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In the case of build-dep and other commands where a file can be
passed we must make sure not to normalize the path name as that
can have odd side effects, or well, cause the operation to do
nothing.
Test for build-dep-file is adjusted to perform the vcard check
once as "vcard" and once as "VCard", thus testing that this
solves the reported bug.
We inline the std::transform() and optimize it a bit to not
write anything in the common case (package names are defined
to be lowercase, the whole transformation is just for names
that should not exist...) to counter the performance hit of
the added find() call (it's about 0.15% more instructions
than with the existing transform, but we save about 0.67%
in writes...).
Closes: #854794
(cherry picked from commit 85ee4036c68d8ecd2c973d413a17aca81380900b)
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Interpreting a boolean as an int works just fine – it just hasn't the
intended result – it isn't a serious problem through as the disabling of
the usage of this dpkg calling style is just an "optimization"
(cherry picked from commit 4e18c2cee6da39982cc463cafbf27eab5561099f)
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This can happen e.g. for file: repositories. There is no inherent
problem with setting such values internally, but its bad style,
forbidden in the manpage and could be annoying in the future.
Gbp-Dch: Ignore
(cherry picked from commit 44ecb8c3579e5ae8828f83530e4151a0ff84d5d6)
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(cherry picked from commit 8e7a99564dd57b0dcb7df47b43e71ccefc8e0ebe)
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We try to configure all packages at the end which need to be configured,
but that also applies to packages which weren't completely installed
(e.g. maintainerscript failed) we end up removing in this interaction
instead.
APT doesn't perform this explicit configure in the end as it is using
"dpkg --configure --pending", but it does confuse the progress report
and potentially also hook scripts.
Regression-Of: 9ffbac99e52c91182ed8ff8678a994626b194e69
(cherry picked from commit bb9c5972524ac5c078fa0f0bc5674c7a0fe01fb4)
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dpkg stumbles over these (#844300) and we haven't dropped 'easier'
removes to be implicit and to be scheduled by dpkg by default so far
so we shouldn't push the decision in such cases to dpkg either.
(cherry picked from commit 53f3fc59f4eb37eea57bbde53fb75f2e15af0378)
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Our old idea was to look for the first package which would be "touched"
and take this as the package dpkg is talking about, but that is
incorrect in complicated situations like a package upgraded to/from
multiple M-A:same siblings installed.
As we us the progress report to decide what is still needed we have to
be reasonabily right about the package dpkg is talking about, so we jump
to quite a few loops to get it.
(cherry picked from commit 4b10240cca0dc0a4e82e42959545d2ae7e622d29)
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Given that we use the progress information to skip over actions dpkg has
already done like not purging a package which was already removed and
had no config files or not acting on disappeared packages and such it is
important that apt and dpkg agree on which states the package has to
pass through.
To ensure that we keep tabs on this in the future a warning is added at
the end if apt hasn't seen all the action it was supposed to see. I
can't wait for the first bugreporters to wonder about this…
(cherry picked from commit dabe9e2482180ada77d2adda2b3c03db22059fb8)
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If a package is triggered dpkg frequently issues two messages about it
causing us to make a note about it both times which messes up our
planned dpkg actions view. Adding these actions if we have nothing else
planned fixes this and should still be correct as those planned actions
will deal with the triggering just fine and we avoid strange problems
like a package triggered before its removed…
(cherry picked from commit 066d4a5bab628ef8220971bb5763ff8f3a13de07)
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If the dependency line does not contain spaces in the repository
but does in the dpkg status file (because dpkg normalized the
dependency list), the dpkg line might be longer than the line
in the repository. If it now happens to be longer than 1024
characters, it would be skipped, causing the hashes to be
out of date.
Note that we have to bump the minor cache version again as
this changes the format slightly, and we might get mismatches
with an older src cache otherwise.
Fixes Debian/apt#23
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If a Binary field contains one or more spaces before a comma, the
code produced a segmentation fault, as it accidentally set a pointer
to 0 instead of the value of the pointer.
If the comma is at the beginning of the field, the code would
create a binStartNext that points one element before the start
of the string, which is undefined behavior.
We also need to check that we do not exit the string during the
replacement of spaces before commas: A string of the form " ,"
would normally exit the boundary of the Buffer:
binStartNext = offset 1 ','
binEnd = offset 0 ' '
isspace_ascii(*binEnd) = true => --binEnd
=> binEnd = - 1
We get rid of the problem by only allowing spaces to be eliminated
if they are not the first character of the buffer:
binStartNext = offset 1 ','
binEnd = offset 0 ' '
binEnd > buffer = false, isspace_ascii(*binEnd) = true
=> exit loop
=> binEnd remains 0
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This allows other vendors to use different paths, or to build
your own APT in /opt for testing. Note that this uses + 1 in
some places, as the paths we receive are absolute, but we need
to strip of the initial /.
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Several modules use std::array without including the
array header. Bad modules.
Some modules use STDOUT_FILENO and friends, or close()
without including unistd.h, where they are defined.
One module also uses WIFEXITED() without including
sys/wait.h.
Finally, environ is not specified to be defined in unistd.h. We
are required to define it ourselves according to POSIX, so let's
do that.
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Ubuntu uses *.ddeb files for their debug packages, but the interface we
are using since f495992428a396e0f98886c9a761a804aa161c68 to talk to dpkg
isn't supporting *.ddeb files. This used to work previously as apt itself
isn't caring about the filenames at all and if they are explicitly
mentioned dpkg will accept all, too.
It might or might not be a good idea to patch dpkg, too, but regardless
of it happening, we don't want to couple us to closely to dpkg for this
minor feature but testing for this at runtime as it would delay shipping
the fix for the too long commandlines further.
It is also questionable if it is really a good idea to allow any file
extension to be used here (like .foobar in the testcase), but we used to
and we tend to avoid breaking existing usecases if we can help it.
As a bonus, this also allows the installation of ddeb files directly
from the commandline as you can with deb files already. We continue to
ignore udeb through as the user-mistake to useful ratio is too high.
LP: #1616909
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In most cases apt was already skipping the (re)setting of packages as
to be removed/purged if dpkg had told us that it already did, but we
haven't dealt with it in the most obvious of the cases: Selections set
for packages we touched in this operation which either restores
selections even dpkg would have overridden or e.g. tries to restore a
purge selection for a package which was just purged – does not happen
with apt itself as it isn't using selections in this way, but higher
frontends like aptitude do.
The result in the later case is a warning printed by dpkg that we try to
set selections for an unknown package, which is harmless per se, but can
be confusing for users and we really shouldn't cause warnings in dpkg if
we can help it.
Reported-By: Guillem Jover on IRC
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Commit 7ec343309b7bc6001b465c870609b3c570026149 got us most of the way,
but the last mile was botched by having the pending calls in the wrong
order as this way we potentially 'force' dpkg to remove/purge a package
it doesn't want to as another package still depends on it and the
replacement isn't fully installed yet.
So what we do now is a configure before remove and purge (all with
--no-triggers) and finishing off with another configure pending call to
take care of the triggers.
Note that in the bugreport example our current planner is forcing dpkg
to remove the package earlier via --force-depends which we could do for
the pending calls as well and could be used as a workaround, but we want
to do less forcing eventually.
Closes: 835094
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Instead of erroring out when receiving a SIGINT, let the
child deal with it - we'll error out anyway if the child
exits with an error or due to the signal. Also ignore
SIGQUIT, as system() ignores it.
This basically fixes Bug #832593, but: we are running
the hooks via sh -c. Some shells exit with a signal
error even if the command they are executing catches
the signal and exits successfully. So far, this has
been noticed on dash, which unfortunately, is our
default shell.
Example:
$ cat trap.sh
trap 'echo int' INT; sleep 10; exit 0
$ if dash -c ./trap.sh; then echo OK: $?; else echo FAIL: $?; fi
^Cint
FAIL: 130
$ if mksh -c ./trap.sh; then echo OK: $?; else echo FAIL: $?; fi
^Cint
OK: 0
$ if bash -c ./trap.sh; then echo OK: $?; else echo FAIL: $?; fi
^Cint
OK: 0
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We support "./foobar.deb" as a way to install a deb file directly.
Recently .changes files were added. This highlights a problem as you
can't add the changes file without also trying to install all of them.
Now, it could also be handy to add entire Packages/Sources files to
perhaps get a bunch of packages in without installing them all
implicitly.
This commit introduces --with-source which allows to add *.deb, *.changes,
*.dsc, source-dirs, Packages & Sources files (the later can also be
compressed) without also installing them.
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Seen in cme #833656 if Dir isn't set (yet) we end up later absoluting a
path which was supposed to be absolute already, so if Dir is empty we
assume it to be '/' instead. In practice this is a bug in the software
using libapt, but for maxium compatibility lets explicitly set the
default value here to be safe.
Reported-By: Paul Wise <pabs@debian.org>
Inspired-By: Brendan O'Dea <bod@debian.org>
Fixes-Regression: 475f75506db48a7fa90711fce4ed129f6a14cc9a
Shadows-Bug: #833656
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With b4450f1dd6bca537e60406b2383ab154a3e1485f we dropped what we
calculated here later on and now that we don't need it in the meantime
either we can just skip the busy work by default and expect dpkg to do
the right thing dropping also our little "last explicit configures"
removal trick introduced in b4450f1dd6bca537e60406b2383ab154a3e1485f.
This enables the last of a bunch of previously experimental options,
some of them existing still, but are very special and hence not really
worth documenting anymore (especially as it would need to be rewritten
now entirely) which is why the documentation is nearly completely
dropped.
The order of configuration stanzas in the simulation code changes
slightly as it isn't concerning itself with finding the 'right' order,
but any order is valid anyhow as long as the entire set happens in the
same call.
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If a planner lets actions to be figured out by dpkg in pending calls
these actions aren't mentioned in a simulation. While that might be
a good thing for debugging, it would be a change in behavior and
especially if a planner avoids explicit removals could be confusing for
users. As such we perform the same 'trick' as in the dpkg implementation
by performing explicitly what would be done by the pending calls.
To save us some work and avoid desyncs we perform a layer violation by
using deb/ code in the generic simulation – and further we perform ugly
dynamic_cast to avoid breaking the ABI for nothing; aptitude is the only
other user of the simulation class according to codesearch.d.n and for
that our little trick works. It just isn't working if you happen to
extend pkgSimulate or otherwise manage to call the protected Go methods
directly – which isn't very realistic/practical.
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The user has to approve the removal of a crossgraded package as it might
be needed to remove it (temporarily) in the process, but in most cases
we can happily avoid it and let dpkg unpack over it skipping the
remove. This has some effects on progress reporting and how deal with
selections through which makes this a tiny bit complicated.
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Same reason and implementation as for configure.
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A planner might not explicitly configure all packages, but we need to
know all packages which will be configured for progress reporting and to
tell the hook scripts about them as they rely on this for their own
functionality.
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If we want a package to be purged from the system tell dpkg in the
ordering (if it has to touch it explicitly) to remove it and cover the
purging of the config files at the end with a --purge --pending call.
That should help packages move conffiles around between packages
correctly even if the user is purging packages directly in big actions
like dist-upgrades involving many packages.
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Implemented a long while ago now with relatively good progress reporting
involving triggers is a good time to try delaying the execution of
triggers across dpkg invocations finally by default.
Note: The bugreport talks also about 'smarter' configuration which is a
much bigger part and approached from multiple directions, but doesn't
really involve triggers per-se so considering it decoupled should help
in getting it done…
Closes: #626599
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Telling dpkg early on that we are going to remove these packages later
helps it with auto-deconfiguration decisions and its another area where
a planner can ignore the nitty gritty details and let dpkg decide the
course of action if there are no special requirements.
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dpkg decides certain things on its own based on selections and
especially if we want to call --pending on purge/remove actions, we need
to ensure a clean slate or otherwise we surprise the user by removing
packages we weren't allowed to remove by the user in this run (the
selection might be an overarching plan for the not-yet "future").
Ideally dpkg would have some kind of temporal selection interface for
this case, but it hasn't, so we make it temporal with the risk of
loosing state if we don't manage to restore them.
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Having long commandlines split into two is a huge problem if it happens
and additionally if we want to introduce planners which perform less
micromanagment its a good idea to leave the details for dpkg to decide.
In practice this doesn't work yet unconditionally as a bug is hiding in
the ordering code of dpkg, but it works if apt imposes its ordering so
this commit allows for now at least to solve the first problem.
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APT (usually) knows which package is essential or not, so we can avoid
passing this force flag to dpkg unconditionally if the user hasn't
chosen a non-default essential handling obscuring the information.
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This was dropped in autotools as I found no use of the HAVE_PTSNAME_R
macro. Turns out it was typoed as HAVE_PTS_NAME_R. Fix the #ifdef and
add checks to CMake for it.
Closes: #833674
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If we receive an interrupt, set a flag and do not abort
immediately without waiting for the child. Once the child
exited, exit with an error if the interrupted flag is set.
Closes: #832593
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APT doesn't know which packages will be triggered in the course of
actions, so it can't plan to see them for progress beforehand, but if it
sees that dpkg says that a package was triggered we can add additional
states. This is pretty much magic – after all it sets back the progress
– and there are cornercases in which this will result in incorrect
totals (package in partial states may or may not loose trigger states),
but the worst which can happen is that the progress is slightly
incorrect and doesn't reach 100%, but so be it. Better than being stuck
at 100% for a while as apt isn't realizing that a bunch of triggers
still need to be processed.
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Hardcoding /var/crash means we can't test it properly and it isn't
really our style.
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The progress reporting for a package sheduled for purging only included
the states dpkg passes through while actually purging the package – if
the package was fully installed before dpkg will pass first through all
remove states before purging it, so in the interest of consistent
reporting our progress reporting should do that, too.
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We support installing ./foo.deb (and ./foo.dsc for source) for a while
now, but it can be a bit clunky to work with those directly if you e.g.
build packages locally in a 'central' build-area.
The changes files also include hashsums and can be signed, so this can
also be considered an enhancement in terms of security as a user "just"
has to verify the signature on the changes file then rather than
checking all deb files individually in these manual installation
procedures.
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If a user explicitly requests the download of arch:all apt shouldn't get
in the way and perform its detection dance if arch:all packages are
(also) in arch:any files or not.
This e.g. allows setting arch=all on a source with such a field (or one
which doesn't support all at all, but has the arch:all files like Debian
itself ATM) to get only the arch:all packages from there instead of
behaving like a no-op.
Reported-By: Helmut Grohne on IRC
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Moving code around into some more dedicated methods, no effective code
change itself.
Gbp-Dch: Ignore
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Theoretically it should be enough to change the Dir setting and have apt
pick the dpkg/status file from that. Also, it should be consistently
effected by RootDir. Both wasn't really the case through, so a user had
to explicitly set it too (or ignore it and have or not have expected
sideeffects caused by it).
This commit tries to guess better the location of the dpkg/status file
by setting dir::state::status to a naive "../dpkg/status", just that
this setting would be interpreted as relative to the CWD and not
relative to the dir::state directory. Also, the status file isn't really
relative to the state files apt has in /var/lib/apt/ as evident if we
consider that apt/ could be a symlink to someplace else and "../dpkg"
not effected by it, so what we do here is an explicit replace on apt/
– similar to how we create directories if it ends in apt/ – with dpkg/.
As this is a change it has the potential to cause regressions in so far
as the dpkg/status file of the "host" system is no longer used if you
set a "chroot" system via the Dir setting – but that tends to be
intended and causes people to painfully figure out that they had to set
this explicitly before, so that it now works more in terms of how the
other Dir settings work (aka "as expected"). If using the host status
file is really intended it is in fact easier to set this explicitely
compared to setting the new "magic" location explicitely.
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If we have a (e.g. locally built) deb file installed and do try to
install it again apt complained about this being a downgrade, but it
wasn't as it is the very same version… it was just confused into not
merging the versions together which looks like a downgrade then.
The same size assumption is usually good, but given that volatile files
are parsed last (even after the status file) the base assumption no
longer holds, but is easy to adept without actually changing anything in
practice.
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Writing first means that even in the event of a power-failure the
autobit is saved for future processing instead of "forgotten" so that
the package is treated as manually installed.
In some cases we have to re-run the writing after dpkg is done through
as dpkg can let packages disappear and in such cases apt will move
autobits around (or in that case non-autobits) which we need to store.
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This reverts commit 2b8221d66a8284042fc53c7bbb14bb9750e9137f.
Avoiding the use of GCC >= 5 stuff lets use go back to 4.8 simplifying
the travis setup again as well as reducing the backport requirements in
general.
This is possible because the std::get_time use requiring GCC >= 5 in
9febc2b238e1e322dce1f94ecbed46d595893b52 was replaced by handrolling it
in 1d742e01470bba27715a8191c50adde4b39c2f19, so the remaining uses are
just small conviniences we can do without.
Gbp-Dch: Ignore
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If a package file is formatted in a way that that no space
follows a deprecated "<", we would reformat it to "<=" and
increase the length of the output by 1, which can break.
Under normal circumstances with "<=" this should not be an
issue.
Closes: #828812
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Weak had no dedicated option before and Insecure and Downgrade were both
global options, which given the effect they all have on security is
rather bad. Setting them for individual repositories only isn't great
but at least slightly better and also more consistent with other
settings for repositories.
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Filesize is a silly hash all by itself, but in combination with others
it can be a strong opponent, so ensuring that it is in the list of
hashes and hence checked by the normal course of action the acquire
process takes is a good thing.
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APT can be forced to deal with repositories which have no security
features whatsoever, so just giving up on repositories which "just" fail
our current criteria of good security features is the wrong incentive.
Of course, repositories are better of fixing their setup to provide the
minimum of security features, but sometimes this isn't possible:
Historic repositories for example which do not change (anymore).
That also fixes problem with repositories which are marked as trusted,
but are providing only weak security features which would fail the
parsing of the Release file.
Closes: 827364
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Merging by URI means that having sources lines with different URI
methods results in 'strange' warning and error messages, which aren't
very friendly from a user point of view as not encoding the method in
the filename is effectivly an implementation detail.
Merging by filename removes these messages and makes everything "work"
even if it isn't working the way it is configured as the indexes aren't
acquired over the method given, but over the first method for this
release file (which argueably is an implementation detail stemming from
the filename encoding, too).
So either direction isn't perfectly "right", but personally I prefer
"magic" over strange error messages (and doing a full-circle detection
of this with its own messages which would need to be translated feels
like way too much effort for dubious gain).
Closes: 826944
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We usually use absolute paths to specific the location of dpkg, apt-key
and the like, but there is nothing wrong with using just the command
name and instead let exec(3) make the lookup in PATH.
We had a wild mixture before, so opting for the more accepting option
out of the two seems about right especially as it makes no difference in
the default case as apt uses absolute paths.
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