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Closes: #806422
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If it does not exist disabled priv dropping as there is nothing
we can drop to. This will unblock people with special chroots
or systems that deleted the "_apt" user.
Closes: #806406
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This fixes a regression caussed by commit
95278287f4e1eeaf5d96749d6fc9bfc53fb400d0
that moved the error detection of RunFds() later into the loop.
However this broke detecting issues like dead acquire methods.
Instead of relying on the global error state (which is bad)
we now pass a boolean value back from RunFds() and break on
false.
Closes: #806406
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The manpages were fixed by Justin B Rye, lets deal with the rest now.
Git-Dch: Ignore
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Git-Dch: Ignore
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Reference mail:
https://lists.debian.org/debian-l10n-english/2015/11/msg00006.html
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In 8d041b4f we made apt figure out based on the last Release file it has
if it should request a file or not given that the hashes changed or not.
So if we have a last Release file and do a request, do not sent a
Last-Modified header as we expect a change so much that a non-change
would indeed be an error. The Last-Modified header is therefore at best
ignored by the server, so sending it is just wasted effort. In the worst
case as time is a fragile thing the server decides against sending us an
update with the idea that we already have the latest content, which we
know for a fact that we haven't. Given that we sent less information to
the server our request is on its own also less identifiable as coming
from a returning or new user.
The disadvantage is that if we end up getting an old index file after
getting a new Release file from another mirror the old mirror will not
be able to tell us 'Hit', but instead sends us the complete file we
discard, but both lets us end up with the same error class in the end,
so the difference isn't big in practice.
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Reported-By: codespell
Git-Dch: Ignore
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Out of memory and similar circumstanzas could cause MMap::Map to fail
and especially the mmap/malloc calls in it. With some additional
checking we can avoid segfaults and similar in such situations – at
least in theory as if this is a real out of memory everything we do to
handle the error could just as well run into a memory problem as well…
But at least in theory (if MMap::Map is made to fail always) we can deal
with it so good that a user actually never sees a failure (as the cache
it tries to load with it fails and is discarded, so that DynamicMMap
takes over and a new one is build) instead of segfaulting.
Closes: 803417
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In ce1f3a2c we started warning about failing unlinking, which we
consistently do for directories. That isn't a problem as directories
usually aren't in the places we do want to clean up – with the potential
exeception of "lost+found", so lets ignore it like we ignore our own
partial/ subdirectory.
Closes: 805424
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space-gapping: '-o option= value'
That is a very old feature (straight from 1998), but it is super
surprising if you try setting empty values and instead get error
messages or a non-empty value as the next parameter is treated as the
value – which could have been empty, so if for some reason you need a
compatible way of setting an empty value try: '-o option="" ""'.
I can only guess that the idea was to support '-o option value', but we
survived 17 years without it, we will do fine in the future I guess.
Similar is the case for '-t= testing' even through '-t testing' existed
before and the code even tried to detect mistakes like '-t= -b' … all
gone now.
Technically that is as its removing a feature replacing it with another
a major interface break. In practice I really hope for my and their
sanity that nobody was using this; but if for some reaon you do: Remove
the space and be done.
I found the patch and the bugreport actually only after the fact, but
its reassuring that others are puzzled by this as well and hence a
thanks is in perfect order here as the patch is practical identical
[expect that this one here adds tests and other bonus items].
Thanks: Daniel Hartwig for initial patch.
Closes: 693092
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In 0940230d we started dropping privileges for file (and a bit later for
copy, too) with the intend of uniforming this for all methods. The
commit message says that the source will likely fail based on the
compressors already – and there isn't much secret in the repository
content. After all, after apt has run the update everyone can access the
content via apt anyway…
There are sources through which worked before which are mostly
single-deb (and those with the uncompressed files available).
The first one being especially surprising for users maybe, so instead of
failing, we make it so that apt detects that it can't access a source as
_apt and if so doesn't drop (for all sources!) privileges – but we limit
this to file/copy, so the uncompress which might be needed will still
fail – but that failed before this regression.
We display a notice about this, mostly so that if it still fails (e.g.
compressed) the user has some idea what is wrong.
Closes: 805069
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This 'ignores' the component Release files you can find in Debian
alongside the binary-* directories, which isn't exactly a common
usecase, but it worked before, so lets support it again as this isn't
worse than a valid Release file which is unsigned.
Git-Dch: Ignore
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Limit the field length to a char to avoid bogus FF for
utf-8 characters with the default length.
Closes: 799123
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Reported-By: cppcheck
Git-Dch: Ignore
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A slightly unlikely bug, but lets fix it while slightly reworking this
whole function to be slightly saner to look at, even if still not good.
Git-Dch: Ignore
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Unlinking /dev/null is bad, we shouldn't do that. Also, we should print
at least a warning if we tried to unlink a file but didn't manage to
pull it of (ignoring the case were the file is /dev/null or doesn't
exist in the first place).
This got triggered by a relatively unlikely to cause problem in
pkgAcquire::Worker::PrepareFiles which would while temporary
uncompressed files (which are set to keep compressed) figure out that to
files are the same and prepare for sharing by deleting them. Bad move.
That also shows why not printing a warning is a bad idea as this hide
the error for in non-root test runs.
Git-Dch: Ignore
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The wrapping will fail in the best case and actually end up deleting
/dev/null in the worst case. Given that there is no point in trying to
write atomically to /dev/null as you can't read from it again just
ignore these flags if higher level code ends up trying to use them on
/dev/null.
Git-Dch: Ignore
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Leading or trailing newlines can be confusing for our parser as it
expects two newlines to start/stop a new stanza. To solve this the lines
we wanna add are printed first, ignore any leading newlines and then add
the stanza as provided by dpkg-deb with or without trailing newlines as
the parser will look at the first stanza only anyway and removing
trailing newlines is considerably harder to do.
Closes: 802553
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Based on a discussion with Niels Thykier who asked for Contents-all this
implements apt trying for all architecture dependent files to get a file
for the architecture all, which is treated internally now as an official
architecture which is always around (like native). This way arch:all
data can be shared instead of duplicated for each architecture requiring
the user to download the same information again and again.
There is one problem however: In Debian there is already a binary-all/
Packages file, but the binary-any files still include arch:all packages,
so that downloading this file now would be a waste of time, bandwidth
and diskspace. We therefore need a way to decide if it makes sense to
download the all file for Packages in Debian or not. The obvious answer
would be a special flag in the Release file indicating this, which would
need to default to 'no' and every reasonable repository would override
it to 'yes' in a few years time, but the flag would be there "forever".
Looking closer at a Release file we see the field "Architectures", which
doesn't include 'all' at the moment. With the idea outlined above that
'all' is a "proper" architecture now, we interpret this field as being
authoritative in declaring which architectures are supported by this
repository. If it says 'all', apt will try to get all, if not it will be
skipped. This gives us another interesting feature: If I configure a
source to download armel and mips, but it declares it supports only
armel apt will now print a notice saying as much. Previously this was a
very cryptic failure. If on the other hand the repository supports mips,
too, but for some reason doesn't ship mips packages at the moment, this
'missing' file is silently ignored (= that is the same as the repository
including an empty file).
The Architectures field isn't mandatory through, so if it isn't there,
we assume that every architecture is supported by this repository, which
skips the arch:all if not listed in the release file.
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This was discussed a while ago on #debian-apt and now that I see myself
making this mistake lets bite the bullet and fix it in the easy way out
version: Using a new name which fits with a similar named setter and
deprecate the old method instead of 'hostily' changing API.
Closes: #803471
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Removals in the acquire progress can be pretty important, so a failure
should be silently ignored, so we wrap our unlink call in a slightly
more forgiving wrapper checking things.
Git-Dch: Ignore
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Git-Dch: Ignore
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Its not as simple as I initially thought to abstract this enough to make
it globally usable, so lets not pollute global namespace with this for
now.
Git-Dch: Ignore
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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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Especially with apt now, it can be useful to set an option only for apt
and not for apt-get. Using a binary-specific subtree which is merged into
the root seems like a simple enough trick to achieve this.
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The manpage is also slightly updated to work better as a central hub to
push people from all angles into the right directions without writting a
book disguised as an error message.
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Insecure (aka unsigned) repositories are bad, period. We want to get
right of them finally and as a first step we are printing scary
warnings. This is already done, this commit just changes the messages to
be more consistent and prevents them from being displayed if
authenticity is guaranteed some other way (as indicated with
trusted=yes).
The idea is to first print the pure fact like "repository isn't signed"
as a warning (and later as an error), while giving an explaination in a
immediately following notice (which is displayed only in quiet level 0:
so in interactive use, not in scripts and alike).
Closes: 796549
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All other reasons from methods/connect.cc were already included.
Git-Dch: Ignore
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The main part is refactoring through to allow hiding the magic needed to
support .deb files in deeper layers of libapt so that frontends have
less exposure to Debian specific classes like debDebPkgFileIndex.
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Showing just "Get: [1234 B]" looks very strange, so we now print the
filename and as usual the package name, version and architecture.
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Commit 653ef26c70dc9c0e2cbfdd4e79117876bb63e87d broke the camels back in
sofar that everything works in terms of our internal use of copy:/, but
external use is completely destroyed. This is kinda the reverse of what
happened in "parallel" in the sid branch, where external use was mostly
fine, internal and external exploded on the GzipIndexes option.
We fix this now by rewriting our internal use by letting copy:/ only do
what the name suggests it does: Copy files and not uncompress them
on-the-fly. Then we teach copy and the uncompressors how to deal with
/dev/null and use it as destination file in case we don't want to store
the uncompressed files on disk.
Closes: 799158
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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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We have a few places and there will be a few more still where we have to
call dpkg to detect/set certain features or settings. Centralizing the
calling infrastructure now seems like a good idea before we add another.
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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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Gbp-Dch: ignore
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Gbp-Dch: ignore
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The former is not thread-safe, whereas the latter is.
Gbp-Dch: ignore
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Since gcc 4.9, the API for erase slightly changed. In
commit 3dddcdf2432e78f37c74d8c76c2c519a8d935ab2 the
existing checks for __cplusplus where changed to
check the gcc version, as the __cplusplus check
did nothing, because gcc 4.8 already provided the
standard value in there.
Fix the code to check for the gcc version in two
more places, and change the existing checks to
use a convenience macro.
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This makes non-C++11 reverse deps wishing to use it FTBFS.
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This function only exists on a limited number of platforms, so
we add a configure check to make sure it exists.
Gbp-Dch: ignore
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ctime() is not thread-safe, ctime_r() is.
Gbp-Dch: ignore
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strtok() is not thread-safe, whereas strtok_r() is.
Gbp-Dch: ignore
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Gbp-Dch: ignore
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