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-q is for logging and -qqq (old -qq) basically kills every output expect
errors, so there should be a way of declaring a middleground in which
the output of e.g. 'update' isn't as verbose, but still shows some
things. The test framework was actually making use of by accident as it
ignored the quiet level in output setup for apt before.
Eventually we should figure out some better quiet levels for all tools…
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All mains pretty much do the same thing, so lets try a little harder to
move the common parts into -private to have the real differences more
visible.
Git-Dch: Ignore
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That is one huge commit with busy work only: Help messages used to be
one big translateable string, which is a pain for translators and hard
to reuse for us. This change there 'explodes' this single string into
new string for each documented string trying hard to split up the
translated messages as well. This actually restores many translations as
previously adding a single command made all of the bug message fuzzy.
The splitup also highlighted that its easy to forget a line, duplicate
one and similar stuff.
Git-Dch: Ignore
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Git-Dch: Ignore
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The show commands have different styles in both binaries as the audience
is potentially very different, but that doesn't mean we need to separate
the implementation especially as they are slightly similar. This also
allows us to switch between the different show versions at runtime via
an option.
Git-Dch: Ignore
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As we have support for 'hold', we need support for undoing a hold which
in effect means that we implemented most other states as well, just that
they weren't exposed in the interface directly so far.
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We had this code lying around in apt-mark for a while now, but other
frontends need this (and similar) functionality as well, so its high
time that we provide a public interface in libapt for this stuff.
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Users hold a package foo (at version X) or try to prevent the
installation of foo (usually based on the information they know about
version X), even if we say that we "hold a package". Conceptionally we
also need to know about which architecture we are talking and that is an
information bound to a version (as a package can change architecture
over time).
We internally did this lookup from Pkg to Ver already, we just move this
to a central place where the user has a change to influence it now.
Git-Dch: Ignore
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As usual by now, not all containers wrapped by the cacheset containers
support all methods, like push_back now, but they fail on use of these
unusable methods only.
Would be nice to not expose these methods for unsupporting containers at
all, but that means either a lot of classes or a lot of std::enable_if
magic, which seems like too big work for this small wrapper for now.
Git-Dch: Ignore
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Technically an abi-break as we change a template parameter to
std::iterator for this, but this class is empty in all instances and
just causes the right typedefs to be set – which were incorrect as
detected by std::stable_partition as its implementation uses ::pointer
and needs also a operator* implementation.
In practice CacheSets have no external users (yet) and the difference is
visible only at compile time (which was an error before and now works),
not while linking.
The changes to apt-mark are functionally identical to the code before,
just that we use a std:: algorithm now instead of trying hard on our
own.
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Some codepaths need to check if the system (in our case usually dpkg)
supports MultiArch or not. We had copy-pasted the check so far into
these paths, but having it as a system check is better for reusability.
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Filenames we get could include spaces, but also the tmpdir we work in
and the failures we print in return a very generic and unhelpful…
Properly supporting spaces is a bit painful as we constructed gpg
command before, which is now moved to (multilevel) calls to temporary
scripts instead.
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And of course, testing obscure things ends up showing obscure 'bugs' or
better shortcomings/inconsitencies, so lets fix them with the tests.
Git-Dch: Ignore
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A bit unfair that only Bzr had this message. Lets at least print it for
git as well with the option of adding more later without string changes.
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Git-Dch: Ignore
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As said in the bugreport, this is hardly a serious problem on a security
front, but it was always on the list to have the filename configurable
somehow and the stable filename is a problem for parallel executions.
Using an environment variable (APT_EDSP_DUMP_FILENAME) for this is more
or less the best we can do here as solvers do not get told about our
configuration and such.
Closes: 795600
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How the Multi-Arch field and pkg:<arch> dependencies interact was
discussed at DebConf15 in the "MultiArch BoF". dpkg and apt (among other
tools like dose) had a different interpretation in certain scenarios
which we resolved by agreeing on dpkg view – and this commit realizes
this agreement in code.
As was the case so far libapt sticks to the idea of trying to hide
MultiArch as much as possible from individual frontends and instead
translates it to good old SingleArch. There are certainly situations
which can be improved in frontends if they know that MultiArch is upon
them, but these are improvements – not necessary changes needed
to unbreak a frontend.
The implementation idea is simple: If we parse a dependency on foo:amd64
the dependency is formed on a package 'foo:amd64' of arch 'any'. This
package is provided by package 'foo' of arch 'amd64', but not by 'foo'
of arch 'i386'. Both of those foo packages provide each other through
(assuming foo is M-A:foreign) to allow a dependency on 'foo' to be
satisfied by either foo of amd64 or i386. Packages can also declare to
provide 'foo:amd64' which is translated to providing 'foo:amd64:any' as
well.
This indirection over provides was chosen as the alternative would be to
teach dependency resolvers how to deal with architecture specific
dependencies – which violates the design idea of avoiding resolver
changes, especially as architecture-specific dependencies are a
cornercase with quite a few subtil rules. Handling it all over versioned
provides as we already did for M-A in general seems much simpler as it
just works for them.
This switch to :any has actually a "surprising" benefit as well: Even
frontends showing a package name via .Name() [which doesn't show the
architecture] will display the "architecture" for dependencies in which
it was explicitely requested, while we will not show the 'strange' :any
arch in FullName(true) [= pretty-print] either. Before you had to
specialcase these and by default you wouldn't get these details shown.
The only identifiable disadvantage is that this complicates error
reporting and handling. apt-get's ShowBroken has existing problems with
virtual packages [it just shows the name without any reason], so that
has to be worked on eventually. The other case is that detecting if a
package is completely unknown or if it was at least referenced somewhere
needs to acount for this "split" – not that it makes a practical
difference which error is shown… but its one of the improvements
possible.
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Initializing a random number generator with the time since epoch could
be good enough, but reaches its limits in test code as the 100
iterations might very well happen in the same second and hence the seed
number is always the same… clock() has a way lower resolution so it
changes more often and not unimportant: If many users start the update
at the same time it isn't to unlikely the SRV record will be ordered in
the same second choosing the same for them all, but it seems less likely
that the exact same clock() time has passed for them.
And if I have to touch this, lets change a few other things as well to
make me and/or compilers a bit happier (clang complained about the usage
of a GNU extension in the testcase for example).
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We had a very similar method previously for our own private usage, but
with some generalisation we can move this check into the acquire system
proper so that all frontends profit from this compatibility change.
As we are disabling a security feature here a warning is issued and
frontends are advised to consider reworking their download logic if
possible.
Note that this is implemented as an all or nothing situation: We can't
just (not) drop privileges for a subset of the files in a fetcher, so in
case you have to download some files with and some without you need to
use two fetchers.
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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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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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First of, the temporary directory we download the changelog to needs to
be owned by _apt, but that also means that we don't need to check if we
could/should drop privs as the download happens to a dedicated tempdir
and only after that it is moved to its final location by a privileged user.
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Reported-By: codespell
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Thanks: Steve Slangasek for the suggestion
Closes: 695633
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feature/srv-records
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Conflicts:
cmdline/apt-helper.cc
cmdline/makefile
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This just changes the DoSearch code to use DisplayRecord to
display the record when the full record is requested.
Closes: #660851
[jak@debian.org: Wrote the commit message]
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Simply overriding the value caused patterns that previously matched
a real package name to not match anymore.
Closes: #760868
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Closes: #283400
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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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Closes: #153161
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debian/experimental
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More standardization
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Switch to std::unique_ptr, as this is safer than SPtr.
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Gbp-Dch: ignore
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Also optionally enable old output by setting APT::Policy=0.
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Thanks: Andre Felipe Machado for initial patch
Closes: 414848
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It's gone.
Gbp-Dch: ignore
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Git-Dch: Ignore
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Trade deduplication of code for a bunch of new virtuals, so it is
actually visible how the different indexes behave cleaning up the
interface at large in the process.
Git-Dch: Ignore
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Expecting the worst is easy to code, but has its disadvantages e.g.
by creating package structures which otherwise would have never
existed. By creating the provides instead at the time a package
structure is added we are well prepared for the introduction of partial
architectures, massive amounts of M-A:foreign (and :allowed) and co as
far as provides are concerned at least. We have something relatively
similar for dependencies already.
Many tests are added for both M-A states and the code cleaned to
properly support implicit provides for foreign architectures and
architectures we 'just' happen to parse.
Git-Dch: Ignore
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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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We aren't and we will not be really compatible again with the previous
stable abi, so lets drop these markers (which never made it into a
released version) for good as they have outlived their intend already.
Git-Dch: Ignore
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Having dependency data separated from the link between version/package
and the dependency allows use to work on sharing the depdency data a bit
as it turns out that many dependencies are in fact duplicates. How many
are duplicates various heavily with the sources configured, but for a
single Debian release the ballpark is 2 duplicates for each dependency
already (e.g. libc6 counts 18410 dependencies, but only 45 unique). Add
more releases and the duplicates count only rises to get ~6 for 3
releases. For each architecture a user has configured which given the
shear number of dependencies amounts to MBs of duplication.
We can cut down on this number, but pay a heavy price for it: In my
many releases(3) + architectures(3) test we have a 10% (~ 0.5 sec)
increase in cache creationtime, but also 10% less cachesize (~ 10 MB).
Further work is needed to rip the whole benefits from this through, so
this is just the start.
Git-Dch: Ignore
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Further abstracting our new ShowList allows to use it for containers of
strings as well giving us the option to implement an or-groups display
for the recommends and suggests lists which is a nice trick given that
it also helps with migrating the last remaining other cases of old
ShowList.
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