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path: root/lib/libalpm/conflict.c
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* conflict.c: fix directory ownership checkAndrew Gregory2013-08-21
| | | | | | | | | * append "/" to directories before searching package file lists * use lstat over stat so symlinks aren't resolved * fix the inverted check for stat's return value Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* improve dir->file transition conflict resolutionAndrew Gregory2013-06-03
| | | | | | | | | | | | | | | | | Packages removed due to conflicts are always removed at the beginning of the transaction and as such can be included in the check for whether all owners of a directory will be removed in a transaction. Installed versions of packages being upgraded, other than the one with the conflict, cannot be used because our transaction ordering is not intelligent enough to ensure that they are removed prior to the installation of the conflicted package. Also, return false from dir_belongsto_pkgs on errors. Previously, we simply continued which could return true even if we were unable to actually establish that the package owned the entire tree. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* conflict.c: check for file -> dir replacementsAndrew Gregory2013-06-03
| | | | | Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* conflict.c: exclude trailing slash from file pathAndrew Gregory2013-06-03
| | | | | | | | | After the initial checks, we either use the path as a directory and have to append the trailing slash anyway or use it as a file in which case the trailing slash should be excluded. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* conflict.c: do not ignore symlink<->dir conflictsAndrew Gregory2013-06-03
| | | | | Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* alpm_filelist: remove resolved_pathAndrew Gregory2013-06-03
| | | | | Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* conflict.c: compare package pointers directlyAndrew Gregory2013-05-05
| | | | | | | | | | p1 and p2 both come directly from the upgrade list without being copied so they can be compared directly instead of comparing their names. Also fix minor style violation. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* Perform limited conflict checking with --forceAllan McRae2013-02-24
| | | | | | | | | | | | Pacman currently bails when trying to extract a file over a directory when using --force. Instead of ignoring all conflict, perform the check and skip any file-file conflicts. Conflicts between directories and files are still flagged and cause the transation to abort. As a bonus, we now know about files changing packages when using --force, so we can skip removing them fixing upgrade046. Signed-off-by: Allan McRae <allan@archlinux.org>
* use resolved_path for filelist_containsAndrew Gregory2013-02-24
| | | | | | | | | | | alpm_filelist_contains was being used to search for resolved paths, but searching in the unresolved paths, causing it to miss matches. We always search unresolved paths and search the resolved paths if available because _alpm_filelist_resolve is not public and requires a context handle, so it can't be called from alpm_filelist_contains. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* return resolved paths from filelist_differenceAndrew Gregory2013-02-24
| | | | | | | | | | | We were comparing files based on resolved paths but returning the original file_t structures, which were not necessarily in the same order. The extra file_t information was only being used to determine if the file was a directory which can be accomplished by testing for a trailing slash, so just return the resolved path. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* return resolved paths from filelist_intersectionAndrew Gregory2013-02-24
| | | | | | | | | | We were comparing files based on resolved paths but returning the original file_t structures, which were not necessarily in the same order. The additional file_t information was never used, so just return the resolved path. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* use alpm_list_free on filelist intersectionAndrew Gregory2013-02-24
| | | | | | | | alpm_filelist_intersection returns a list of pointers to internal file_t struct's, so only the list itself should be freed. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* find_fileconflicts: reduce path resolution callsAndrew Gregory2013-02-16
| | | | | Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* add doxygen comments to conflict.cAndrew Gregory2013-01-28
| | | | | Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
* Fix open braces styleGerardo Exequiel Pozzi2013-01-04
| | | | | Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar> Signed-off-by: Allan McRae <allan@archlinux.org>
* Update copyright year for 2013Allan McRae2013-01-03
| | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* Avoid upgrade conflict with unchanged effective pathAllan McRae2012-12-14
| | | | | | | | | | | | This applies to a case such as when /lib is a symlink to /usr/lib. If a package is installed which contains /lib/libfoo.so, pacman will complain if this package is then "fixed" to contain /usr/lib/libfoo.so. Since these have the same effective path and it exists within the same package, ignore the conflict. Fixes FS#30681. Signed-off-by: Allan McRae <allan@archlinux.org>
* Resolve file paths during inter-package conflict checkAllan McRae2012-12-14
| | | | | | | | File paths are resolved if necessary during inter-package conflict checks so that packages carrying the same effective file due to directory symlinks on the filesystem are flagged as conflicting. Signed-off-by: Allan McRae <allan@archlinux.org>
* Split _alpm_filelist_operation functionAllan McRae2012-08-02
| | | | | | | | | To improve conflict checking, we will need to make these functions diverge to an extent where having two separate functions will be preferable. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Move filelist functions into separate source fileDan McGee2012-08-02
| | | | | | | | | We have a few of these and might as well gather them together. This also cleans up the code a bit by using an enum instead of integer values, as well as makes a "search for file in filelist" function public so frontends can do better than straight linear search of the filelists. Signed-off-by: Dan McGee <dan@archlinux.org>
* Merge branch 'maint'Dan McGee2012-08-01
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| * Add more debug logging to dir_belongsto_pkg() functionDan McGee2012-08-01
| | | | | | | | | | | | Now that we pass in the handle, we might as well add logging. Signed-off-by: Dan McGee <dan@archlinux.org>
* | lib/conflict: use a binary search within filelistsDave Reisner2012-08-01
| | | | | | | | | | | | | | | | | | | | Take advantage of the fact that our filelists are arrays sorted by filename with a known length and use a binary search. This should speed up file conflict checking, particularly when larger packages are involved. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Merge branch 'maint'Dan McGee2012-07-10
|\| | | | | | | | | Conflicts: etc/makepkg.conf.in
| * Check empty subdirectory ownershipAllan McRae2012-07-10
| | | | | | | | | | | | | | | | | | | | | | When checking if a package owns a directory, it is important to check not only that all the files in the directory are part of the package, but also if the directory is part of a package. This catches empty subdirectories during conflict checking for directory to file/symlink replacements. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
| * Add conflict for replacing owned empty directoryAllan McRae2012-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When two packages own an empty directory, pacman finds no conflict when one of those packages wants to replace the directory with a file or a symlink. When it comes to actually extracting the new file/symlink, pacman sees the directory is still there (we do not remove empty directories if they are owned by a package) and refuses to extract. Detect this potential conflict early and bail. Note that it is a _potential_ conflict and not a guaranteed one as the other package owning the directory could be updated or removed first which would remove the conflict. However, pacman currently can not sort package installation order to ensure this, so this conflict requires manual upgrade ordering. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | fix -Wshadow warnings as reported by gcc 4.4.3Dave Reisner2012-05-20
| | | | | | | | | | | | | | | | | | Apparently gcc 4.7 has decided that -Wshadow warnings aren't worth reporting anymore even with the flag enabled. These were found on an Ubuntu 10.04 install. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Move short-lived realpath buffers to the stackDan McGee2012-04-29
| | | | | | | | | | | | | | | | There is little reason here to grab 4K from the heap only to return it a few lines later. Instead, just use the stack to hold the returned value saving ourselves the malloc/free cycle. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Update copyright yearsAllan McRae2012-02-20
| | | | | | | | | | | | | | Add 2012 to the copyright range for all libalpm and pacman source files. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | include config.h via MakefilesDave Reisner2011-12-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensures that config.h is always ordered correctly (first) in the includes. Also means that new source files get this for free without having to remember to add it. We opt for -imacros over -include as its more portable, and the added constraint by -imacros doesn't bother us for config.h. This also touches the HACKING file to remove the explicit mention of config.h as part of the includes. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Calculate root length only once when checking for file conflictsDan McGee2011-12-12
| | | | | | | | | | | | | | | | It is quite easy to hoist this potentially repeated computation out of the loop; even if we don't end up using it, it is super cheap to do it only once. Signed-off-by: Dan McGee <dan@archlinux.org>
* | lib/conflict: save strlen call by reusing snprintf returnDave Reisner2011-12-12
| | | | | | | | | | | | | | | | | | The return should probably be checked to ensure its not longer than PATH_MAX, but I have no idea what the correct behavior is when that happens. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Merge branch 'maint'Dan McGee2011-11-01
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| * Fix issues with replacing unowned symlinksDan McGee2011-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There aretwo seperate issues in the same block of file conflict checking code here: 1) If realpath errored, such as when a symlink was broken, we would call 'continue' rather than simply exit this particular method of resolution. This was likely just a copy-paste mistake as the previous resolving steps all use loops where continue makes sense. Refactor the check so we only proceed if realpath is successful, and continue with the rest of the checks either way. 2) The real problem this code was trying to solve was canonicalizing path component (e.g., directory) symlinks. The final component, if not a directory, should not be handled at all in this loop. Add a !S_ISLNK() condition to the loop so we only call this for real files. There are few other small cleanups to the debug messages that I made while debugging this problem- we don't need to keep printing the file name, and ensure every block that sets resolved_conflict to true prints a debug message so we know how it was resolved. This fixes the expected failures from symlink010.py and symlink011.py, while still ensuring the fix for fileconflict007.py works. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Make _alpm_filelist_contains() NULL-safeDan McGee2011-10-14
|/ | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* Ensure fileconflict value is actually a stringDan McGee2011-09-26
| | | | | | | | | | When we switched to a file object and not just a simple string, we missed an update along the way here in target-target conflicts. This patch looks large, but it really comes down to one errant (char *) cast before that has been reworked to explicitly point to the alpm_file_t object. The rest is simply code cleanup. Signed-off-by: Dan McGee <dan@archlinux.org>
* Former transaction callback rename refactorDan McGee2011-09-02
| | | | | | | | | | | | | Put all the callback stuff in alpm.h in one spot, and make the following renames for clarity with the new structure: ALPM_TRANS_EVT_* --> ALPM_EVENT_* ALPM_TRANS_CONV_* --> ALPM_QUESTION_* ALPM_TRANS_PROGRESS_* --> ALPM_PROGRESS_* alpm_option_get_convcb() --> alpm_option_get_questioncb() alpm_option_set_convcb() --> alpm_option_set_questioncb() Signed-off-by: Dan McGee <dan@archlinux.org>
* Move all callbacks up to the handle levelDan McGee2011-09-02
| | | | | | | | | This was just disgusting before, unnecessary to limit these to only usage in a transaction. Still a lot of more room for cleanup but we'll start by attaching them to the handle rather than the transaction we may or may not even want to use these callbacks. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove outdated comment for _alpm_outerconflictsAllan McRae2011-08-30
| | | | | Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove use of no-op accessor functions in libraryDan McGee2011-08-18
| | | | | | | | | The functions alpm_db_get_name(), alpm_pkg_get_name(), and alpm_pkg_get_version() are not necessary at all, so remove the calling and indirection when used in the backend, which makes things slightly more efficient and reduces code size. Signed-off-by: Dan McGee <dan@archlinux.org>
* Parse conflicts/provides/replaces at database load timeDan McGee2011-08-15
| | | | | | | | | | | | | | | | | | | | | | We did this with depends way back in commit c244cfecf654d3 in 2007. We can do it with these fields as well. Of note is the inclusion of provides even though only '=' is supported- we'll parse other things, but no guarantees are given as to behavior, which is more or less similar to before since we only looked for the equals sign. Also of note is the non-inclusion of optdepends; this will likely be resolved down the road. The biggest benefactors of this change will be the resolving code that formerly had to parse and reparse several of these fields; it only happens once now at load time. This does lead to the disadvantage that we will now always be parsing this information up front even if we never need it in the split form, but as these are uncommon fields and our parser is quite efficient it shouldn't be a big concern. Signed-off-by: Dan McGee <dan@archlinux.org>
* Conflict comparison performance enhancementsDan McGee2011-08-09
| | | | | | | * Add *_hash fields to conflict struct and populate them * Remove unnecessary backwards string comparisons Signed-off-by: Dan McGee <dan@archlinux.org>
* Convert package filelists to an array instead of linked listDan McGee2011-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This accomplishes quite a few things with one rather invasive change. 1. Iteration is much more performant, due to a reduction in pointer chasing and linear item access. 2. Data structures are smaller- we no longer have the overhead of the linked list as the file struts are now laid out consecutively in memory. 3. Memory allocation has been massively reworked. Before, we would allocate three different pieces of memory per file item- the list struct, the file struct, and the copied filename. What this resulted in was massive fragmentation of memory when loading filelists since the memory allocator had to leave holes all over the place. The new situation here now removes the need for any list item allocation; allocates the file structs in contiguous memory (and reallocs as necessary), leaving only the strings as individually allocated. Tests using valgrind (massif) show some pretty significant memory reductions on the worst case `pacman -Ql > /dev/null` (366387 files on my machine): Before: Peak heap: 54,416,024 B Useful heap: 36,840,692 B Extra heap: 17,575,332 B After: Peak heap: 38,004,352 B Useful heap: 28,101,347 B Extra heap: 9,903,005 B Several small helper methods have been introduced, including a list to array conversion helper as well as a filelist merge sort that works directly on arrays. Signed-off-by: Dan McGee <dan@archlinux.org>
* Allow fileconflict if unowned file moving into backup arrayDan McGee2011-07-14
| | | | | | | | | | | The bulk of this commit is adding new tests to ensure the new behavior works without disrupting old behavior. This is a relatively sane maneuver when a package adds a conf file (e.g. '/etc/mercurial/hgrc') that was not previously in the package, but it is placed in the backup array. In essence, we can treat the existing file as having always been a part of the package and do our normal compare/install as pacnew logic checks. Signed-off-by: Dan McGee <dan@archlinux.org>
* Merge remote-tracking branch 'allan/ALPM'Dan McGee2011-07-03
|\ | | | | | | | | | | | | | | | | | | Conflicts: lib/libalpm/be_local.c lib/libalpm/be_package.c lib/libalpm/conflict.c lib/libalpm/diskspace.c lib/libalpm/dload.c lib/libalpm/remove.c
| * Prefix _alpm_errno_t members with ALPMAllan McRae2011-07-02
| | | | | | | | Signed-off-by: Allan McRae <allan@archlinux.org>
| * Prefix alpm_transprog_t members with ALPMAllan McRae2011-07-02
| | | | | | | | Signed-off-by: Allan McRae <allan@archlinux.org>
| * Prefix alpm_loglevel_t members with ALPMAllan McRae2011-07-02
| | | | | | | | Signed-off-by: Allan McRae <allan@archlinux.org>
| * Prefix alpm_fileconflicttype_t members with ALPMAllan McRae2011-07-02
| | | | | | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* | conflict code tweaks and cleanupsDan McGee2011-07-03
| | | | | | | | | | | | | | We can take advantage of a few things on our new and improved filelist in this code. Signed-off-by: Dan McGee <dan@archlinux.org>
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