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authorAaron Griffin <aaron@archlinux.org>2007-03-01 07:03:05 +0000
committerAaron Griffin <aaron@archlinux.org>2007-03-01 07:03:05 +0000
commit3ebd125e1ad9abbf5fbcb4457adb8288750b379e (patch)
tree04e93b6896fd61d86bca280af0ac8bb5448c08a2 /lib/libalpm/deps.c
parent6075b677fcdeccf2b39ebbd4a089b4ebe016a62e (diff)
* Switched some functions to alpm_pkg_get_* usage as I came across them
* Added some provision switching hackery. This could probably use some refactoring,.. it solves the following case: pkg1 and pkg2 provide 'foo' and are both installed pkg3 depends on 'foo' and so lists 'pkg1' in the REQUIREDBY db section pkg1 is upgraded and no longer provides 'foo' ** This code ensures that the REQUIREDBY of pkg3 is updated to require pkg2 now instead of pkg1
Diffstat (limited to 'lib/libalpm/deps.c')
-rw-r--r--lib/libalpm/deps.c71
1 files changed, 53 insertions, 18 deletions
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index d3195d39..cab37636 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -198,7 +198,7 @@ alpm_list_t *_alpm_checkdeps(pmtrans_t *trans, pmdb_t *db, pmtranstype_t op,
alpm_list_t *packages)
{
pmdepend_t depend;
- alpm_list_t *i, *j, *k;
+ alpm_list_t *i, *j, *k, *l;
int found = 0;
alpm_list_t *baddeps = NULL;
pmdepmissing_t *miss = NULL;
@@ -214,19 +214,18 @@ alpm_list_t *_alpm_checkdeps(pmtrans_t *trans, pmdb_t *db, pmtranstype_t op,
* listed in the requiredby field.
*/
for(i = packages; i; i = i->next) {
- pmpkg_t *tp = i->data;
+ pmpkg_t *newpkg = i->data;
pmpkg_t *oldpkg;
- if(tp == NULL) {
+ if(newpkg == NULL) {
_alpm_log(PM_LOG_DEBUG, _("null package found in package list"));
continue;
}
- if((oldpkg = _alpm_db_get_pkgfromcache(db, tp->name)) == NULL) {
- _alpm_log(PM_LOG_DEBUG, _("cannot find package installed '%s'"), tp->name);
+ if((oldpkg = _alpm_db_get_pkgfromcache(db, newpkg->name)) == NULL) {
+ _alpm_log(PM_LOG_DEBUG, _("cannot find package installed '%s'"), newpkg->name);
continue;
}
- _alpm_db_read(db, oldpkg, INFRQ_DEPENDS);
- for(j = oldpkg->requiredby; j; j = j->next) {
+ for(j = alpm_pkg_get_requiredby(oldpkg); j; j = j->next) {
pmpkg_t *p;
found = 0;
if((p = _alpm_db_get_pkgfromcache(db, j->data)) == NULL) {
@@ -237,19 +236,55 @@ alpm_list_t *_alpm_checkdeps(pmtrans_t *trans, pmdb_t *db, pmtranstype_t op,
/* this package also in the upgrade list, so don't worry about it */
continue;
}
- _alpm_db_read(db, p, INFRQ_DEPENDS);
- for(k = p->depends; k; k = k->next) {
+ for(k = alpm_pkg_get_depends(p); k; k = k->next) {
/* don't break any existing dependencies (possible provides) */
_alpm_splitdep(k->data, &depend);
- if(_alpm_depcmp(oldpkg, &depend) && !_alpm_depcmp(tp, &depend)) {
- _alpm_log(PM_LOG_DEBUG, _("checkdeps: updated '%s' won't satisfy a dependency of '%s'"),
- oldpkg->name, p->name);
- miss = _alpm_depmiss_new(p->name, PM_DEP_TYPE_REQUIRED, depend.mod,
- depend.name, depend.version);
- if(!_alpm_depmiss_isin(miss, baddeps)) {
- baddeps = alpm_list_add(baddeps, miss);
- } else {
- FREE(miss);
+
+ /* if oldpkg satisfied this dep, and newpkg doesn't */
+ if(_alpm_depcmp(oldpkg, &depend) && !_alpm_depcmp(newpkg, &depend)) {
+ /* we've found a dep that was removed... see if any other package
+ * still contains/provides the dep */
+ int satisfied = 0;
+ for(l = packages; l; l = l->next) {
+ pmpkg_t *pkg = l->data;
+
+ if(_alpm_depcmp(pkg, &depend)) {
+ _alpm_log(PM_LOG_DEBUG, _("checkdeps: dependency '%s' has moved from '%s' to '%s'"),
+ depend.name, oldpkg->name, pkg->name);
+ satisfied = 1;
+ break;
+ }
+ }
+
+ if(!satisfied) {
+ /* worst case... check installed packages to see if anything else
+ * satisfies this... */
+ for(l = _alpm_db_get_pkgcache(db, INFRQ_DEPENDS); l; l = l->next) {
+ pmpkg_t *pkg = l->data;
+
+ if(strcmp(pkg->name, oldpkg->name) == 0) {
+ /* well, we know this one fails... skip it */
+ continue;
+ }
+ if(_alpm_depcmp(pkg, &depend)) {
+ _alpm_log(PM_LOG_DEBUG, _("checkdeps: dependency '%s' satisfied by installed package '%s'"),
+ depend.name, pkg->name);
+ satisfied = 1;
+ break;
+ }
+ }
+ }
+
+ if(!satisfied) {
+ _alpm_log(PM_LOG_DEBUG, _("checkdeps: updated '%s' won't satisfy a dependency of '%s'"),
+ oldpkg->name, p->name);
+ miss = _alpm_depmiss_new(p->name, PM_DEP_TYPE_REQUIRED, depend.mod,
+ depend.name, depend.version);
+ if(!_alpm_depmiss_isin(miss, baddeps)) {
+ baddeps = alpm_list_add(baddeps, miss);
+ } else {
+ FREE(miss);
+ }
}
}
}