moparisthebest
/
pacman
mirror of https://github.com/moparisthebest/pacman
1
0
Fork 0
Code Issues Releases Wiki Activity

alpm/dep: add alpm_find_dbs_satisfier 

This is a public interface for resolvedep. It looks nicer to expose it
this way rather than through sync_target.

This function can also be helpful for external tools as it should give
good results close to how pacman select a package for satisfying a given
dep.

Signed-off-by: Xavier Chantry <chantry.xavier@gmail.com>
This commit is contained in:
Xavier Chantry 2010-10-17 00:52:13 +02:00
parent 4097c98c1e
commit b8590ed634
2 changed files with 23 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/libalpm/alpm.h
View File

@ -439,6 +439,7 @@ typedef enum _pmdepmod_t {
alpm_list_t *alpm_checkdeps(alpm_list_t *pkglist, int reversedeps,
alpm_list_t *remove, alpm_list_t *upgrade);
pmpkg_t *alpm_find_satisfier(alpm_list_t *pkgs, const char *depstring);
pmpkg_t *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstring);
const char *alpm_miss_get_target(const pmdepmissing_t *miss);
pmdepend_t *alpm_miss_get_dep(pmdepmissing_t *miss);

22
lib/libalpm/deps.c
View File

@ -494,6 +494,28 @@ void _alpm_recursedeps(pmdb_t *db, alpm_list_t *targs, int include_explicit)
}
}
/** Find a package satisfying a specified dependency.
* First look for a literal, going through each db one by one. Then look for
* providers. The first satisfier found is returned.
* The dependency can include versions with depmod operators.
* @param dbs an alpm_list_t* of pmdb_t where the satisfier will be searched
* @param depstring package or provision name, versioned or not
* @return a pmpkg_t* satisfying depstring
*/
pmpkg_t SYMEXPORT *alpm_find_dbs_satisfier(alpm_list_t *dbs, const char *depstring)
{
pmdepend_t *dep;
pmpkg_t *pkg;
ASSERT(dbs, return(NULL));
dep = _alpm_splitdep(depstring);
ASSERT(dep, return(NULL));
pkg = _alpm_resolvedep(dep, dbs, NULL, 1);
_alpm_dep_free(dep);
return(pkg);
}
/**
* helper function for resolvedeps: search for dep satisfier in dbs
*