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solver: don't consider package that we can't have 

Packages that need (re-)installation but which are not available,
are excluded now properly.
cute-signatures
Timo Teräs 2011-07-27 22:10:44 +03:00
parent ad45a6de17
commit 1a04425fad
3 changed files with 27 additions and 2 deletions
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28
src/solver.c
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@ -35,9 +35,11 @@ struct apk_package_state {
unsigned short conflicts;
};
#define APK_NAMESTF_AVAILABILITY_CHECKED 1
struct apk_name_state {
struct list_head unsolved_list;
struct apk_package *chosen;
unsigned short flags;
unsigned short requirers;
};
@ -61,8 +63,6 @@ static int push_decision(struct apk_solver_state *ss, struct apk_package *pkg,
static inline int pkg_available(struct apk_database *db, struct apk_package *pkg)
{
if (pkg->ipkg != NULL)
return TRUE;
if (pkg->installed_size == 0)
return TRUE;
if (pkg->filename != NULL)
@ -72,6 +72,29 @@ static inline int pkg_available(struct apk_database *db, struct apk_package *pkg
return FALSE;
}
static void prepare_name(struct apk_solver_state *ss, struct apk_name *name,
struct apk_name_state *ns)
{
int i;
if (ns->flags & APK_NAMESTF_AVAILABILITY_CHECKED)
return;
for (i = 0; i < name->pkgs->num; i++) {
struct apk_package *pkg = name->pkgs->item[i];
struct apk_package_state *ps = &ss->pkg_state[pkg->topology_sort];
/* if package is needed for (re-)install */
if ((name->flags & APK_NAME_REINSTALL) || (pkg->ipkg == NULL)) {
/* and it's not available, we can't use it */
if (!pkg_available(ss->db, pkg))
ps->conflicts++;
}
}
ns->flags |= APK_NAMESTF_AVAILABILITY_CHECKED;
}
static int foreach_dependency(struct apk_solver_state *ss, struct apk_dependency_array *deps,
int (*func)(struct apk_solver_state *ss, struct apk_dependency *dep))
{
@ -276,6 +299,7 @@ static int apply_constraint(struct apk_solver_state *ss, struct apk_dependency *
struct apk_package *pkg_best = NULL;
int i, options = 0;
prepare_name(ss, name, ns);
for (i = 0; i < name->pkgs->num; i++) {
struct apk_package *pkg0 = name->pkgs->item[i];
struct apk_package_state *ps0 = &ss->pkg_state[pkg0->topology_sort];

0
test/basic7.expect Normal file
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1
test/basic7.test Normal file
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@ -0,0 +1 @@
--no-network --raw-repository basic.repo --installed basic.installed -u a