200 lines
7.4 KiB
Python
200 lines
7.4 KiB
Python
"""
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Copyright 2017 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 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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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.apkindex.compare_version(
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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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# Compare the installed version vs. the version in the repos
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data_installed = packages_installed[package]
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data_repo = pmb.parse.apkindex.read_any_index(args, package, arch)
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compare = pmb.parse.apkindex.compare_version(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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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/user/packages/user/" + 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, arch,
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strict=True)
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# Filter out up-to-date packages
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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", update_index=True):
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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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if update_index:
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pmb.chroot.root(args, ["apk", "update"], suffix)
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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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if not os.path.exists(path):
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return {}
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return pmb.parse.apkindex.parse(args, path)
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