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376 lines
14 KiB
376 lines
14 KiB
# -*- coding: utf-8 -*-
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# Refactored parts from britney.py, which is/was:
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# Copyright (C) 2001-2008 Anthony Towns <ajt@debian.org>
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# Andreas Barth <aba@debian.org>
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# Fabio Tranchitella <kobold@debian.org>
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# Copyright (C) 2010-2012 Adam D. Barratt <adsb@debian.org>
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# Copyright (C) 2012 Niels Thykier <niels@thykier.net>
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#
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# New portions
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# Copyright (C) 2013 Adam D. Barratt <adsb@debian.org>
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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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# 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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import apt_pkg
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from functools import partial
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from itertools import chain, ifilter, ifilterfalse, izip, repeat
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import re
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import time
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from migrationitem import MigrationItem, UnversionnedMigrationItem
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from consts import (VERSION, BINARIES, PROVIDES, DEPENDS, CONFLICTS,
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RDEPENDS, RCONFLICTS, ARCHITECTURE, SECTION)
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binnmu_re = re.compile(r'^(.*)\+b\d+$')
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def same_source(sv1, sv2, binnmu_re=binnmu_re):
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"""Check if two version numbers are built from the same source
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This method returns a boolean value which is true if the two
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version numbers specified as parameters are built from the same
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source. The main use of this code is to detect binary-NMU.
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binnmu_re is an optimization to avoid "load global".
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"""
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if sv1 == sv2:
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return 1
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m = binnmu_re.match(sv1)
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if m: sv1 = m.group(1)
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m = binnmu_re.match(sv2)
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if m: sv2 = m.group(1)
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if sv1 == sv2:
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return 1
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return 0
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def ifilter_except(container, iterable=None):
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"""Filter out elements in container
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If given an iterable it returns a filtered iterator, otherwise it
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returns a function to generate filtered iterators. The latter is
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useful if the same filter has to be (re-)used on multiple
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iterators that are not known on beforehand.
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"""
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if iterable is not None:
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return ifilterfalse(container.__contains__, iterable)
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return partial(ifilterfalse, container.__contains__)
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def ifilter_only(container, iterable=None):
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"""Filter out elements in which are not in container
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If given an iterable it returns a filtered iterator, otherwise it
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returns a function to generate filtered iterators. The latter is
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useful if the same filter has to be (re-)used on multiple
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iterators that are not known on beforehand.
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"""
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if iterable is not None:
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return ifilter(container.__contains__, iterable)
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return partial(ifilter, container.__contains__)
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def undo_changes(lundo, systems, sources, binaries,
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BINARIES=BINARIES, PROVIDES=PROVIDES):
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"""Undoes one or more changes to testing
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* lundo is a list of (undo, item)-tuples
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* systems is the britney-py.c system
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* sources is the table of all source packages for all suites
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* binaries is the table of all binary packages for all suites
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and architectures
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The "X=X" parameters are optimizations to avoid "load global"
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in loops.
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"""
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# We do the undo process in "4 steps" and each step must be
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# fully completed for each undo-item before starting on the
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# next.
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#
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# see commit:ef71f0e33a7c3d8ef223ec9ad5e9843777e68133 and
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# #624716 for the issues we had when we did not do this.
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# STEP 1
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# undo all the changes for sources
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for (undo, item) in lundo:
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for k in undo['sources']:
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if k[0] == '-':
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del sources["testing"][k[1:]]
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else:
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sources["testing"][k] = undo['sources'][k]
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# STEP 2
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# undo all new binaries (consequence of the above)
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for (undo, item) in lundo:
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if not item.is_removal and item.package in sources[item.suite]:
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for p in sources[item.suite][item.package][BINARIES]:
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binary, arch = p.split("/")
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if item.architecture in ['source', arch]:
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del binaries["testing"][arch][0][binary]
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systems[arch].remove_binary(binary)
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# STEP 3
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# undo all other binary package changes (except virtual packages)
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for (undo, item) in lundo:
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for p in undo['binaries']:
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binary, arch = p.split("/")
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if binary[0] == "-":
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del binaries['testing'][arch][0][binary[1:]]
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systems[arch].remove_binary(binary[1:])
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else:
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binaries_t_a = binaries['testing'][arch][0]
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binaries_t_a[binary] = undo['binaries'][p]
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systems[arch].remove_binary(binary)
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systems[arch].add_binary(binary, binaries_t_a[binary][:PROVIDES] + \
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[", ".join(binaries_t_a[binary][PROVIDES]) or None])
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# STEP 4
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# undo all changes to virtual packages
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for (undo, item) in lundo:
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for p in undo['nvirtual']:
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j, arch = p.split("/")
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del binaries['testing'][arch][1][j]
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for p in undo['virtual']:
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j, arch = p.split("/")
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if j[0] == '-':
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del binaries['testing'][arch][1][j[1:]]
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else:
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binaries['testing'][arch][1][j] = undo['virtual'][p]
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def old_libraries_format(libs):
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"""Format old libraries in a smart table"""
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libraries = {}
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for i in libs:
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pkg = i.package
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if pkg in libraries:
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libraries[pkg].append(i.architecture)
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else:
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libraries[pkg] = [i.architecture]
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return "\n".join(" " + k + ": " + " ".join(libraries[k]) for k in libraries) + "\n"
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def register_reverses(packages, provides, check_doubles=True, iterator=None,
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parse_depends=apt_pkg.parse_depends,
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DEPENDS=DEPENDS, CONFLICTS=CONFLICTS,
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RDEPENDS=RDEPENDS, RCONFLICTS=RCONFLICTS):
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"""Register reverse dependencies and conflicts for a given
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sequence of packages
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This method registers the reverse dependencies and conflicts for a
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given sequence of packages. "packages" is a table of real
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packages and "provides" is a table of virtual packages.
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iterator is the sequence of packages for which the reverse
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relations should be updated.
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The "X=X" parameters are optimizations to avoid "load global" in
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the loops.
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"""
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if iterator is None:
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iterator = packages.iterkeys()
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else:
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iterator = ifilter_only(packages, iterator)
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for pkg in iterator:
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# register the list of the dependencies for the depending packages
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dependencies = []
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pkg_data = packages[pkg]
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if pkg_data[DEPENDS]:
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dependencies.extend(parse_depends(pkg_data[DEPENDS], False))
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# go through the list
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for p in dependencies:
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for a in p:
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dep = a[0]
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# register real packages
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if dep in packages and (not check_doubles or pkg not in packages[dep][RDEPENDS]):
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packages[dep][RDEPENDS].append(pkg)
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# also register packages which provide the package (if any)
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if dep in provides:
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for i in provides[dep]:
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if i not in packages: continue
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if not check_doubles or pkg not in packages[i][RDEPENDS]:
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packages[i][RDEPENDS].append(pkg)
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# register the list of the conflicts for the conflicting packages
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if pkg_data[CONFLICTS]:
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for p in parse_depends(pkg_data[CONFLICTS], False):
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for a in p:
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con = a[0]
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# register real packages
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if con in packages and (not check_doubles or pkg not in packages[con][RCONFLICTS]):
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packages[con][RCONFLICTS].append(pkg)
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# also register packages which provide the package (if any)
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if con in provides:
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for i in provides[con]:
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if i not in packages: continue
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if not check_doubles or pkg not in packages[i][RCONFLICTS]:
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packages[i][RCONFLICTS].append(pkg)
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def compute_reverse_tree(packages_s, pkg, arch,
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set=set, flatten=chain.from_iterable,
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RDEPENDS=RDEPENDS):
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"""Calculate the full dependency tree for the given package
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This method returns the full dependency tree for the package
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"pkg", inside the "arch" architecture for a given suite flattened
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as an iterable. The first argument "packages_s" is the binary
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package table for that given suite (e.g. Britney().binaries["testing"]).
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The tree (or graph) is returned as an iterable of (package, arch)
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tuples and the iterable will contain ("pkg", "arch") if it is
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available on that architecture.
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If "pkg" is not available on that architecture in that suite,
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this returns an empty iterable.
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The method does not promise any ordering of the returned
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elements and the iterable is not reusable.
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The flatten=... and the "X=X" parameters are optimizations to
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avoid "load global" in the loops.
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"""
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binaries = packages_s[arch][0]
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if pkg not in binaries:
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return frozenset()
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rev_deps = set(binaries[pkg][RDEPENDS])
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seen = set([pkg])
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binfilt = ifilter_only(binaries)
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revfilt = ifilter_except(seen)
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while rev_deps:
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# mark all of the current iteration of packages as affected
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seen |= rev_deps
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# generate the next iteration, which is the reverse-dependencies of
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# the current iteration
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rev_deps = set(revfilt(flatten( binaries[x][RDEPENDS] for x in binfilt(rev_deps) )))
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return izip(seen, repeat(arch))
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def write_nuninst(filename, nuninst):
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"""Write the non-installable report
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Write the non-installable report derived from "nuninst" to the
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file denoted by "filename".
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"""
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with open(filename, 'w') as f:
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# Having two fields with (almost) identical dates seems a bit
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# redundant.
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f.write("Built on: " + time.strftime("%Y.%m.%d %H:%M:%S %z", time.gmtime(time.time())) + "\n")
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f.write("Last update: " + time.strftime("%Y.%m.%d %H:%M:%S %z", time.gmtime(time.time())) + "\n\n")
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for k in nuninst:
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f.write("%s: %s\n" % (k, " ".join(nuninst[k])))
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def read_nuninst(filename, architectures):
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"""Read the non-installable report
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Read the non-installable report from the file denoted by
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"filename" and return it. Only architectures in "architectures"
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will be included in the report.
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"""
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nuninst = {}
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with open(filename) as f:
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for r in f:
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if ":" not in r: continue
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arch, packages = r.strip().split(":", 1)
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if arch.split("+", 1)[0] in architectures:
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nuninst[arch] = set(packages.split())
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return nuninst
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def newly_uninst(nuold, nunew):
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"""Return a nuninst statstic with only new uninstallable packages
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This method subtracts the uninstallable packages of the statistic
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"nunew" from the statistic "nuold".
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It returns a dictionary with the architectures as keys and the list
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of uninstallable packages as values.
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"""
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res = {}
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for arch in ifilter_only(nunew, nuold):
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res[arch] = [x for x in nunew[arch] if x not in nuold[arch]]
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return res
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def eval_uninst(architectures, nuninst):
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"""Return a string which represents the uninstallable packages
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This method returns a string which represents the uninstallable
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packages reading the uninstallability statistics "nuninst".
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An example of the output string is:
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* i386: broken-pkg1, broken-pkg2
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"""
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parts = []
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for arch in architectures:
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if arch in nuninst and nuninst[arch]:
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parts.append(" * %s: %s\n" % (arch,", ".join(sorted(nuninst[arch]))))
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return "".join(parts)
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def write_heidi(filename, sources_t, packages_t,
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VERSION=VERSION, SECTION=SECTION,
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ARCHITECTURE=ARCHITECTURE, sorted=sorted):
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"""Write the output HeidiResult
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This method write the output for Heidi, which contains all the
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binary packages and the source packages in the form:
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<pkg-name> <pkg-version> <pkg-architecture> <pkg-section>
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<src-name> <src-version> source <src-section>
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The file is written as "filename", it assumes all sources and
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packages in "sources_t" and "packages_t" to be the packages in
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"testing".
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The "X=X" parameters are optimizations to avoid "load global" in
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the loops.
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"""
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with open(filename, 'w') as f:
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# write binary packages
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for arch in sorted(packages_t):
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binaries = packages_t[arch][0]
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for pkg_name in sorted(binaries):
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pkg = binaries[pkg_name]
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pkgv = pkg[VERSION]
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pkgarch = pkg[ARCHITECTURE] or 'all'
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pkgsec = pkg[SECTION] or 'faux'
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f.write('%s %s %s %s\n' % (pkg_name, pkgv, pkgarch, pkgsec))
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# write sources
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for src_name in sorted(sources_t):
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src = sources_t[src_name]
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srcv = src[VERSION]
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srcsec = src[SECTION] or 'unknown'
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f.write('%s %s source %s\n' % (src_name, srcv, srcsec))
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def make_migrationitem(package, sources, VERSION=VERSION):
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"""Convert a textual package specification to a MigrationItem
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sources is a list of source packages in each suite, used to determine
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the version which should be used for the MigrationItem.
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"""
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item = UnversionnedMigrationItem(package)
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return MigrationItem("%s/%s" % (item.uvname, sources[item.suite][item.package][VERSION]))
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