forked from Mirror/pmbootstrap
db5e69630e
* The APKINDEX parser used to return a dictionary with one package for a given package name. This works for the installed packages database, because there can only be one provider for a package. But when parsing packages from binary repositories, we need to support multiple providers for one package. It is now possible to get a dictionary with either multiple providers, or just a single provider for each package. * Dependency parsing logic has been adjusted, to support multiple providers. For multiple providers, the one with the same package name as the package we are looking up is prefered. If there is none (eg. "so:libEGL.so.1" is provided by "mesa-egl"), it prefers packages that will be installed anyway, and after that packages that are already installed. When all else fails, it just picks the first one and prints a note in the "pmbootstrap log". * Added testcases for all functions in pmb.parse.apkindex and pmb.parse.depends * pmbootstrap chroot has a new "--add" parameter to specify packages that pmbootstrap should build if neccessary, and install in the chroot. This can be used to quickly test the depencency resolution of pmbootstrap without doing a full "pmbootstrap install". Fixes #1122.
257 lines
9.6 KiB
Python
257 lines
9.6 KiB
Python
"""
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Copyright 2018 Oliver Smith
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This file is part of pmbootstrap.
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pmbootstrap 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 3 of the License, or
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(at your option) any later version.
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pmbootstrap 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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You should have received a copy of the GNU General Public License
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along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
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"""
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import os
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import logging
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import shlex
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import pmb.chroot
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import pmb.config
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import pmb.parse.apkindex
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import pmb.parse.arch
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import pmb.parse.depends
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import pmb.parse.version
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def update_repository_list(args, suffix="native", check=False):
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"""
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Update /etc/apk/repositories, if it is outdated (when the user changed the
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--mirror-alpine or --mirror-pmOS parameters).
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:param check: This function calls it self after updating the
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/etc/apk/repositories file, to check if it was successful.
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Only for this purpose, the "check" parameter should be set to
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True.
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"""
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# Skip if we already did this
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if suffix in args.cache["apk_repository_list_updated"]:
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return
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# Read old entries or create folder structure
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path = args.work + "/chroot_" + suffix + "/etc/apk/repositories"
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lines_old = []
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if os.path.exists(path):
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# Read all old lines
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lines_old = []
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with open(path) as handle:
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for line in handle:
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lines_old.append(line[:-1])
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else:
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pmb.helpers.run.root(args, ["mkdir", "-p", os.path.dirname(path)],
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suffix)
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# Up to date: Save cache, return
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lines_new = pmb.helpers.repo.urls(args)
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if lines_old == lines_new:
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args.cache["apk_repository_list_updated"].append(suffix)
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return
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# Check phase: raise error when still outdated
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if check:
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raise RuntimeError("Failed to update: " + path)
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# Update the file
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logging.debug("(" + suffix + ") update /etc/apk/repositories")
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if os.path.exists(path):
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pmb.helpers.run.root(args, ["rm", path])
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for line in lines_new:
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pmb.helpers.run.root(args, ["sh", "-c", "echo " +
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shlex.quote(line) + " >> " + path])
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update_repository_list(args, suffix, True)
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def check_min_version(args, suffix="native"):
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"""
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Check the minimum apk version, before running it the first time in the
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current session (lifetime of one pmbootstrap call).
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"""
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# Skip if we already did this
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if suffix in args.cache["apk_min_version_checked"]:
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return
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# Skip if apk is not installed yet
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if not os.path.exists(args.work + "/chroot_" + suffix + "/sbin/apk"):
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logging.debug("NOTE: Skipped apk version check for chroot '" + suffix +
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"', because it is not installed yet!")
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return
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# Compare
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version_installed = installed(args, suffix)["apk-tools"]["version"]
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version_min = pmb.config.apk_tools_static_min_version
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if pmb.parse.version.compare(version_installed, version_min) == -1:
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raise RuntimeError("You have an outdated version of the 'apk' package"
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" manager installed (your version: " + version_installed +
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", expected at least: " + version_min + "). Delete"
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" your http cache and zap all chroots, then try again:"
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" 'pmbootstrap zap -hc'")
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# Mark this suffix as checked
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args.cache["apk_min_version_checked"].append(suffix)
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def install_is_necessary(args, build, arch, package, packages_installed):
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"""
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This function optionally builds an out of date package, and checks if the
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version installed inside a chroot is up to date.
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:param build: Set to true to build the package, if the binary packages are
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out of date, and it is in the aports folder.
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:param packages_installed: Return value from installed().
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:returns: True if the package needs to be installed/updated, False otherwise.
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"""
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# Build package
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if build:
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pmb.build.package(args, package, arch)
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# No further checks when not installed
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if package not in packages_installed:
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return True
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# Make sure, that we really have a binary package
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data_repo = pmb.parse.apkindex.package(args, package, arch, False)
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if not data_repo:
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logging.warning("WARNING: Internal error in pmbootstrap," +
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" package '" + package + "' for " + arch +
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" has not been built yet, but it should have"
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" been. Rebuilding it with force. Please "
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" report this, if there is no ticket about this"
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" yet!")
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pmb.build.package(args, package, arch, True)
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return install_is_necessary(args, build, arch, package,
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packages_installed)
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# Compare the installed version vs. the version in the repos
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data_installed = packages_installed[package]
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compare = pmb.parse.version.compare(data_installed["version"],
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data_repo["version"])
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# a) Installed newer (should not happen normally)
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if compare == 1:
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logging.info("WARNING: " + arch + " package '" + package +
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"' installed version " + data_installed["version"] +
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" is newer, than the version in the repositories: " +
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data_repo["version"] +
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" See also: <https://postmarketos.org/warning-repo>")
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return False
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# b) Repo newer
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elif compare == -1:
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return True
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# c) Same version, look at last modified
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elif compare == 0:
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time_installed = float(data_installed["timestamp"])
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time_repo = float(data_repo["timestamp"])
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return time_repo > time_installed
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def replace_aports_packages_with_path(args, packages, suffix, arch):
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"""
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apk will only re-install packages with the same pkgname, pkgver and pkgrel,
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when you give it the absolute path to the package. This function replaces
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all packages, that were built locally, with the absolute path to the package.
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"""
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ret = []
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for package in packages:
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aport = pmb.build.find_aport(args, package, False)
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if aport:
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apkbuild = pmb.parse.apkbuild(args, aport + "/APKBUILD")
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apk_path = ("/home/pmos/packages/pmos/" + arch + "/" +
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package + "-" + apkbuild["pkgver"] + "-r" +
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apkbuild["pkgrel"] + ".apk")
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if os.path.exists(args.work + "/chroot_" + suffix + apk_path):
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package = apk_path
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ret.append(package)
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return ret
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def install(args, packages, suffix="native", build=True):
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"""
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:param build: automatically build the package, when it does not exist yet
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or needs to be updated, and it is inside the pm-aports
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folder. Checking this is expensive - if you know, that all
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packages are provides by upstream repos, set this to False!
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"""
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# Initialize chroot
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check_min_version(args, suffix)
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pmb.chroot.init(args, suffix)
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# Add depends to packages
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arch = pmb.parse.arch.from_chroot_suffix(args, suffix)
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packages_with_depends = pmb.parse.depends.recurse(args, packages, suffix)
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# Filter outdated packages (build them if required)
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packages_installed = installed(args, suffix)
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packages_todo = []
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for package in packages_with_depends:
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if install_is_necessary(
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args, build, arch, package, packages_installed):
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packages_todo.append(package)
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if not len(packages_todo):
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return
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# Sanitize packages: don't allow '--allow-untrusted' and other options
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# to be passed to apk!
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for package in packages_todo:
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if package.startswith("-"):
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raise ValueError("Invalid package name: " + package)
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# Readable install message without dependencies
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message = "(" + suffix + ") install"
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for pkgname in packages:
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if pkgname not in packages_installed:
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message += " " + pkgname
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logging.info(message)
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# Install/update everything
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packages_todo = replace_aports_packages_with_path(args, packages_todo,
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suffix, arch)
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pmb.chroot.root(args, ["apk", "--no-progress", "add", "-u"] + packages_todo,
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suffix)
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def upgrade(args, suffix="native"):
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"""
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Upgrade all packages installed in a chroot
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"""
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# Prepare apk and update index
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check_min_version(args, suffix)
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pmb.chroot.init(args, suffix)
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pmb.helpers.repo.update(args)
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# Rebuild and upgrade out-of-date packages
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packages = installed(args, suffix).keys()
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install(args, packages, suffix)
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def installed(args, suffix="native"):
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"""
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Read the list of installed packages (which has almost the same format, as
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an APKINDEX, but with more keys).
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:returns: a dictionary with the following structure:
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{ "postmarketos-mkinitfs":
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{
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"pkgname": "postmarketos-mkinitfs"
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"version": "0.0.4-r10",
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"depends": ["busybox-extras", "lddtree", ...],
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"provides": ["mkinitfs=0.0.1"]
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}, ...
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}
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"""
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path = args.work + "/chroot_" + suffix + "/lib/apk/db/installed"
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return pmb.parse.apkindex.parse(args, path, False)
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