""
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"Returns a dictionary with the package info.
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This method extracts the common parts for Opkg and Dpkg
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"""
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proc = subprocess.run(cmd, capture_output=True, encoding="utf-8", shell=True)
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if proc.returncode:
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bb.fatal("Unable to list available packages. Command '%s' "
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"returned %d:\n%s" % (cmd, proc.returncode, proc.stderr))
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elif proc.stderr:
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bb.note("Command '%s' returned stderr: %s" % (cmd, proc.stderr))
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return opkg_query(proc.stdout)
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def extract(self, pkg):
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"""
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Returns the path to a tmpdir where resides the contents of a package.
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Deleting the tmpdir is responsability of the caller.
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"""
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pkg_info = self.package_info(pkg)
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if not pkg_info:
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bb.fatal("Unable to get information for package '%s' while "
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"trying to extract the package." % pkg)
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ar_cmd = bb.utils.which(os.getenv("PATH"), "ar")
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tar_cmd = bb.utils.which(os.getenv("PATH"), "tar")
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pkg_path = pkg_info[pkg]["filepath"]
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if not os.path.isfile(pkg_path):
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bb.fatal("Unable to extract package for '%s'."
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"File %s doesn't exists" % (pkg, pkg_path))
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tmp_dir = tempfile.mkdtemp()
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current_dir = os.getcwd()
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os.chdir(tmp_dir)
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try:
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cmd = [ar_cmd, 'x', pkg_path]
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output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
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data_tar = glob.glob("data.tar.*")
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if len(data_tar) != 1:
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bb.fatal("Unable to extract %s package. Failed to identify "
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"data tarball (found tarballs '%s').",
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pkg_path, data_tar)
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data_tar = data_tar[0]
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cmd = [tar_cmd, 'xf', data_tar]
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output = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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bb.utils.remove(tmp_dir, recurse=True)
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bb.fatal("Unable to extract %s package. Command '%s' "
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"returned %d:\n%s" % (pkg_path, ' '.join(cmd), e.returncode, e.output.decode("utf-8")))
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except OSError as e:
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bb.utils.remove(tmp_dir, recurse=True)
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bb.fatal("Unable to extract %s package. Command '%s' "
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"returned %d:\n%s at %s" % (pkg_path, ' '.join(cmd), e.errno, e.strerror, e.filename))
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bb.note("Extracted %s to %s" % (pkg_path, tmp_dir))
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bb.utils.remove(os.path.join(tmp_dir, "debian-binary"))
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bb.utils.remove(os.path.join(tmp_dir, "control.tar.gz"))
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bb.utils.remove(os.path.join(tmp_dir, data_tar))
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os.chdir(current_dir)
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return tmp_dir
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def _handle_intercept_failure(self, registered_pkgs):
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self.mark_packages("unpacked", registered_pkgs.split())
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