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authorBryan Ischo <bji-keyword-pacman.3644cb@www.ischo.com>2009-03-09 09:56:13 +1300
committerDan McGee <dan@archlinux.org>2009-04-11 14:39:24 -0500
commitdb3e166503386b4f9e456017fd56d8bce84528fe (patch)
tree6be74c28ff430128c8a1a7a3064e32d3fe49d5ec /lib/libalpm
parentd70465decc617412db0670c8169ec22421c8e3d1 (diff)
Look in target-list first to resolve dependencies
This fixes a bug introduced by my previous changes which changes the behavior of IgnorePkg/IgnoreGroup to allow the user to remove unresolvable packages from the transaction. The bug is that the target-list was no longer being consulted first to resolve dependencies, which means that if two packages in the sync database satisfied a dependency, and the user explicitly requested one of those two packages in the sync, the other package was still being pulled in. A new test was added, sync993.py, to verify the desired behavior. Signed-off-by: Bryan Ischo <bji-keyword-pacman.3644cb@www.ischo.com> Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm')
-rw-r--r--lib/libalpm/deps.c18
-rw-r--r--lib/libalpm/deps.h3
-rw-r--r--lib/libalpm/sync.c7
3 files changed, 18 insertions, 10 deletions
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 36f4d355..ca2126dc 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -594,8 +594,8 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs,
* unmodified by this function
*/
int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *pkg,
- alpm_list_t **packages, alpm_list_t *remove,
- alpm_list_t **data)
+ alpm_list_t *preferred, alpm_list_t **packages,
+ alpm_list_t *remove, alpm_list_t **data)
{
alpm_list_t *i, *j;
alpm_list_t *targ;
@@ -632,17 +632,21 @@ int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *pkg,
if(_alpm_find_dep_satisfier(*packages, missdep)) {
continue;
}
- /* find a satisfier package in the given repositories */
- pmpkg_t *spkg = _alpm_resolvedep(missdep, dbs_sync, *packages, 0);
+ /* check if one of the packages in the [preferred] list already satisfies this dependency */
+ pmpkg_t *spkg = _alpm_find_dep_satisfier(preferred, missdep);
+ if(!spkg) {
+ /* find a satisfier package in the given repositories */
+ spkg = _alpm_resolvedep(missdep, dbs_sync, *packages, 0);
+ }
if(!spkg) {
pm_errno = PM_ERR_UNSATISFIED_DEPS;
char *missdepstring = alpm_dep_compute_string(missdep);
_alpm_log(PM_LOG_WARNING, _("cannot resolve \"%s\", a dependency of \"%s\"\n"),
- missdepstring, tpkg->name);
+ missdepstring, tpkg->name);
free(missdepstring);
if(data) {
pmdepmissing_t *missd = _alpm_depmiss_new(miss->target,
- miss->depend, miss->causingpkg);
+ miss->depend, miss->causingpkg);
if(missd) {
*data = alpm_list_add(*data, missd);
}
@@ -654,7 +658,7 @@ int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *pkg,
return(-1);
} else {
_alpm_log(PM_LOG_DEBUG, "pulling dependency %s (needed by %s)\n",
- alpm_pkg_get_name(spkg), alpm_pkg_get_name(tpkg));
+ alpm_pkg_get_name(spkg), alpm_pkg_get_name(tpkg));
*packages = alpm_list_add(*packages, spkg);
}
}
diff --git a/lib/libalpm/deps.h b/lib/libalpm/deps.h
index eb1400bd..94847d8d 100644
--- a/lib/libalpm/deps.h
+++ b/lib/libalpm/deps.h
@@ -49,7 +49,8 @@ alpm_list_t *_alpm_sortbydeps(alpm_list_t *targets, int reverse);
void _alpm_recursedeps(pmdb_t *db, alpm_list_t *targs, int include_explicit);
pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs, alpm_list_t *excluding, int prompt);
int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *pkg,
- alpm_list_t **packages, alpm_list_t *remove, alpm_list_t **data);
+ alpm_list_t *preferred, alpm_list_t **packages, alpm_list_t *remove,
+ alpm_list_t **data);
int _alpm_dep_edge(pmpkg_t *pkg1, pmpkg_t *pkg2);
pmdepend_t *_alpm_splitdep(const char *depstring);
pmpkg_t *_alpm_find_dep_satisfier(alpm_list_t *pkgs, pmdepend_t *dep);
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index e6923abe..1dbd93d5 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -348,6 +348,7 @@ static int compute_download_size(pmpkg_t *newpkg)
int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync, alpm_list_t **data)
{
alpm_list_t *deps = NULL;
+ alpm_list_t *preferred = NULL;
alpm_list_t *unresolvable = NULL;
alpm_list_t *remove = NULL; /* allow checkdeps usage with trans->packages */
alpm_list_t *i, *j;
@@ -370,19 +371,21 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
EVENT(trans, PM_TRANS_EVT_RESOLVEDEPS_START, NULL, NULL);
_alpm_log(PM_LOG_DEBUG, "resolving target's dependencies\n");
- /* build remove list for resolvedeps */
+ /* build remove list and preferred list for resolvedeps */
for(i = trans->packages; i; i = i->next) {
pmpkg_t *spkg = i->data;
for(j = spkg->removes; j; j = j->next) {
remove = alpm_list_add(remove, j->data);
}
+ preferred = alpm_list_add(preferred, spkg);
}
/* Resolve packages in the transaction one at a time, in addtion
building up a list of packages which could not be resolved. */
for(i = trans->packages; i; i = i->next) {
pmpkg_t *pkg = i->data;
- if(_alpm_resolvedeps(db_local, dbs_sync, pkg, &resolved, remove, data) == -1) {
+ if(_alpm_resolvedeps(db_local, dbs_sync, pkg, preferred,
+ &resolved, remove, data) == -1) {
unresolvable = alpm_list_add(unresolvable, pkg);
}
/* Else, [resolved] now additionally contains [pkg] and all of its