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This was broken previously, as we'd choose a downgrade when it's
pin was higher than the previously selected candidate.
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The new implementation assigns each version a pin, instead of assigning
the pin to a package. This enables us to give each version of a package
a different priority.
Closes: #770017
Closes: #622237
Closes: #620249
Closes: #685215
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This makes sure that we display a useful value instead of 0 for
versions that are pinned due to package files.
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Per-version pins should lead to more predictable results with
/etc/apt/preferences uses like pinning one version with -1.
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To have a chance to keep the ABI for a while we need all three to team
up. One of them missing and we might loose, so ensuring that they are
available is a very tedious but needed task once in a while.
Git-Dch: Ignore
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We used to read the Release file for each Packages file and store the
data in the PackageFile struct even through potentially many Packages
(and Translation-*) files could use the same data. The point of the
exercise isn't the duplicated data through. Having the Release files as
first-class citizens in the Cache allows us to properly track their
state as well as allows us to use the information also for files which
aren't in the cache, but where we know to which Release file they
belong (Sources are an example for this).
This modifies the pkgCache structs, especially the PackagesFile struct
which depending on how libapt users access the data in these structs can
mean huge breakage or no visible change. As a single data point:
aptitude seems to be fine with this. Even if there is breakage it is
trivial to fix in a backportable way while avoiding breakage for
everyone would be a huge pain for us.
Note that not all PackageFile structs have a corresponding ReleaseFile.
In particular the dpkg/status file as well as *.deb files have not. As
these have only a Archive property need, the Component property takes
over this duty and the ReleaseFile remains zero. This is also the reason
why it isn't needed nor particularily recommended to change from
PackagesFile to ReleaseFile blindly. Sticking with the earlier is
usually the better option.
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If the pin for a generic pin is 0, it get a value by strange looking
rules, if the pin is specific the rules are at least not strange, but
the value 989 is a magic number without any direct meaning… but both
never happens in practice as the parsing skips such entries with a
warning, so there always is a priority != 0 and the code therefore never
used.
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The documentation says this, but the code only agreed while evaluating
specific packages, but not generics. These needed a pin above 1000 to
have the same effect.
The code causing this makes references to a 'second pesduo status file',
but nowhere is explained what this might stand for and/or what it was,
so we do the only reasonable thing: Remove all references and do as
documented.
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Git-Dch: Ignore
Reported-By: gcc -Wsuggest-attribute={pure,const,noreturn}
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Beside being a bit cleaner it hopefully also resolves oddball problems
I have with high levels of parallel jobs.
Git-Dch: Ignore
Reported-By: iwyu (include-what-you-use)
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Reported-By: gcc -Wunused-parameter
Git-Dch: Ignore
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We start your quest by using the version of a package applying to a
specific pin, but that version could very well be below the current
version, which causes APT to suggest a downgrade even if it is
advertised that it never does this below 1000.
Its of course questionable what use a specific pin on a package has
which has a newer version already installed, but reacting with the
suggestion of a downgrade is really not appropriated (even if its kinda
likely that this is actually the intend the user has – it could just as
well be an outdated pin) and as pinning is complicated enough we should
atleast do what is described in the manpage.
So we look out for the specific pin and if we haven't seen it at the
moment we see the installed version, we ignore the specific pin.
Closes: 543966
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- match pins with(out) an architecture as we do on the commandline
(partly fixing #687255, b= support has to wait for jessie)
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- accept generic release pin expressions again in -t (Closes: #644166)
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done on the mirco-optimazation level, so lets fix them:
(performance) Possible inefficient checking for emptiness.
(performance) Prefer prefix ++/-- operators for non-primitive types.
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* apt-pkg/contrib/sha1.cc:
- fix illegally casts of on-stack buffer to a type requiring more
alignment than it has resulting in segfaults on sparc (Closes: #634696)
* apt-pkg/contrib/cdromutl.cc:
- fix escape problem when looking for the mounted devices
* apt-pkg/contrib/strutl.{h,cc}, test/libapt/strutil_test.cc:
- add new DeEscapeString() similar to DeQuoteString but
unescape character escapes like \0XX and \xXX (plus added
test)
* refresh po/*
* cmdline/apt-get.cc:
- fix missing download progress in apt-get download
- do not require unused partial dirs in 'source' (Closes: #633510)
- buildconflicts effect all architectures
- implement MultiarchCross for build-dep and source (Closes: #632221)
* cmdline/apt-key:
- use a tmpfile instead of /etc/apt/secring.gpg (Closes: #632596)
* debian/apt.postinst:
- remove /etc/apt/secring.gpg if it is an empty file
* doc/apt-cache.8.xml:
- apply madison typofix from John Feuerstein, thanks! (Closes: #633455)
* apt-pkg/policy.cc:
- emit an error on unknown APT::Default-Release value (Closes: #407511)
* apt-pkg/aptconfiguration.cc:
- ensure that native architecture is if not specified otherwise the
first architecture in the Architectures vector
* apt-pkg/deb/deblistparser.cc:
- Strip only :any and :native if MultiArch should be stripped as it is
save to ignore them in non-MultiArch contexts but if the dependency
is a specific architecture (and not the native) do not strip
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- emit an error on unknown APT::Default-Release value (Closes: #407511)
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- create doxygen directory to avoid depending on magic (Closes: #628799)
* cmdline/apt-key:
- explicitly state that net-update is not supported if no url is set
- require to be root for add, rm, update and net-update
- clarify update vs. net-update in different distros (Closes: #632043)
* debian/apt.symbols:
- forgot 'mips' in the list for all architecture dependent symbols
- comment out gcc-4.5 specific symbols as gcc-4.6 is now default
- the symbol for PrintStatus() is architecture dependent
* apt-pkg/policy.cc:
- do not segfault in pinning if a package with this name doesn't exist.
Thanks to Ferdinand Thommes for the report!
- Defaults is a vector of Pin not of PkgPin
- ensure that only the first specific stanza for a package is used
- save all stanzas which had no effect in Unmatched
- allow package:architecure in Package:
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use the internal resolver can now be used also with external
ones as the usage is hidden in between the old API
* provide two edsp solvers in apt-utils:
- 'dump' to quickly output a complete scenario and
- 'apt' to use the internal as an external resolver
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- Allow pinning by glob() expressions, and regular expressions
surrounded by slashes (the "/" character).
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based on a very early draft for EDSP by Stefano
APT can now write a scenario as well as load most stuff from it.
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Multi-Arch; instead, Arch: all packages only satisfy dependencies for
the native arch, except where the Arch: all package is declared
Multi-Arch: foreign. (Closes: #613584)
This has the sideeffect that arch:all packages internally show up as
coming from the native arch - so packages with the architecture "all"
doesn't exist any longer in the pkgcache
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- do not segfault if cache is not build (Closes: #254770)
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- add a RealFileExists method and check that your configuration files
are real files to avoid endless loops if not (Closes: #604401)
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- support 100-pinning in Release file with ButAutomaticUpgrades
as requested by the backports crew (Closes: #596097)
* apt-pkg/deb/deblistparser.cc:
- overrule NotAutomatic in case of ButAutomaticUpgrades
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- get the candidate right for a not-installed pseudo package if
his non-pseudo friend is installed
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directory (and to have a better method name in the error message if not)
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- Always return a candidate if there is at least one version pinned > 0
(Closes: #512318)
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- Fix the newly introduced method GetListOfFilesInDir to not
accept every file if no extension is enforced
(= restore old behaviour). (Closes: #565213)
* apt-pkg/policy.cc:
- accept also partfiles with "pref" file extension as valid
* apt-pkg/contrib/configuration.cc:
- accept also partfiles with "conf" file extension as valid
* doc/apt.conf.5.xml:
- reorder description and split out syntax
- add partfile name convention (Closes: #558348)
* doc/apt_preferences.conf.5.xml:
- describe partfile name convention also here
* apt-pkg/deb/dpkgpm.cc:
- don't segfault if term.log file can't be opened.
Thanks Sam Brightman for the patch! (Closes: #475770)
* doc/*:
- replace the per language addendum with a global addendum
- add a explanation why translations include (maybe) english
parts to the new global addendum (Closes: #561636)
* apt-pkg/contrib/strutl.cc:
- fix malloc asseration fail with ja_JP.eucJP locale in
apt-cache search. Thanks Kusanagi Kouichi! (Closes: #548884)
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file if no extension is enforced (= restore old behaviour). (Closes: #565213)
This commit includes also:
* apt-pkg/policy.cc:
- accept also partfiles with "pref" file extension as valid
* apt-pkg/contrib/configuration.cc:
- accept also partfiles with "conf" file extension as valid
* doc/apt.conf.5.xml:
- reorder description and split out syntax
- add partfile name convention (Closes: #558348)
* doc/apt_preferences.conf.5.xml:
- describe partfile name convention also here
And a lovely test application of course.
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* spot & fix various typos in all manpages
* German manpage translation update
* cmdline/apt-cache.cc:
- remove translatable marker from the "%4i %s\n" string
* buildlib/po4a_manpage.mak:
- instruct debiandoc to build files with utf-8 encoding
* buildlib/tools.m4:
- fix some warning from the buildtools
* apt-pkg/acquire-item.cc:
- add configuration PDiffs::Limit-options to not download
too many or too big patches (Closes: #554349)
* debian/control:
- let all packages depend on ${misc:Depends}
* share/*-archive.gpg:
- remove the horrible outdated files. We already depend on
the keyring so we don't need to ship our own version
* cmdline/apt-key:
- errors out if wget is not installed (Closes: #545754)
- add --keyring option as we have now possibly many
* methods/gpgv.cc:
- pass all keyrings (TrustedParts) to gpgv instead of
using only one trusted.gpg keyring (Closes: #304846)
* methods/https.cc:
- finally merge the rest of the patchset from Arnaud Ebalard
with the CRL and Issuers options, thanks! (Closes: #485963)
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code copies used to load the various parts-files
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Parts dirs are /etc/apt/{sources.list,apt.conf,preferences}.d
(in the default setup)
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(closes: #189866)
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