#include "evr.h"
#include "solverdebug.h"
-
/**********************************************************************************/
/* a problem is an item on the solver's problem list. It can either be >0, in that
* consisting of multiple job rules.
*/
-void
+static void
solver_disableproblem(Solver *solv, Id v)
{
- Rule *r;
int i;
Id *jp;
return;
}
solver_disablerule(solv, solv->rules + v);
-#if 0
- /* XXX: doesn't work */
- if (v >= solv->updaterules && v < solv->updaterules_end)
- {
- /* enable feature rule if we disabled the update rule */
- r = solv->rules + (v - solv->updaterules + solv->featurerules);
- if (r->p)
- solver_enablerule(solv, r);
- }
-#endif
return;
}
v = -(v + 1);
jp = solv->ruletojob.elements;
- for (i = solv->jobrules, r = solv->rules + i; i < solv->jobrules_end; i++, r++, jp++)
+ if (solv->bestrules_pkg)
+ {
+ int ni = solv->bestrules_up - solv->bestrules;
+ for (i = 0; i < ni; i++)
+ {
+ int j = solv->bestrules_pkg[i];
+ if (j < 0 && jp[-j - solv->jobrules] == v)
+ solver_disablerule(solv, solv->rules + solv->bestrules + i);
+ }
+ }
+ for (i = solv->jobrules; i < solv->jobrules_end; i++, jp++)
if (*jp == v)
- solver_disablerule(solv, r);
+ solver_disablerule(solv, solv->rules + i);
}
/*-------------------------------------------------------------------
* enableproblem
*/
-void
+static void
solver_enableproblem(Solver *solv, Id v)
{
Rule *r;
}
v = -(v + 1);
jp = solv->ruletojob.elements;
- for (i = solv->jobrules, r = solv->rules + i; i < solv->jobrules_end; i++, r++, jp++)
+ if (solv->bestrules_pkg)
+ {
+ int ni = solv->bestrules_up - solv->bestrules;
+ for (i = 0; i < ni; i++)
+ {
+ int j = solv->bestrules_pkg[i];
+ if (j < 0 && jp[-j - solv->jobrules] == v)
+ solver_enablerule(solv, solv->rules + solv->bestrules + i);
+ }
+ }
+ for (i = solv->jobrules; i < solv->jobrules_end; i++, jp++)
if (*jp == v)
- solver_enablerule(solv, r);
+ solver_enablerule(solv, solv->rules + i);
+}
+
+
+/*-------------------------------------------------------------------
+ * turn a problem rule into a problem id by normalizing it
+ */
+static Id
+solver_ruletoproblem(Solver *solv, Id rid)
+{
+ if (rid >= solv->jobrules && rid < solv->jobrules_end)
+ rid = -(solv->ruletojob.elements[rid - solv->jobrules] + 1);
+ else if (rid >= solv->bestrules && rid < solv->bestrules_up && solv->bestrules_pkg[rid - solv->bestrules] < 0)
+ rid = -(solv->ruletojob.elements[-solv->bestrules_pkg[rid - solv->bestrules] - solv->jobrules] + 1);
+ else if (rid > solv->infarchrules && rid < solv->infarchrules_end)
+ {
+ Pool *pool = solv->pool;
+ Id name = pool->solvables[-solv->rules[rid].p].name;
+ while (rid > solv->infarchrules && pool->solvables[-solv->rules[rid - 1].p].name == name)
+ rid--;
+ }
+ else if (rid > solv->duprules && rid < solv->duprules_end)
+ {
+ Pool *pool = solv->pool;
+ Id name = pool->solvables[-solv->rules[rid].p].name;
+ while (rid > solv->duprules && pool->solvables[-solv->rules[rid - 1].p].name == name)
+ rid--;
+ }
+ return rid;
+}
+
+/*-------------------------------------------------------------------
+ * when the solver runs into a problem, it needs to disable all
+ * involved non-pkg rules and record the rules for solution
+ * generation.
+ */
+void
+solver_recordproblem(Solver *solv, Id rid)
+{
+ Id v = solver_ruletoproblem(solv, rid);
+ /* return if problem already countains our rule */
+ if (solv->problems.count)
+ {
+ int i;
+ for (i = solv->problems.count - 1; i >= 0; i--)
+ if (solv->problems.elements[i] == 0) /* end of last problem reached? */
+ break;
+ else if (solv->problems.elements[i] == v)
+ return;
+ }
+ queue_push(&solv->problems, v);
+}
+
+/*-------------------------------------------------------------------
+ * this is called when a problem is solved by disabling a rule.
+ * It calls disableproblem and then re-enables policy rules
+ */
+void
+solver_fixproblem(Solver *solv, Id rid)
+{
+ Id v = solver_ruletoproblem(solv, rid);
+ solver_disableproblem(solv, v);
+ if (v < 0)
+ solver_reenablepolicyrules(solv, -v);
+}
+
+/*-------------------------------------------------------------------
+ * disable a set of problems
+ */
+void
+solver_disableproblemset(Solver *solv, int start)
+{
+ int i;
+ for (i = start + 1; i < solv->problems.count - 1; i++)
+ solver_disableproblem(solv, solv->problems.elements[i]);
+}
+
+/*-------------------------------------------------------------------
+ * try to fix a problem by auto-uninstalling packages
+ */
+Id
+solver_autouninstall(Solver *solv, int start)
+{
+ Pool *pool = solv->pool;
+ int i;
+ int lastfeature = 0, lastupdate = 0;
+ Id v;
+ Id extraflags = -1;
+ Map *m = 0;
+
+ if (!solv->allowuninstall && !solv->allowuninstall_all)
+ {
+ if (!solv->allowuninstallmap.size)
+ return 0; /* why did we get called? */
+ m = &solv->allowuninstallmap;
+ }
+ for (i = start + 1; i < solv->problems.count - 1; i++)
+ {
+ v = solv->problems.elements[i];
+ if (v < 0)
+ extraflags &= solv->job.elements[-v - 1];
+ if (v >= solv->updaterules && v < solv->updaterules_end)
+ {
+ Rule *r;
+ Id p = solv->installed->start + (v - solv->updaterules);
+ if (m && !MAPTST(m, v - solv->updaterules))
+ continue;
+ if (pool->considered && !MAPTST(pool->considered, p))
+ continue; /* do not uninstalled disabled packages */
+ if (solv->bestrules_pkg && solv->bestrules_end > solv->bestrules)
+ {
+ int j;
+ for (j = start + 1; j < solv->problems.count - 1; j++)
+ {
+ Id vv = solv->problems.elements[j];
+ if (vv >= solv->bestrules && vv < solv->bestrules_end && solv->bestrules_pkg[vv - solv->bestrules] == p)
+ break;
+ }
+ if (j < solv->problems.count - 1)
+ continue; /* best rule involved, do not uninstall */
+ }
+ /* check if identical to feature rule, we don't like that (except for orphans) */
+ r = solv->rules + solv->featurerules + (v - solv->updaterules);
+ if (!r->p)
+ {
+ /* update rule == feature rule */
+ if (v > lastfeature)
+ lastfeature = v;
+ /* prefer orphaned packages in dup mode */
+ if (solv->keep_orphans)
+ {
+ r = solv->rules + v;
+ if (!r->d && !r->w2 && r->p == p)
+ {
+ lastfeature = v;
+ lastupdate = 0;
+ break;
+ }
+ }
+ continue;
+ }
+ if (v > lastupdate)
+ lastupdate = v;
+ }
+ }
+ if (!lastupdate && !lastfeature)
+ return 0;
+ v = lastupdate ? lastupdate : lastfeature;
+ POOL_DEBUG(SOLV_DEBUG_UNSOLVABLE, "allowuninstall disabling ");
+ solver_printruleclass(solv, SOLV_DEBUG_UNSOLVABLE, solv->rules + v);
+ /* should really be solver_fixproblem, but we know v is an update/feature rule */
+ solver_disableproblem(solv, v);
+ if (extraflags != -1 && (extraflags & SOLVER_CLEANDEPS) != 0 && solv->cleandepsmap.size)
+ {
+ /* add the package to the updatepkgs list, this will automatically turn
+ * on cleandeps mode */
+ Id p = solv->rules[v].p;
+ if (!solv->cleandeps_updatepkgs)
+ {
+ solv->cleandeps_updatepkgs = solv_calloc(1, sizeof(Queue));
+ queue_init(solv->cleandeps_updatepkgs);
+ }
+ if (p > 0)
+ {
+ int oldupdatepkgscnt = solv->cleandeps_updatepkgs->count;
+ queue_pushunique(solv->cleandeps_updatepkgs, p);
+ if (solv->cleandeps_updatepkgs->count != oldupdatepkgscnt)
+ solver_disablepolicyrules(solv);
+ }
+ }
+ return v;
}
/*-------------------------------------------------------------------
* enable weak rules
- *
+ *
* Reenable all disabled weak rules (marked in weakrulemap)
- *
+ *
*/
static void
int i;
Rule *r;
+ if (!solv->weakrulemap.size)
+ return;
for (i = 1, r = solv->rules + i; i < solv->learntrules; i++, r++)
{
if (r->d >= 0) /* already enabled? */
continue;
solver_enablerule(solv, r);
}
+ /* make sure broken orphan rules stay disabled */
+ if (solv->brokenorphanrules)
+ for (i = 0; i < solv->brokenorphanrules->count; i++)
+ solver_disablerule(solv, solv->rules + solv->brokenorphanrules->elements[i]);
}
/*-------------------------------------------------------------------
- *
+ *
* refine_suggestion
- *
+ *
* at this point, all rules that led to conflicts are disabled.
* we re-enable all rules of a problem set but rule "sug", then
* continue to disable more rules until there as again a solution.
queue_empty(refined);
if (!essentialok && sug < 0 && (solv->job.elements[-sug - 1] & SOLVER_ESSENTIAL) != 0)
return;
- queue_init(&disabled);
queue_push(refined, sug);
/* re-enable all problem rules with the exception of "sug"(gestion) */
for (i = 0; problem[i]; i++)
if (problem[i] != sug)
solver_enableproblem(solv, problem[i]);
-
if (sug < 0)
solver_reenablepolicyrules(solv, -sug);
- else if (sug >= solv->updaterules && sug < solv->updaterules_end)
+
+ /* here is where the feature rules come into play: if we disabled an
+ * update rule, we enable the corresponding feature rule if there is
+ * one. We do this to make the solver downgrade packages instead of
+ * deinstalling them */
+ if (sug >= solv->updaterules && sug < solv->updaterules_end)
{
/* enable feature rule */
Rule *r = solv->rules + solv->featurerules + (sug - solv->updaterules);
enableweakrules(solv);
+ /* disabled contains all of the rules we disabled in the refinement process */
+ queue_init(&disabled);
for (;;)
{
- int njob, nfeature, nupdate, pass;
+ int nother, nfeature, nupdate, pass;
queue_empty(&solv->problems);
solver_reset(solv);
-
- if (!solv->problems.count)
- solver_run_sat(solv, 0, 0);
+ /* we set disablerules to zero because we are only interested in
+ * the first problem and we don't want the solver to disable the problems */
+ solver_run_sat(solv, 0, 0);
if (!solv->problems.count)
{
break; /* great, no more problems */
}
disabledcnt = disabled.count;
- /* start with 1 to skip over proof index */
- njob = nfeature = nupdate = 0;
+ nother = nfeature = nupdate = 0;
for (pass = 0; pass < 2; pass++)
{
+ /* start with 1 to skip over proof index */
for (i = 1; i < solv->problems.count - 1; i++)
{
/* ignore solutions in refined */
v = solv->problems.elements[i];
if (v == 0)
break; /* end of problem reached */
+ if (!essentialok && v < 0 && (solv->job.elements[-v - 1] & SOLVER_ESSENTIAL) != 0)
+ continue; /* not that one! */
if (sug != v)
{
/* check if v is in the given problems list
}
if (v >= solv->featurerules && v < solv->featurerules_end)
nfeature++;
- else if (v > 0)
+ else if (v > solv->updaterules && v < solv->updaterules_end)
nupdate++;
else
- {
- if (!essentialok && (solv->job.elements[-v -1] & SOLVER_ESSENTIAL) != 0)
- continue; /* not that one! */
- njob++;
- }
+ nother++;
queue_push(&disabled, v);
}
if (disabled.count != disabledcnt)
refined->count = 0;
break;
}
- if (!njob && nupdate && nfeature)
+ if (!nother && nupdate && nfeature)
{
/* got only update rules, filter out feature rules */
POOL_DEBUG(SOLV_DEBUG_SOLUTIONS, "throwing away feature rules\n");
if (!nfeature && v != sug)
queue_push(refined, v); /* do not record feature rules */
solver_disableproblem(solv, v);
+ if (v < 0)
+ solver_reenablepolicyrules(solv, -v);
if (v >= solv->updaterules && v < solv->updaterules_end)
{
Rule *r = solv->rules + (v - solv->updaterules + solv->featurerules);
if (r->p)
solver_enablerule(solv, r); /* enable corresponding feature rule */
}
- if (v < 0)
- solver_reenablepolicyrules(solv, -v);
}
else
{
for (i = 0; i < disabled.count; i++)
solver_enableproblem(solv, disabled.elements[i]);
queue_free(&disabled);
+
/* reset policy rules */
for (i = 0; problem[i]; i++)
solver_enableproblem(solv, problem[i]);
Pool *pool = solv->pool;
if (why < 0)
{
- queue_push(solutionq, 0);
- queue_push(solutionq, -why);
+ why = -why;
+ if (why < solv->pooljobcnt)
+ {
+ queue_push(solutionq, SOLVER_SOLUTION_POOLJOB);
+ queue_push(solutionq, why);
+ }
+ else
+ {
+ queue_push(solutionq, SOLVER_SOLUTION_JOB);
+ queue_push(solutionq, why - solv->pooljobcnt);
+ }
return;
}
if (why >= solv->infarchrules && why < solv->infarchrules_end)
if (why >= solv->updaterules && why < solv->updaterules_end)
{
/* update rule, find replacement package */
- Id p, *dp, rp = 0;
+ Id p, pp, rp = 0;
Rule *rr;
- assert(why >= solv->updaterules && why < solv->updaterules_end);
/* check if this is a false positive, i.e. the update rule is fulfilled */
rr = solv->rules + why;
- FOR_RULELITERALS(p, dp, rr)
+ FOR_RULELITERALS(p, pp, rr)
if (p > 0 && solv->decisionmap[p] > 0)
- break;
- if (p)
- return; /* false alarm */
+ return; /* false alarm */
p = solv->installed->start + (why - solv->updaterules);
+ if (solv->decisionmap[p] > 0)
+ return; /* false alarm, turned out we can keep the package */
rr = solv->rules + solv->featurerules + (why - solv->updaterules);
if (!rr->p)
rr = solv->rules + why;
- if (solv->dupmap_all && solv->rules[why].p != p && solv->decisionmap[p] > 0)
- {
- /* distupgrade case, allow to keep old package */
- queue_push(solutionq, SOLVER_SOLUTION_DISTUPGRADE);
- queue_push(solutionq, p);
- return;
- }
- if (solv->decisionmap[p] > 0)
- return; /* false alarm, turned out we can keep the package */
if (rr->w2)
{
int mvrp = 0; /* multi-version replacement */
- FOR_RULELITERALS(rp, dp, rr)
+ FOR_RULELITERALS(rp, pp, rr)
{
if (rp > 0 && solv->decisionmap[rp] > 0 && pool->solvables[rp].repo != solv->installed)
{
mvrp = rp;
- if (!(solv->noobsoletes.size && MAPTST(&solv->noobsoletes, rp)))
+ if (!(solv->multiversion.size && MAPTST(&solv->multiversion, rp)))
break;
}
}
queue_push(solutionq, rp);
return;
}
+ if (why >= solv->bestrules && why < solv->bestrules_end)
+ {
+ int mvrp;
+ Id p, pp, rp = 0;
+ Rule *rr;
+ /* check false positive */
+ rr = solv->rules + why;
+ FOR_RULELITERALS(p, pp, rr)
+ if (p > 0 && solv->decisionmap[p] > 0)
+ return; /* false alarm */
+ /* check update/feature rule */
+ p = solv->bestrules_pkg[why - solv->bestrules];
+ if (p < 0)
+ {
+ /* install job */
+ queue_push(solutionq, 0);
+ queue_push(solutionq, solv->ruletojob.elements[-p - solv->jobrules] + 1);
+ return;
+ }
+ if (solv->decisionmap[p] > 0)
+ {
+ /* disable best rule by keeping the old package */
+ queue_push(solutionq, SOLVER_SOLUTION_BEST);
+ queue_push(solutionq, p);
+ return;
+ }
+ rr = solv->rules + solv->featurerules + (p - solv->installed->start);
+ if (!rr->p)
+ rr = solv->rules + solv->updaterules + (p - solv->installed->start);
+ mvrp = 0; /* multi-version replacement */
+ FOR_RULELITERALS(rp, pp, rr)
+ if (rp > 0 && solv->decisionmap[rp] > 0 && pool->solvables[rp].repo != solv->installed)
+ {
+ mvrp = rp;
+ if (!(solv->multiversion.size && MAPTST(&solv->multiversion, rp)))
+ break;
+ }
+ if (!rp && mvrp)
+ {
+ queue_push(solutionq, SOLVER_SOLUTION_BEST); /* split, see above */
+ queue_push(solutionq, mvrp);
+ queue_push(solutionq, p);
+ queue_push(solutionq, 0);
+ return;
+ }
+ if (rp)
+ {
+ queue_push(solutionq, SOLVER_SOLUTION_BEST);
+ queue_push(solutionq, rp);
+ }
+ return;
+ }
}
/*
idx = solv->solutions.count;
queue_push(&solv->solutions, -1); /* unrefined */
/* proofidx stays in position, thus we start with 1 */
- for (i = 1; i < solv->problems.count; i++)
- {
+ for (i = 1; i < solv->problems.count; i++)
+ {
Id p = solv->problems.elements[i];
- queue_push(&solv->solutions, p);
- if (p)
+ queue_push(&solv->solutions, p);
+ if (p)
continue;
/* end of problem reached */
- solv->problems.elements[j++] = idx;
+ solv->problems.elements[j++] = idx;
if (i + 1 >= solv->problems.count)
break;
/* start another problem */
idx = solv->solutions.count;
queue_push(&solv->solutions, -1); /* unrefined */
}
- solv->problems.count = j;
+ solv->problems.count = j;
return j / 2;
}
{
Pool *pool = solv->pool;
Queue redoq;
- Queue problem, solution, problems_save;
+ Queue problem, solution, problems_save, branches_save, decisionq_reason_save;
int i, j, nsol;
int essentialok;
unsigned int now;
now = solv_timems(0);
queue_init(&redoq);
- /* save decisionq, decisionq_why, decisionmap */
+ /* save decisionq, decisionq_why, decisionmap, and decisioncnt */
for (i = 0; i < solv->decisionq.count; i++)
{
Id p = solv->decisionq.elements[i];
queue_push(&redoq, solv->decisionq_why.elements[i]);
queue_push(&redoq, solv->decisionmap[p > 0 ? p : -p]);
}
+
/* save problems queue */
problems_save = solv->problems;
memset(&solv->problems, 0, sizeof(solv->problems));
+ /* save branches queue */
+ branches_save = solv->branches;
+ memset(&solv->branches, 0, sizeof(solv->branches));
+
+ /* save decisionq_reason */
+ decisionq_reason_save = solv->decisionq_reason;
+ memset(&solv->decisionq_reason, 0, sizeof(solv->decisionq_reason));
+
/* extract problem from queue */
queue_init(&problem);
for (i = solidx + 1; i < solv->solutions.count; i++)
solv->decisionmap[p > 0 ? p : -p] = redoq.elements[i + 2];
}
queue_free(&redoq);
+
+ /* restore decision reasons */
+ queue_free(&solv->decisionq_reason);
+ solv->decisionq_reason = decisionq_reason_save;
+
/* restore problems */
queue_free(&solv->problems);
solv->problems = problems_save;
+ /* restore branches */
+ queue_free(&solv->branches);
+ solv->branches = branches_save;
+
if (solv->cleandeps_mistakes)
{
if (oldmistakes)
solv->cleandeps_mistakes = solv_free(solv->cleandeps_mistakes);
}
}
-
+
POOL_DEBUG(SOLV_DEBUG_STATS, "create_solutions for problem #%d took %d ms\n", probnr, solv_timems(now));
}
* -> add (SOLVER_INSTALL|SOLVER_SOLVABLE, rp) to the job
* SOLVER_SOLUTION_DISTUPGRADE pkgid
* -> add (SOLVER_INSTALL|SOLVER_SOLVABLE, rp) to the job
+ * SOLVER_SOLUTION_BEST pkgid
+ * -> add (SOLVER_INSTALL|SOLVER_SOLVABLE, rp) to the job
* SOLVER_SOLUTION_JOB jobidx
* -> remove job (jobidx - 1, jobidx) from job queue
+ * SOLVER_SOLUTION_POOLJOB jobidx
+ * -> remove job (jobidx - 1, jobidx) from pool job queue
* pkgid (> 0) 0
* -> add (SOLVER_ERASE|SOLVER_SOLVABLE, p) to the job
* pkgid (> 0) pkgid (> 0)
* -> add (SOLVER_INSTALL|SOLVER_SOLVABLE, rp) to the job
* (this will replace package p)
- *
+ *
* Thus, the solver will either ask the application to remove
* a specific job from the job queue, or ask to add an install/erase
* job to it.
{
int i;
+ if (p == SOLVER_SOLUTION_POOLJOB)
+ {
+ solv->pool->pooljobs.elements[rp - 1] = SOLVER_NOOP;
+ solv->pool->pooljobs.elements[rp] = 0;
+ return;
+ }
if (p == SOLVER_SOLUTION_JOB)
{
job->elements[rp - 1] = SOLVER_NOOP;
if (rp <= 0 && p <= 0)
return; /* just in case */
if (rp > 0)
- p = SOLVER_INSTALL|SOLVER_SOLVABLE|extrajobflags;
+ p = SOLVER_INSTALL|SOLVER_SOLVABLE|SOLVER_NOTBYUSER|extrajobflags;
else
{
rp = p;
/*-------------------------------------------------------------------
- *
+ *
* find problem rule
*/
static void
-findproblemrule_internal(Solver *solv, Id idx, Id *reqrp, Id *conrp, Id *sysrp, Id *jobrp)
+findproblemrule_internal(Solver *solv, Id idx, Id *reqrp, Id *conrp, Id *sysrp, Id *jobrp, Map *rseen)
{
Id rid, d;
Id lreqr, lconr, lsysr, ljobr;
Rule *r;
Id jobassert = 0;
int i, reqset = 0; /* 0: unset, 1: installed, 2: jobassert, 3: assert */
+ int conset = 0; /* 0: unset, 1: installed */
/* find us a jobassert rule */
for (i = idx; (rid = solv->learnt_pool.elements[i]) != 0; i++)
{
assert(rid > 0);
if (rid >= solv->learntrules)
- findproblemrule_internal(solv, solv->learnt_why.elements[rid - solv->learntrules], &lreqr, &lconr, &lsysr, &ljobr);
- else if ((rid >= solv->jobrules && rid < solv->jobrules_end) || (rid >= solv->infarchrules && rid < solv->infarchrules_end) || (rid >= solv->duprules && rid < solv->duprules_end))
+ {
+ if (MAPTST(rseen, rid - solv->learntrules))
+ continue;
+ MAPSET(rseen, rid - solv->learntrules);
+ findproblemrule_internal(solv, solv->learnt_why.elements[rid - solv->learntrules], &lreqr, &lconr, &lsysr, &ljobr, rseen);
+ }
+ else if ((rid >= solv->jobrules && rid < solv->jobrules_end) || (rid >= solv->infarchrules && rid < solv->infarchrules_end) || (rid >= solv->duprules && rid < solv->duprules_end) || (rid >= solv->bestrules && rid < solv->bestrules_end) || (rid >= solv->yumobsrules && rid <= solv->yumobsrules_end))
{
if (!*jobrp)
*jobrp = rid;
}
else
{
- assert(rid < solv->rpmrules_end);
+ assert(rid < solv->pkgrules_end);
r = solv->rules + rid;
d = r->d < 0 ? -r->d - 1 : r->d;
if (!d && r->w2 < 0)
{
+ /* prefer conflicts of installed packages */
+ if (solv->installed && !conset)
+ {
+ if (r->p < 0 && (solv->pool->solvables[-r->p].repo == solv->installed ||
+ solv->pool->solvables[-r->w2].repo == solv->installed))
+ {
+ *conrp = rid;
+ conset = 1;
+ }
+ }
if (!*conrp)
*conrp = rid;
}
{
if (*reqrp > 0 && r->p < -1)
{
+ Pool *pool = solv->pool;
Id op = -solv->rules[*reqrp].p;
- if (op > 1 && solv->pool->solvables[op].arch != solv->pool->solvables[-r->p].arch)
+ if (op > 1 && pool->solvables[op].arch != pool->solvables[-r->p].arch &&
+ pool->solvables[op].arch != pool->noarchid &&
+ pool->solvables[-r->p].arch != pool->noarchid)
continue; /* different arch, skip */
}
/* prefer assertions */
*sysrp = lsysr;
}
-/*
+/*
* find problem rule
*
* search for a rule that describes the problem to the
{
Id reqr, conr, sysr, jobr;
Id idx = solv->problems.elements[2 * problem - 2];
+ Map rseen;
reqr = conr = sysr = jobr = 0;
- findproblemrule_internal(solv, idx, &reqr, &conr, &sysr, &jobr);
+ map_init(&rseen, solv->learntrules ? solv->nrules - solv->learntrules : 0);
+ findproblemrule_internal(solv, idx, &reqr, &conr, &sysr, &jobr, &rseen);
+ map_free(&rseen);
+ /* check if the request is about a not-installed package requiring a installed
+ * package conflicting with the non-installed package. In that case return the conflict */
+ if (reqr && conr && solv->installed && solv->rules[reqr].p < 0 && solv->rules[conr].p < 0 && solv->rules[conr].w2 < 0)
+ {
+ Pool *pool = solv->pool;
+ Solvable *s = pool->solvables - solv->rules[reqr].p;
+ Solvable *s1 = pool->solvables - solv->rules[conr].p;
+ Solvable *s2 = pool->solvables - solv->rules[conr].w2;
+ Id cp = 0;
+ if (s == s1 && s2->repo == solv->installed)
+ cp = -solv->rules[conr].w2;
+ else if (s == s2 && s1->repo == solv->installed)
+ cp = -solv->rules[conr].p;
+ if (cp && s1->name != s2->name && s->repo != solv->installed)
+ {
+ Id p, pp;
+ Rule *r = solv->rules + reqr;
+ FOR_RULELITERALS(p, pp, r)
+ if (p == cp)
+ return conr;
+ }
+ }
if (reqr)
return reqr; /* some requires */
if (conr)
/*-------------------------------------------------------------------*/
static void
-findallproblemrules_internal(Solver *solv, Id idx, Queue *rules)
+findallproblemrules_internal(Solver *solv, Id idx, Queue *rules, Map *rseen)
{
Id rid;
while ((rid = solv->learnt_pool.elements[idx++]) != 0)
{
if (rid >= solv->learntrules)
{
- findallproblemrules_internal(solv, solv->learnt_why.elements[rid - solv->learntrules], rules);
+ if (MAPTST(rseen, rid - solv->learntrules))
+ continue;
+ MAPSET(rseen, rid - solv->learntrules);
+ findallproblemrules_internal(solv, solv->learnt_why.elements[rid - solv->learntrules], rules, rseen);
continue;
}
queue_pushunique(rules, rid);
void
solver_findallproblemrules(Solver *solv, Id problem, Queue *rules)
{
+ Map rseen;
queue_empty(rules);
- findallproblemrules_internal(solv, solv->problems.elements[2 * problem - 2], rules);
+ map_init(&rseen, solv->learntrules ? solv->nrules - solv->learntrules : 0);
+ findallproblemrules_internal(solv, solv->problems.elements[2 * problem - 2], rules, &rseen);
+ map_free(&rseen);
+}
+
+const char *
+solver_problemruleinfo2str(Solver *solv, SolverRuleinfo type, Id source, Id target, Id dep)
+{
+ Pool *pool = solv->pool;
+ char *s;
+ Solvable *ss;
+ switch (type)
+ {
+ case SOLVER_RULE_DISTUPGRADE:
+ return pool_tmpjoin(pool, pool_solvid2str(pool, source), " does not belong to a distupgrade repository", 0);
+ case SOLVER_RULE_INFARCH:
+ return pool_tmpjoin(pool, pool_solvid2str(pool, source), " has inferior architecture", 0);
+ case SOLVER_RULE_UPDATE:
+ return pool_tmpjoin(pool, "problem with installed package ", pool_solvid2str(pool, source), 0);
+ case SOLVER_RULE_JOB:
+ return "conflicting requests";
+ case SOLVER_RULE_JOB_UNSUPPORTED:
+ return "unsupported request";
+ case SOLVER_RULE_JOB_NOTHING_PROVIDES_DEP:
+ return pool_tmpjoin(pool, "nothing provides requested ", pool_dep2str(pool, dep), 0);
+ case SOLVER_RULE_JOB_UNKNOWN_PACKAGE:
+ return pool_tmpjoin(pool, "package ", pool_dep2str(pool, dep), " does not exist");
+ case SOLVER_RULE_JOB_PROVIDED_BY_SYSTEM:
+ return pool_tmpjoin(pool, pool_dep2str(pool, dep), " is provided by the system", 0);
+ case SOLVER_RULE_PKG:
+ return "some dependency problem";
+ case SOLVER_RULE_BEST:
+ if (source > 0)
+ return pool_tmpjoin(pool, "cannot install the best update candidate for package ", pool_solvid2str(pool, source), 0);
+ return "cannot install the best candidate for the job";
+ case SOLVER_RULE_PKG_NOT_INSTALLABLE:
+ ss = pool->solvables + source;
+ if (pool_disabled_solvable(pool, ss))
+ return pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), " is disabled");
+ if (ss->arch && ss->arch != ARCH_SRC && ss->arch != ARCH_NOSRC &&
+ pool->id2arch && pool_arch2score(pool, ss->arch) == 0)
+ return pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), " does not have a compatible architecture");
+ return pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), " is not installable");
+ case SOLVER_RULE_PKG_NOTHING_PROVIDES_DEP:
+ s = pool_tmpjoin(pool, "nothing provides ", pool_dep2str(pool, dep), 0);
+ return pool_tmpappend(pool, s, " needed by ", pool_solvid2str(pool, source));
+ case SOLVER_RULE_PKG_SAME_NAME:
+ s = pool_tmpjoin(pool, "cannot install both ", pool_solvid2str(pool, source), 0);
+ return pool_tmpappend(pool, s, " and ", pool_solvid2str(pool, target));
+ case SOLVER_RULE_PKG_CONFLICTS:
+ s = pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), 0);
+ s = pool_tmpappend(pool, s, " conflicts with ", pool_dep2str(pool, dep));
+ return pool_tmpappend(pool, s, " provided by ", pool_solvid2str(pool, target));
+ case SOLVER_RULE_PKG_OBSOLETES:
+ s = pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), 0);
+ s = pool_tmpappend(pool, s, " obsoletes ", pool_dep2str(pool, dep));
+ return pool_tmpappend(pool, s, " provided by ", pool_solvid2str(pool, target));
+ case SOLVER_RULE_PKG_INSTALLED_OBSOLETES:
+ s = pool_tmpjoin(pool, "installed package ", pool_solvid2str(pool, source), 0);
+ s = pool_tmpappend(pool, s, " obsoletes ", pool_dep2str(pool, dep));
+ return pool_tmpappend(pool, s, " provided by ", pool_solvid2str(pool, target));
+ case SOLVER_RULE_PKG_IMPLICIT_OBSOLETES:
+ s = pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), 0);
+ s = pool_tmpappend(pool, s, " implicitly obsoletes ", pool_dep2str(pool, dep));
+ return pool_tmpappend(pool, s, " provided by ", pool_solvid2str(pool, target));
+ case SOLVER_RULE_PKG_REQUIRES:
+ s = pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), " requires ");
+ return pool_tmpappend(pool, s, pool_dep2str(pool, dep), ", but none of the providers can be installed");
+ case SOLVER_RULE_PKG_SELF_CONFLICT:
+ s = pool_tmpjoin(pool, "package ", pool_solvid2str(pool, source), " conflicts with ");
+ return pool_tmpappend(pool, s, pool_dep2str(pool, dep), " provided by itself");
+ case SOLVER_RULE_YUMOBS:
+ s = pool_tmpjoin(pool, "both package ", pool_solvid2str(pool, source), " and ");
+ s = pool_tmpjoin(pool, s, pool_solvid2str(pool, target), " obsolete ");
+ return pool_tmpappend(pool, s, pool_dep2str(pool, dep), 0);
+ default:
+ return "bad problem rule type";
+ }
+}
+
+/* convenience function */
+const char *
+solver_problem2str(Solver *solv, Id problem)
+{
+ Id type, source, target, dep;
+ Id r = solver_findproblemrule(solv, problem);
+ if (!r)
+ return "no problem rule?";
+ type = solver_ruleinfo(solv, r, &source, &target, &dep);
+ return solver_problemruleinfo2str(solv, type, source, target, dep);
+}
+
+const char *
+solver_solutionelement2str(Solver *solv, Id p, Id rp)
+{
+ Pool *pool = solv->pool;
+ if (p == SOLVER_SOLUTION_JOB || p == SOLVER_SOLUTION_POOLJOB)
+ {
+ Id how, what;
+ if (p == SOLVER_SOLUTION_JOB)
+ rp += solv->pooljobcnt;
+ how = solv->job.elements[rp - 1];
+ what = solv->job.elements[rp];
+ return pool_tmpjoin(pool, "do not ask to ", pool_job2str(pool, how, what, 0), 0);
+ }
+ else if (p == SOLVER_SOLUTION_INFARCH)
+ {
+ Solvable *s = pool->solvables + rp;
+ if (solv->installed && s->repo == solv->installed)
+ return pool_tmpjoin(pool, "keep ", pool_solvable2str(pool, s), " despite the inferior architecture");
+ else
+ return pool_tmpjoin(pool, "install ", pool_solvable2str(pool, s), " despite the inferior architecture");
+ }
+ else if (p == SOLVER_SOLUTION_DISTUPGRADE)
+ {
+ Solvable *s = pool->solvables + rp;
+ if (solv->installed && s->repo == solv->installed)
+ return pool_tmpjoin(pool, "keep obsolete ", pool_solvable2str(pool, s), 0);
+ else
+ return pool_tmpjoin(pool, "install ", pool_solvable2str(pool, s), " from excluded repository");
+ }
+ else if (p == SOLVER_SOLUTION_BEST)
+ {
+ Solvable *s = pool->solvables + rp;
+ if (solv->installed && s->repo == solv->installed)
+ return pool_tmpjoin(pool, "keep old ", pool_solvable2str(pool, s), 0);
+ else
+ return pool_tmpjoin(pool, "install ", pool_solvable2str(pool, s), " despite the old version");
+ }
+ else if (p > 0 && rp == 0)
+ return pool_tmpjoin(pool, "allow deinstallation of ", pool_solvid2str(pool, p), 0);
+ else if (p > 0 && rp > 0)
+ {
+ const char *sp = pool_solvid2str(pool, p);
+ const char *srp = pool_solvid2str(pool, rp);
+ const char *str = pool_tmpjoin(pool, "allow replacement of ", sp, 0);
+ return pool_tmpappend(pool, str, " with ", srp);
+ }
+ else
+ return "bad solution element";
}
-/* EOF */
projects / platform / upstream / libsolv.git / blobdiff