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dpkg and dak know various field names and order them in their output,
while we have yet another order and have to play catch up with them as
we are sitting between chairs here and neither order is ideal for us,
too.
A little testcase is from now on supposed to help ensureing that we do
not derivate to far away from which fields dpkg knows and orders.
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dpkg -l < 1.16.2 loads the available file and hence sees a package which
later versions do not see, leading to failures on travis-ci.
The different versions also have slightly different messages.
Git-Dch: Ignore
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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
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Especially pdiff-enhanced downloads have the tendency to fail for
various reasons from which we can recover and even a successful download
used to leave the old unpatched index in partial/.
By adding a new method responsible for making the transaction of an
individual file happen we can at specialisations especially for abort
cases to deal with the cleanup.
This also helps in keeping the compressed indexes around if another
index failed instead of keeping the decompressed files, which we
wouldn't pick up in the next call.
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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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If we get a IMSHit for the Transaction-Manager (= the InRelease file or
as its still supported fallback Release + Release.gpg combo) we can
assume that every file we would queue based on this manager, but already
have locally is current and hence would get an IMSHit, too. We therefore
save us and the server the trouble and skip the queuing in this case.
Beside speeding up repetative executions of 'apt-get update' this way we
also avoid hitting hashsum errors if the indexes are in fact already
updated, but the Release file isn't yet as it is the case on well
behaving mirrors as Release files is updated last.
The implementation is a bit harder than the theory makes it sound as we
still have to keep reverifying the Release files (e.g. to detect now expired
once to avoid an attacker being able to silently stale us) and have to
handle cases in which the Release file hits, but some indexes aren't
present (e.g. user added a new foreign architecture).
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Its a bit unpredictable which permissons and owners we will encounter on
a CD-ROM (or a USB stick, as apt-cdrom is responsible for those too),
so we have to ensure in this codepath as well that everything is nicely
setup without waiting for a 'apt-get update' to fix up the (potential)
mess.
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We do this in HTTP already to give the CPU some exercise while the disk
is heavily spinning (or flashing?) to store the data avoiding the need
to reread the entire file again later on to calculate the hashes – which
happens outside of the eyes of progress reporting, so you might ended up
with a bunch of https workers 'stuck' at 100% while they were busy
calculating hashes.
This is a bummer for everyone using apt as a connection speedtest as the
https method works slower now (not really, it just isn't reporting done
too early anymore).
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Methods get told which hashes are expected by the acquire system, which
means we can use this list to restrict what we calculate in the methods
as any extra we are calculating is wasted effort as we can't compare it
with anything anyway.
Adding support for a new hash algorithm is therefore 'free' now and if a
algorithm is no longer provided in a repository for a file, we
automatically stop calculating it.
In practice this results in a speed-up in Debian as we don't have SHA512
here (so far), so we practically stop calculating it.
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Servers who advertise that they close the connection get the 'Closes'
encoding flag, but this conflicts with servers who response with a
transfer-encoding (e.g. encoding) as it is saved in the same flag.
We have a better flag for the keep-alive (or not) of the connection
anyway, so we check this instead of the encoding.
This is in practice not much of a problem as real servers we talk to are
HTTP1.1 servers (with keep-alive) and there isn't much point in doing
chunked encoding if you are going to close anyway, but our simple
testserver stumbles over this if pressed and its a bit cleaner, too.
Git-Dch: Ignore
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file sends information about the uncompressed file if it can find it as
well as for the compressed file. This was done only for gzip so far, but
we support more compression types. That this information isn't used a
lot is a different story.
Git-Dch: Ignore
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The worker expects that the methods tell him when they start or finish
downloading a file. Various information pieces are passed along in this
report including the (expected) filesize. https was using a "global"
struct for reporting which made it 'reuse' incorrect values in some
cases like a non-existent InRelease fallbacking to Release{,.gpg}
resulting in a size-mismatch warning. Reducing the scope and redesigning
the setting of the values we can fix this and related issues.
Closes: 777565, 781509
Thanks: Robert Edmonds and Anders Kaseorg for initial patchs
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We just need it for unit tests and our debian/rules file actually skips
calling them if nocheck is given… but this fails anyhow as we declared a
hard-dependency on it. Demoting the error to a warning in configuration
and adding a test in the 'make test' path with a friendly message allows
nocheck to be useful again.
(Running unit tests is fully encouraged of course, but bootstrappers and
co do not need to be burdened with this stuff)
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On single-arch the parsing was creating groupnames like 'apt:amd64' even
through it should be 'apt' and a package in it belonging to architecture
amd64. The result for foreign architectures was as expected: The
dependency isn't satisfiable, but for native architecture it means the
wrong package (ala apt:amd64:amd64) is linked so this is also not
satisfiable, which is very much not expected.
No longer excluding single-arch from this codepath allows the generation
of the correct links, which still link to non-exisiting packages for
foreign dependencies, but natives link to the expected native package
just as if no architecture was given.
For negative arch-specific dependencies ala Conflicts this matter was
worse as apt will believe there isn't a Conflict to resolve, tricking it
into calculating a solution dpkg will refuse.
Architecture specific positive dependencies are rare in jessie – the
only one in amd64 main is foreign –, negative dependencies do not even
exist. Neither class has a native specimen, so no package in jessie is
effected by this bug, but it might be interesting for stretch upgrades.
This also means the regression potential is very low.
Closes: 777760
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In #780028 we were discussing how the or-group order should be more
important than keep-back decisions of 'upgrade'. We have this behaviour,
but to ensure it stays this way lets add a test for it.
Git-Dch: Ignore
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This isn't testing much of the 'complex' parts,
but its better than nothing for now.
Git-Dch: Ignore
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Working with strings c-style is complicated and error-prune,
so by converting to c++ style we gain some simplicity and
avoid buffer overflows by later extensions.
Git-Dch: Ignore
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gnupg is case-insensitive about keyids, so back then apt-key called it
directly any keyid was accepted, but now that we work more with the
keyid ourself we regressed to require uppercase keyids by accident.
This is also inconsistent with other apt-key commands which still use
gnupg directly. A single case-insensitive grep and we are fine again.
Closes: 781696
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As part of the “reproducible builds” effort [1], we have noticed that
apt could not be built reproducibly.
One issue is that it uses the __DATE__ and __TIME__ macros of the C
preprocessor to display the time of build in the online help. We believe
this information not to be really useful to users as they can always
look at the package data and metadata to figure it out.
The attached patch simply removes this information. All
non-documentation packages can then be built reproducibly with our
current experimental framework.
[David: changed the string slightly to be untranslateable as well]
Closes: 774342
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We use test{success,failure} now all over the place in the framework, so
its only consequencial to do this in the situations in which we test for
a specific output as well.
Git-Dch: Ignore
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Bug #778375 uncovered that https wasn't properly integrated in the class
family tree of http as it was supposed to be leading to a NULL pointer
dereference. Fixing this 'properly' was deemed to much diff for
practically no gain that late in the release, so commit
0c2dc43d4fe1d026650b5e2920a021557f9534a6 just fixed the synptom, while
this commit here is fixing the cause plus adding a test.
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We are able to run maintainer scripts if needed before, but we need to
set ADMINDIR to be able to call dpkg tools like dpkg-trigger inside of
them.
Git-Dch: Ignore
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Commit 9ec748ff103840c4c65471ca00d3b72984131ce4 from Feb 23 last year
adds a version check after 8daf68e366fa9fa2794ae667f51562663856237c
added 8 days earlier negative points for breaks/conflicts with the
intended that only dependencies which are satisfied propagate points
(aka: old conflicts do not).
The implementation was needlessly complex and flawed through preventing
positive dependencies from gaining points like they did before these
commits making library transitions harder instead of simpler. It worked
out anyhow most of the time out of pure 'luck' (and other ways of
gaining points) or got miss attributed to being a temporary hick-up.
Closes: 774924
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Your mileage may vary, but don't worry: There is more than one way to
do it, but our one size fits all is not a bigger hammer, but an entire
roundhouse kick! So brace yourself for the tl;dr: The limit is gone.*
Beware: This fixes also the problem that a double newline is
unconditionally added 'later' which is an overcommitment in case
the dsc filesize is limit-2 <= x <= limit.
* limited to numbers fitting into an unsigned long long.
Closes: 774893
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The issue was that https.cc never called URIStart(), one way to
detect this is that no download progress is generated without
this call. The test now checks for this and as a side-effect will
also ensure that we do not break download progress reporting and
Acquire::{http,https}::Dl-Limit accidently.
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Commit 299aea924ccef428219ed6f1a026c122678429e6 fixes the problem of
not logging terminal in case stdin & stdout are not a terminal. The
problem is that we are then trying to pass-through stdin content by
reading from the apt-process stdin and writing it to the stdin of the
child (dpkg), which works great for users who can control themselves,
but pipes and co are a bit less forgiving causing us to pass everything
to the first child process, which if the sending part of the pipe is
e.g. 'yes' we will never see the end of it (as the pipe is full at some
point and further writing blocks).
There is a simple solution for that of course: If stdin isn't a terminal,
we us the apt-process stdin as stdin for the child directly (We don't do
this if it is a terminal to be able to save the typed input in the log).
Closes: 773061
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dpkg checks now for dependencies before running triggers, so that
packages can now end up in trigger states (especially those we are not
touching at all with our calls) after apt is done running.
The solution to this is trivial: Just tell dpkg to configure everything
after we have (supposely) configured everything already. In the worst
case this means dpkg will have to run a bunch of triggers, usually it
will just do nothing though.
The code to make this happen was already available, so we just flip a
config option here to cause it to be run. This way we can keep
pretending that triggers are an implementation detail of dpkg.
--triggers-only would supposely work as well, but --configure is more
robust in regards to future changes to dpkg and something we will
hopefully make use of in future versions anyway (as it was planed at the
time this and related options were implemented).
Note that dpkg currently has a workaround implemented to allow upgrades
to jessie to be clean, so that the test works before and after. Also
note that test (compared to the one in the bug) drops the await test as
its is considered a loop by dpkg now.
Closes: 769609
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If we have no controlling terminal opening a terminal will make this
terminal our controller, which is a serious problem if this happens to
be the pseudo terminal we created to run dpkg in as we will close this
terminal at the end hanging ourself up in the process…
The offending open is the one we do to have at least one slave fd open
all the time, but for good measure, we apply the flag also to the slave
fd opening in the child process as we set the controlling terminal
explicitely here.
This is a regression from 150bdc9ca5d656f9fba94d37c5f4f183b02bd746 with
the slight twist that this usecase was silently broken before in that it
wasn't logging the output in term.log (as a pseudo terminal wasn't
created).
Closes: 772641
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Real webservers (like apache) actually send an error page with a 416
response, but our client didn't expect it leaving the page on the socket
to be parsed as response for the next request (http) or as file content
(https), which isn't what we want at all… Symptom is a "Bad header line"
as html usually doesn't parse that well to an http-header.
This manifests itself e.g. if we have a complete file (or larger) in
partial/ which isn't discarded by If-Range as the server doesn't support
it (or it is just newer, think: mirror rotation).
It is a sort-of regression of 78c72d0ce22e00b194251445aae306df357d5c1a,
which removed the filesize - 1 trick, but this had its own problems…
To properly test this our webserver gains the ability to reply with
transfer-encoding: chunked as most real webservers will use it to send
the dynamically generated error pages.
(The tests and their binary helpers had to be slightly modified to
apply, but the patch to fix the issue itself is unchanged.)
Closes: 768797
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If we have no controlling terminal opening a terminal will make this
terminal our controller, which is a serious problem if this happens to
be the pseudo terminal we created to run dpkg in as we will close this
terminal at the end hanging ourself up in the process…
The offending open is the one we do to have at least one slave fd open
all the time, but for good measure, we apply the flag also to the slave
fd opening in the child process as we set the controlling terminal
explicitely here.
This is a regression from 150bdc9ca5d656f9fba94d37c5f4f183b02bd746 with
the slight twist that this usecase was silently broken before in that it
wasn't logging the output in term.log (as a pseudo terminal wasn't
created).
Closes: 772641
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Real webservers (like apache) actually send an error page with a 416
response, but our client didn't expect it leaving the page on the socket
to be parsed as response for the next request (http) or as file content
(https), which isn't what we want at all… Symptom is a "Bad header line"
as html usually doesn't parse that well to an http-header.
This manifests itself e.g. if we have a complete file (or larger) in
partial/ which isn't discarded by If-Range as the server doesn't support
it (or it is just newer, think: mirror rotation).
It is a sort-of regression of 78c72d0ce22e00b194251445aae306df357d5c1a,
which removed the filesize - 1 trick, but this had its own problems…
To properly test this our webserver gains the ability to reply with
transfer-encoding: chunked as most real webservers will use it to send
the dynamically generated error pages.
Closes: 768797
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dpkg checks now for dependencies before running triggers, so that
packages can now end up in trigger states (especially those we are not
touching at all with our calls) after apt is done running.
The solution to this is trivial: Just tell dpkg to configure everything
after we have (supposely) configured everything already. In the worst
case this means dpkg will have to run a bunch of triggers, usually it
will just do nothing though.
The code to make this happen was already available, so we just flip a
config option here to cause it to be run. This way we can keep
pretending that triggers are an implementation detail of dpkg.
--triggers-only would supposely work as well, but --configure is more
robust in regards to future changes to dpkg and something we will
hopefully make use of in future versions anyway (as it was planed at the
time this and related options were implemented).
Closes: 769609
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We were already considering these cases, but the code was flawed, so
that packages changing architectures are incorrectly handled and hence
the wrong architecture is used to call dpkg with, so that dpkg says the
package isn't installed (which it isn't for the requested architecture).
Closes: 770898
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The bugreport itself describes the case of the ordering code detecting a
loop where none is present, but the testcase finds also cases in which
there is actually a loop and we fail to realize it. --reinstall can be
considered an interactive command through and it usually doesn't
encounter such "hard" problems (= looping essentials), so this is less
serious than it sounds at first.
Closes: 770291
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apt-key given a long keyid reports just "OK" all the time, but doesn't
delete the mentioned key as it doesn't find the key.
Note: In debian/experimental this was closed with
29f1b977100aeb6d6ebd38923eeb7a623e264ffe which just added the testcase
as the rewrite of apt-key had fixed this as well.
Closes: 754436
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We run dpkg on its own pty, so we can log its output and have our own
output around it (like the progress bar), while also allowing debconf
and configfile prompts to happen.
In commit 223ae57d468fdcac451209a095047a07a5698212 we changed to
constantly reopening the slave for kfreebsd. This has the sideeffect
though that in some cases slave and master will lose their connection on
linux, so that no output is passed along anymore. We fix this by having
always an fd referencing the slave open (linux), but we don't use it
(kfreebsd).
Failing to get our PTY up and running has many (bad) consequences
including (not limited to, nor all at ones or in any case) garbled ouput,
no output, no logging, a (partial) mixture of the previous items, …
This commit is therefore also reshuffling quiet a bit of the creation
code to get especially the output part up and running on linux and the
logging for kfreebsd.
Note that the testcase tries to cover some cases, but this is an
interactivity issue so only interactive usage can really be a good test.
Closes: 765687
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The fd moves out of scope here anyway, so we should close it properly
instead of leaking it which will tickle down to dpkg maintainer scripts.
Closes: 767774
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Only "recent" versions of dpkg support stdin for merge instead of a
file, so as a quick fix we delay calling it until we really need it
which fixes most of the problem already.
Checking for a specific dpkg version here is deemed too much work, just
like using a temporary file here and depends a too high requirement for
this minor usecase. After all, it didn't work at all before, so we break
nobody here and can fix it if someone complains (with a patch).
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On travis we work with a pre-multiarch version of dpkg, so the output is
slightly different in regards to package names.
Git-Dch: Ignore
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We run dpkg on its own pty, so we can log its output and have our own
output around it (like the progress bar), while also allowing debconf
and configfile prompts to happen.
In commit 223ae57d468fdcac451209a095047a07a5698212 we changed to
constantly reopening the slave for kfreebsd. This has the sideeffect
though that in some cases slave and master will lose their connection on
linux, so that no output is passed along anymore. We fix this by having
always an fd referencing the slave open (linux), but we don't use it
(kfreebsd).
Failing to get our PTY up and running has many (bad) consequences
including (not limited to, nor all at ones or in any case) garbled ouput,
no output, no logging, a (partial) mixture of the previous items, …
This commit is therefore also reshuffling quiet a bit of the creation
code to get especially the output part up and running on linux and the
logging for kfreebsd.
Note that the testcase tries to cover some cases, but this is an
interactivity issue so only interactive usage can really be a good test.
Closes: 765687
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The fd moves out of scope here anyway, so we should close it properly
instead of leaking it which will tickle down to dpkg maintainer scripts.
Closes: 767774
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While on linux files are created in /tmp with $USER:$USER, on my
kfreebsd testmachine they are created with $USER:root, so we pull some
strings here to make it work on both.
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We autocreate for a while now the last two directories in /var/lib/apt/lists
(similar for /var/cache/apt/archives) which is very nice for systems having
any of those on tmpfs or other non-persistent storage. This also means
though that this creation is effected by the default umask, so for
people with aggressive umasks like 027 the directories will be created
with 750, which means all non-root users are left out, which is usually
exactly what we want then this umask is set, but the cache and lib
directories contain public knowledge. There isn't any need to protect
them from viewers and they render apt completely useless if not
readable.
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Usually they don't provide a lot in terms of what they test, but they
help in covering many lines from strictly anecdotal commands (stats,
moo) and error messages, so that stuff which really needs to be tested,
but isn't is better visible in coverage reports.
Git-Dch: Ignore
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The conversion to accept only relevant options for commands has
forgotten another one, so adding it again even through the usecase might
very well be equally good served by --print-uris.
Closes: 742578
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This used to work before we implemented a stricter commandline parser
and e.g. the dd-schroot-cmd command constructs commandlines like this.
Reported-By: Helmut Grohne
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Collect all hashes we can get from the source record and put them into a
HashStringList so that 'apt-get source' can use it instead of using
always the MD5sum.
We therefore also deprecate the MD5 struct member in favor of the list.
While at it, the parsing of the Files is enhanced so that records which
miss "Files" (aka MD5 checksums) are still searched for other checksums
as they include just as much data, just not with a nice and catchy name.
This is a cherry-pick of 1262d35 with some dirty tricks to preserve ABI.
LP: 1098738
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