13e6a68154
When the kickstart is handed off to Anaconda for building it will download its own copy of the metadata and re-run the depsolve. So if the dnf cache isn't current there will be a mismatch and the build will fail to find some of the versions in final-kickstart.ks This adds a new context to DNFLock, .lock_check, that will force a check of the metadata. It also implements its own timeout and forces a refresh of the metadata when that expires because the dnf expiration doesn't always work as expected. Resolves: rhbz#1631561
552 lines
17 KiB
Python
552 lines
17 KiB
Python
#
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# Copyright (C) 2017 Red Hat, Inc.
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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 as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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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
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import logging
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log = logging.getLogger("lorax-composer")
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import os
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from configparser import ConfigParser
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import dnf
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from glob import glob
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import time
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TIME_FORMAT = "%Y-%m-%dT%H:%M:%S"
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class ProjectsError(Exception):
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pass
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def api_time(t):
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"""Convert time since epoch to a string
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:param t: Seconds since epoch
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:type t: int
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:returns: Time string
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:rtype: str
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"""
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return time.strftime(TIME_FORMAT, time.localtime(t))
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def api_changelog(changelog):
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"""Convert the changelog to a string
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:param changelog: A list of time, author, string tuples.
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:type changelog: tuple
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:returns: The most recent changelog text or ""
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:rtype: str
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This returns only the most recent changelog entry.
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"""
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try:
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entry = changelog[0][2]
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except IndexError:
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entry = ""
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return entry
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def pkg_to_project(pkg):
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"""Extract the details from a hawkey.Package object
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:param pkgs: hawkey.Package object with package details
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:type pkgs: hawkey.Package
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:returns: A dict with the name, summary, description, and url.
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:rtype: dict
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upstream_vcs is hard-coded to UPSTREAM_VCS
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"""
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return {"name": pkg.name,
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"summary": pkg.summary,
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"description": pkg.description,
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"homepage": pkg.url,
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"upstream_vcs": "UPSTREAM_VCS"}
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def pkg_to_project_info(pkg):
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"""Extract the details from a hawkey.Package object
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:param pkg: hawkey.Package object with package details
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:type pkg: hawkey.Package
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:returns: A dict with the project details, as well as epoch, release, arch, build_time, changelog, ...
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:rtype: dict
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metadata entries are hard-coded to {}
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"""
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build = {"epoch": pkg.epoch,
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"release": pkg.release,
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"arch": pkg.arch,
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"build_time": api_time(pkg.buildtime),
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"changelog": "CHANGELOG_NEEDED", # XXX Not in hawkey.Package
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"build_config_ref": "BUILD_CONFIG_REF",
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"build_env_ref": "BUILD_ENV_REF",
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"metadata": {},
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"source": {"license": pkg.license,
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"version": pkg.version,
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"source_ref": "SOURCE_REF",
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"metadata": {}}}
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return {"name": pkg.name,
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"summary": pkg.summary,
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"description": pkg.description,
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"homepage": pkg.url,
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"upstream_vcs": "UPSTREAM_VCS",
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"builds": [build]}
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def pkg_to_dep(pkg):
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"""Extract the info from a hawkey.Package object
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:param pkg: A hawkey.Package object
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:type pkg: hawkey.Package
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:returns: A dict with name, epoch, version, release, arch
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:rtype: dict
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"""
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return {"name": pkg.name,
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"epoch": pkg.epoch,
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"version": pkg.version,
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"release": pkg.release,
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"arch": pkg.arch}
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def proj_to_module(proj):
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"""Extract the name from a project_info dict
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:param pkg: dict with package details
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:type pkg: dict
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:returns: A dict with name, and group_type
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:rtype: dict
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group_type is hard-coded to "rpm"
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"""
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return {"name": proj["name"],
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"group_type": "rpm"}
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def dep_evra(dep):
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"""Return the epoch:version-release.arch for the dep
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:param dep: dependency dict
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:type dep: dict
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:returns: epoch:version-release.arch
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:rtype: str
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"""
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if dep["epoch"] == 0:
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return dep["version"]+"-"+dep["release"]+"."+dep["arch"]
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else:
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return str(dep["epoch"])+":"+dep["version"]+"-"+dep["release"]+"."+dep["arch"]
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def dep_nevra(dep):
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"""Return the name-epoch:version-release.arch"""
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return dep["name"]+"-"+dep_evra(dep)
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def projects_list(dbo):
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"""Return a list of projects
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:returns: List of project info dicts with name, summary, description, homepage, upstream_vcs
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:rtype: list of dicts
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"""
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return projects_info(dbo, None)
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def projects_info(dbo, project_names):
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"""Return details about specific projects
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:param project_names: List of names of projects to get info about
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:type project_names: str
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:returns: List of project info dicts with pkg_to_project as well as epoch, version, release, etc.
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:rtype: list of dicts
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If project_names is None it will return the full list of available packages
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"""
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if project_names:
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pkgs = dbo.sack.query().available().filter(name__glob=project_names)
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else:
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pkgs = dbo.sack.query().available()
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return sorted(map(pkg_to_project_info, pkgs), key=lambda p: p["name"].lower())
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def _depsolve(dbo, projects, groups):
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"""Add projects to a new transaction
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:param projects: The projects and version globs to find the dependencies for
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:type projects: List of tuples
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:param groups: The groups to include in dependency solving
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:type groups: List of str
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:returns: None
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:rtype: None
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:raises: ProjectsError if there was a problem installing something
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"""
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# This resets the transaction and updates the cache.
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# It is important that the cache always be synchronized because Anaconda will grab its own copy
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# and if that is different the NEVRAs will not match and the build will fail.
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dbo.reset(goal=True)
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install_errors = []
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for name in groups:
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try:
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dbo.group_install(name, ["mandatory", "default"])
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except dnf.exceptions.MarkingError as e:
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install_errors.append(("Group %s" % (name), str(e)))
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for name, version in projects:
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try:
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if not version:
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version = "*"
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pkgs = [pkg for pkg in dnf.subject.Subject(name).get_best_query(dbo.sack).filter(version__glob=version, latest=True)]
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if not pkgs:
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install_errors.append(("%s-%s" % (name, version), "No match"))
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continue
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for p in pkgs:
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dbo.package_install(p)
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except dnf.exceptions.MarkingError as e:
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install_errors.append(("%s-%s" % (name, version), str(e)))
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if install_errors:
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raise ProjectsError("The following package(s) had problems: %s" % ",".join(["%s (%s)" % (pattern, err) for pattern, err in install_errors]))
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def projects_depsolve(dbo, projects, groups):
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"""Return the dependencies for a list of projects
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:param projects: The projects to find the dependencies for
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:type projects: List of Strings
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:param groups: The groups to include in dependency solving
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:type groups: List of str
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:returns: NEVRA's of the project and its dependencies
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:rtype: list of dicts
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:raises: ProjectsError if there was a problem installing something
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"""
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_depsolve(dbo, projects, groups)
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try:
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dbo.resolve()
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except dnf.exceptions.DepsolveError as e:
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raise ProjectsError("There was a problem depsolving %s: %s" % (projects, str(e)))
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if len(dbo.transaction) == 0:
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return []
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return sorted(map(pkg_to_dep, dbo.transaction.install_set), key=lambda p: p["name"].lower())
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def estimate_size(packages, block_size=6144):
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"""Estimate the installed size of a package list
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:param packages: The packages to be installed
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:type packages: list of hawkey.Package objects
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:param block_size: The block size to use for rounding up file sizes.
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:type block_size: int
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:returns: The estimated size of installed packages
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:rtype: int
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Estimating actual requirements is difficult without the actual file sizes, which
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dnf doesn't provide access to. So use the file count and block size to estimate
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a minimum size for each package.
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"""
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installed_size = 0
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for p in packages:
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installed_size += len(p.files) * block_size
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installed_size += p.installsize
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return installed_size
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def projects_depsolve_with_size(dbo, projects, groups, with_core=True):
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"""Return the dependencies and installed size for a list of projects
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:param project_names: The projects to find the dependencies for
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:type project_names: List of Strings
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:param groups: The groups to include in dependency solving
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:type groups: List of str
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:returns: installed size and a list of NEVRA's of the project and its dependencies
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:rtype: tuple of (int, list of dicts)
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:raises: ProjectsError if there was a problem installing something
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"""
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_depsolve(dbo, projects, groups)
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if with_core:
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dbo.group_install("core", ['mandatory', 'default', 'optional'])
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try:
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dbo.resolve()
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except dnf.exceptions.DepsolveError as e:
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raise ProjectsError("There was a problem depsolving %s: %s" % (projects, str(e)))
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if len(dbo.transaction) == 0:
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return (0, [])
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installed_size = estimate_size(dbo.transaction.install_set)
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deps = sorted(map(pkg_to_dep, dbo.transaction.install_set), key=lambda p: p["name"].lower())
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return (installed_size, deps)
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def modules_list(dbo, module_names):
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"""Return a list of modules
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:param offset: Number of modules to skip
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:type limit: int
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:param limit: Maximum number of modules to return
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:type limit: int
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:returns: List of module information and total count
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:rtype: tuple of a list of dicts and an Int
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Modules don't exist in RHEL7 so this only returns projects
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and sets the type to "rpm"
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"""
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# TODO - Figure out what to do with this for Fedora 'modules'
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projs = projects_info(dbo, module_names)
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return sorted(map(proj_to_module, projs), key=lambda p: p["name"].lower())
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def modules_info(dbo, module_names):
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"""Return details about a module, including dependencies
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:param dbo: dnf base object
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:type dbo: dnf.Base
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:param module_names: Names of the modules to get info about
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:type module_names: str
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:returns: List of dicts with module details and dependencies.
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:rtype: list of dicts
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"""
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modules = projects_info(dbo, module_names)
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# Add the dependency info to each one
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for module in modules:
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module["dependencies"] = projects_depsolve(dbo, [(module["name"], "*.*")], [])
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return modules
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def dnf_repo_to_file_repo(repo):
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"""Return a string representation of a DNF Repo object suitable for writing to a .repo file
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:param repo: DNF Repository
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:type repo: dnf.RepoDict
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:returns: A string
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:rtype: str
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The DNF Repo.dump() function does not produce a string that can be used as a dnf .repo file,
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it ouputs baseurl and gpgkey as python lists which DNF cannot read. So do this manually with
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only the attributes we care about.
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"""
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repo_str = "[%s]\n" % repo.id
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if repo.metalink:
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repo_str += "metalink = %s\n" % repo.metalink
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elif repo.mirrorlist:
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repo_str += "mirrorlist = %s\n" % repo.mirrorlist
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elif repo.baseurl:
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repo_str += "baseurl = %s\n" % repo.baseurl[0]
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else:
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raise RuntimeError("Repo has no baseurl, metalink, or mirrorlist")
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# proxy is optional
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if repo.proxy:
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repo_str += "proxy = %s\n" % repo.proxy
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repo_str += "sslverify = %s\n" % repo.sslverify
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repo_str += "gpgcheck = %s\n" % repo.gpgcheck
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if repo.gpgkey:
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repo_str += "gpgkey = %s\n" % ",".join(repo.gpgkey)
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return repo_str
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def repo_to_source(repo, system_source):
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"""Return a Weldr Source dict created from the DNF Repository
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:param repo: DNF Repository
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:type repo: dnf.RepoDict
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:param system_source: True if this source is an immutable system source
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:type system_source: bool
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:returns: A dict with Weldr Source fields filled in
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:rtype: dict
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Example::
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{
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"check_gpg": true,
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"check_ssl": true,
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"gpgkey_url": [
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"file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-28-x86_64"
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],
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"name": "fedora",
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"proxy": "http://proxy.brianlane.com:8123",
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"system": true
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"type": "yum-metalink",
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"url": "https://mirrors.fedoraproject.org/metalink?repo=fedora-28&arch=x86_64"
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}
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"""
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source = {"name": repo.id, "system": system_source}
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if repo.baseurl:
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source["url"] = repo.baseurl[0]
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source["type"] = "yum-baseurl"
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elif repo.metalink:
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source["url"] = repo.metalink
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source["type"] = "yum-metalink"
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elif repo.mirrorlist:
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source["url"] = repo.mirrorlist
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source["type"] = "yum-mirrorlist"
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else:
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raise RuntimeError("Repo has no baseurl, metalink, or mirrorlist")
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# proxy is optional
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if repo.proxy:
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source["proxy"] = repo.proxy
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if not repo.sslverify:
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source["check_ssl"] = False
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else:
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source["check_ssl"] = True
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if not repo.gpgcheck:
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source["check_gpg"] = False
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else:
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source["check_gpg"] = True
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if repo.gpgkey:
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source["gpgkey_urls"] = repo.gpgkey
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return source
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def source_to_repo(source, dnf_conf):
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"""Return a dnf Repo object created from a source dict
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:param source: A Weldr source dict
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:type source: dict
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:returns: A dnf Repo object
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:rtype: dnf.Repo
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Example::
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{
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"check_gpg": True,
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"check_ssl": True,
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"gpgkey_urls": [
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"file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-28-x86_64"
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],
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"name": "fedora",
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"proxy": "http://proxy.brianlane.com:8123",
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"system": True
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"type": "yum-metalink",
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"url": "https://mirrors.fedoraproject.org/metalink?repo=fedora-28&arch=x86_64"
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}
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"""
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repo = dnf.repo.Repo(source["name"], dnf_conf)
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# This will allow errors to be raised so we can catch them
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# without this they are logged, but the repo is silently disabled
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repo.skip_if_unavailable = False
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if source["type"] == "yum-baseurl":
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repo.baseurl = source["url"]
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elif source["type"] == "yum-metalink":
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repo.metalink = source["url"]
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elif source["type"] == "yum-mirrorlist":
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repo.mirrorlist = source["url"]
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if "proxy" in source:
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repo.proxy = source["proxy"]
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if source["check_ssl"]:
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repo.sslverify = True
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else:
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repo.sslverify = False
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if source["check_gpg"]:
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repo.gpgcheck = True
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else:
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repo.gpgcheck = False
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if "gpgkey_urls" in source:
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repo.gpgkey = ",".join(source["gpgkey_urls"])
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repo.enable()
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return repo
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def get_source_ids(source_path):
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"""Return a list of the source ids in a file
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:param source_path: Full path and filename of the source (yum repo) file
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:type source_path: str
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:returns: A list of source id strings
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:rtype: list of str
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"""
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if not os.path.exists(source_path):
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return []
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cfg = ConfigParser()
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cfg.read(source_path)
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return cfg.sections()
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def get_repo_sources(source_glob):
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"""Return a list of sources from a directory of yum repositories
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:param source_glob: A glob to use to match the source files, including full path
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:type source_glob: str
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:returns: A list of the source ids in all of the matching files
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:rtype: list of str
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"""
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sources = []
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for f in glob(source_glob):
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sources.extend(get_source_ids(f))
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return sources
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def delete_repo_source(source_glob, source_name):
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"""Delete a source from a repo file
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:param source_glob: A glob of the repo sources to search
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:type source_glob: str
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:returns: None
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:raises: ProjectsError if there was a problem
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A repo file may have multiple sources in it, delete only the selected source.
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If it is the last one in the file, delete the file.
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WARNING: This will delete ANY source, the caller needs to ensure that a system
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source_name isn't passed to it.
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"""
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found = False
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for f in glob(source_glob):
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try:
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cfg = ConfigParser()
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cfg.read(f)
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if source_name in cfg.sections():
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found = True
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cfg.remove_section(source_name)
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# If there are other sections, rewrite the file without the deleted one
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if len(cfg.sections()) > 0:
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with open(f, "w") as cfg_file:
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cfg.write(cfg_file)
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else:
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# No sections left, just delete the file
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os.unlink(f)
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except Exception as e:
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raise ProjectsError("Problem deleting repo source %s: %s" % (source_name, str(e)))
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if not found:
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raise ProjectsError("source %s not found" % source_name)
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