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Some targets like Contents-udeb are special-needs targets. Shipping the
configuration snippet for them is okay, but they shouldn't be downloaded
by default. Forcing the user to enable targets by uncommenting targets
is wrong and this would still not really solve the problem completely as
even if you want to download some -udebs it will probably not be for all
sources you have enabled, so having the possibility of disabling a
target by default, but giving the user the option to enable it on a
per-source entry basis is better.
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Some additional files like 'Contents' are very big and should therefore
kept compressed on the disk, which apt-file did in the past. It also
implemented pdiff patching of these files by un- and recompressing these
files on-the-fly, with this commit we can do the same – but we can do
this in both pdiff patching styles (client and server merging) and
secured by hashes.
Hashes are in so far slightly complicated as we can't compare the hashes
of the compressed files as we might compress them differently than the
server would (different compressor versions, options, …), so we must
compare the hashes of the uncompressed content.
While this commit has changes in public headers, the classes it changes
are marked as hidden, so nobody can use them directly, which means the
ABI break is internal only.
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This updates the documentation for a change which actually happened in
c2a4a8dded2dfb56dbcab9689b6cb4b96c9999b6 already. The acquire system
expects the $(SITE) to be there (e.g. for mirror rewriting) so we are
better of prefixing it automatically than giving frontends the chance to
forget it. There is no point in not showing $(SITE) first anyway.
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Disabling pdiffs can be useful occasionally, like if you have a fast
local mirror where the download doesn't matter, but still want to use it
for non-local mirrors. Also, some users might prefer it to only use it
for very big indextargets like Contents.
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While Target{,-Add,-Remove} is available for configuring IndexTargets
already, allow Targets to be mentioned explicitely as yes/no options as
well, so that the Target 'Contents' can be disabled via 'Contents: no'
as well as 'Target-Remove: Contents'.
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Reported-By: codespell
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Thanks: Julian Andres Klode
Git-Dch: ignore
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Git-Dch: ignore
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Thanks: Steve Slangasek for the suggestion
Closes: 695633
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Closes: #574939
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This should be enough for most persons.
Closes: #465551
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Closes: #691281
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Some people type them instead of autoremove and autoclean, so make
them happy.
Closes: #274159
Makes-Happy: Ansgar
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This was broken, as higher pins were also assigned to versions
that are installed.
Closes: #623706
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Closes: #618017
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Closes: #617445
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This enables more fine grained control over such exceptions.
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debian/experimental
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It's a tiny diff, so why not? But no need to document it.
Closes: #787846
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The old text did not match either the old or the new implementation,
so let's rewrite it to explain the new implementation.
Closes: #554773
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Treat invalid pin priorities and overflows as an error.
Closes: #429912
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Closes: 783343
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Support for that variable was removed in dpkg in 1.15.6, in commit
6f037003e8b96878b485efb7cbd1f846e3bf4e97.
Closes: #765366
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[Commiter: Patch adapted to apply to current version of the manpage and
added/moved a few words about Version 3 to make it fit better]
Closes: 627188
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RootDir doesn't only effect Dir-scope but all FindDir directories, so
document it accordingly.
Closes: 659387
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Closes: 612996
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Before MultiArch implicits weren't a thing, so they were hidden by
default by definition. Adding them for MultiArch solved many problems,
but having no reliable way of detecting which dependency (and provides)
is implicit or not causes problems everytime we want to output
dependencies without confusing our observers with unneeded
implementation details.
The really notworthy point here is actually that we keep now a better
record of how a dependency came to be so that we can later reason about
it more easily, but that is hidden so deep down in the library internals
that change is more the problems it solves than the change itself.
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'files' is a bit too generic as a name for a command usually only used
programmatically (if at all) by developers, so instead of "wasting" this
generic name for this we use "indextargets" which is actually the name
of the datastructure the displayed data is stored in.
Along with this rename the config options are renamed accordingly.
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Limits which key(s) can be used to sign a repository. Not immensely useful
from a security perspective all by itself, but if the user has
additional measures in place to confine a repository (like pinning) an
attacker who gets the key for such a repository is limited to its
potential and can't use the key to sign its attacks for an other (maybe
less limited) repository… (yes, this is as weak as it sounds, but having
the capability might come in handy for implementing other stuff later).
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These options could be set via configuration before, but the connection
to the actual sources is so strong that they should really be set in the
sources.list instead – especially as this can be done a lot more
specific rather than e.g. disabling Valid-Until for all sources at once.
Valid-Until-* names are chosen instead of the Min/Max-ValidTime as this
seems like a better name and their use in the wild is probably low
enough that this isn't going to confuse anyone if we have to names for
the same thing in different areas.
In the longrun, the config options should be removed, but for now
documentation hinting at the new options is good enough as these are the
kind of options you set once across many systems with different apt
versions, so the new way should work everywhere first before we
deprecate the old way.
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A specific trust state can be enforced via a sources.list option, but it
effects all entries handled by the same Release file, not just the entry
it was given on so we enforce acknowledgement of this by requiring the
same value to be (not) set on all such entries.
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Having two different formats in the same file is very dirty and causes
external tools to fail hard trying to parse them. It is probably not a
good idea for them to parse them in the first place, but they do and we
shouldn't break them if there is a better way.
So we solve this issue for now by giving our deb822 format a new
filename extension ".sources" which unsupporting applications are likely
to ignore an can begin gradually moving forward rather than waiting for
the unknown applications to catch up.
Currently and for the forseeable future apt is going to support both
with the same feature set as documented in the manpage, with the
longtime plan of adopting the 'new' format as default, but that is a
long way to go and might get going more from having an easier time
setting options than from us pushing it explicitely.
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We support arch= for a while, now we finally add lang= as well and as a
first simple way of controlling which targets to acquire also target=.
This asked for a redesign of the internal API of parsing and storing
information about 'deb' and 'deb-src' lines. As this API isn't visible
to the outside no damage done through.
Beside being a nice cleanup (= it actually does more in less lines) it
also provides us with a predictable order of architectures as provides
in the configuration rather than based on string sorting-order, so that
now the native architecture is parsed/displayed first. Observeable e.g.
in apt-get output.
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Provided is a specialized acquire item which given a version can figure
out the correct URI to try by itself and if not provides an error
message alongside with static methods to get just the URI it would try
to download if it should just be displayed or similar such.
The URI is constructed as follows:
Release files can provide an URI template in the "Changelogs" field,
otherwise we lookup a configuration item based on the "Label" or
"Origin" of the Release file to get a (hopefully known) default value
for now. This template should contain the string CHANGEPATH which is
replaced with the information about the version we want the changelog
for (e.g. main/a/apt/apt_1.1). This middleway was choosen as this path
part was consistent over the three known implementations (+1 defunct),
while the rest of the URI varies widely between them.
The benefit of this construct is that it is now easy to get changelogs
for Debian packages on Ubuntu and vice versa – even at the moment where
the Changelogs field is present nowhere. Strictly better than what
apt-get had before as it would even fail to get changelogs from
security… Now it will notice that security identifies as Origin: Debian
and pick this setting (assuming again that no Changelogs field exists).
If on the other hand security would ship its changelogs in a different
location we could set it via the Label option overruling Origin.
Closes: 687147, 739854, 784027, 787190
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Selecting targets based on the Release they belong to isn't to
unrealistic. In fact, it is assumed to be the most used case so it is
made the default especially as this allows to bundle another thing we
have to be careful with: Filenames and only showing targets we have
acquired.
Closes: 752702
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Downloading additional files is only half the job. We still need a way
to allow external tools to know where the files are they requested for
download given that we don't want them to choose their own location.
'apt-get files' is our answer to this showing by default in a deb822
format information about each IndexTarget with the potential to filter
the records based on lines and an option to change the output format.
The command serves also as an example on how to get to this information
via libapt.
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We still need an API for the targets, so slowly prepare the IndexTargets
to let them take this job.
Git-Dch: Ignore
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First pass at making the acquire system capable of downloading files
based on configuration rather than hardcoded entries. It is now possible
to instruct 'deb' and 'deb-src' sources.list lines to download more than
just Packages/Translation-* and Sources files. Details on how to do that
can be found in the included documentation file.
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Conflicts:
apt-pkg/acquire-item.cc
cmdline/apt-key.in
methods/https.cc
test/integration/test-apt-key
test/integration/test-multiarch-foreign
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Closes: 776702
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Implementing FileName() works for most cases for us, but other
frontends might need more and even for us its not very stable as
the normal Jump() implementation is pretty bad on a deb file and
produce errors on its own at times.
So, replacing this makeshift with a complete implementation by
mostly just shuffling code around.
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Closes: 771967
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