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AgeCommit message (Collapse)Author
2018-02-06Fixed system() using coolstar's patch and added other required patchesJaywalker
2017-01-29The entire concept of PendingError() is flawed :/.Jay Freeman (saurik)
2016-12-30My "tolerance" patch was a tad bit overzealous :(.Jay Freeman (saurik)
2016-12-29In the C locale, let's avoid any crazy transforms.Jay Freeman (saurik)
2016-12-26Wreck validation until we can assess ecosystem :/.Jay Freeman (saurik)
2016-12-25This is 2016 and APT already requires use of mmap.Jay Freeman (saurik)
2016-12-23Only check for valid Date if checking Valid-Until.Jay Freeman (saurik)
2016-11-30I know this is "bad", but a "full wedge" is worse.Jay Freeman (saurik)
2016-11-30The fastest way to get field values is as a range.Jay Freeman (saurik)
2016-11-29Avoid wedging the entire system if recoverable :/.Jay Freeman (saurik)
2016-11-29Most interfaces (Maemo) need a high-level name :/.Jay Freeman (saurik)
2016-11-29Store tags in the cache (they are very useful :/).Jay Freeman (saurik)
2016-11-29unlinkat is way way too modern to not autoconf :/.Jay Freeman (saurik)
2016-11-29std::map from std::initializer_list is "explicit".Jay Freeman (saurik)
2016-11-24skip unconfigure for unconfigured to-be removed pkgsDavid Kalnischkies
2016-11-24do not configure unconfigured to be removed packagesDavid Kalnischkies
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
2016-11-24don't perform implicit crossgrades involving M-A:sameDavid Kalnischkies
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.
2016-11-24improve arch-unqualified dpkg-progress parsingDavid Kalnischkies
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.
2016-11-23correct cross & disappear progress detectionDavid Kalnischkies
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…
2016-11-23react to trig-pend only if we have nothing else to doDavid Kalnischkies
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…
2016-11-22Do not use MD5SumValue for Description_md5()Julian Andres Klode
Our profile says we spend about 5% of the time transforming the hex digits into the binary format used by HashsumValue, all for comparing them against the other strings. That makes no sense at all. According to callgrind, this reduces the overall instruction count from 5,3 billion to 5 billion in my example, which roughly matches the 5%.
2016-11-22debListParser: Micro-optimize AvailableDescriptionLanguages()Julian Andres Klode
Generating a string for each version we see is somewhat inefficient. The problem here is that the Description tag names are longer than 15 byte, and thus require an allocation on the heap, which we should avoid. It seems reasonable that 20 characters works for all languages codes used for archive descriptions, but if not, there's a warning, so we'll catch that. This should improve performance by about 2%.
2016-11-22Optimize VersionHash() to not need temporary copy of inputJulian Andres Klode
Stop copying stuff, and just parse the bytes one by-one to the newly created AddCRC16Byte. This improves the instruction count for an update run from 720,850,121 to 455,801,749 according to callgrind.
2016-11-22Introduce tolower_ascii_unsafe() and use it for hashingJulian Andres Klode
This one has some obvious collisions for non-alphabetical characters, like some control characters also hashing to numbers, but we don't really have those, and these are hash functions which are not collision free to begin with.
2016-11-22debListParser: Convert to use pkgTagSection::Key-based lookupJulian Andres Klode
This basically gets rid of 40-50% of the hash table lookups, making things a bit faster that way, and the profiles look far cleaner.
2016-11-11add hidden config to set packages as Essential/ImportantDavid Kalnischkies
You can pretty much achieve the same with a local dummy package if you want to, but libapt has an inbuilt setting for essential: "apt" which can be overridden with this option as well – it could be helpful in quick tests and what not so adding this alternative shouldn't really hurt much. We aren't going to document them much through as care must be taken in regards to the binary caches as they aren't invalidated by config options alone, so the effects of old settings could still be in them, similar to the other already existing pkgCacheGen option(s). Closes: 767891 Thanks: Anthony Towns for initial patch
2016-11-09add support for Build-Depends/Conflicts-ArchJohannes Schauer
These new enum values might cause "interesting" behaviour in tools not expecting them – like an old apt would think a Build-Conflicts-Arch is some sort of Build-Depends – but that can't reasonably be avoided and effects only packages using B-D/C-A so if there is any breakage the tools can easily be adapted. The APT_PKG_RELEASE number is increased so that libapt users can detect the availability of these new enum fields via: #if APT_PKG_ABI > 500 || (APT_PKG_ABI == 500 && APT_PKG_RELEASE >= 1) Closes: #837395
2016-09-18VersionHash: Do not skip too long dependency linesJulian Andres Klode
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
2016-08-31Fix segfault and out-of-bounds read in Binary fieldsJulian Andres Klode
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
2016-08-27Merge branch 'portability/freebsd'Julian Andres Klode
2016-08-26Make directory paths configurableJulian Andres Klode
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 /.
2016-08-26Add missing includes and external definitionsJulian Andres Klode
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.
2016-08-25treat .ddeb files like .deb, especially for dpkgDavid Kalnischkies
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
2016-08-24do not restore selections for already purged packagesDavid Kalnischkies
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
2016-08-23do dpkg --configure before --remove/--purge --pendingDavid Kalnischkies
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
2016-08-19Ignore SIGINT and SIGQUIT for Pre-Install hooksJulian Andres Klode
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
2016-08-17add --with-source option and Packages/Sources supportDavid Kalnischkies
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.
2016-08-17default to Dir=/ in dpkg/status file finding magicDavid Kalnischkies
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
2016-08-10disable explicit configuration of all packages at the endDavid Kalnischkies
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.
2016-08-10simulate all package manager actions explicitlyDavid Kalnischkies
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.
2016-08-10try to avoid removal of crossgraded packagesDavid Kalnischkies
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.
2016-08-10ensure all removes are reported to hook scriptsDavid Kalnischkies
Same reason and implementation as for configure.
2016-08-10ensure all configures are reported to hook scriptsDavid Kalnischkies
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.
2016-08-10don't purge directly, but remove and do purge at the endDavid Kalnischkies
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.
2016-08-10call dpkg with --no-triggers by defaultDavid Kalnischkies
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
2016-08-10select remove/purge packages early on for dpkgDavid Kalnischkies
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.
2016-08-10save and restore selection states before/after calling dpkgDavid Kalnischkies
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.
2016-08-10use dpkg --unpack --recursive to avoid long cmdlinesDavid Kalnischkies
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.
2016-08-10pass --force-remove-essential to dpkg only if neededDavid Kalnischkies
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.
2016-08-10Merge branch 'cmake'Julian Andres Klode