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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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Not a big deal to leak fds in debugging mode, but for completeness.
Git-Dch: Ignore
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The comment says it should have been removed with Lenny+1 which is a
small while ago already, so it seems like a good time now…
And as this is a cleanup commit it also gets right of spurious
whitespace at the end of lines, adds missing fold markers and similar
busy work.
Git-Dch: Ignore
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We had an old FIXME saying that it is probably pointless to do this if
we limit by length of the commandline already and I completely agree.
The splitting is bad enough if it must be done, so we should only do it
if we have to (as in absolute length of commandline) and, but that is
just a remark, it is unlikely that we ever have/had a call triggering
this as the default value was ~32000 items…
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We end our operation by calling "dpkg --configure -a", so instead of
running a (big) configure run with all packages mentioned explicitly
before this, we simply skip them and let them be handled by this call
implicitly.
There isn't really an observeable gain to be had here from a speed
point, but it helps in avoiding an (uncommon) problem of having a too
long commandline passed to dpkg, which we would split up (probably
incorrectly).
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Setting the C++ locale via std::locale::global(std::locale("")); which
would otherwise default to the default C locale (aka: unaffected by
setlocale) effects the formatting of numeric types in IO streams, which
for output for humans is perfectly sensible, but breaks our many text
interfaces used and parsed by us and others without expecting the
numbers to be formatted.
Closes: #825396
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Reported-By: lintian: spelling-error-in-binary
Git-Dch: Ignore
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This fixes comparisons where either the stored or the input string
have a trailing comma.
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This hopefully makes debugging things easier.
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This prevented some sources.list entries from working, an example
of which can be found in the test.
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A frontend like apt-file is only interested in a specific set of files
and selects those easily via "Created-By". If it supports two locations
for those files through it would need to select both and a user would
need to know that implementation detail for sources.list configuration.
The "Identifier" field is hence introduced which by default has the same
value as "Created-By", but can be freely configured – especially it can
be used to give two indexes the same identifier.
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Sometimes index files are in different locations in a repository as it
is currently the case for Contents files which are per-component in
Debian, but aren't in Ubuntu. This has historic reasons and is perhaps
changed soon, but such cases of transitions can always happen in the
future again, so we should prepare:
Introduced is a new field declaring that the current item should only be
downloaded if the mentioned item wasn't allowing for transitions without
a flagday in clients and archives.
This isn't implemented 'simpler' with multiple MetaKeys as items (could)
change their descriptions and perhaps also other configuration bits with
their location.
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It looks a bit strange on the outside to have multiple "native
architecture", but all is considered an implementation detail and e.g.
packages of arch:all are in dependency resolution equal to native
packages.
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We don't have to initialize the Release files with a set of IndexTargets
to acquire, but instead wait for the Release file to be acquired and
only then ask which IndexTargets to get.
Git-Dch: Ignore
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dpkg can optionally colorize its output since 1.18.5. Currently this
defaults to 'never', but it will eventually be 'auto'. It seems
reasonable to assume that a user who has enabled/disabled colors in apt
will want to have dpkg have the same state regarding color usage.
This isn't overriding explicit settings by the user, so in case a user
feels strongly about it one way or the other there are options.
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Users have the option since apt >= 1.1 to enforce that a Release file is
signed with specific key(s) either via keyring filename or fingerprints.
This commit adds an entry with the same name and value (except that it
doesn't accept filenames for obvious reasons) to the Release file so
that the repository owner can set a default value for this setting
effecting the *next* Release file, not the current one, which provides a
functionality similar "HTTP Public Key Pinning". The pinning is in
effect as long as the (then old) Release file is considered valid, but
it is also ignored if the Release file has no Valid-Until at all.
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A keyring file can include multiple keys, so its only fair for
transitions and such to support multiple fingerprints as well.
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Git-Dch: Ignore
Reported-By: gcc -fsanitize=address
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