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pacman
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In the database-against-targets conflict checks, scan db packages' provides 

fields and look for packages that want to exclusively provide a provisio that
the target package also provides.
This commit is contained in:
Judd Vinet 2006-01-08 21:58:27 +00:00
parent caf64da579
commit 38180d5231
1 changed files with 52 additions and 3 deletions
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55
lib/libalpm/deps.c
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@ -226,10 +226,15 @@ PMList *checkdeps(pmdb_t *db, unsigned char op, PMList *packages)
/* CONFLICTS */
for(j = tp->conflicts; j; j = j->next) {
/* check targets against database */
if(!strcmp(tp->name, j->data)) {
/* a package cannot conflict with itself -- that's just not nice */
continue;
}
/* CHECK 1: check targets against database */
for(k = db_get_pkgcache(db); k; k = k->next) {
pmpkg_t *dp = (pmpkg_t *)k->data;
if(!strcmp(j->data, dp->name)) {
/* confict */
MALLOC(miss, sizeof(pmdepmissing_t));
miss->type = PM_DEP_TYPE_CONFLICT;
miss->depend.mod = PM_DEP_MOD_ANY;
@ -241,9 +246,28 @@ PMList *checkdeps(pmdb_t *db, unsigned char op, PMList *packages)
} else {
FREE(miss);
}
} else {
/* see if dp provides something in tp's conflict list */
PMList *m;
for(m = dp->provides; m; m = m->next) {
if(!strcmp(m->data, j->data)) {
/* confict */
MALLOC(miss, sizeof(pmdepmissing_t));
miss->type = PM_DEP_TYPE_CONFLICT;
miss->depend.mod = PM_DEP_MOD_ANY;
miss->depend.version[0] = '\0';
STRNCPY(miss->target, tp->name, PKG_NAME_LEN);
STRNCPY(miss->depend.name, dp->name, PKG_NAME_LEN);
if(!pm_list_is_in(miss, baddeps)) {
baddeps = pm_list_add(baddeps, miss);
} else {
FREE(miss);
}
}
}
}
}
/* check targets against targets */
/* CHECK 2: check targets against targets */
for(k = packages; k; k = k->next) {
pmpkg_t *a = (pmpkg_t *)k->data;
if(!strcmp(a->name, (char *)j->data)) {
@ -261,8 +285,9 @@ PMList *checkdeps(pmdb_t *db, unsigned char op, PMList *packages)
}
}
}
/* check database against targets */
/* CHECK 3: check database against targets */
for(k = db_get_pkgcache(db); k; k = k->next) {
int conflict = 0;
info = k->data;
for(j = info->conflicts; j; j = j->next) {
if(!strcmp((char *)j->data, tp->name)) {
@ -277,8 +302,32 @@ PMList *checkdeps(pmdb_t *db, unsigned char op, PMList *packages)
} else {
FREE(miss);
}
} else {
/* see if info and tp both provide something that info wants to
* exclusively provide (ie, conflicts&provides package X) */
PMList *m;
for(m = info->conflicts; m; m = m->next) {
PMList *n;
for(n = tp->provides; n; n = n->next) {
if(!strcmp(m->data, n->data)) {
MALLOC(miss, sizeof(pmdepmissing_t));
miss->type = PM_DEP_TYPE_CONFLICT;
miss->depend.mod = PM_DEP_MOD_ANY;
miss->depend.version[0] = '\0';
STRNCPY(miss->target, tp->name, PKG_NAME_LEN);
STRNCPY(miss->depend.name, info->name, PKG_NAME_LEN);
if(!pm_list_is_in(miss, baddeps)) {
baddeps = pm_list_add(baddeps, miss);
} else {
FREE(miss);
}
}
}
}
}
}
if(conflict) {
}
}
/* PROVIDES -- check to see if another package already provides what