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2016-05-20fail instead of segfault on unreadable config filesDavid Kalnischkies
The report mentions "apt list --upgradable", but there are others which have inconsistent behavior ranging from segfaulting to doing something with the partial (and hence incomplete) data. We had a recent report about sources.list (#818628), this one mentions prefences, the obvious next step is conf files… so the testcase is adapted to check for all three in file and directory versions and run a bunch of commands each time which should all have more or less the same behavior in such a case (aka error out). Closes: 824503
2016-05-15Normalize Signed-By values by removing trailing commas everywhereJulian Andres Klode
This fixes comparisons where either the stored or the input string have a trailing comma.
2016-05-15Add conflicting Signed-By values to error messageJulian Andres Klode
This hopefully makes debugging things easier.
2016-05-12edsp: warn if unexpected stanzas appear in the solutionDavid Kalnischkies
Unexpected are for examples removal requests for versions which aren't installed, installations of already installed versions & requests to install and remove a package at the same time.
2016-05-10edsp: support generic and solver-specific configsDavid Kalnischkies
The spec was slightly inconsistent if the preferences setting is available only as generic or specific setting & the code only supported the specific one, while for the strict-pinning was only generic… As the usual pattern for apt is to have both options we adapt the spec and code to support both as well. This also adds a purely informal "Solver" field so in case the request is saved in a file, we know to which solver the sent preferences apply. Closes: 823918
2016-05-10update: Run Post-Invoke-Success if not all sources failedJulian Andres Klode
Failures can happen and APT regardless will do a partial cache update anyway. Because APT ensures that the list directory is in a sane state, it makes sense to also call success hooks if success was only partial - otherwise it loses sync with APT. Most importantly, this causes the appstream cache to be empty, see launchpad bug #1562733. This is somewhat overly optimistic though: As soon as any repository has nonexisting optional files, the missing optional files are also treated as success, which means a single broken repository without an InRelease file still runs Success hooks, even though it really should not.
2016-05-10Strip trailing commas for created signed-by fingerprint listsJulian Andres Klode
This prevented some sources.list entries from working, an example of which can be found in the test.
2016-05-10Merge pull request julian-klode/apt#3 from adrian17/masterJulian Andres Klode
Improve GetLocalitySortedVersionSet, speeds up apt search by 30%
2016-05-10don't sent uninstallable rc-only versions via EDSPDavid Kalnischkies
Versions which are only available in dpkg/status aren't installable and apt doesn't pick them as candidate for this reason – for the same reason such packages shouldn't be sent to an external solver via EDSP. The packages are pinned to -1, but if the solver has strict pinning disabled it could end up picking this version anyhow – which is a request apt can not satisfy. Reported-By: Maximiliano Curia <maxy@debian.org> on IRC
2016-05-08implement Identifier field for IndexTargetsDavid Kalnischkies
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.
2016-05-08implement Fallback-Of for IndexTargetsDavid Kalnischkies
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.
2016-05-07download arch:all also for NATIVE_ARCHITECTURE indextargetsDavid Kalnischkies
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.
2016-05-07don't construct MetaIndex acquire items with IndexTargetsDavid Kalnischkies
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
2016-05-07delay progress until Release files are downloadedDavid Kalnischkies
Progress reporting used an "upper bound" on files we might get, expect that this wasn't correct in case pdiff entered the picture. So instead of calculating a value which is perhaps incorrect, we just accept that we can't tell how many files we are going to download and just keep at 0% until we know. Additionally, if we have pdiffs we wait until we got these (sub)index files, too. That could all be done better by downloading all Release files first and planing with them in hand accordingly, but one step at a time.
2016-05-07TransactionManager can never be a nullptrDavid Kalnischkies
The code naturally evolved from a TransactionManager optional to a required setup which resulted in various places doing unneeded checks suggesting a more complicated setup than is actually needed. Git-Dch: Ignore
2016-05-07fix same-mirror redirection for Release{,.gpg} pairDavid Kalnischkies
Commit 9b8034a9fd40b4d05075fda719e61f6eb4c45678 just deals with InRelease properly and generates broken URIs in case the mirror (or the achieve really) has no InRelease file. [As this was in no released version no need to clutter changelog with a fix notice.] Git-Dch: Ignore
2016-05-03allow redirection for items without a space in the desc againDavid Kalnischkies
Broken in a4b8112b19763cbd2c12b81d55bc7d43a591d610. If an item has a description which includes no space and is redirected to another mirror the code which wants to rewrite the description expects a space in there, but can't find it and the unguarded substr command on the string will fail with an exception thrown… Guarding it properly and everything is fine.
2016-05-03let DPKG_COLORS default to our APT::Color settingDavid Kalnischkies
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.
2016-05-03remove 100-levels config nesting limitDavid Kalnischkies
The actual reason for this commit isn't the limit – there isn't much point in using that much nesting – its in shutting up gcc mostly: apt/apt-pkg/contrib/configuration.cc: In function ‘bool ReadConfigFile(Configuration&, const string&, const bool&, const unsigned int&)’: apt/apt-pkg/contrib/configuration.cc:686:20: warning: cannot optimize loop, the loop counter may overflow [-Wunsafe-loop-optimizations] string Stack[100]; ^ by replacing this with C++s handy std::stack container (adapter). Also cleans some whitespace noise from the file in the process.
2016-05-01Don't copy strings in Startswith, EndswithAdrian Wielgosik
2016-05-01support Signed-By in Release files as a sort of HPKPDavid Kalnischkies
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.
2016-05-01support multiple fingerprints in signed-byDavid Kalnischkies
A keyring file can include multiple keys, so its only fair for transitions and such to support multiple fingerprints as well.
2016-05-01don't show NO_PUBKEY warning if repo is signed by another keyDavid Kalnischkies
Daniel Kahn Gillmor highlights in the bugreport that security isn't improving by having the user import additional keys – especially as importing keys securely is hard. The bugreport was initially about dropping the warning to a notice, but in given the previously mentioned observation and the fact that we weren't printing a warning (or a notice) for expired or revoked keys providing a signature we drop it completely as the code to display a message if this was the only key is in another path – and is considered critical. Closes: 618445
2016-05-01show StateCache flags in Pkg debug prettyprintDavid Kalnischkies
This basically introduces ~33 flags in the output, but a package can have only ~11 of them displayed at the same time. There is quiet a bit of duplication also (an uninstalled package is by definition a newinstall if its getting installed), but as this is debug output we are better of showing them all in case one of them isn't set in a way it is supposed to be set. Git-Dch: Ignore
2016-04-28deb822: Restore support for <multivalue>-{Add,Remove}James McCoy
Redesign of multivalue options in 463c8d801595ce5ac94d7c032264820be7434232 caused the parser to look for <multivalue>{Add,Remove} (no hyphen) instead of the expected <multivalue>-{Add,Remove}.
2016-04-28factor out Pkg/DepIterator prettyprinters into own headerDavid Kalnischkies
The old prettyprinters have only access to the struct they pretty print, which isn't enough usually as we want to know for a package also a bit of state information like which version is the candidate. We therefore need to pull the DepCache into context and hence use a temporary struct which is printed instead of the iterator itself.
2016-04-28deprecate confusing Pkg.CandVersion() methodDavid Kalnischkies
This method does not return the 'current' candidate of the DepCache which would be most expected, but instead returns the version which would be candidate in a default-only policy setting – aka ignoring apt_preferences settings and co.
2016-04-28respect user pinning in M-A:same version (un)screwingDavid Kalnischkies
Using Pkg.CandVersion() here is wrong as its implementation will return a candidate based just on the default policy settings ignoring user preferences and otherwise set candidates (aka: it sidesteps the pkgDepCache). This causes M-A:same libraries to be detected as screwed even through they aren't, so that they end up being kept back. Reported-By: Felipe Sateler on IRC
2016-04-28FileFd: avoid further writing if file failedDavid Kalnischkies
If the file is in a failed state there is no point in trying to flush out the buffers as the file is to be discarded anyhow & its likely all this flushing is producing is additional error messages. Git-Dch: Ignore
2016-04-25policy: Remove TODO for replacing old GetCandidateVer()Julian Andres Klode
Gbp-Dch: ignore
2016-04-25policy: Get rid of old (pre-1.1) GetCandidateVer algorithmJulian Andres Klode
Bye bye old friend. You're in one Ubuntu LTS release for compat testing, now we do not need you anymore.
2016-04-25restore pinning to min/max value of shortDavid Kalnischkies
Broken in the previous commit (69cea1ef2cfda3c4da79fd756a8edaf2be26998e). Adding a test and a comment to avoid future embarrassment. Git-Dch: Ignore Reported-By: Julian Andres Klode on IRC
2016-04-25give rc-status packages a pin of -1David Kalnischkies
It would previously return a pin of 0, which is an invalid value, but the intend is that versions which are only in the dpkg/status file can't be selected for installation (= can't be a candidate) which is what a negative pin assures. This helps with the communication to EDSP solvers as they neither know about the rc-state (yet) nor that they shouldn't choose this version. Ideally they shouldn't be told about such versions at all as there is nothing to be solved here, but we will get there eventually.
2016-04-25edsp: ask policy engine for the pin of the version directlyDavid Kalnischkies
2016-04-25use the same redirection mirror for all index filesDavid Kalnischkies
Redirection services like httpredir.debian.org tend to use a set of mirrors from which they pick a mirror at "random" for each requested file, which is usually benefitial for the download of debs, but for the index files this can quickly cause problems (aka hashsum mismatches) if the two (or more) mirrors involved are only slightly out-of-sync. This commit "resolves" this issue by using the mirror we ended up using to get the (signed) Release file directly to get the index files belonging to this Release file instead of asking the redirection service which eliminates the risk of hitting out-of-sync mirrors. As an obvious downside the redirection service can't serve partial mirrors anymore for indexes and the download of indexes indexed in the same Release file can't be done in parallel (from different mirrors). This does not effect the download of non-index files like deb-files as out-of-sync mirrors aren't a huge problem there, so the parallel download outweights a potentially 404 error (also because this causes no errenous downloads while hashsum mismatches download the entire file before finding out that it was pointless). The rational for this is that indexes are relative to the Release file. If we would be talking about a HTML page including images, such a behaviour is obvious and intended – not doing it means in the best case a bunch of "useless" requests which will all be answered with a redirect.
2016-04-25show more details for "Writing more data" errors, tooDavid Kalnischkies
They are the small brothers of the hashsum mismatch, so they deserve a similar treatment even through we have for architectual reasons not a much to display as for hashsum mismatches for now.
2016-04-25show more details for "Hash Sum mismatch" errorsDavid Kalnischkies
Users tend to report these errors with just this error message… not very actionable and hard to figure out if this is a temporary or 'permanent' mirror-sync issue or even the occasional apt bug. Showing the involved hashsums and modification times should help in triaging these kind of bugs – and eventually we will have less of them via by-hash. The subheaders aren't marked for translation for now as they are technical glibberish and probably easier to deal with if not translated. After all, our iconic "Hash Sum mismatch" is translated at least. These additions were proposed in #817240 by Peter Palfrader.
2016-04-25properly format multiline error messagesDavid Kalnischkies
2016-04-25sanify unused ReportMirrorFailure a tiny bitDavid Kalnischkies
Calling the (non-existent) reporter multiple times for the same error with different codes for the same error (e.g. hashsum) is a bit strange. It also doesn't need to be a public API. Ideally that would all look and behave slightly different, but we will worry about that at the time this is actually (planed to be) used somewhere… Git-Dch: Ignore
2016-04-25make random acquire queues work less randomDavid Kalnischkies
Queues feeding workers like rred are created in a random pattern to get a few of them to run in parallel – but if we already have an idling queue we don't need to assign it to a (potentially new) random queue as that saves us the (agruably small) overhead of starting up a new queue, avoids adding jobs to an already busy queue while others idle and as a bonus reduces the size of debug logs a bit. We also keep starting new queues now until we reach our limit before we assign work at random to them, which should give us a more effective utilisation overall compared to potentially adding work to busy queues while we haven't reached our queue limit yet.
2016-04-14ensure outdated files are dropped without lists-cleanupDavid Kalnischkies
Tested via (newly) empty index files, but effects also files dropped from the repository or an otherwise changed repository config.
2016-04-14silently skip acquire of empty index filesDavid Kalnischkies
There is just no point in taking the time to acquire empty files – especially as it will be tiny non-empty compressed files usually.
2016-04-14fix Alt-Filename handling of file methodDavid Kalnischkies
A silly of-by-one error in the stripping of the extension to check for the uncompressed filename broken in an attempt to support all compressions in commit a09f6eb8fc67cd2d836019f448f18580396185e5. Fixing this highlights also mistakes in the handling of the Alt-Filename in libapt which would cause apt to remove the file from the repository (if root has the needed rights – aka the disk isn't readonly or similar)
2016-04-13recheck Pre-Depends satisfaction in SmartConfigureDavid Kalnischkies
Regression introduced in commit 590f1923121815b36ef889033c1c416a23cbe9a2 (2011!) causing apt to not check if Pre-Depends are satisfied before calling --configure. This managed to hide so perfectly well for years as Pre-Depends aren't that common, apt prefers upgrading these packages first and checks for satisfaction is already in SmartUnpack, so there is only a small window of oppertunity to break a pre-dependency relation (usually with an unpack). Verified by logchecking with two provided status files in the buglog. I would have liked to write a test, but I wasn't able to reach the needed complexity to get apt to fail – but the change is small and reasonable, so what could possible go wrong™, right? LP: #1569099
2016-04-13detect compressed status files on extension againDavid Kalnischkies
It handy to be able to point apt at reading a compressed dpkg/status file in debugging cases, which worked pre-1.1 but somewhere down the line in the massive refactoring. Restoring this behavior in a central place for all realfile index files instead of just for the status file. (This has no effect on index files acquired from an archive – those are handled by different classes and support compressed files just fine)
2016-04-13do not require non-broken systems in 'upgrade'David Kalnischkies
There is a good chance that the attempt will fail, but if a user mentions certain packages explicitly on the commandline there is a chance that this will consist of a broken system which is resolved by upgrading more packages then just the mentioned. This limitation was not effecting external resolvers.
2016-04-07stop handling items in doomed transactionsDavid Kalnischkies
With the previous commit we track the state of transactions, so we can now use our knowledge to avoid processing data for a transaction which was already closed (via an abort in this case). This is needed as multiple independent processes are interacting in the process, so there isn't a simple immediate full-engine stop and it would also be bad to teach each and every item how to check if its manager has failed subordinate and what to do in that case. In the pdiff case, which deals (potentially) with many items during its lifetime e.g. a hashsum mismatch in another file can abort the transaction the file we try to patch via pdiff belongs to. This causes some of the items (which are already done) to be aborted with it, but items still in the process of acquisition continue in the processing and will later try to use all the items together failing in strange ways as cleanup already happened. The chosen solution is to dry up the communication channels instead by ignoring new requests for data acquisition, canceling requests which are not assigned to a queue and not calling Done/Failed on items anymore. This means that e.g. already started or pending (e.g. pipelined) downloads aren't stopped and continue as normal for now, but they remain in partial/ and aren't processed further so the next update command will pick them up and put them to good use while the current process fails updating (for this transaction group) in an orderly fashion. Closes: 817240 Thanks: Barr Detwix & Vincent Lefevre for log files
2016-04-07ensure transaction states are changed only onceDavid Kalnischkies
We want to keep track of the state of a transaction overall to base future decisions on it, but as a pre-requirement we have to make sure that a transaction isn't commited twice (which happened if the download of InRelease failed and Release takes over). It also happened to create empty commits after a transaction was already aborted in cases in which the Release files were rejected. This isn't effecting security at the moment, but to ensure this isn't happening again and can never be bad a bunch of fatal error messages are added to make regressions on this front visible.
2016-04-03don't leak on error in listparser creationDavid Kalnischkies
Git-Dch: Ignore Reported-By: gcc -fsanitize=address
2016-04-03use buffered writing for InRelease splittingDavid Kalnischkies
Hardly noticeable, but given that we have the option to easily enable it, lets enable it as every newline in the message is written individually by the code.