rpmte
rpmalSatisfiesDepend(const rpmal al, const rpmds ds)
{
rpmte *providers = rpmalAllSatisfiesDepend(al, ds);
rpmte best = NULL;
if (providers) {
if (al->tscolor) {
/*
* For colored dependencies, try to find a matching provider.
* Otherwise prefer provider of ts preferred color.
*/
rpm_color_t dscolor = rpmdsColor(ds);
for (rpmte *p = providers; *p; p++) {
rpm_color_t tecolor = rpmteColor(*p);
if (dscolor) {
if (dscolor == tecolor) best = *p;
} else if (al->prefcolor) {
if (al->prefcolor == tecolor) best = *p;
}
if (best) break;
}
}
/* if not decided by now, just pick first match */
if (!best) best = providers[0];
free(providers);
}
return best;
}
/*
* Filtered rpmal lookup: on colored transactions there can be more
* than one identical NEVR but different arch, this must be allowed.
* Only a single element needs to be considred as there can only ever
* be one previous element to be replaced.
*/
static rpmte checkAdded(rpmal addedPackages, rpm_color_t tscolor,
rpmte te, rpmds ds)
{
rpmte p = NULL;
rpmte *matches = NULL;
matches = rpmalAllSatisfiesDepend(addedPackages, ds);
if (matches) {
const char * arch = rpmteA(te);
const char * os = rpmteO(te);
for (rpmte *m = matches; m && *m; m++) {
if (tscolor) {
const char * parch = rpmteA(*m);
const char * pos = rpmteO(*m);
if (arch == NULL || parch == NULL || os == NULL || pos == NULL)
continue;
if (!rstreq(arch, parch) || !rstreq(os, pos))
continue;
}
p = *m;
break;
}
free(matches);
}
return p;
}
rpmte
rpmalSatisfiesDepend(const rpmal al, const rpmte te, const rpmds ds)
{
rpmte *providers = rpmalAllSatisfiesDepend(al, ds);
rpmte best = NULL;
int bestscore = 0;
if (providers) {
rpm_color_t dscolor = rpmdsColor(ds);
for (rpmte *p = providers; *p; p++) {
int score = 0;
/*
* For colored dependencies, prefer a matching colored provider.
* Otherwise prefer provider of ts preferred color.
*/
if (al->tscolor) {
rpm_color_t tecolor = rpmteColor(*p);
if (dscolor) {
if (dscolor == tecolor) score += 2;
} else if (al->prefcolor) {
if (al->prefcolor == tecolor) score += 2;
}
}
/* Being self-provided is a bonus */
if (*p == te)
score += 1;
if (score > bestscore) {
bestscore = score;
best = *p;
}
}
/* if not decided by now, just pick first match */
if (!best) best = providers[0];
free(providers);
}
return best;
}
/**
* Check dep for an unsatisfied dependency.
* @param ts transaction set
* @param dcache dependency cache
* @param dep dependency
* @return 0 if satisfied, 1 if not satisfied
*/
static int unsatisfiedDepend(rpmts ts, depCache dcache, rpmds dep)
{
tsMembers tsmem = rpmtsMembers(ts);
int rc;
int retrying = 0;
int adding = (rpmdsInstance(dep) == 0);
rpmsenseFlags dsflags = rpmdsFlags(dep);
retry:
rc = 0; /* assume dependency is satisfied */
/*
* New features in rpm packaging implicitly add versioned dependencies
* on rpmlib provides. The dependencies look like "rpmlib(YaddaYadda)".
* Check those dependencies now.
*/
if (dsflags & RPMSENSE_RPMLIB) {
if (tsmem->rpmlib == NULL)
rpmdsRpmlibPool(rpmtsPool(ts), &(tsmem->rpmlib), NULL);
if (tsmem->rpmlib != NULL && rpmdsSearch(tsmem->rpmlib, dep) >= 0) {
rpmdsNotify(dep, "(rpmlib provides)", rc);
goto exit;
}
goto unsatisfied;
}
/* Dont look at pre-requisites of already installed packages */
if (!adding && isInstallPreReq(dsflags) && !isErasePreReq(dsflags))
goto exit;
/* Handle rich dependencies */
if (rpmdsIsRich(dep)) {
rpmds ds1, ds2;
rpmrichOp op;
char *emsg = 0;
if (rpmdsParseRichDep(dep, &ds1, &ds2, &op, &emsg) != RPMRC_OK) {
rc = rpmdsTagN(dep) == RPMTAG_CONFLICTNAME ? 0 : 1;
if (rpmdsInstance(dep) != 0)
rc = !rc; /* ignore errors for installed packages */
rpmdsNotify(dep, emsg ? emsg : "(parse error)", rc);
_free(emsg);
goto exit;
}
if (op == RPMRICHOP_IF) {
if (rpmdsIsRich(ds2)) {
/* check if this is a IF...ELSE combination */
rpmds ds21 = NULL, ds22 = NULL;
rpmrichOp op2;
if (rpmdsParseRichDep(ds2, &ds21, &ds22, &op2, NULL) == RPMRC_OK && op2 == RPMRICHOP_ELSE) {
rc = unsatisfiedDepend(ts, dcache, ds21);
if (rc) {
rpmdsFree(ds1);
ds1 = ds22;
ds22 = NULL;
}
rc = 1;
}
rpmdsFree(ds21);
rpmdsFree(ds22);
}
if (!rc)
rc = !unsatisfiedDepend(ts, dcache, ds2);
}
if (op != RPMRICHOP_IF || rc)
rc = unsatisfiedDepend(ts, dcache, ds1);
if ((rc && op == RPMRICHOP_OR) || (!rc && op == RPMRICHOP_AND))
rc = unsatisfiedDepend(ts, dcache, ds2);
ds1 = rpmdsFree(ds1);
ds2 = rpmdsFree(ds2);
rpmdsNotify(dep, "(rich)", rc);
goto exit;
}
/* Pretrans dependencies can't be satisfied by added packages. */
if (!(dsflags & RPMSENSE_PRETRANS)) {
rpmte *matches = rpmalAllSatisfiesDepend(tsmem->addedPackages, dep);
int match = matches && *matches;
_free(matches);
if (match)
goto exit;
}
/* See if the rpmdb provides it */
if (rpmdbProvides(ts, dcache, dep) == 0)
goto exit;
/* Search for an unsatisfied dependency. */
if (adding && !retrying && !(dsflags & RPMSENSE_PRETRANS)) {
int xx = rpmtsSolve(ts, dep);
if (xx == 0)
goto exit;
if (xx == -1) {
retrying = 1;
goto retry;
}
}
unsatisfied:
if (dsflags & RPMSENSE_MISSINGOK) {
/* note the result, but missingok deps are never unsatisfied */
rpmdsNotify(dep, "(missingok)", 1);
} else {
/* dependency is unsatisfied */
rc = 1;
rpmdsNotify(dep, NULL, rc);
}
exit:
return rc;
}
/**
* Check dep for an unsatisfied dependency.
* @param ts transaction set
* @param dep dependency
* @return 0 if satisfied, 1 if not satisfied
*/
static int unsatisfiedDepend(rpmts ts, depCache dcache, rpmds dep)
{
tsMembers tsmem = rpmtsMembers(ts);
int rc;
int retrying = 0;
int adding = (rpmdsInstance(dep) == 0);
rpmsenseFlags dsflags = rpmdsFlags(dep);
retry:
rc = 0; /* assume dependency is satisfied */
/*
* New features in rpm packaging implicitly add versioned dependencies
* on rpmlib provides. The dependencies look like "rpmlib(YaddaYadda)".
* Check those dependencies now.
*/
if (dsflags & RPMSENSE_RPMLIB) {
if (tsmem->rpmlib == NULL)
rpmdsRpmlibPool(rpmtsPool(ts), &(tsmem->rpmlib), NULL);
if (tsmem->rpmlib != NULL && rpmdsSearch(tsmem->rpmlib, dep) >= 0) {
rpmdsNotify(dep, "(rpmlib provides)", rc);
goto exit;
}
goto unsatisfied;
}
/* Dont look at pre-requisites of already installed packages */
if (!adding && isInstallPreReq(dsflags) && !isErasePreReq(dsflags))
goto exit;
/* Pretrans dependencies can't be satisfied by added packages. */
if (!(dsflags & RPMSENSE_PRETRANS)) {
rpmte *matches = rpmalAllSatisfiesDepend(tsmem->addedPackages, dep);
int match = 0;
/*
* Handle definitive matches within the added package set.
* Self-obsoletes and -conflicts fall through here as we need to
* check for possible other matches in the rpmdb.
*/
for (rpmte *m = matches; m && *m; m++) {
rpmTagVal dtag = rpmdsTagN(dep);
/* Requires match, look no further */
if (dtag == RPMTAG_REQUIRENAME) {
match = 1;
break;
}
/* Conflicts/obsoletes match on another package, look no further */
if (rpmteDS(*m, dtag) != dep) {
match = 1;
break;
}
}
free(matches);
if (match)
goto exit;
}
/* See if the rpmdb provides it */
if (rpmdbProvides(ts, dcache, dep) == 0)
goto exit;
/* Search for an unsatisfied dependency. */
if (adding && !retrying && !(dsflags & RPMSENSE_PRETRANS)) {
int xx = rpmtsSolve(ts, dep);
if (xx == 0)
goto exit;
if (xx == -1) {
retrying = 1;
goto retry;
}
}
unsatisfied:
if (dsflags & RPMSENSE_MISSINGOK) {
/* note the result, but missingok deps are never unsatisfied */
rpmdsNotify(dep, "(missingok)", 1);
} else {
/* dependency is unsatisfied */
rc = 1;
rpmdsNotify(dep, NULL, rc);
}
exit:
return rc;
}
