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2016-12-31ensure generation of valid EDSP error stanzasDavid Kalnischkies
The crude way of preparing a message to be a multiline value failed at generation valid deb822 in case the error message ended with a new line like the resolving errors from apt do. apt itself can parse these, but other tools like grep-dctrl choke on it, so be nice and print valid. Reported-By: Johannes 'josch' Schauer on IRC
2016-09-07edsp: try 2 to read responses even if writing failedDavid Kalnischkies
Commit b60c8a89c281f2bb945d426d2215cbf8f5760738 improved the situation, but due to inconsistency mostly for planners, not for solvers. As the idea of hiding errors if we show another error is a bit scary (as the extern error might be a followup of our intern error, rather than the reason for our intern error as it is at the moment) we don't discard the errors, but if we got an extern error we show them directly removing them from the error list at the end of the run – that list will contain the extern error which hopefully gives us the best of both worlds. The problem itself is the same as before: The externals exiting before apt is done talking to them. Reported-By: Johannes 'josch' Schauer on IRC
2016-08-26Always pass a directory to find before an optionJulian Andres Klode
On BSD systems, we cannot simply use find -name or stuff, we always have to pass a directory name first. Gbp-Dch: ignore
2016-08-26test: Use printf "%b\n" instead of echo for strings with '\'Julian Andres Klode
Use of echo with special characters is not portable. On a normal POSIX system, the behavior with backslash escaped strings is implementation-defined. On an XSI-conformant system, they must be interpreted. A way out is the printf command - printf "%b" specifies that the following argument is to be printed with backslash escapes interpreted. Gbp-Dch: ignore
2016-06-08edsp: optionally store a compressed copy of the last scenarioDavid Kalnischkies
For bugreports and co it could be handy to have the scenario and all the settings used in it around later for inspection for EDSP like protocols. EDSP might not be the most interesting as the user can still interrupt the process before the solution is applied and users tend to have an opinion on the "rightness" of a solution, so it is disabled by default.
2016-06-04edsp: use an ID mapping for the internal solverDavid Kalnischkies
Currently an EDSP solver gets send basically all versions which means the absolute count is the same, but that might not be true forever (and with the skipping of rc-only versions it kinda is already) and even if it were true, segfaulting on bad input seems wrong.
2016-05-20refactor EDSP code into EDSP and EDSP-like partsDavid Kalnischkies
No real code change, just moving code around heavily to decouple the EDSP specific parts from those we can reuse for EDSP-like protocols. Git-Dch: Ignore
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.
2016-03-06tests: expect no output while compiling noopchrootDavid Kalnischkies
This way we hopefully notice (new) warnings in this little helper. Git-Dch: Ignore
2015-12-19tests: support spaces in path and TMPDIRDavid Kalnischkies
This doesn't allow all tests to run cleanly, but it at least allows to write tests which could run successfully in such environments. Git-Dch: Ignore
2015-11-19tests: use quiet level 0 by default in testsDavid Kalnischkies
Git-Dch: Ignore
2015-11-04support arch:all data e.g. in separate Packages fileDavid Kalnischkies
Based on a discussion with Niels Thykier who asked for Contents-all this implements apt trying for all architecture dependent files to get a file for the architecture all, which is treated internally now as an official architecture which is always around (like native). This way arch:all data can be shared instead of duplicated for each architecture requiring the user to download the same information again and again. There is one problem however: In Debian there is already a binary-all/ Packages file, but the binary-any files still include arch:all packages, so that downloading this file now would be a waste of time, bandwidth and diskspace. We therefore need a way to decide if it makes sense to download the all file for Packages in Debian or not. The obvious answer would be a special flag in the Release file indicating this, which would need to default to 'no' and every reasonable repository would override it to 'yes' in a few years time, but the flag would be there "forever". Looking closer at a Release file we see the field "Architectures", which doesn't include 'all' at the moment. With the idea outlined above that 'all' is a "proper" architecture now, we interpret this field as being authoritative in declaring which architectures are supported by this repository. If it says 'all', apt will try to get all, if not it will be skipped. This gives us another interesting feature: If I configure a source to download armel and mips, but it declares it supports only armel apt will now print a notice saying as much. Previously this was a very cryptic failure. If on the other hand the repository supports mips, too, but for some reason doesn't ship mips packages at the moment, this 'missing' file is silently ignored (= that is the same as the repository including an empty file). The Architectures field isn't mandatory through, so if it isn't there, we assume that every architecture is supported by this repository, which skips the arch:all if not listed in the release file.
2015-11-04sanify API to get 'the' candidate versionDavid Kalnischkies
This was discussed a while ago on #debian-apt and now that I see myself making this mistake lets bite the bullet and fix it in the easy way out version: Using a new name which fits with a similar named setter and deprecate the old method instead of 'hostily' changing API. Closes: #803471
2015-11-04suggest 'apt autoremove' to get right of unneeded packagesDavid Kalnischkies
The bugreport is more conservative in asking for a conditional, but given that this is a message intended to be read by users to be run by users we should suggest using a command intended to be used by users. And while we are at, add sudo to the message – conditional of course. Closes: 801571
2015-09-14various changes to increase test-coverageDavid Kalnischkies
And of course, testing obscure things ends up showing obscure 'bugs' or better shortcomings/inconsitencies, so lets fix them with the tests. Git-Dch: Ignore
2015-09-14implement autobit and pinning in EDSP solver 'apt'David Kalnischkies
The parser creates a preferences as well as an extended states file based on the EDSP scenario file, which isn't the most efficient way of dealing with this as thes text files have to be parsed again by another layer of the code, but it needs the least changes and works good enough for now. The 'apt' solver is in the end just a test solver like dump.
2015-09-14fix insecure use of /tmp in EDSP solver 'dump'David Kalnischkies
As said in the bugreport, this is hardly a serious problem on a security front, but it was always on the list to have the filename configurable somehow and the stable filename is a problem for parallel executions. Using an environment variable (APT_EDSP_DUMP_FILENAME) for this is more or less the best we can do here as solvers do not get told about our configuration and such. Closes: 795600
2015-09-14add Source-Version field for EDSPDavid Kalnischkies
The syntax of "Source" is different in EDSP compared to the the field of the same name in 'the rest' of Debian, so documented this accordingly and send the version as a new field.
2015-09-14implement dpkgs vision of interpreting pkg:<arch> dependenciesDavid Kalnischkies
How the Multi-Arch field and pkg:<arch> dependencies interact was discussed at DebConf15 in the "MultiArch BoF". dpkg and apt (among other tools like dose) had a different interpretation in certain scenarios which we resolved by agreeing on dpkg view – and this commit realizes this agreement in code. As was the case so far libapt sticks to the idea of trying to hide MultiArch as much as possible from individual frontends and instead translates it to good old SingleArch. There are certainly situations which can be improved in frontends if they know that MultiArch is upon them, but these are improvements – not necessary changes needed to unbreak a frontend. The implementation idea is simple: If we parse a dependency on foo:amd64 the dependency is formed on a package 'foo:amd64' of arch 'any'. This package is provided by package 'foo' of arch 'amd64', but not by 'foo' of arch 'i386'. Both of those foo packages provide each other through (assuming foo is M-A:foreign) to allow a dependency on 'foo' to be satisfied by either foo of amd64 or i386. Packages can also declare to provide 'foo:amd64' which is translated to providing 'foo:amd64:any' as well. This indirection over provides was chosen as the alternative would be to teach dependency resolvers how to deal with architecture specific dependencies – which violates the design idea of avoiding resolver changes, especially as architecture-specific dependencies are a cornercase with quite a few subtil rules. Handling it all over versioned provides as we already did for M-A in general seems much simpler as it just works for them. This switch to :any has actually a "surprising" benefit as well: Even frontends showing a package name via .Name() [which doesn't show the architecture] will display the "architecture" for dependencies in which it was explicitely requested, while we will not show the 'strange' :any arch in FullName(true) [= pretty-print] either. Before you had to specialcase these and by default you wouldn't get these details shown. The only identifiable disadvantage is that this complicates error reporting and handling. apt-get's ShowBroken has existing problems with virtual packages [it just shows the name without any reason], so that has to be worked on eventually. The other case is that detecting if a package is completely unknown or if it was at least referenced somewhere needs to acount for this "split" – not that it makes a practical difference which error is shown… but its one of the improvements possible.
2015-03-16test exitcode as well as string equalityDavid Kalnischkies
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
2014-11-18various small additional tests and testcasesDavid Kalnischkies
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
2014-06-18do not call resolver twice on (dist-)upgradeDavid Kalnischkies
2014-06-11fix autopkgtest testsMichael Vogt
2014-05-30support parsing EDSP requests Architecture{,s} stanzaDavid Kalnischkies
Adds also a small testcase for EDSP Git-Dch: Ignore