9 libsolv-bindings - access libsolv from perl/python/ruby
14 Libsolv's language bindings offer an abstract, object orientated interface
15 to the library. The supported languages are currently perl, python, and ruby.
16 All example code (except in the specifics sections, of course) lists first
17 the ``C-ish'' interface, then the syntax for perl, python, and ruby (in that
23 Libsolv's perl bindings can be loaded with the following statement:
27 Objects are either created by calling the new() method on a class or they
28 are returned by calling methods on other objects.
30 my $pool = solv::Pool->new();
31 my $repo = $pool->add_repo("my_first_repo");
33 Swig encapsulates all objects as tied hashes, thus the attributes can be
34 accessed by treating the object as standard hash reference:
36 $pool->{appdata} = 42;
37 printf "appdata is %d\n", $pool->{appdata};
39 A special exception to this are iterator objects, they are encapsulated as
40 tied arrays so that it is possible to iterate with a for() statement:
42 my $iter = $pool->solvables_iter();
43 for my $solvable (@$iter) { ... };
45 As a downside of this approach, iterator objects cannot have attributes.
47 If an array needs to be passed to a method it is usually done by reference,
48 if a method returns an array it returns it on the stack:
50 my @problems = $solver->solve(\@jobs);
52 Due to a bug in swig, stringification does not work for libsolv's objects.
53 Instead, you have to call the object's str() method.
55 print $dep->str() . "\n";
57 Swig implements all constants as numeric variables (instead of the more
58 natural constant subs), so don't forget the leading ``$'' when accessing a
59 constant. Also do not forget to prepend the namespace of the constant:
61 $pool->set_flag($solv::Pool::POOL_FLAG_OBSOLETEUSESCOLORS, 1);
66 The python bindings can be loaded with:
70 Objects are either created by calling the constructor method for a class or they
71 are returned by calling methods on other objects.
74 repo = pool.add_repo("my_first_repo")
76 Attributes can be accessed as usual:
79 print "appdata is %d" % (pool.appdata)
81 Iterators also work as expected:
83 for solvable in pool.solvables_iter():
85 Arrays are passed and returned as list objects:
88 problems = solver.solve(jobs)
90 The bindings define stringification for many classes, some also have a
91 __repr__ method to ease debugging.
96 Constants are attributes of the classes:
98 pool.set_flag(solv.Pool.POOL_FLAG_OBSOLETEUSESCOLORS, 1);
103 The ruby bindings can be loaded with:
107 Objects are either created by calling the new method on a class or they
108 are returned by calling methods on other objects. Note that all classes start
109 with an uppercase letter in ruby, so the class is called ``Solv''.
111 pool = Solv::Pool.new
112 repo = pool.add_repo("my_first_repo")
114 Attributes can be accessed as usual:
117 puts "appdata is #{pool.appdata}"
119 Iterators also work as expected:
121 for solvable in pool.solvables_iter() do ...
123 Arrays are passed and returned as array objects:
126 problems = solver.solve(jobs)
128 Most classes define a to_s method, so objects can be easily stringified.
129 Many also define an inspect() method.
134 Constants live in the namespace of the class they belong to:
136 pool.set_flag(Solv::Pool::POOL_FLAG_OBSOLETEUSESCOLORS, 1);
138 Note that boolean methods have an added trailing ``?'', to be consistent with
141 puts "empty repo" if repo.isempty?
146 This is the main namespace of the library, you cannot create objects of this
147 type but it contains some useful constants.
151 Relational flag constants, the first three can be or-ed together
154 the ``less than'' bit
157 the ``equals to'' bit
160 the ``greater then'' bit
163 used for relations that describe an extra architecture filter, the
164 version part of the relation is interpreted as architecture.
169 Access the meta section of a repository or repodata area. This is
170 like an extra Solvable that has the Id SOLVID_META.
173 Use the data position stored inside of the pool instead of accessing
174 some solvable by Id. The bindings have the Datapos objects as an
175 abstraction mechanism, so you do not need this constant.
183 Always one, describes the empty string
186 The keyname Id of the name of the solvable.
189 see the libsolv-constantids manpage for a list of fixed Ids.
194 The pool is libsolv's central resource manager. A pool consists of Solvables,
195 Repositories, Dependencies, each indexed by Ids.
197 === CLASS METHODS ===
200 my $pool = solv::Pool->new();
202 pool = Solv::Pool.new()
204 Create a new pool instance. In most cases you just need
209 void *appdata; /* read/write */
214 Application specific data that may be used in any way by the code using the
217 Solvable solvables[]; /* read only */
218 my $solvable = $pool->{solvables}->[$solvid];
219 solvable = pool.solvables[solvid]
220 solvable = pool.solvables[solvid]
222 Look up a Solvable by its id.
224 Repo repos[]; /* read only */
225 my $repo = $pool->{repos}->[$repoid];
226 repo = pool.repos[repoid]
227 repo = pool.repos[repoid]
229 Look up a Repository by its id.
231 Repo *installed; /* read/write */
232 $pool->{installed} = $repo;
233 pool.installed = repo
234 pool.installed = repo
236 Define which repository contains all the installed packages.
238 const char *errstr; /* read only */
239 my $err = $pool->{errstr};
243 Return the last error string that was stored in the pool.
247 *POOL_FLAG_PROMOTEEPOCH*::
248 Promote the epoch of the providing dependency to the requesting
249 dependency if it does not contain an epoch. Used at some time
250 in old rpm versions, modern systems should never need this.
252 *POOL_FLAG_FORBIDSELFCONFLICTS*::
253 Disallow the installation of packages that conflict with themselves.
254 Debian always allows self-conflicting packages, rpm used to forbid
255 them but switched to also allowing them recently.
257 *POOL_FLAG_OBSOLETEUSESPROVIDES*::
258 Make obsolete type dependency match against provides instead of
259 just the name and version of packages. Very old versions of rpm
260 used the name/version, then it got switched to provides and later
261 switched back again to just name/version.
263 *POOL_FLAG_IMPLICITOBSOLETEUSESPROVIDES*::
264 An implicit obsoletes is the internal mechanism to remove the
265 old package on an update. The default is to remove all packages
266 with the same name, rpm-5 switched to also removing packages
267 providing the same name.
269 *POOL_FLAG_OBSOLETEUSESCOLORS*::
270 Rpm's multilib implementation (used in RedHat and Fedora)
271 distinguishes between 32bit and 64bit packages (the terminology
272 is that they have a different color). If obsoleteusescolors is
273 set, packages with different colors will not obsolete each other.
275 *POOL_FLAG_IMPLICITOBSOLETEUSESCOLORS*::
276 Same as POOL_FLAG_OBSOLETEUSESCOLORS, but used to find out if
277 packages of the same name can be installed in parallel. For
278 current Fedora systems, POOL_FLAG_OBSOLETEUSESCOLORS should be
279 false and POOL_FLAG_IMPLICITOBSOLETEUSESCOLORS should be true
280 (this is the default if FEDORA is defined when libsolv is compiled).
282 *POOL_FLAG_NOINSTALLEDOBSOLETES*::
283 New versions of rpm consider the obsoletes of installed packages
284 when checking for dependency, thus you may not install a package
285 that is obsoleted by some other installed package, unless you
286 also erase the other package.
288 *POOL_FLAG_HAVEDISTEPOCH*::
289 Mandriva added a new field called distepoch that gets checked in
290 version comparison if the epoch/version/release of two packages
293 *POOL_FLAG_NOOBSOLETESMULTIVERSION*::
294 If a package is installed in multiversionmode, rpm used to ignore
295 both the implicit obsoletes and the obsolete dependency of a
296 package. This was changed to ignoring just the implicit obsoletes,
297 thus you may install multiple versions of the same name, but
298 obsoleted packages still get removed.
300 *POOL_FLAG_ADDFILEPROVIDESFILTERED*::
301 Make the addfileprovides method only add files from the standard
302 locations (i.e. the ``bin'' and ``etc'' directories). This is
303 useful if you have only few packages that use non-standard file
304 dependencies, but you still wand the fast speed that addfileprovides()
314 Free a pool. This is currently done with a method instead of relying on
315 reference counting or garbage collection because it's hard to track every
318 void setdebuglevel(int level)
319 $pool->setdebuglevel($level);
320 pool.setdebuglevel(level)
321 pool.setdebuglevel(level)
323 Set the debug level. A value of zero means no debug output, the higher the
324 value, the more output is generated.
326 int set_flag(int flag, int value)
327 my $oldvalue = $pool->set_flag($flag, $value);
328 oldvalue = pool.set_flag(flag, value)
329 oldvalue = pool.set_flag(flag, value)
331 int get_flag(int flag)
332 my $value = $pool->get_flag($flag);
333 value = pool.get_flag(flag)
334 value = pool.get_flag(flag)
336 Set/get a pool specific flag. The flags define how the system works, e.g. how
337 the package manager treats obsoletes. The default flags should be sane for most
338 applications, but in some cases you may want to tweak a flag, for example if
339 you want to solv package dependencies for some other system than yours.
341 void set_rootdir(const char *rootdir)
342 $pool->set_rootdir(rootdir);
343 pool.set_rootdir(rootdir)
344 pool.set_rootdir(rootdir)
346 const char *get_rootdir()
347 my $rootdir = $pool->get_rootdir();
348 rootdir = pool.get_rootdir()
349 rootdir = pool.get_rootdir()
351 Set/get the rootdir to use. This is useful if you want package management
352 to work only in some directory, for example if you want to setup a chroot
353 jail. Note that the rootdir will only be prepended to file paths if the
354 *REPO_USE_ROOTDIR* flag is used.
356 void setarch(const char *arch = 0)
361 Set the architecture for your system. The architecture is used to determine
362 which packages are installable. It defaults to the result of ``uname -m''.
364 Repo add_repo(const char *name)
365 $repo = $pool->add_repo($name);
366 repo = pool.add_repo(name)
367 repo = pool.add_repo(name)
369 Add a Repository with the specified name to the pool. The repository is empty
370 on creation, use the repository methods to populate it with packages.
372 Repoiterator repos_iter()
373 for my $repo (@{$pool->repos_iter()})
374 for repo in pool.repos_iter():
375 for repo in pool.repos_iter()
377 Iterate over the existing repositories.
379 Solvableiterator solvables_iter()
380 for my $solvable (@{$pool->solvables_iter()})
381 for solvable in pool.solvables_iter():
382 for solvable in pool.solvables_iter()
384 Iterate over the existing solvables.
386 Dep Dep(const char *str, bool create = 1)
387 my $dep = $pool->Dep($string);
388 dep = pool.Dep(string)
389 dep = pool.Dep(string)
391 Create an object describing a string or dependency. If the string is currently
392 not in the pool and _create_ is false, *undef*/*None*/*nil* is returned.
394 void addfileprovides()
395 $pool->addfileprovides();
396 pool.addfileprovides()
397 pool.addfileprovides()
399 Id *addfileprovides_queue()
400 my @ids = $pool->addfileprovides_queue();
401 ids = pool.addfileprovides_queue()
402 ids = pool.addfileprovides_queue()
404 Some package managers like rpm allow dependencies on files contained in other
405 packages. To allow libsolv to deal with those dependencies in an efficient way,
406 you need to call the addfileprovides method after creating and reading all
407 repositories. This method will scan all dependency for file names and than scan
408 all packages for matching files. If a filename has been matched, it will be
409 added to the provides list of the corresponding package. The
410 addfileprovides_queue variant works the same way but returns an array
411 containing all file dependencies. This information can be stored in the
412 meta section of the repositories to speed up the next time the
413 repository is loaded and addfileprovides is called.
415 void createwhatprovides()
416 $pool->createwhatprovides();
417 pool.createwhatprovides()
418 pool.createwhatprovides()
420 Create the internal ``whatprovides'' hash over all of the provides of all
421 packages. This method must be called before doing any lookups on provides.
422 It's encouraged to do it right after all repos are set up, usually right after
423 the call to addfileprovides().
425 Solvable *whatprovides(DepId dep)
426 my @solvables = $pool->whatprovides($dep);
427 solvables = pool.whatprovides(dep)
428 solvables = pool.whatprovides(dep)
430 Return all solvables that provide the specified dependency. You can use either
431 a Dep object or an simple Id as argument.
433 Id *matchprovidingids(const char *match, int flags)
434 my @ids = $pool->matchprovidingids($match, $flags);
435 ids = pool.matchprovidingids(match, flags)
436 ids = pool.matchprovidingids(match, flags)
438 Search the names of all provides and return the ones matching the specified
439 string. See the Dataiterator class for the allowed flags.
441 Id towhatprovides(Id *ids)
442 my $offset = $pool->towhatprovides(\@ids);
443 offset = pool.towhatprovides(ids)
444 offset = pool.towhatprovides(ids)
446 ``Internalize'' an array containing Ids. The returned value can be used to
447 create solver jobs working on a specific set of packages. See the Solver class
448 for more information.
450 bool isknownarch(DepId id)
451 my $bool = $pool->isknownarch($id);
452 bool = pool.isknownarch(id)
453 bool = pool.isknownarch?(id)
455 Return true if the specified Id describes a known architecture.
458 my $solver = $pool->Solver();
459 solver = pool.Solver()
460 solver = pool.Solver()
462 Create a new solver object.
464 Job Job(int how, Id what)
465 my $job = $pool->Job($how, $what);
466 job = pool.Job(how, what)
467 job = pool.Job(how, what)
469 Create a new Job object. Kind of low level, in most cases you would use a
470 Selection or Dep job constructor instead.
472 Selection Selection()
473 my $sel = $pool->Selection();
474 sel = pool.Selection()
475 sel = pool.Selection()
477 Create an empty selection. Useful as a starting point for merging other
480 Selection Selection_all()
481 my $sel = $pool->Selection_all();
482 sel = pool.Selection_all()
483 sel = pool.Selection_all()
485 Create a selection containing all packages. Useful as starting point for
486 intersecting other selections or for update/distupgrade jobs.
488 Selection select(const char *name, int flags)
489 my $sel = $pool->select($name, $flags);
490 sel = pool.select(name, flags)
491 sel = pool.select(name, flags)
493 Create a selection by matching packages against the specified string. See the
494 Selection class for a list of flags and how to create solver jobs from a
497 void setpooljobs(Jobs *jobs)
498 $pool->setpooljobs(\@jobs);
499 pool.setpooljobs(jobs)
500 pool.setpooljobs(jobs)
503 @jobs = $pool->getpooljobs();
504 jobs = pool.getpooljobs()
505 jobs = pool.getpooljobs()
507 Get/Set fixed jobs stored in the pool. Those jobs are automatically appended to
508 all solver jobs, they are meant for fixed configurations like which packages
509 can be multiversion installed, which packages were userinstalled or must not be
512 void set_loadcallback(Callable *callback)
513 $pool->setloadcallback(\&callbackfunction);
514 pool.setloadcallback(callbackfunction)
515 pool.setloadcallback { |repodata| ... }
517 Set the callback function called when repository metadata needs to be loaded on
518 demand. To make use of this feature, you need to create repodata stubs that
519 tell the library which data is available but not loaded. If later on the data
520 needs to be accessed, the callback function is called with a repodata argument.
521 You can then load the data (maybe fetching it first from an remote server).
522 The callback should return true if the data has been made available.
524 === DATA RETRIEVAL METHODS ===
526 In the following functions, the _keyname_ argument describes what to retrieve.
527 For the standard cases you can use the available Id constants. For example,
529 $solv::SOLVABLE_SUMMARY
530 solv.SOLVABLE_SUMMARY
531 Solv::SOLVABLE_SUMMARY
533 selects the ``Summary'' entry of a solvable. The _solvid_ argument selects the
534 desired solvable by Id.
536 const char *lookup_str(Id solvid, Id keyname)
537 my $string = $pool->lookup_str($solvid, $keyname);
538 string = pool.lookup_str(solvid, keyname)
539 string = pool.lookup_str(solvid, keyname)
541 Id lookup_id(Id solvid, Id keyname)
542 my $id = $pool->lookup_id($solvid, $keyname);
543 id = pool.lookup_id(solvid, keyname)
544 id = pool.lookup_id(solvid, keyname)
546 unsigned long long lookup_num(Id solvid, Id keyname, unsigned long long notfound = 0)
547 my $num = $pool->lookup_num($solvid, $keyname);
548 num = pool.lookup_num(solvid, keyname)
549 num = pool.lookup_num(solvid, keyname)
551 bool lookup_void(Id solvid, Id keyname)
552 my $bool = $pool->lookup_void($solvid, $keyname);
553 bool = pool.lookup_void(solvid, keyname)
554 bool = pool.lookup_void(solvid, keyname)
556 Id *lookup_idarray(Id solvid, Id keyname)
557 my @ids = $pool->lookup_idarray($solvid, $keyname);
558 ids = pool.lookup_idarray(solvid, keyname)
559 ids = pool.lookup_idarray(solvid, keyname)
561 Chksum lookup_checksum(Id solvid, Id keyname)
562 my $chksum = $pool->lookup_checksum($solvid, $keyname);
563 chksum = pool.lookup_checksum(solvid, keyname)
564 chksum = pool.lookup_checksum(solvid, keyname)
566 Lookup functions. Return the data element stored in the specified solvable.
567 You should probably use the methods of the Solvable class instead.
569 Dataiterator Dataiterator(Id solvid, Id keyname, const char *match, int flags)
570 my $di = $pool->Dataiterator($solvid, $keyname, $match, $flags);
571 di = pool.Dataiterator(solvid, keyname, match, flags)
572 di = pool.Dataiterator(solvid, keyname, match, flags)
578 Iterate over the matching data elements. See the Dataiterator class for more
583 The following methods deal with Ids, i.e. integers representing objects in the
584 pool. They are considered ``low level'', in most cases you would not use them
585 but instead the object orientated methods.
588 $repo = $pool->id2repo($id);
589 repo = pool.id2repo(id)
590 repo = pool.id2repo(id)
592 Lookup an existing Repository by id. You can also do this by using the *repos*
595 Solvable id2solvable(Id id)
596 $solvable = $pool->id2solvable($id);
597 solvable = pool.id2solvable(id)
598 solvable = pool.id2solvable(id)
600 Lookup an existing Repository by id. You can also do this by using the
601 *solvables* attribute.
603 const char *solvid2str(Id id)
604 my $str = $pool->solvid2str($id);
605 str = pool.solvid2str(id)
606 str = pool.solvid2str(id)
608 Return a string describing the Solvable with the specified id. The string
609 consists of the name, version, and architecture of the Solvable.
611 Id str2id(const char *str, bool create = 1)
612 my $id = pool->str2id($string);
613 id = pool.str2id(string)
614 id = pool.str2id(string)
616 const char *id2str(Id id)
617 $string = pool->id2str($id);
618 string = pool.id2str(id)
619 string = pool.id2str(id)
621 Convert a string into an Id and back. If the string is currently not in the
622 pool and _create_ is false, zero is returned.
624 Id rel2id(Id name, Id evr, int flags, bool create = 1)
625 my $id = pool->rel2id($nameid, $evrid, $flags);
626 id = pool.rel2id(nameid, evrid, flags)
627 id = pool.rel2id(nameid, evrid, flags)
629 Create a ``relational'' dependency. Such dependencies consist of a name part,
630 the _flags_ describing the relation, and a version part. The flags are:
632 $solv::REL_EQ | $solv::REL_GT | $solv::REL_LT
633 solv.REL_EQ | solv.REL_GT | solv.REL_LT
634 Solv::REL_EQ | Solv::REL_GT | Solv::REL_LT
636 Thus, if you want a ``\<='' relation, you would use *REL_LT | REL_EQ*.
638 Id id2langid(Id id, const char *lang, bool create = 1)
639 my $id = $pool->id2langid($id, $language);
640 id = pool.id2langid(id, language)
641 id = pool.id2langid(id, language)
643 Create a language specific Id from some other id. This function simply converts
644 the id into a string, appends a dot and the specified language to the string
645 and converts the result back into an Id.
647 const char *dep2str(Id id)
648 $string = pool->dep2str($id);
649 string = pool.dep2str(id)
650 string = pool.dep2str(id)
652 Convert a dependency id into a string. If the id is just a string, this
653 function has the same effect as id2str(). For relational dependencies, the
654 result is the correct ``name relation evr'' string.
659 The dependency class is an object orientated way to work with strings and
660 dependencies. Internally, dependencies are represented as Ids, i.e. simple
661 numbers. Dependency objects can be constructed by using the Pool's Dep()
666 Pool *pool; /* read only */
671 Back reference to the pool this dependency belongs to.
673 Id id; /* read only */
678 The id of this dependency.
682 Dep Rel(int flags, DepId evrid, bool create = 1)
683 my $reldep = $dep->Rel($flags, $evrdep);
684 reldep = dep.Rel(flags, evrdep)
685 reldep = dep.Rel(flags, evrdep)
687 Create a relational dependency from to string dependencies and a flags
688 argument. See the pool's rel2id method for a description of the flags.
690 Selection Selection_name(int setflags = 0)
691 my $sel = $dep->Selection_name();
692 sel = dep.Selection_name()
693 sel = dep.Selection_name()
695 Create a Selection from a dependency. The selection consists of all packages
696 that have a name equal to the dependency. If the dependency is of a relational
697 type, the packages version must also fulfill the dependency.
699 Selection Selection_provides(int setflags = 0)
700 my $sel = $dep->Selection_provides();
701 sel = dep.Selection_provides()
702 sel = dep.Selection_provides()
704 Create a Selection from a dependency. The selection consists of all packages
705 that have at least one provides matching the dependency.
708 my $str = $dep->str();
712 Return a string describing the dependency.
719 Same as calling the str() method.
726 The dependencies are equal if they are part of the same pool and have the same
732 A Repository describes a group of packages, normally coming from the same
733 source. Repositories are created by the Pool's add_repo() method.
737 Pool *pool; /* read only */
742 Back reference to the pool this dependency belongs to.
744 Id id; /* read only */
749 The id of the repository.
751 const char *name; /* read/write */
756 The repositories name. To libsolv, the name is just a string with no specific
759 int priority; /* read/write */
764 The priority of the repository. A higher number means that packages of this
765 repository will be chosen over other repositories, even if they have a greater
768 int subpriority; /* read/write */
773 The sub-priority of the repository. This value is compared when the priorities
774 of two repositories are the same. It is useful to make the library prefer
775 on-disk repositories to remote ones.
777 int nsolvables; /* read only */
782 The number of solvables in this repository.
784 void *appdata; /* read/write */
789 Application specific data that may be used in any way by the code using the
792 Datapos *meta; /* read only */
797 Return a Datapos object of the repodata's metadata. You can use the lookup
798 methods of the Datapos class to lookup metadata attributes, like the repository
803 *REPO_REUSE_REPODATA*::
804 Reuse the last repository data area (``repodata'') instead of creating a
807 *REPO_NO_INTERNALIZE*::
808 Do not internalize the added repository data. This is useful if
809 you plan to add more data because internalization is a costly
813 Use the repodata's pool for Id storage instead of the global pool. Useful
814 if you don't want to pollute the global pool with many unneeded ids, like
815 when storing the filelist.
818 Use the repodata that is currently being loaded instead of creating a new
819 one. This only makes sense if used in a load callback.
821 *REPO_EXTEND_SOLVABLES*::
822 Do not create new solvables for the new data, but match existing solvables
823 and add the data to them. Repository metadata is often split into multiple
824 parts, with one primary file describing all packages and other parts
825 holding information that is normally not needed, like the changelog.
828 Prepend the pool's rootdir to the path when doing file operations.
831 Do not add a location element to the solvables. Useful if the solvables
832 are not in the final position, so you can add the correct location later
835 *SOLV_ADD_NO_STUBS*::
836 Do not create stubs for repository parts that can be downloaded on demand.
838 *SUSETAGS_RECORD_SHARES*::
839 This is specific to the add_susetags() method. Susetags allows to refer to
840 already read packages to save disk space. If this data sharing needs to
841 work over multiple calls to add_susetags, you need to specify this flag so
842 that the share information is made available to subsequent calls.
846 void free(bool reuseids = 0)
851 Free the repository and all solvables it contains. If _reuseids_ is set to
852 true, the solvable ids and the repository id may be reused by the library when
853 added new solvables. Thus you should leave it false if you are not sure that
854 somebody holds a reference.
856 void empty(bool reuseids = 0)
861 Free all the solvables in a repository. The repository will be empty after this
862 call. See the free() method for the meaning of _reuseids_.
869 Return true if there are no solvables in this repository.
872 $repo->internalize();
876 Internalize added data. Data must be internalized before it is available to the
877 lookup and data iterator functions.
884 Write a repo as a ``solv'' file. These files can be read very fast and thus are
885 a good way to cache repository data. Returns false if there was some error
888 Solvableiterator solvables_iter()
889 for my $solvable (@{$repo->solvables_iter()})
890 for solvable in repo.solvables_iter():
891 for solvable in repo.solvables_iter()
893 Iterate over all solvables in a repository.
895 Repodata add_repodata(int flags = 0)
896 my $repodata = $repo->add_repodata();
897 repodata = repo.add_repodata()
898 repodata = repo.add_repodata()
900 Add a new repodata area to the repository. This is normally automatically
901 done by the repo_add methods, so you need this method only in very
905 $repo->create_stubs();
909 Calls the create_stubs() repodata method for the last repodata of the
913 $repo->iscontiguous()
917 Return true if the solvables of this repository are all in a single block with
918 no holes, i.e. they have consecutive ids.
920 Repodata first_repodata()
921 my $repodata = $repo->first_repodata();
922 repodata = repo.first_repodata()
923 repodata = repo.first_repodata()
925 Checks if all repodatas but the first repodata are extensions, and return the
926 first repodata if this is the case. Useful if you want to do a store/retrieve
927 sequence on the repository to reduce the memory using and enable paging, as
928 this does not work if the repository contains multiple non-extension repodata
931 Selection Selection(int setflags = 0)
932 my $sel = $repo->Selection();
933 sel = repo.Selection()
934 sel = repo.Selection()
936 Create a Selection consisting of all packages in the repository.
938 Dataiterator Dataiterator(Id p, Id key, const char *match, int flags)
939 my $di = $repo->Dataiterator($solvid, $keyname, $match, $flags);
940 di = repo.Dataiterator(solvid, keyname, match, flags)
941 di = repo.Dataiterator(solvid, keyname, match, flags)
947 Iterate over the matching data elements in this repository. See the
948 Dataiterator class for more information.
951 my $str = $repo->str;
955 Return the name of the repository, or "Repo#<id>" if no name is set.
958 if ($repo1 == $repo2)
962 Two repositories are equal if they belong to the same pool and have the same id.
964 === DATA ADD METHODS ===
966 Solvable add_solvable()
967 $repo->add_solvable();
971 Add a single empty solvable to the repository. Returns a Solvable object, see
972 the Solvable class for more information.
974 bool add_solv(const char *name, int flags = 0)
975 $repo->add_solv($name);
979 bool add_solv(FILE *fp, int flags = 0)
980 $repo->add_solv($fp);
984 Read a ``solv'' file and add its contents to the repository. These files can be
985 written with the write() method and are normally used as fast cache for
988 bool add_rpmdb(int flags = 0)
993 bool add_rpmdb_reffp(FILE *reffp, int flags = 0)
994 $repo->add_rpmdb_reffp($reffp);
995 repo.add_rpmdb_reffp(reffp)
996 repo.add_rpmdb_reffp(reffp)
998 Add the contents of the rpm database to the repository. If a solv file
999 containing an old version of the database is available, it can be passed as
1000 reffp to speed up reading.
1002 Solvable add_rpm(const char *filename, int flags = 0)
1003 my $solvable = $repo->add_rpm($filename);
1004 solvable = repo.add_rpm(filename)
1005 solvable = repo.add_rpm(filename)
1007 Add the metadata of a single rpm package to the repository.
1009 bool add_rpmdb_pubkeys(int flags = 0)
1010 $repo->add_rpmdb_pubkeys();
1011 repo.add_rpmdb_pubkeys()
1012 repo.add_rpmdb_pubkeys()
1014 Add all pubkeys contained in the rpm database to the repository. Note that
1015 newer rpm versions also allow to store the pubkeys in some directory instead
1016 of the rpm database.
1018 Solvable add_pubkey(const char *keyfile, int flags = 0)
1019 my $solvable = $repo->add_pubkey($keyfile);
1020 solvable = repo.add_pubkey(keyfile)
1021 solvable = repo.add_pubkey(keyfile)
1023 Add a pubkey from a file to the repository.
1025 bool add_rpmmd(FILE *fp, const char *language, int flags = 0)
1026 $repo->add_rpmmd($fp, undef);
1027 repo.add_rpmmd(fp, None)
1028 repo.add_rpmmd(fp, nil)
1030 Add metadata stored in the "rpm-md" format (i.e. from files in the ``repodata''
1031 directory) to a repository. Supported files are "primary", "filelists",
1032 "other", "suseinfo". Do not forget to specify the *REPO_EXTEND_SOLVABLES* for
1033 extension files like "filelists" and "other". Use the _language_ parameter if
1034 you have language extension files, otherwise simply use a *undef*/*None*/*nil*
1037 bool add_repomdxml(FILE *fp, int flags = 0)
1038 $repo->add_repomdxml($fp);
1039 repo.add_repomdxml(fp)
1040 repo.add_repomdxml(fp)
1042 Add the repomd.xml meta description from the "rpm-md" format to the repository.
1043 This file contains information about the repository like keywords, and also a
1044 list of all database files with checksums. The data is added the the "meta"
1045 section of the repository, i.e. no package gets created.
1047 bool add_updateinfoxml(FILE *fp, int flags = 0)
1048 $repo->add_updateinfoxml($fp);
1049 repo.add_updateinfoxml(fp)
1050 repo.add_updateinfoxml(fp)
1052 Add the updateinfo.xml file containing available maintenance updates to the
1053 repository. All updates are created as special packages that have a "patch:"
1054 prefix in their name.
1056 bool add_deltainfoxml(FILE *fp, int flags = 0)
1057 $repo->add_deltainfoxml($fp);
1058 repo.add_deltainfoxml(fp)
1059 repo.add_deltainfoxml(fp)
1061 Add the deltainfo.xml file (also called prestodelta.xml) containing available
1062 delta-rpms to the repository. The data is added to the "meta" section, i.e. no
1063 package gets created.
1065 bool add_debdb(int flags = 0)
1070 Add the contents of the debian installed package database to the repository.
1072 bool add_debpackages(FILE *fp, int flags = 0)
1073 $repo->add_debpackages($fp);
1074 repo.add_debpackages($fp)
1075 repo.add_debpackages($fp)
1077 Add the contents of the debian repository metadata (the "packages" file)
1080 Solvable add_deb(const char *filename, int flags = 0)
1081 my $solvable = $repo->add_deb($filename);
1082 solvable = repo.add_deb(filename)
1083 solvable = repo.add_deb(filename)
1085 Add the metadata of a single deb package to the repository.
1087 bool add_mdk(FILE *fp, int flags = 0)
1088 $repo->add_mdk($fp);
1092 Add the contents of the mageia/mandriva repository metadata (the
1093 "synthesis.hdlist" file) to the repository.
1095 bool add_mdk_info(FILE *fp, int flags = 0)
1096 $repo->add_mdk($fp);
1100 Extend the packages from the synthesis file with the info.xml and files.xml
1101 data. Do not forget to specify *REPO_EXTEND_SOLVABLES*.
1103 bool add_arch_repo(FILE *fp, int flags = 0)
1104 $repo->add_arch_repo($fp);
1105 repo.add_arch_repo(fp)
1106 repo.add_arch_repo(fp)
1108 Add the contents of the archlinux repository metadata (the ".db.tar" file) to
1111 bool add_arch_local(const char *dir, int flags = 0)
1112 $repo->add_arch_local($dir);
1113 repo.add_arch_local(dir)
1114 repo.add_arch_local(dir)
1116 Add the contents of the archlinux installed package database to the repository.
1117 The _dir_ parameter is usually set to "/var/lib/pacman/local".
1119 bool add_content(FILE *fp, int flags = 0)
1120 $repo->add_content($fp);
1121 repo.add_content(fp)
1122 repo.add_content(fp)
1124 Add the ``content'' meta description from the susetags format to the repository.
1125 This file contains information about the repository like keywords, and also
1126 a list of all database files with checksums. The data is added the the "meta"
1127 section of the repository, i.e. no package gets created.
1129 bool add_susetags(FILE *fp, Id defvendor, const char *language, int flags = 0)
1130 $repo->add_susetags($fp, $defvendor, $language);
1131 repo.add_susetags(fp, defvendor, language)
1132 repo.add_susetags(fp, defvendor, language)
1134 Add repository metadata in the susetags format to the repository. Like with
1135 add_rpmmd, you can specify a language if you have language extension files. The
1136 _defvendor_ parameter provides a default vendor for packages with missing
1137 vendors, it is usually provided in the content file.
1139 bool add_products(const char *dir, int flags = 0)
1140 $repo->add_products($dir);
1141 repo.add_products(dir)
1142 repo.add_products(dir)
1144 Add the installed SUSE products database to the repository. The _dir_ parameter
1145 is usually "/etc/products.d".
1150 A solvable describes all the information of one package. Each solvable
1151 belongs to one repository, it can be added and filled manually but in
1152 most cases solvables will get created by the repo_add methods.
1156 Repo *repo; /* read only */
1161 The repository this solvable belongs to.
1163 Pool *pool; /* read only */
1168 The pool this solvable belongs to, same as the pool of the repo.
1170 Id id; /* read only */
1175 The specific id of the solvable.
1177 char *name; /* read/write */
1182 char *evr; /* read/write */
1187 char *arch; /* read/write */
1192 char *vendor; /* read/write */
1197 Easy access to often used attributes of solvables. They are
1198 internally stored as Ids.
1200 Id nameid; /* read/write */
1205 Id evrid; /* read/write */
1210 Id archid; /* read/write */
1215 Id vendorid; /* read/write */
1216 $solvable->{vendorid}
1220 Raw interface to the ids. Useful if you want to search for
1221 a specific id and want to avoid the string compare overhead.
1225 const char *lookup_str(Id keyname)
1226 my $string = $solvable->lookup_str($keyname);
1227 string = solvable.lookup_str(keyname)
1228 string = solvable.lookup_str(keyname)
1230 Id lookup_id(Id keyname)
1231 my $id = $solvable->lookup_id($keyname);
1232 id = solvable.lookup_id(solvid)
1233 id = solvable.lookup_id(solvid)
1235 unsigned long long lookup_num(Id solvid, Id keyname, unsigned long long notfound = 0)
1236 my $num = $solvable->lookup_num($keyname);
1237 num = solvable.lookup_num(keyname)
1238 num = solvable.lookup_num(keyname)
1240 bool lookup_void(Id keyname)
1241 my $bool = $solvable->lookup_void($keyname);
1242 bool = solvable.lookup_void(keyname)
1243 bool = solvable.lookup_void(keyname)
1245 Chksum lookup_checksum(Id keyname)
1246 my $chksum = $solvable->lookup_checksum($keyname);
1247 chksum = solvable.lookup_checksum(keyname)
1248 chksum = solvable.lookup_checksum(keyname)
1250 Id *lookup_idarray(Id keyname, Id marker = -1)
1251 my @ids = $solvable->lookup_idarray($keyname);
1252 ids = solvable.lookup_idarray(keyname)
1253 ids = solvable.lookup_idarray(keyname)
1255 Dep *lookup_deparray(Id keyname, Id marker = -1)
1256 my @deps = $solvable->lookup_deparray($keyname);
1257 deps = solvable.lookup_deparray(keyname)
1258 deps = solvable.lookup_deparray(keyname)
1260 Generic lookup methods. Retrieve data stored for the specific keyname.
1261 The lookup_idarray() method will return an array of Ids, use
1262 lookup_deparray if you want an array of Dependency objects instead.
1263 Some Id arrays contain two parts of data divided by a specific marker,
1264 for example the provides array uses the SOLVABLE_FILEMARKER id to
1265 store both the ids provided by the package and the ids added by
1266 the addfileprovides method. The default, -1, translates to the
1267 correct marker for the keyname and returns the first part of the
1268 array, use 1 to select the second part or 0 to retrieve all ids
1269 including the marker.
1271 const char *lookup_location(unsigned int *OUTPUT);
1272 my ($location, $medianr) = $solvable->lookup_location();
1273 location, medianr = solvable.lookup_location()
1274 location, medianr = solvable.lookup_location()
1276 Return a tuple containing the on-media location and an optional
1277 media number for multi-part repositories (e.g. repositories
1278 spawning multiple DVDs).
1280 void add_deparray(Id keyname, DepId dep, Id marker = -1);
1281 $solvable->add_deparray($keyname, $dep);
1282 solvable.add_deparray(keyname, dep)
1283 solvable.add_deparray(keyname, dep)
1285 Add a new dependency to the attributes stored in keyname.
1288 $solvable->installable()
1289 solvable.installable()
1290 solvable.installable?
1292 Return true if the solvable is installable on the system. Solvables
1293 are not installable if the system does not support their architecture.
1296 $solvable->isinstalled()
1297 solvable.isinstalled()
1298 solvable.isinstalled?
1300 Return true if the solvable is installed on the system.
1302 Selection Selection(int setflags = 0)
1303 my $sel = $solvable->Selection();
1304 sel = solvable.Selection()
1305 sel = solvable.Selection()
1307 Create a Selection containing just the single solvable.
1310 my $str = $solvable->str();
1311 str = $solvable.str()
1312 str = $solvable.str()
1314 Return a string describing the solvable. The string consists of the name,
1315 version, and architecture of the Solvable.
1318 my $str = $solvable->str;
1322 Same as calling the str() method.
1325 if ($solvable1 == $solvable2)
1326 if solvable1 == solvable2:
1327 if solvable1 == solvable2
1329 Two solvables are equal if they are part of the same pool and have the same
1333 The Dataiterator Class
1334 ----------------------
1335 Dataiterators can be used to do complex string searches or
1336 to iterate over arrays. They can be created via the
1337 constructors in the Pool, Repo, and Solvable classes. The
1338 Repo and Solvable constructors will limit the search to
1339 the repository or the specific package.
1344 Return a match if the search string matches the value.
1346 *SEARCH_STRINGSTART*::
1347 Return a match if the value starts with the search string.
1349 *SEARCH_STRINGEND*::
1350 Return a match if the value ends with the search string.
1352 *SEARCH_SUBSTRING*::
1353 Return a match if the search string can be matched somewhere in the value.
1356 Do a glob match of the search string against the value.
1359 Do a regular expression match of the search string against the value.
1362 Ignore case when matching strings. Works for all the above match types.
1365 Match the complete filenames of the file list, not just the base name.
1367 *SEARCH_COMPLETE_FILELIST*::
1368 When matching the file list, check every file of the package not just the
1369 subset from the primary metadata.
1371 *SEARCH_CHECKSUMS*::
1372 Allow the matching of checksum entries.
1376 void prepend_keyname(Id keyname);
1377 $di->prepend_keyname($keyname);
1378 di.prepend_keyname(keyname)
1379 di.prepend_keyname(keyname)
1381 Do a sub-search in the array stored in keyname.
1383 void skip_solvable();
1384 $di->kip_solvable();
1388 Stop matching the current solvable and advance to the next
1396 Iterate through the matches. If there is a match, the object
1397 in d will be of type Datamatch.
1401 Objects of this type will be created for every value matched
1406 Pool *pool; /* read only */
1411 Back pointer to pool.
1413 Repo *repo; /* read only */
1418 The repository containing the matched object.
1420 Solvable *solvable; /* read only */
1425 The solvable containing the value that was matched.
1427 Id solvid; /* read only */
1432 The id of the solvable that matched.
1441 const char *key_idstr();
1446 The keyname that matched, either as id or string.
1453 const char *type_idstr();
1458 The key type of the value that was matched, either as id or string.
1470 The Id of the value that was matched (only valid for id types),
1471 either as id or string.
1478 The string value that was matched (only valid for string types).
1480 unsigned long long num();
1485 The numeric value that was matched (only valid for numeric types).
1487 unsigned int num2();
1492 The secondary numeric value that was matched (only valid for types
1493 containing two values).
1496 my $pos = $d->pos();
1500 The position object of the current match. It can be used to do
1501 sub-searches starting at the match (if it is of an array type).
1502 See the Datapos class for more information.
1504 Datapos parentpos();
1505 my $pos = $d->parentpos();
1509 The position object of the array containing the current match.
1510 It can be used to do sub-searches, see the Datapos class for more
1518 Return the stringification of the matched value. Stringification
1519 depends on the search flags, for file list entries it will return
1520 just the base name unless SEARCH_FILES is used, for checksums
1521 it will return an empty string unless SEARCH_CHECKSUMS is used.
1522 Numeric values are currently stringified to an empty string.
1527 Selections are a way to easily deal with sets of packages.
1528 There are multiple constructors to create them, the most useful
1529 is probably the select() method in the Pool class.
1534 Create the selection by matching package names.
1536 *SELECTION_PROVIDES*::
1537 Create the selection by matching package provides.
1539 *SELECTION_FILELIST*::
1540 Create the selection by matching package files.
1543 Create the selection by matching the canonical representation
1544 of the package. This is normally a combination of the name,
1545 the version, and the architecture of a package.
1547 *SELECTION_DOTARCH*::
1548 Allow an ``.<architecture>'' suffix when matching names or
1552 Allow the specification of a relation when matching names
1553 or provides, e.g. "name >= 1.2".
1555 *SELECTION_INSTALLED_ONLY*::
1556 Limit the package search to installed packages.
1558 *SELECTION_SOURCE_ONLY*::
1559 Limit the package search to source packages only.
1561 *SELECTION_WITH_SOURCE*::
1562 Extend the package search to also match source packages. The default is
1563 only to match binary packages.
1566 Allow glob matching for package names, package provides, and file names.
1568 *SELECTION_NOCASE*::
1569 Ignore case when matching package names, package provides, and file names.
1572 Return only one selection element describing the selected packages.
1573 The default is to create multiple elements for all globbed packages.
1574 Multiple elements are useful if you want to turn the selection into
1575 an install job, in that case you want an install job for every
1580 Pool *pool; /* read only */
1585 Back pointer to pool.
1590 my $flags = $sel->flags();
1594 Return the result flags of the selection. The flags are a subset
1595 of the ones used when creating the selection, they describe which
1596 method was used to get the result. For example, if you create the
1597 selection with ``SELECTION_NAME | SELECTION_PROVIDES'', the resulting
1598 flags will either be SELECTION_NAME or SELECTION_PROVIDES depending
1599 if there was a package that matched the name or not. If there was
1600 no match at all, the flags will be zero.
1607 Return true if the selection is empty, i.e. no package could be matched.
1609 void filter(Selection *other)
1610 $sel->filter($other);
1614 Intersect two selections. Packages will only stay in the selection if there
1615 are also included in the other selecting. Does an in-place modification.
1617 void add(Selection *other)
1622 Build the union of two selections. All packages of the other selection will
1623 be added to the set of packages of the selection object. Does an in-place
1624 modification. Note that the selection flags are no longer meaningful after the
1627 void add_raw(Id how, Id what)
1628 $sel->add_raw($how, $what);
1629 sel.add_raw(how, what)
1630 sel.add_raw(how, what)
1632 Add a raw element to the selection. Check the Job class for information about
1633 the how and what parameters.
1635 Job *jobs(int action)
1636 my @jobs = $sel->jobs($action);
1637 jobs = sel.jobs(action)
1638 jobs = sel.jobs(action)
1640 Convert a selection into an array of Job objects. The action parameter is or-ed
1641 to the ``how'' part of the job, it describes the type of job (e.g. install,
1642 erase). See the Job class for the action and action modifier constants.
1644 Solvable *solvables()
1645 my @solvables = $sel->solvables();
1646 solvables = sel.solvables()
1647 solvables = sel.solvables()
1649 Convert a selection into an array of Solvable objects.
1652 my $str = $sel->str;
1656 Return a string describing the selection.
1660 Jobs are the way to specify to the dependency solver what to do.
1661 Most of the times jobs will get created by calling the jobs() method
1662 on a Selection object, but there is also a Job() constructor in the
1667 Selection constants:
1670 The ``what'' part is the id of a solvable.
1672 *SOLVER_SOLVABLE_NAME*::
1673 The ``what'' part is the id of a package name.
1675 *SOLVER_SOLVABLE_PROVIDES*::
1676 The ``what'' part is the id of a package provides.
1678 *SOLVER_SOLVABLE_ONE_OF*::
1679 The ``what'' part is an offset into the ``whatprovides'' data, created
1680 by calling the towhatprovides() pool method.
1682 *SOLVER_SOLVABLE_REPO*::
1683 The ``what'' part is the id of a repository.
1685 *SOLVER_SOLVABLE_ALL*::
1686 The ``what'' part is ignored, all packages are selected.
1688 *SOLVER_SOLVABLE_SELECTMASK*::
1689 A mask containing all the above selection bits.
1697 Install a package of the specified set of packages. It tries to install
1698 the best matching package (i.e. the highest version of the packages from
1699 the repositories with the highest priority).
1702 Erase all of the packages from the specified set. If a package is not
1703 installed, erasing it will keep it from getting installed.
1706 Update the matching installed packages to their best version. If none
1707 of the specified packages are installed, try to update the installed
1708 packages to the specified versions. See the section about targeted
1709 updates about more information.
1711 *SOLVER_WEAKENDEPS*::
1712 Allow to break the dependencies of the matching packages. Handle with care.
1714 *SOLVER_MULTIVERSION*::
1715 Mark the matched packages for multiversion install. If they get to be
1716 installed because of some other job, the installation will keep the old
1717 version of the package installed (for rpm this is done by using ``-i''
1721 Do not change the state of the matched packages, i.e. when they are
1722 installed they stay installed, if not they are not selected for
1725 *SOLVER_DISTUPGRADE*::
1726 Update the matching installed packages to the best version included in one
1727 of the repositories. After this operation, all come from one of the available
1728 repositories except orphaned packages. Orphaned packages are packages that
1729 have no relation to the packages in the repositories, i.e. no package in the
1730 repositories have the same name or obsolete the orphaned package.
1731 This action brings the installed packages in sync with the ones in the
1732 repository. It also turns of arch/vendor/version locking for the affected
1733 packages to simulate a fresh installation. This means that distupgrade can
1734 actually downgrade packages if only lower versions of a package are available
1735 in the repositories.
1737 *SOLVER_DROP_ORPHANED*::
1738 Erase all the matching installed packages if they are orphaned. This only makes
1739 sense if there is a ``distupgrade all packages'' job. The default is to erase
1740 orphaned packages only if they block the installation of other packages.
1743 Fix dependency problems of matching installed packages. The default is to ignore
1744 dependency problems for installed packages.
1746 *SOLVER_USERINSTALLED*::
1747 The matching installed packages are considered to be installed by a user,
1748 thus not installed to fulfill some dependency. This is needed input for
1749 the calculation of unneeded packages for jobs that have the
1750 SOLVER_CLEANDEPS flag set.
1753 A mask containing all the above action bits.
1755 Action modifier constants:
1758 Makes the job a weak job. The solver tries to fulfill weak jobs, but does
1759 not report a problem if it is not possible to do so.
1761 *SOLVER_ESSENTIAL*::
1762 Makes the job an essential job. If there is a problem with the job, the
1763 solver will not propose to remove the job as one solution (unless all
1764 other solutions are also to remove essential jobs).
1766 *SOLVER_CLEANDEPS*::
1767 The solver will try to also erase all packages dragged in through
1768 dependencies when erasing the package. This needs SOLVER_USERINSTALLED
1769 jobs to maximize user satisfaction.
1771 *SOLVER_FORCEBEST*::
1772 Insist on the best package for install, update, and distupgrade jobs. If
1773 this flag is not used, the solver will use the second-best package if the
1774 best package cannot be installed for some reason. When this flag is used,
1775 the solver will generate a problem instead.
1778 Forces targeted operation update and distupgrade jobs. See the section
1779 about targeted updates about more information.
1784 The job specified the exact epoch and version of the package set.
1787 The job specified the exact epoch, version, and release of the package set.
1790 The job specified the exact architecture of the packages from the set.
1792 *SOLVER_SETVENDOR*::
1793 The job specified the exact vendor of the packages from the set.
1796 The job specified the exact repository of the packages from the set.
1799 The job specified the exact name of the packages from the set.
1801 *SOLVER_NOAUTOSET*::
1802 Turn of automatic set flag generation for SOLVER_SOLVABLE jobs.
1805 A mask containing all the above set bits.
1807 See the section about set bits for more information.
1811 Pool *pool; /* read only */
1816 Back pointer to pool.
1818 Id how; /* read/write */
1823 Union of the selection, action, action modifier, and set flags.
1824 The selection part describes the semantics of the ``what'' Id.
1826 Id what; /* read/write */
1831 Id describing the set of packages, the meaning depends on the
1832 selection part of the ``how'' attribute.
1836 Solvable *solvables()
1837 my @solvables = $job->solvables();
1838 solvables = job.solvables()
1839 solvables = job.solvables()
1841 Return the set of solvables of the job as an array of Solvable
1844 bool isemptyupdate();
1845 $job->isemptyupdate()
1849 Convenience function to find out if the job describes an update
1850 job with no matching packages, i.e. a job that does nothing.
1851 Some package managers like ``zypper'' like to turn those jobs
1852 into install jobs, i.e. an update of a not-installed package
1853 will result into the installation of the package.
1856 my $str = $job->str;
1860 Return a string describing the job.
1867 Two jobs are equal if they belong to the same pool and both the
1868 ``how'' and the ``what'' attributes are the same.
1870 === TARGETED UPDATES ===
1871 Libsolv has two modes for upgrades and distupgrade: targeted and
1872 untargeted. Untargeted mode means that the installed packages from
1873 the specified set will be updated to the best version. Targeted means
1874 that packages that can be updated to a package in the specified set
1875 will be updated to the best package of the set.
1877 Here's an example to explain the subtle difference. Suppose that
1878 you have package A installed in version "1.1", "A-1.2" is available
1879 in one of the repositories and there is also package "B" that
1880 obsoletes package A.
1882 An untargeted update of "A" will update the installed "A-1.1" to
1883 package "B", because that is the newest version (B obsoletes A and
1886 A targeted update of "A" will update "A-1.1" to "A-1.2", as the
1887 set of packages contains both "A-1.1" and "A-1.2", and "A-1.2" is
1890 An untargeted update of "B" will do nothing, as "B" is not installed.
1892 An targeted update of "B" will update "A-1.1" to "B".
1894 Note that the default is to do "auto-targeting", thus if the specified
1895 set of packages does not include an installed package, the solver
1896 will assume targeted operation even if SOLVER_TARGETED is not used.
1898 This mostly matches the intent of the user, with one exception: In
1899 the example above, an update of "A-1.2" will update "A-1.1" to
1900 "A-1.2" (targeted mode), but a second update of "A-1.2" will suddenly
1901 update to "B", as untargeted mode is chosen because "A-1.2" is now
1904 If you want to have full control over when targeting mode is chosen,
1905 turn off auto-targeting with the SOLVER_FLAG_NO_AUTOTARGET solver option.
1906 In that case, all updates are considered to be untargeted unless they
1907 include the SOLVER_TARGETED flag.
1910 Set bits specify which parts of the specified packages where specified
1911 by the user. It is used by the solver when checking if an operation is
1912 allowed or not. For example, the solver will normally not allow the
1913 downgrade of an installed package. But it will not report a problem if
1914 the SOLVER_SETEVR flag is used, as it then assumes that the user specified
1915 the exact version and thus knows what he is doing.
1917 So if a package "screen-1-1" is installed for the x86_64 architecture and
1918 version "2-1" is only available for the i586 architecture, installing
1919 package "screen-2.1" will ask the user for confirmation because of the
1920 different architecture. When using the Selection class to create jobs
1921 the set bits are automatically added, e.g. selecting ``screen.i586'' will
1922 automatically add SOLVER_SETARCH, and thus no problem will be reported.
1926 Dependency solving is what this library is about. A solver object is needed
1927 for solving to store the result of the solver run. The solver object can be
1928 used multiple times for different jobs, reusing it allows the solver to
1929 re-use the dependency rules it already computed.
1933 Flags to modify some of the solver's behavior:
1935 *SOLVER_FLAG_ALLOW_DOWNGRADE*::
1936 Allow the solver to downgrade packages without asking for confirmation
1937 (i.e. reporting a problem).
1939 *SOLVER_FLAG_ALLOW_ARCHCHANGE*::
1940 Allow the solver to change the architecture of an installed package
1941 without asking for confirmation. Note that changes to/from noarch
1942 are always considered to be allowed.
1944 *SOLVER_FLAG_ALLOW_VENDORCHANGE*::
1945 Allow the solver to change the vendor of an installed package
1946 without asking for confirmation. Each vendor is part of one or more
1947 vendor equivalence classes, normally installed packages may only
1948 change their vendor if the new vendor shares at least one equivalence
1951 *SOLVER_FLAG_ALLOW_NAMECHANGE*::
1952 Allow the solver to change the name of an installed package, i.e.
1953 install a package with a different name that obsoletes the installed
1954 package. This option is on by default.
1956 *SOLVER_FLAG_ALLOW_UNINSTALL*::
1957 Allow the solver to erase installed packages to fulfill the jobs.
1958 This flag also includes the above flags. You may want to set this
1959 flag if you only have SOLVER_ERASE jobs, as in that case it's
1960 better for the user to check the transaction overview instead of
1961 approving every single package that needs to be erased.
1963 *SOLVER_FLAG_NO_UPDATEPROVIDE*::
1964 If multiple packages obsolete an installed package, the solver checks
1965 the provides of every such package and ignores all packages that
1966 do not provide the installed package name. Thus, you can have an
1967 official update candidate that provides the old name, and other
1968 packages that also obsolete the package but are not considered for
1969 updating. If you cannot use this feature, you can turn it off
1970 by setting this flag.
1972 *SOLVER_FLAG_SPLITPROVIDES*::
1973 Make the solver aware of special provides of the form
1974 ``<packagename>:<path>'' used in SUSE systems to support package
1977 *SOLVER_FLAG_IGNORE_RECOMMENDED*::
1978 Do not process optional (aka weak) dependencies.
1980 *SOLVER_FLAG_ADD_ALREADY_RECOMMENDED*::
1981 Install recommended or supplemented packages even if they have no
1982 connection to the current transaction. You can use this feature
1983 to implement a simple way for the user to install new recommended
1984 packages that were not available in the past.
1986 *SOLVER_FLAG_NO_INFARCHCHECK*::
1987 Turn off the inferior architecture checking that is normally done
1988 by the solver. Normally, the solver allows only the installation
1989 of packages from the "best" architecture if a package is available
1990 for multiple architectures.
1992 *SOLVER_FLAG_BEST_OBEY_POLICY*::
1993 Make the SOLVER_FORCEBEST job option consider only packages that
1994 meet the policies for installed packages, i.e. no downgrades,
1995 no architecture change, no vendor change (see the first flags
1996 of this section). If the flag is not specified, the solver will
1997 enforce the installation of the best package ignoring the
1998 installed packages, which may conflict with the set policy.
2000 *SOLVER_FLAG_NO_AUTOTARGET*::
2001 Do not enable auto-targeting up update and distupgrade jobs. See
2002 the section on targeted updates for more information.
2006 *SOLVER_RULE_UNKNOWN*::
2007 A rule of an unknown class. You should never encounter those.
2010 A package dependency rule, called rpm rule for historical reasons.
2012 *SOLVER_RULE_UPDATE*::
2013 A rule to implement the update policy of installed packages. Every
2014 installed package has an update rule that consists of the packages
2015 that may replace the installed package.
2017 *SOLVER_RULE_FEATURE*::
2018 Feature rules are fallback rules used when a update rule is disabled. They
2019 include all packages that may replace the installed package ignoring the
2020 update policy, i.e. they contain downgrades, arch changes and so on.
2021 Without them, the solver would simply erase installed packages if their
2022 update rule gets disabled.
2025 Job rules implement the job given to the solver.
2027 *SOLVER_RULE_DISTUPGRADE*::
2028 This are simple negative assertions that make sure that only packages
2029 are kept that are also available in one of the repositories.
2031 *SOLVER_RULE_INFARCH*::
2032 Infarch rules are also negative assertions, they disallow the installation
2033 of packages when there are packages of the same name but with a better
2036 *SOLVER_RULE_CHOICE*::
2037 Choice rules are used to make sure that the solver prefers updating to
2038 installing different packages when some dependency is provided by
2039 multiple packages with different names. The solver may always break
2040 choice rules, so you will not see them when a problem is found.
2042 *SOLVER_RULE_LEARNT*::
2043 These rules are generated by the solver to keep it from running into
2044 the same problem multiple times when it has to backtrack. They are
2045 the main reason why a sat solver is faster then other dependency solver
2048 Special dependency rule types:
2050 *SOLVER_RULE_RPM_NOT_INSTALLABLE*::
2051 This rule was added to prevent the installation of a package of an
2052 architecture that does not work on the system.
2054 *SOLVER_RULE_RPM_NOTHING_PROVIDES_DEP*::
2055 The package contains a required dependency which was not provided by
2058 *SOLVER_RULE_RPM_PACKAGE_REQUIRES*::
2059 Similar to SOLVER_RULE_RPM_NOTHING_PROVIDES_DEP, but in this case
2060 some packages provided the dependency but none of them could be
2061 installed due to other dependency issues.
2063 *SOLVER_RULE_RPM_SELF_CONFLICT*::
2064 The package conflicts with itself. This is not allowed by older rpm
2067 *SOLVER_RULE_RPM_PACKAGE_CONFLICT*::
2068 To fulfill the dependencies two packages need to be installed, but
2069 one of the packages contains a conflict with the other one.
2071 *SOLVER_RULE_RPM_SAME_NAME*::
2072 The dependencies can only be fulfilled by multiple versions of
2073 a package, but installing multiple versions of the same package
2076 *SOLVER_RULE_RPM_PACKAGE_OBSOLETES*::
2077 To fulfill the dependencies two packages need to be installed, but
2078 one of the packages obsoletes the other one.
2080 *SOLVER_RULE_RPM_IMPLICIT_OBSOLETES*::
2081 To fulfill the dependencies two packages need to be installed, but
2082 one of the packages has provides a dependency that is obsoleted
2083 by the other one. See the POOL_FLAG_IMPLICITOBSOLETEUSESPROVIDES
2086 *SOLVER_RULE_RPM_INSTALLEDPKG_OBSOLETES*::
2087 To fulfill the dependencies a package needs to be installed that is
2088 obsoleted by an installed package. See the POOL_FLAG_NOINSTALLEDOBSOLETES
2091 *SOLVER_RULE_JOB_NOTHING_PROVIDES_DEP*::
2092 The user asked for installation of a package providing a specific
2093 dependency, but no available package provides it.
2095 *SOLVER_RULE_JOB_UNKNOWN_PACKAGE*::
2096 The user asked for installation of a package with a specific name,
2097 but no available package has that name.
2099 *SOLVER_RULE_JOB_PROVIDED_BY_SYSTEM*::
2100 The user asked for the erasure of a dependency that is provided by the
2101 system (i.e. for special hardware or language dependencies), this
2102 cannot be done with a job.
2104 *SOLVER_RULE_JOB_UNSUPPORTED*::
2105 The user asked for something that is not yet implemented, e.g. the
2106 installation of all packages at once.
2108 Policy error constants
2110 *POLICY_ILLEGAL_DOWNGRADE*::
2111 The solver ask for permission before downgrading packages.
2113 *POLICY_ILLEGAL_ARCHCHANGE*::
2114 The solver ask for permission before changing the architecture of installed
2117 *POLICY_ILLEGAL_VENDORCHANGE*::
2118 The solver ask for permission before changing the vendor of installed
2121 *POLICY_ILLEGAL_NAMECHANGE*::
2122 The solver ask for permission before replacing an installed packages with
2123 a package that has a different name.
2125 Solution element type constants
2127 *SOLVER_SOLUTION_JOB*::
2128 The problem can be solved by removing the specified job.
2130 *SOLVER_SOLUTION_POOLJOB*::
2131 The problem can be solved by removing the specified job that is defined
2134 *SOLVER_SOLUTION_INFARCH*::
2135 The problem can be solved by allowing the installation of the specified
2136 package with an inferior architecture.
2138 *SOLVER_SOLUTION_DISTUPGRADE*::
2139 The problem can be solved by allowing to keep the specified package
2142 *SOLVER_SOLUTION_BEST*::
2143 The problem can be solved by allowing to install the specified package
2144 that is not the best available package.
2146 *SOLVER_SOLUTION_ERASE*::
2147 The problem can be solved by allowing to erase the specified package.
2149 *SOLVER_SOLUTION_REPLACE*::
2150 The problem can be solved by allowing to replace the package with some
2153 *SOLVER_SOLUTION_REPLACE_DOWNGRADE*::
2154 The problem can be solved by allowing to replace the package with some
2155 other package that has a lower version.
2157 *SOLVER_SOLUTION_REPLACE_ARCHCHANGE*::
2158 The problem can be solved by allowing to replace the package with some
2159 other package that has a different architecture.
2161 *SOLVER_SOLUTION_REPLACE_VENDORCHANGE*::
2162 The problem can be solved by allowing to replace the package with some
2163 other package that has a different vendor.
2165 *SOLVER_SOLUTION_REPLACE_NAMECHANGE*::
2166 The problem can be solved by allowing to replace the package with some
2167 other package that has a different name.
2172 Pool *pool; /* read only */
2177 Back pointer to pool.
2181 int set_flag(int flag, int value)
2182 my $oldvalue = $pool->set_flag($flag, $value);
2183 oldvalue = pool.set_flag(flag, value)
2184 oldvalue = pool.set_flag(flag, value)
2186 int get_flag(int flag)
2187 my $value = $pool->get_flag($flag);
2188 value = pool.get_flag(flag)
2189 value = pool.get_flag(flag)
2191 Set/get a solver specific flag. The flags define the policies the solver has
2192 to obey. The flags are explained in the CONSTANTS section of this class.
2194 Problem *solve(Job *jobs)
2195 my @problems = $solver->solve(\@jobs);
2196 problems = solver.solve(jobs)
2197 problems = solver.solve(jobs)
2199 Solve a problem specified in the job list (plus the jobs defined in the pool).
2200 Returns an array of problems that need user interaction, or an empty array
2201 if no problems were encountered. See the Problem class on how to deal with
2204 Transaction transaction()
2205 my $trans = $solver->transaction();
2206 trans = solver.transaction()
2207 trans = solver.transaction()
2209 Return the transaction to implement the calculated package changes. A transaction
2210 is available even if problems were found, this is useful for interactive user
2211 interfaces that show both the job result and the problems.
2215 Problems are the way of the solver to interact with the user. You can simply list
2216 all problems and terminate your program, but a better way is to present solutions to
2217 the user and let him pick the ones he likes.
2221 Solver *solv; /* read only */
2226 Back pointer to solver object.
2228 Id id; /* read only */
2233 Id of the problem. The first problem has Id 1, they are numbered consecutively.
2237 Rule findproblemrule()
2238 my $probrule = $problem->findproblemrule();
2239 probrule = problem.findproblemrule()
2240 probrule = problem.findproblemrule()
2242 Return the rule that caused the problem. Of course in most situations there is no
2243 single responsible rule, but many rules that interconnect with each created the
2244 problem. Nevertheless, the solver uses some heuristic approach to find a rule
2245 that somewhat describes the problem best to the user.
2247 Rule *findallproblemrules(bool unfiltered = 0)
2248 my @probrules = $problem->findallproblemrules();
2249 probrules = problem.findallproblemrule()
2250 probrules = problem.findallproblemrule()
2252 Return all rules responsible for the problem. The returned set of rules contains
2253 all the needed information why there was a problem, but it's hard to present
2254 them to the user in a sensible way. The default is to filter out all update and
2255 job rules (unless the returned rules only consist of those types).
2257 Solution *solutions()
2258 my @solutions = $problem->solutions();
2259 solutions = problem.solutions()
2260 solutions = problem.solutions()
2262 Return an array containing multiple possible solutions to fix the problem. See
2263 the solution class for more information.
2265 int solution_count()
2266 my $cnt = $problem->solution_count();
2267 cnt = problem.solution_count()
2268 cnt = problem.solution_count()
2270 Return the number of solutions without creating solution objects.
2274 Rules are the basic block of sat solving. Each package dependency gets translated
2275 into one or multiple rules.
2279 Solver *solv; /* read only */
2284 Back pointer to solver object.
2286 Id id; /* read only */
2293 int type; /* read only */
2298 The basic type of the rule. See the constant section of the solver class for the type list.
2303 my $ruleinfo = $rule->info();
2304 ruleinfo = rule.info()
2305 ruleinfo = rule.info()
2307 Return a Ruleinfo object that contains information about why the rule was created. But
2308 see the allinfos() method below.
2310 Ruleinfo *allinfos()
2311 my @ruleinfos = $rule->allinfos();
2312 ruleinfos = rule.allinfos()
2313 ruleinfos = rule.allinfos()
2315 As the same dependency rule can get created because of multiple dependencies, one
2316 Ruleinfo is not enough to describe the reason. Thus the allinfos() method returns
2317 an array of all infos about a rule.
2320 if ($rule1 == $rule2)
2324 Two rules are equal if they belong to the same solver and have the same id.
2328 A Ruleinfo describes one reason why a rule was created.
2332 Solver *solv; /* read only */
2337 Back pointer to solver object.
2339 int type; /* read only */
2344 The type of the ruleinfo. See the constant section of the solver class for the
2345 rule type list and the special type list.
2347 Dep *dep; /* read only */
2352 The dependency leading to the creation of the rule.
2354 Dep *dep_id; /* read only */
2355 $ruleinfo->{'dep_id'}
2359 The Id of the dependency leading to the creation of the rule, or zero.
2361 Solvable *solvable; /* read only */
2362 $ruleinfo->{solvable}
2366 The involved Solvable, e.g. the one containing the dependency.
2368 Solvable *othersolvable; /* read only */
2369 $ruleinfo->{othersolvable}
2370 ruleinfo.othersolvable
2371 ruleinfo.othersolvable
2373 The other involved Solvable (if any), e.g. the one containing providing
2374 the dependency for conflicts.
2376 const char *problemstr();
2377 my $str = $ruleinfo->problemstr();
2378 str = ruleinfo.problemstr()
2379 str = ruleinfo.problemstr()
2381 A string describing the ruleinfo from a problem perspective. This probably
2382 only makes sense if the rule is part of a problem.
2386 A solution solves one specific problem. It consists of multiple solution elements
2387 that all need to be executed.
2391 Solver *solv; /* read only */
2396 Back pointer to solver object.
2398 Id problemid; /* read only */
2399 $solution->{problemid}
2403 Id of the problem the solution solves.
2405 Id id; /* read only */
2410 Id of the solution. The first solution has Id 1, they are numbered consecutively.
2414 Solutionelement *elements(bool expandreplaces = 0)
2415 my @solutionelements = $solution->elements();
2416 solutionelements = solution.elements()
2417 solutionelements = solution.elements()
2419 Return an array containing the elements describing what needs to be done to
2420 implement the specific solution. If expandreplaces is true, elements of type
2421 SOLVER_SOLUTION_REPLACE will be replaced by one or more elements replace
2422 elements describing the policy mismatches.
2425 my $cnt = $solution->solution_count();
2426 cnt = solution.element_count()
2427 cnt = solution.element_count()
2429 Return the number of solution elements without creating objects. Note that the
2430 count does not match the number of objects returned by the elements() method
2431 of expandreplaces is set to true.
2434 The Solutionelement Class
2435 -------------------------
2436 A solution element describes a single action of a solution. The action is always
2437 either to remove one specific job or to add a new job that installs or erases
2438 a single specific package.
2442 Solver *solv; /* read only */
2443 $solutionelement->{solv}
2444 solutionelement.solv
2445 solutionelement.solv
2447 Back pointer to solver object.
2449 Id problemid; /* read only */
2450 $solutionelement->{problemid}
2451 solutionelement.problemid
2452 solutionelement.problemid
2454 Id of the problem the element (partly) solves.
2456 Id solutionid; /* read only */
2457 $solutionelement->{solutionid}
2458 solutionelement.solutionid
2459 solutionelement.solutionid
2461 Id of the solution the element is a part of.
2463 Id id; /* read only */
2464 $solutionelement->{id}
2468 Id of the solution element. The first element has Id 1, they are numbered consecutively.
2470 Id type; /* read only */
2471 $solutionelement->{type}
2472 solutionelement.type
2473 solutionelement.type
2475 Type of the solution element. See the constant section of the solver class for the
2478 Solvable *solvable; /* read only */
2479 $solutionelement->{solvable}
2480 solutionelement.solvable
2481 solutionelement.solvable
2483 The installed solvable that needs to be replaced for replacement elements.
2485 Solvable *replacement; /* read only */
2486 $solutionelement->{replacement}
2487 solutionelement.replacement
2488 solutionelement.replacement
2490 The solvable that needs to be installed to fix the problem.
2492 int jobidx; /* read only */
2493 $solutionelement->{jobidx}
2494 solutionelement.jobidx
2495 solutionelement.jobidx
2497 The index of the job that needs to be removed to fix the problem, or -1 if the
2498 element is of another type. Note that it's better to change the job to SOLVER_NOOP
2499 type so that the numbering of other elements does not get disturbed. This
2500 method works both for types SOLVER_SOLUTION_JOB and SOLVER_SOLUTION_POOLJOB.
2504 Solutionelement *replaceelements()
2505 my @solutionelements = $solutionelement->replaceelements();
2506 solutionelements = solutionelement.replaceelements()
2507 solutionelements = solutionelement.replaceelements()
2509 If the solution element is of type SOLVER_SOLUTION_REPLACE, return an array of
2510 elements describing the policy mismatches, otherwise return a copy of the
2511 element. See also the ``expandreplaces'' option in the solution's elements()
2514 int illegalreplace()
2515 my $illegal = $solutionelement->illegalreplace();
2516 illegal = solutionelement.illegalreplace()
2517 illegal = solutionelement.illegalreplace()
2519 Return an integer that contains the policy mismatch bits or-ed together, or
2520 zero if there was no policy mismatch. See the policy error constants in
2524 my $job = $solutionelement->Job();
2525 illegal = solutionelement.Job()
2526 illegal = solutionelement.Job()
2528 Create a job that implements the solution element. Add this job to the array
2529 of jobs for all elements of type different to SOLVER_SOLUTION_JOB and
2530 SOLVER_SOLUTION_POOLJOB. For the later two, a SOLVER_NOOB Job is created,
2531 you should replace the old job with the new one.
2534 my $str = $solutionelement->str();
2535 str = solutionelement.str()
2536 str = solutionelement.str()
2538 A string describing the change the solution element consists of.
2540 The Transaction Class
2541 ---------------------
2542 Transactions describe the output of a solver run. A transaction contains
2543 a number of transaction elements, each either the installation of a new
2544 package or the removal of an already installed package. The Transaction
2545 class supports a classify() method that puts the elements into different
2546 groups so that a transaction can be presented to the user in a meaningful
2551 Transaction element types, both active and passive
2553 *SOLVER_TRANSACTION_IGNORE*::
2554 This element does nothing. Used to map element types that do not match
2557 *SOLVER_TRANSACTION_INSTALL*::
2558 This element installs a package.
2560 *SOLVER_TRANSACTION_ERASE*::
2561 This element erases a package.
2563 *SOLVER_TRANSACTION_MULTIINSTALL*::
2564 This element installs a package with a different version keeping the other
2567 *SOLVER_TRANSACTION_MULTIREINSTALL*::
2568 This element reinstalls a installed package keeping the other versions
2571 Transaction element types, active view
2573 *SOLVER_TRANSACTION_REINSTALL*::
2574 This element re-installs a package, i.e. installs the same package again.
2576 *SOLVER_TRANSACTION_CHANGE*::
2577 This element installs a package with same name, version, architecture but
2580 *SOLVER_TRANSACTION_UPGRADE*::
2581 This element installs a newer version of an installed package.
2583 *SOLVER_TRANSACTION_DOWNGRADE*::
2584 This element installs a older version of an installed package.
2586 *SOLVER_TRANSACTION_OBSOLETES*::
2587 This element installs a package that obsoletes an installed package.
2589 Transaction element types, passive view
2591 *SOLVER_TRANSACTION_REINSTALLED*::
2592 This element re-installs a package, i.e. installs the same package again.
2594 *SOLVER_TRANSACTION_CHANGED*::
2595 This element replaces an installed package with one of the same name,
2596 version, architecture but different content.
2598 *SOLVER_TRANSACTION_UPGRADED*::
2599 This element replaces an installed package with a new version.
2601 *SOLVER_TRANSACTION_DOWNGRADED*::
2602 This element replaces an installed package with an old version.
2604 *SOLVER_TRANSACTION_OBSOLETED*::
2605 This element replaces an installed package with a package that obsoletes
2608 Pseudo element types for showing extra information used by classify()
2610 *SOLVER_TRANSACTION_ARCHCHANGE*::
2611 This element replaces an installed package with a package of a different
2614 *SOLVER_TRANSACTION_VENDORCHANGE*::
2615 This element replaces an installed package with a package of a different
2618 Transaction mode flags
2620 *SOLVER_TRANSACTION_SHOW_ACTIVE*::
2621 Filter for active view types. The default is to return passive view type,
2622 i.e. to show how the installed packages get changed.
2624 *SOLVER_TRANSACTION_SHOW_OBSOLETES*::
2625 Do not map the obsolete view type into INSTALL/ERASE elements.
2627 *SOLVER_TRANSACTION_SHOW_ALL*::
2628 If multiple packages replace an installed package, only the best of them
2629 is kept as OBSOLETE element, the other ones are mapped to INSTALL/ERASE
2630 elements. This is because most applications want to show just one package
2631 replacing the installed one. The SOLVER_TRANSACTION_SHOW_ALL makes the
2632 library keep all OBSOLETE elements.
2634 *SOLVER_TRANSACTION_SHOW_MULTIINSTALL*::
2635 The library maps MULTIINSTALL elements to simple INSTALL elements. This
2636 flag can be used to disable the mapping.
2638 *SOLVER_TRANSACTION_CHANGE_IS_REINSTALL*::
2639 Use this flag if you want to map CHANGE elements to the REINSTALL type.
2641 *SOLVER_TRANSACTION_OBSOLETE_IS_UPGRADE*::
2642 Use this flag if you want to map OBSOLETE elements to the UPGRADE type.
2644 *SOLVER_TRANSACTION_MERGE_ARCHCHANGES*::
2645 Do not add extra categories for every architecture change, instead cumulate
2646 them in one category.
2648 *SOLVER_TRANSACTION_MERGE_VENDORCHANGES*::
2649 Do not add extra categories for every vendor change, instead cumulate
2650 them in one category.
2652 *SOLVER_TRANSACTION_RPM_ONLY*::
2653 Special view mode that just returns IGNORE, ERASE, INSTALL, MULTIINSTALL
2654 elements. Useful if you want to find out what to feed to the underlying
2657 Transaction order flags
2659 *SOLVER_TRANSACTION_KEEP_ORDERDATA*::
2660 Do not throw away the dependency graph used for ordering the transaction.
2661 This flag is needed if you want to do manual ordering.
2665 Pool *pool; /* read only */
2670 Back pointer to pool.
2679 Returns true if the transaction does not do anything, i.e. has no elements.
2681 Solvable *newsolvables();
2682 my @newsolvables = $trans->newsolvables();
2683 newsolvables = trans.newsolvables()
2684 newsolvables = trans.newsolvables()
2686 Return all packages that are to be installed by the transaction. This are
2687 the packages that need to be downloaded from the repositories.
2689 Solvable *keptsolvables();
2690 my @keptsolvables = $trans->keptsolvables();
2691 keptsolvables = trans.keptsolvables()
2692 keptsolvables = trans.keptsolvables()
2694 Return all installed packages that the transaction will keep installed.
2697 my @steps = $trans->steps();
2698 steps = trans.steps()
2699 steps = trans.steps()
2701 Return all solvables that need to be installed (if the returned solvable
2702 is not already installed) or erased (if the returned solvable is installed).
2703 A step is also called a transaction element.
2705 int steptype(Solvable *solvable, int mode)
2706 my $type = $trans->steptype($solvable, $mode);
2707 type = trans.steptype(solvable, mode)
2708 type = trans.steptype(solvable, mode)
2710 Return the transaction type of the specified solvable. See the CONSTANTS
2711 sections for the mode argument flags and the list of returned types.
2713 TransactionClass *classify(int mode = 0)
2714 my @classes = $trans->classify();
2715 classes = trans.classify()
2716 classes = trans.classify()
2718 Group the transaction elements into classes so that they can be displayed
2719 in a structured way. You can use various mapping mode flags to tweak
2720 the result to match your preferences, see the mode argument flag in
2721 the CONSTANTS section. See the TransactionClass class for how to deal
2722 with the returned objects.
2724 Solvable othersolvable(Solvable *solvable);
2725 my $other = $trans->othersolvable($solvable);
2726 other = trans.othersolvable(solvable)
2727 other = trans.othersolvable(solvable)
2729 Return the ``other'' solvable for a given solvable. For installed packages
2730 the other solvable is the best package with the same name that replaces
2731 the installed package, or the best package of the obsoleting packages if
2732 the package does not get replaced by one with the same name.
2734 For to be installed packages, the ``other'' solvable is the best installed
2735 package with the same name that will be replaced, or the best packages
2736 of all the packages that are obsoleted if the new package does not replace
2737 a package with the same name.
2739 Thus, the ``other'' solvable is normally the package that is also shown
2740 for a given package.
2742 Solvable *allothersolvables(Solvable *solvable);
2743 my @others = $trans->allothersolvables($solvable);
2744 others = trans.allothersolvables(solvable)
2745 others = trans.allothersolvables(solvable)
2747 For installed packages, returns all of the packages that replace us. For to
2748 be installed packages, returns all of the packages that the new package
2749 replaces. The special ``other'' solvable is always the first entry of the
2752 int calc_installsizechange();
2753 my $change = $trans->calc_installsizechange();
2754 change = trans.calc_installsizechange()
2755 change = trans.calc_installsizechange()
2757 Return the size change of the installed system in kilobytes (kibibytes).
2759 void order(int flags = 0);
2764 Order the steps in the transactions so that dependant packages are updated
2765 before packages that depend on them. For rpm, you can also use rpmlib's
2766 ordering functionality, debian's dpkg does not provide a way to order a
2769 === ACTIVE/PASSIVE VIEW ===
2771 Active view list what new packages get installed, while passive view shows
2772 what happens to the installed packages. Most often there's not much
2773 difference between the two modes, but things get interesting of multiple
2774 package get replaced by one new package. Say you have installed package
2775 A-1-1 and B-1-1, and now install A-2-1 with has a new dependency that
2776 obsoletes B. The transaction elements will be
2778 updated A-1-1 (other: A-2-1)
2779 obsoleted B-1-1 (other: A-2-1)
2781 in passive mode, but
2783 update A-2-1 (other: A-1-1)
2786 in active mode. If the mode contains SOLVER_TRANSACTION_SHOW_ALL, the
2787 passive mode list will be unchanged but the active mode list will just
2790 The Transactionclass Class
2791 --------------------------
2792 Objects of this type are returned by the classify() Transaction method.
2796 Transaction *transaction; /* read only */
2797 $class->{transaction}
2801 Back pointer to transaction object.
2803 int type; /* read only */
2808 The type of the transaction elements in the class.
2810 int count; /* read only */
2815 The number of elements in the class.
2817 const char *fromstr;
2822 The old vendor or architecture.
2829 The new vendor or architecture.
2836 The id of the old vendor or architecture.
2843 The id of the new vendor or architecture.
2848 my @solvables = $class->solvables();
2849 solvables = class.solvables()
2850 solvables = class.solvables()
2852 Return the solvables for all transaction elements in the class.
2856 Checksums (also called hashes) are used to make sure that downloaded data is
2857 not corrupt and also as a fingerprint mechanism to check if data has changed.
2859 === CLASS METHODS ===
2861 Chksum Chksum(Id type)
2862 my $chksum = solv::Chksum->new($type);
2863 chksum = solv.Chksum(type)
2864 chksum = Solv::Chksum.new(type)
2866 Create a checksum object. Currently the following types are supported:
2872 These keys are constants in the *solv* class.
2874 Chksum Chksum(Id type, const char *hex)
2875 my $chksum = solv::Chksum->new($type, $hex);
2876 chksum = solv.Chksum(type, hex)
2877 chksum = Solv::Chksum.new(type, hex)
2879 Create an already finalized checksum object.
2883 Id type; /* read only */
2888 Return the type of the checksum object.
2892 void add(const char *str)
2897 Add a string to the checksum.
2899 void add_fp(FILE *fp)
2900 $chksum->add_fp($file);
2904 Add the contents of a file to the checksum.
2906 void add_stat(const char *filename)
2907 $chksum->add_stat($filename);
2908 chksum.add_stat(filename)
2909 chksum.add_stat(filename)
2911 Stat the file and add the dev/ino/size/mtime member to the checksum. If the
2912 stat fails, the members are zeroed.
2914 void add_fstat(int fd)
2915 $chksum->add_fstat($fd);
2916 chksum.add_fstat(fd)
2917 chksum.add_fstat(fd)
2919 Same as add_stat, but instead of the filename a file descriptor is used.
2921 unsigned char *raw()
2922 my $raw = $chksum->raw();
2926 Finalize the checksum and return the result as raw bytes. This means that the
2927 result can contain NUL bytes or unprintable characters.
2930 my $raw = $chksum->hex();
2934 Finalize the checksum and return the result as hex string.
2937 if ($chksum1 == $chksum2)
2938 if chksum1 == chksum2:
2939 if chksum1 == chksum2
2941 Checksums are equal if they are of the same type and the finalized results are
2945 my $str = $chksum->str;
2949 If the checksum is finished, the checksum is returned as "<type>:<hex>" string.
2950 Otherwise "<type>:unfinished" is returned.
2955 This functions were added because libsolv uses standard *FILE* pointers to
2956 read/write files, but languages like perl have their own implementation of
2957 files. The libsolv functions also support decompression and compression, the
2958 algorithm is selected by looking at the file name extension.
2960 FILE *xfopen(char *fn, char *mode = "r")
2961 my $file = solv::xfopen($path);
2962 file = solv.xfopen(path)
2963 file = Solv::xfopen(path)
2965 Open a file at the specified path. The `mode` argument is passed on to the
2968 FILE *xfopen_fd(char *fn, int fileno)
2969 my $file = solv::xfopen_fd($path, $fileno);
2970 file = solv.xfopen_fd(path, fileno)
2971 file = Solv::xfopen_fd(path, fileno)
2973 Create a file handle from the specified file descriptor. The path argument is
2974 only used to select the correct (de-)compression algorithm, use an empty path
2975 if you want to make sure to read/write raw data.
2980 my $fileno = $file->fileno();
2981 fileno = file.fileno()
2982 fileno = file.fileno()
2984 Return file file descriptor of the file. If the file is not open, `-1` is
2988 my $fileno = $file->dup();
2992 Return a copy of the descriptor of the file. If the file is not open, `-1` is
3000 Flush the file. Returns false if there was an error. Flushing a closed file
3001 always returns true.
3008 Close the file. This is needed for languages like Ruby, that do not destruct
3009 objects right after they are no longer referenced. In that case, it is good
3010 style to close open files so that the file descriptors are freed right away.
3011 Returns false if there was an error.
3016 The Repodata stores attributes for packages and the repository itself, each
3017 repository can have multiple repodata areas. You normally only need to
3018 directly access them if you implement lazy downloading of repository data.
3019 Repodata areas are created by calling the repository's add_repodata() method
3020 or by using repo_add methods without the REPO_REUSE_REPODATA or REPO_USE_LOADING
3025 Repo *repo; /* read only */
3030 Back pointer to repository object.
3032 Id id; /* read only */
3037 The id of the repodata area. Repodata ids of different repositories overlap.
3042 $data->internalize();
3046 Internalize newly added data. The lookup functions will only see the new data
3047 after it has been internalized.
3049 bool write(FILE *fp);
3054 Write the contents of the repodata area as solv file.
3056 bool add_solv(FILE *fp, int flags = 0);
3057 $data->add_solv($fp);
3061 Replace a stub repodata object with the data from a solv file. This method
3062 automatically adds the REPO_USE_LOADING flag. It should only be used from
3065 void create_stubs();
3066 $data->create_stubs()
3070 Create stub repodatas from the information stored in the repodata meta
3073 void extend_to_repo();
3074 $data->extend_to_repo();
3075 data.extend_to_repo()
3076 data.extend_to_repo()
3078 Extend the repodata so that it has the same size as the repo it belongs to.
3079 This method is only needed when switching to a just written repodata extension
3080 to make the repodata match the written extension (which is always of the
3084 if ($data1 == $data2)
3088 Two repodata objects are equal if they belong to the same repository and have
3091 === DATA RETRIEVAL METHODS ===
3093 const char *lookup_str(Id solvid, Id keyname)
3094 my $string = $data->lookup_str($solvid, $keyname);
3095 string = data.lookup_str(solvid, keyname)
3096 string = data.lookup_str(solvid, keyname)
3098 Id *lookup_idarray(Id solvid, Id keyname)
3099 my @ids = $data->lookup_idarray($solvid, $keyname);
3100 ids = data.lookup_idarray(solvid, keyname)
3101 ids = data.lookup_idarray(solvid, keyname)
3103 Chksum lookup_checksum(Id solvid, Id keyname)
3104 my $chksum = $data->lookup_checksum($solvid, $keyname);
3105 chksum = data.lookup_checksum(solvid, keyname)
3106 chksum = data.lookup_checksum(solvid, keyname)
3108 Lookup functions. Return the data element stored in the specified solvable.
3109 The methods probably only make sense to retrieve data from the special
3110 SOLVID_META solvid that stores repodata meta information.
3112 === DATA STORAGE METHODS ===
3114 void set_id(Id solvid, Id keyname, DepId id);
3115 $data->set_id($solvid, $keyname, $id);
3116 data.set_id(solvid, keyname, id)
3117 data.set_id(solvid, keyname, id)
3119 void set_str(Id solvid, Id keyname, const char *str);
3120 $data->set_str($solvid, $keyname, $str);
3121 data.set_str(solvid, keyname, str)
3122 data.set_str(solvid, keyname, str)
3124 void set_poolstr(Id solvid, Id keyname, const char *str);
3125 $data->set_poolstr($solvid, $keyname, $str);
3126 data.set_poolstr(solvid, keyname, str)
3127 data.set_poolstr(solvid, keyname, str)
3129 void set_checksum(Id solvid, Id keyname, Chksum *chksum);
3130 $data->set_checksum($solvid, $keyname, $chksum);
3131 data.set_checksum(solvid, keyname, chksum)
3132 data.set_checksum(solvid, keyname, chksum)
3134 void add_idarray(Id solvid, Id keyname, DepId id);
3135 $data->add_idarray($solvid, $keyname, $id);
3136 data.add_idarray(solvid, keyname, id)
3137 data.add_idarray(solvid, keyname, id)
3140 my $handle = $data->new_handle();
3141 handle = data.new_handle()
3142 handle = data.new_handle()
3144 void add_flexarray(Id solvid, Id keyname, Id handle);
3145 $data->add_flexarray($solvid, $keyname, $handle);
3146 data.add_flexarray(solvid, keyname, handle)
3147 data.add_flexarray(solvid, keyname, handle)
3149 Data storage methods. Probably only useful to store data in the special
3150 SOLVID_META solvid that stores repodata meta information. Note that
3151 repodata areas can have their own Id pool (see the REPO_LOCALPOOL flag),
3152 so be careful if you need to store ids. Arrays are created by calling
3153 the add function for every element. A flexarray is an array of
3154 sub-structures, call new_handle to create a new structure, use the
3155 handle as solvid to fill the structure with data and call add_flexarray
3156 to put the structure in an array.
3161 Datapos objects describe a specific position in the repository data area.
3162 Thus they are only valid until the repository is modified in some way.
3163 Datapos objects can be created by the pos() and parentpos() methods of
3164 a Datamatch object or by accessing the ``meta'' attribute of a repository.
3168 Repo *repo; /* read only */
3173 Back pointer to repository object.
3177 Dataiterator(Id keyname, const char *match, int flags)
3178 my $di = $datapos->Dataiterator($keyname, $match, $flags);
3179 di = datapos.Dataiterator(keyname, match, flags)
3180 di = datapos.Dataiterator(keyname, match, flags)
3182 Create a Dataiterator at the position of the datapos object.
3184 const char *lookup_deltalocation(unsigned int *OUTPUT);
3185 my ($location, $medianr) = $datapos->lookup_deltalocation();
3186 location, medianr = datapos.lookup_deltalocation()
3187 location, medianr = datapos.lookup_deltalocation()
3189 Return a tuple containing the on-media location and an optional media number
3190 for a delta rpm. This obviously only works if the data position points to
3191 structure describing a delta rpm.
3193 const char *lookup_deltaseq();
3194 my $seq = $datapos->lookup_deltaseq();
3195 seq = datapos.lookup_deltaseq();
3196 seq = datapos.lookup_deltaseq();
3198 Return the delta rpm sequence from the structure describing a delta rpm.
3200 === DATA RETRIEVAL METHODS ===
3202 const char *lookup_str(Id keyname)
3203 my $string = $datapos->lookup_str($keyname);
3204 string = datapos.lookup_str(keyname)
3205 string = datapos.lookup_str(keyname)
3207 Id lookup_id(Id solvid, Id keyname)
3208 my $id = $datapos->lookup_id($keyname);
3209 id = datapos.lookup_id(keyname)
3210 id = datapos.lookup_id(keyname)
3212 unsigned long long lookup_num(Id keyname, unsigned long long notfound = 0)
3213 my $num = $datapos->lookup_num($keyname);
3214 num = datapos.lookup_num(keyname)
3215 num = datapos.lookup_num(keyname)
3217 bool lookup_void(Id keyname)
3218 my $bool = $datapos->lookup_void($keyname);
3219 bool = datapos.lookup_void(keyname)
3220 bool = datapos.lookup_void(keyname)
3222 Id *lookup_idarray(Id keyname)
3223 my @ids = $datapos->lookup_idarray($keyname);
3224 ids = datapos.lookup_idarray(keyname)
3225 ids = datapos.lookup_idarray(keyname)
3227 Chksum lookup_checksum(Id keyname)
3228 my $chksum = $datapos->lookup_checksum($keyname);
3229 chksum = datapos.lookup_checksum(keyname)
3230 chksum = datapos.lookup_checksum(keyname)
3232 Lookup functions. Note that the returned Ids are always translated into
3233 the Ids of the global pool even if the repodata area contains its own pool.
3237 Michael Schroeder <mls@suse.de>