repo.c

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/*
 * Copyright (c) 2007, Novell Inc.
 *
 * This program is licensed under the BSD license, read LICENSE.BSD
 * for further information
 */

/*
 * repo.c
 *
 * Manage metadata coming from one repository
 * 
 */

#define _GNU_SOURCE
#include <string.h>
#include <fnmatch.h>

#include <stdio.h>
#include <stdlib.h>



#include "repo.h"
#include "pool.h"
#include "poolid_private.h"
#include "util.h"
#if 0
#include "attr_store_p.h"
#endif

#define IDARRAY_BLOCK     4095


/*
 * create empty repo
 * and add to pool
 */

Repo *
repo_create(Pool *pool, const char *name)
{
  Repo *repo;

  pool_freewhatprovides(pool);
  repo = (Repo *)sat_calloc(1, sizeof(*repo));
  pool->repos = (Repo **)sat_realloc2(pool->repos, pool->nrepos + 1, sizeof(Repo *));
  pool->repos[pool->nrepos++] = repo;
  repo->repoid = pool->nrepos;
  repo->name = name ? strdup(name) : 0;
  repo->pool = pool;
  repo->start = pool->nsolvables;
  repo->end = pool->nsolvables;
  repo->nsolvables = 0;
  return repo;
}

static void
repo_freedata(Repo *repo)
{
  int i;
  for (i = 0; i < repo->nrepodata; i++)
    repodata_freedata(repo->repodata + i);
  sat_free(repo->repodata);
  sat_free(repo->idarraydata);
  sat_free(repo->rpmdbid);
  sat_free((char *)repo->name);
  sat_free(repo);
}

/* delete all solvables and repodata blocks from this repo */

void
repo_empty(Repo *repo, int reuseids)
{
  Pool *pool = repo->pool;
  Solvable *s;
  int i;

  pool_freewhatprovides(pool);
  if (repo == pool->installed)
    pool->installed = 0;

  if (reuseids && repo->end == pool->nsolvables)
    {
      /* it's ok to reuse the ids. As this is the last repo, we can
         just shrink the solvable array */
      for (i = repo->end - 1, s = pool->solvables + i; i >= repo->start; i--, s--)
        if (s->repo != repo)
          break;
      pool_free_solvable_block(pool, i + 1, repo->end - (i + 1), reuseids);
    }
  /* zero out (i.e. free) solvables belonging to this repo */
  for (i = repo->start, s = pool->solvables + i; i < repo->end; i++, s++)
    if (s->repo == repo)
      memset(s, 0, sizeof(*s));
  repo->nsolvables = 0;

  /* free all data belonging to this repo */
  repo->idarraydata = sat_free(repo->idarraydata);
  repo->idarraysize = 0;
  repo->lastoff = 0;
  repo->rpmdbid = sat_free(repo->rpmdbid);
  for (i = 0; i < repo->nrepodata; i++)
    repodata_freedata(repo->repodata + i);
  sat_free(repo->repodata);
  repo->repodata = 0;
  repo->nrepodata = 0;
}

/*
 * remove repo from pool, delete solvables 
 * 
 */

void
repo_free(Repo *repo, int reuseids)
{
  Pool *pool = repo->pool;
  int i;

  repo_empty(repo, reuseids);
  for (i = 0; i < pool->nrepos; i++)    /* find repo in pool */
    if (pool->repos[i] == repo)
      break;
  if (i == pool->nrepos)               /* repo not in pool, return */
    return;
  if (i < pool->nrepos - 1)
    {
      memmove(pool->repos + i, pool->repos + i + 1, (pool->nrepos - 1 - i) * sizeof(Repo *));
      /* fix repo ids */
      for (; i < pool->nrepos - 1; i++)
        pool->repos[i]->repoid = i + 1;
    }
  pool->nrepos--;
  repo_freedata(repo);
}

void
repo_freeallrepos(Pool *pool, int reuseids)
{
  int i;

  pool_freewhatprovides(pool);
  for (i = 0; i < pool->nrepos; i++)
    repo_freedata(pool->repos[i]);
  pool->repos = sat_free(pool->repos);
  pool->nrepos = 0;
  /* the first two solvables don't belong to a repo */
  pool_free_solvable_block(pool, 2, pool->nsolvables - 2, reuseids);
}

void repo_free_solvable_block(Repo *repo, Id start, int count, int reuseids)
{
  Solvable *s; 
  Repodata *data;
  int i;
  if (start + count == repo->end)
    repo->end -= count;
  repo->nsolvables -= count;
  for (s = repo->pool->solvables + start, i = count; i--; s++)
    s->repo = 0;
  pool_free_solvable_block(repo->pool, start, count, reuseids);
  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    if (data->end > repo->end)
      repodata_shrink(data, repo->end);
}


/* repository sidedata is solvable data allocated on demand.
 * It is used for data that is normally not present
 * in the solvable like the rpmdbid.
 * The solvable allocation funcions need to make sure that
 * the sidedata gets extended if new solvables get added.
 */

#define REPO_SIDEDATA_BLOCK 63

void *
repo_sidedata_create(Repo *repo, size_t size)
{
  return sat_calloc_block(repo->end - repo->start, size, REPO_SIDEDATA_BLOCK);
}

void *
repo_sidedata_extend(Repo *repo, void *b, size_t size, Id p, int count)
{ 
  int n = repo->end - repo->start;
  if (p < repo->start)
    { 
      int d = repo->start - p;
      b = sat_extend(b, n, d, size, REPO_SIDEDATA_BLOCK);
      memmove((char *)b + d * size, b, n * size);
      memset(b, 0, d * size);
      n += d;
    }     
  if (p + count > repo->end)
    { 
      int d = p + count - repo->end;
      b = sat_extend(b, n, d, size, REPO_SIDEDATA_BLOCK);
      memset((char *)b + n * size, 0, d * size);
    }     
  return b;
}

/*
 * add Id to idarraydata used to store dependencies
 * olddeps: old array offset to extend
 * returns new array offset
 */

Offset
repo_addid(Repo *repo, Offset olddeps, Id id)
{
  Id *idarray;
  int idarraysize;
  int i;
  
  idarray = repo->idarraydata;
  idarraysize = repo->idarraysize;

  if (!idarray)                        /* alloc idarray if not done yet */
    {
      idarraysize = 1;
      idarray = sat_extend_resize(0, 1, sizeof(Id), IDARRAY_BLOCK);
      idarray[0] = 0;
      repo->lastoff = 0;
    }

  if (!olddeps)                         /* no deps yet */
    {   
      olddeps = idarraysize;
      idarray = sat_extend(idarray, idarraysize, 1, sizeof(Id), IDARRAY_BLOCK);
    }   
  else if (olddeps == repo->lastoff)    /* extend at end */
    idarraysize--;
  else                                  /* can't extend, copy old */
    {
      i = olddeps;
      olddeps = idarraysize;
      for (; idarray[i]; i++)
        {
          idarray = sat_extend(idarray, idarraysize, 1, sizeof(Id), IDARRAY_BLOCK);
          idarray[idarraysize++] = idarray[i];
        }
      idarray = sat_extend(idarray, idarraysize, 1, sizeof(Id), IDARRAY_BLOCK);
    }
  
  idarray[idarraysize++] = id;          /* insert Id into array */
  idarray = sat_extend(idarray, idarraysize, 1, sizeof(Id), IDARRAY_BLOCK);
  idarray[idarraysize++] = 0;           /* ensure NULL termination */

  repo->idarraydata = idarray;
  repo->idarraysize = idarraysize;
  repo->lastoff = olddeps;

  return olddeps;
}


/*
 * add dependency (as Id) to repo, also unifies dependencies
 * olddeps = offset into idarraydata
 * marker= 0 for normal dep
 * marker > 0 add dep after marker
 * marker < 0 add dep after -marker
 * returns new start of dependency array
 */
Offset
repo_addid_dep(Repo *repo, Offset olddeps, Id id, Id marker)
{
  Id oid, *oidp, *markerp;
  int before;

  if (!olddeps)
    {
      if (marker > 0)
        olddeps = repo_addid(repo, olddeps, marker);
      return repo_addid(repo, olddeps, id);
    }

  if (!marker)
    {
      for (oidp = repo->idarraydata + olddeps; (oid = *oidp) != ID_NULL; oidp++)
        {
          if (oid == id)
            return olddeps;
        }
      return repo_addid(repo, olddeps, id);
    }

  before = 0;
  markerp = 0;
  if (marker < 0)
    {
      before = 1;
      marker = -marker;
    }
  for (oidp = repo->idarraydata + olddeps; (oid = *oidp) != ID_NULL; oidp++)
    {
      if (oid == marker)
        markerp = oidp;
      else if (oid == id)
        break;
    }

  if (oid)
    {
      if (markerp || before)
        return olddeps;
      /* we found it, but in the wrong half */
      markerp = oidp++;
      for (; (oid = *oidp) != ID_NULL; oidp++)
        if (oid == marker)
          break;
      if (!oid)
        {
          /* no marker in array yet */
          oidp--;
          if (markerp < oidp)
            memmove(markerp, markerp + 1, (oidp - markerp) * sizeof(Id));
          *oidp = marker;
          return repo_addid(repo, olddeps, id);
        }
      while (oidp[1])
        oidp++;
      memmove(markerp, markerp + 1, (oidp - markerp) * sizeof(Id));
      *oidp = id;
      return olddeps;
    }
  /* id not yet in array */
  if (!before && !markerp)
    olddeps = repo_addid(repo, olddeps, marker);
  else if (before && markerp)
    {
      *markerp++ = id;
      id = *--oidp;
      if (markerp < oidp)
        memmove(markerp + 1, markerp, (oidp - markerp) * sizeof(Id));
      *markerp = marker;
    }
  return repo_addid(repo, olddeps, id);
}


/*
 * reserve Ids
 * make space for 'num' more dependencies
 * returns new start of dependency array
 *
 * reserved ids will always begin at offset idarraysize
 */

Offset
repo_reserve_ids(Repo *repo, Offset olddeps, int num)
{
  num++;        /* room for trailing ID_NULL */

  if (!repo->idarraysize)              /* ensure buffer space */
    {
      repo->idarraysize = 1;
      repo->idarraydata = sat_extend_resize(0, 1 + num, sizeof(Id), IDARRAY_BLOCK);
      repo->idarraydata[0] = 0;
      repo->lastoff = 1;
      return 1;
    }

  if (olddeps && olddeps != repo->lastoff)   /* if not appending */
    {
      /* can't insert into idarray, this would invalidate all 'larger' offsets
       * so create new space at end and move existing deps there.
       * Leaving 'hole' at old position.
       */
      
      Id *idstart, *idend;
      int count;

      for (idstart = idend = repo->idarraydata + olddeps; *idend++; )   /* find end */
        ;
      count = idend - idstart - 1 + num;               /* new size */

      repo->idarraydata = sat_extend(repo->idarraydata, repo->idarraysize, count, sizeof(Id), IDARRAY_BLOCK);
      /* move old deps to end */
      olddeps = repo->lastoff = repo->idarraysize;
      memcpy(repo->idarraydata + olddeps, idstart, count - num);
      repo->idarraysize = olddeps + count - num;

      return olddeps;
    }

  if (olddeps)                         /* appending */
    repo->idarraysize--;

  /* make room*/
  repo->idarraydata = sat_extend(repo->idarraydata, repo->idarraysize, num, sizeof(Id), IDARRAY_BLOCK);

  /* appending or new */
  repo->lastoff = olddeps ? olddeps : repo->idarraysize;

  return repo->lastoff;
}



Offset
repo_fix_supplements(Repo *repo, Offset provides, Offset supplements, Offset freshens)
{
  Pool *pool = repo->pool;
  Id id, idp, idl;
  char buf[1024], *p, *dep;
  int i, l;

  if (provides)
    {
      for (i = provides; repo->idarraydata[i]; i++)
        {
          id = repo->idarraydata[i];
          if (ISRELDEP(id))
            continue;
          dep = (char *)id2str(pool, id);
          if (!strncmp(dep, "locale(", 7) && strlen(dep) < sizeof(buf) - 2)
            {
              idp = 0;
              strcpy(buf + 2, dep);
              dep = buf + 2 + 7;
              if ((p = strchr(dep, ':')) != 0 && p != dep)
                {
                  *p++ = 0;
                  idp = str2id(pool, dep, 1);
                  dep = p;
                }
              id = 0;
              while ((p = strchr(dep, ';')) != 0)
                {
                  if (p == dep)
                    {
                      dep = p + 1;
                      continue;
                    }
                  *p++ = 0;
#if 0
                  strncpy(dep - 9, "language:", 9);
                  idl = str2id(pool, dep - 9, 1);
#else
                  idl = str2id(pool, dep, 1);
                  idl = rel2id(pool, NAMESPACE_LANGUAGE, idl, REL_NAMESPACE, 1);
#endif
                  if (id)
                    id = rel2id(pool, id, idl, REL_OR, 1);
                  else
                    id = idl;
                  dep = p;
                }
              if (dep[0] && dep[1])
                {
                  for (p = dep; *p && *p != ')'; p++)
                    ;
                  *p = 0;
#if 0
                  strncpy(dep - 9, "language:", 9);
                  idl = str2id(pool, dep - 9, 1);
#else
                  idl = str2id(pool, dep, 1);
                  idl = rel2id(pool, NAMESPACE_LANGUAGE, idl, REL_NAMESPACE, 1);
#endif
                  if (id)
                    id = rel2id(pool, id, idl, REL_OR, 1);
                  else
                    id = idl;
                }
              if (idp)
                id = rel2id(pool, idp, id, REL_AND, 1);
              if (id)
                supplements = repo_addid_dep(repo, supplements, id, 0);
            }
          else if ((p = strchr(dep, ':')) != 0 && p != dep && p[1] == '/' && strlen(dep) < sizeof(buf))
            {
              strcpy(buf, dep);
              p = buf + (p - dep);
              *p++ = 0;
              idp = str2id(pool, buf, 1);
              /* strip trailing slashes */
              l = strlen(p);
              while (l > 1 && p[l - 1] == '/')
                p[--l] = 0;
              id = str2id(pool, p, 1);
              id = rel2id(pool, idp, id, REL_WITH, 1);
              id = rel2id(pool, NAMESPACE_SPLITPROVIDES, id, REL_NAMESPACE, 1);
              supplements = repo_addid_dep(repo, supplements, id, 0);
            }
        }
    }
  if (supplements)
    {
      for (i = supplements; repo->idarraydata[i]; i++)
        {
          id = repo->idarraydata[i];
          if (ISRELDEP(id))
            continue;
          dep = (char *)id2str(pool, id);
          if (!strncmp(dep, "system:modalias(", 16))
            dep += 7;
          if (!strncmp(dep, "modalias(", 9) && dep[9] && dep[10] && strlen(dep) < sizeof(buf))
            {
              strcpy(buf, dep);
              p = strchr(buf + 9, ':');
              if (p && p != buf + 9 && strchr(p + 1, ':'))
                {
                  *p++ = 0;
                  idp = str2id(pool, buf + 9, 1);
                  p[strlen(p) - 1] = 0;
                  id = str2id(pool, p, 1);
                  id = rel2id(pool, NAMESPACE_MODALIAS, id, REL_NAMESPACE, 1);
                  id = rel2id(pool, idp, id, REL_AND, 1);
                }
              else
                {
                  p = buf + 9;
                  p[strlen(p) - 1] = 0;
                  id = str2id(pool, p, 1);
                  id = rel2id(pool, NAMESPACE_MODALIAS, id, REL_NAMESPACE, 1);
                }
              if (id)
                repo->idarraydata[i] = id;
            }
          else if (!strncmp(dep, "packageand(", 11) && strlen(dep) < sizeof(buf))
            {
              strcpy(buf, dep);
              id = 0;
              dep = buf + 11;
              while ((p = strchr(dep, ':')) != 0)
                {
                  if (p == dep)
                    {
                      dep = p + 1;
                      continue;
                    }
                  *p++ = 0;
                  idp = str2id(pool, dep, 1);
                  if (id)
                    id = rel2id(pool, id, idp, REL_AND, 1);
                  else
                    id = idp;
                  dep = p;
                }
              if (dep[0] && dep[1])
                {
                  dep[strlen(dep) - 1] = 0;
                  idp = str2id(pool, dep, 1);
                  if (id)
                    id = rel2id(pool, id, idp, REL_AND, 1);
                  else
                    id = idp;
                }
              if (id)
                repo->idarraydata[i] = id;
            }
          else if (!strncmp(dep, "filesystem(", 11) && strlen(dep) < sizeof(buf))
            {
              strcpy(buf, dep + 11);
              if ((p = strrchr(buf, ')')) != 0)
                *p = 0;
              id = str2id(pool, buf, 1);
              id = rel2id(pool, NAMESPACE_FILESYSTEM, id, REL_NAMESPACE, 1);
              repo->idarraydata[i] = id;
            }
        }
    }
  if (freshens && repo->idarraydata[freshens])
    {
      Id idsupp = 0, idfresh = 0;
      if (!supplements)
        return freshens;
      for (i = supplements; repo->idarraydata[i]; i++)
        {
          if (!idsupp)
            idsupp = repo->idarraydata[i];
          else
            idsupp = rel2id(pool, idsupp, repo->idarraydata[i], REL_OR, 1);
        }
      for (i = freshens; repo->idarraydata[i]; i++)
        {
          if (!idfresh)
            idfresh = repo->idarraydata[i];
          else
            idfresh = rel2id(pool, idfresh, repo->idarraydata[i], REL_OR, 1);
        }
      if (!idsupp)
        idsupp = idfresh;
      else
        idsupp = rel2id(pool, idsupp, idfresh, REL_AND, 1);
      supplements = repo_addid_dep(repo, 0, idsupp, 0);
    }
  return supplements;
}

Offset
repo_fix_conflicts(Repo *repo, Offset conflicts)
{
  char buf[1024], *p, *dep;
  Pool *pool = repo->pool;
  Id id;
  int i;

  if (!conflicts)
    return conflicts;
  for (i = conflicts; repo->idarraydata[i]; i++)
    {
      id = repo->idarraydata[i];
      if (ISRELDEP(id))
        continue;
      dep = (char *)id2str(pool, id);
      if (!strncmp(dep, "otherproviders(", 15) && strlen(dep) < sizeof(buf) - 2)
        {
          strcpy(buf, dep + 15);
          if ((p = strchr(buf, ')')) != 0)
            *p = 0;
          id = str2id(pool, buf, 1);
          id = rel2id(pool, NAMESPACE_OTHERPROVIDERS, id, REL_NAMESPACE, 1);
          repo->idarraydata[i] = id;
        }
    }
  return conflicts;
}

struct matchdata
{
  Pool *pool;
  int flags;
  Datamatcher matcher;
  int stop;
  int (*callback)(void *cbdata, Solvable *s, Repodata *data, Repokey *key, KeyValue *kv);
  void *callback_data;
};

int
repo_matchvalue(void *cbdata, Solvable *s, Repodata *data, Repokey *key, KeyValue *kv)
{
  struct matchdata *md = cbdata;

  if (md->matcher.match)
    {
      if (!repodata_stringify(md->pool, data, key, kv, md->flags))
        return 0;
      if (!datamatcher_match(&md->matcher, kv->str))
        return 0;
    }
  md->stop = md->callback(md->callback_data, s, data, key, kv);
  return md->stop;
}


static Repokey solvablekeys[RPM_RPMDBID - SOLVABLE_NAME + 1] = {
  { SOLVABLE_NAME,        REPOKEY_TYPE_ID, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_ARCH,        REPOKEY_TYPE_ID, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_EVR,         REPOKEY_TYPE_ID, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_VENDOR,      REPOKEY_TYPE_ID, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_PROVIDES,    REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_OBSOLETES,   REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_CONFLICTS,   REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_REQUIRES,    REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_RECOMMENDS,  REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_SUGGESTS,    REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_SUPPLEMENTS, REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { SOLVABLE_ENHANCES,    REPOKEY_TYPE_IDARRAY, 0, KEY_STORAGE_SOLVABLE },
  { RPM_RPMDBID,          REPOKEY_TYPE_U32, 0, KEY_STORAGE_SOLVABLE },
};

static void
domatch_idarray(Solvable *s, Id keyname, struct matchdata *md, Id *ida)
{
  KeyValue kv;
  kv.entry = 0;
  kv.parent = 0;
  for (; *ida && !md->stop; ida++)
    {
      kv.id = *ida;
      kv.eof = ida[1] ? 0 : 1;
      repo_matchvalue(md, s, 0, solvablekeys + (keyname - SOLVABLE_NAME), &kv);
      kv.entry++;
    }
}

static void
repo_search_md(Repo *repo, Id p, Id keyname, struct matchdata *md)
{
  KeyValue kv;
  Pool *pool = repo->pool;
  Repodata *data;
  int i, j, flags;
  Solvable *s;

  kv.parent = 0;
  md->stop = 0;
  if (!p)
    {
      for (p = repo->start, s = repo->pool->solvables + p; p < repo->end; p++, s++)
        {
          if (s->repo == repo)
            repo_search_md(repo, p, keyname, md);
          if (md->stop > SEARCH_NEXT_SOLVABLE)
            break;
        }
      return;
    }
  else if (p < 0)
    /* The callback only supports solvables, so we can't iterate over the
       extra things.  */
    return;
  flags = md->flags;
  if (!(flags & SEARCH_NO_STORAGE_SOLVABLE))
    {
      s = pool->solvables + p;
      switch(keyname)
        {
          case 0:
          case SOLVABLE_NAME:
            if (s->name)
              {
                kv.id = s->name;
                repo_matchvalue(md, s, 0, solvablekeys + 0, &kv);
              }
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_ARCH:
            if (s->arch)
              {
                kv.id = s->arch;
                repo_matchvalue(md, s, 0, solvablekeys + 1, &kv);
              }
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_EVR:
            if (s->evr)
              {
                kv.id = s->evr;
                repo_matchvalue(md, s, 0, solvablekeys + 2, &kv);
              }
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_VENDOR:
            if (s->vendor)
              {
                kv.id = s->vendor;
                repo_matchvalue(md, s, 0, solvablekeys + 3, &kv);
              }
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_PROVIDES:
            if (s->provides)
              domatch_idarray(s, SOLVABLE_PROVIDES, md, repo->idarraydata + s->provides);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_OBSOLETES:
            if (s->obsoletes)
              domatch_idarray(s, SOLVABLE_OBSOLETES, md, repo->idarraydata + s->obsoletes);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_CONFLICTS:
            if (s->conflicts)
              domatch_idarray(s, SOLVABLE_CONFLICTS, md, repo->idarraydata + s->conflicts);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_REQUIRES:
            if (s->requires)
              domatch_idarray(s, SOLVABLE_REQUIRES, md, repo->idarraydata + s->requires);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_RECOMMENDS:
            if (s->recommends)
              domatch_idarray(s, SOLVABLE_RECOMMENDS, md, repo->idarraydata + s->recommends);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_SUPPLEMENTS:
            if (s->supplements)
              domatch_idarray(s, SOLVABLE_SUPPLEMENTS, md, repo->idarraydata + s->supplements);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_SUGGESTS:
            if (s->suggests)
              domatch_idarray(s, SOLVABLE_SUGGESTS, md, repo->idarraydata + s->suggests);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case SOLVABLE_ENHANCES:
            if (s->enhances)
              domatch_idarray(s, SOLVABLE_ENHANCES, md, repo->idarraydata + s->enhances);
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
          case RPM_RPMDBID:
            if (repo->rpmdbid)
              {
                kv.num = repo->rpmdbid[p - repo->start];
                repo_matchvalue(md, s, 0, solvablekeys + (RPM_RPMDBID - SOLVABLE_NAME), &kv);
              }
            if (keyname || md->stop > SEARCH_NEXT_KEY)
              return;
            break;
          default:
            break;
        }
    }

  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    {
      if (p < data->start || p >= data->end)
        continue;
      if (keyname && !repodata_precheck_keyname(data, keyname))
        continue;
      if (keyname == SOLVABLE_FILELIST && !(md->flags & SEARCH_COMPLETE_FILELIST))
        {
          /* do not search filelist extensions */
          if (data->state != REPODATA_AVAILABLE)
            continue;
          for (j = 1; j < data->nkeys; j++)
            if (data->keys[j].name != REPOSITORY_SOLVABLES && data->keys[j].name != SOLVABLE_FILELIST)
              break;
          if (j == data->nkeys)
            continue;
        }
      if (data->state == REPODATA_STUB)
        {
          if (keyname)
            {
              for (j = 1; j < data->nkeys; j++)
                if (keyname == data->keys[j].name)
                  break;
              if (j == data->nkeys)
                continue;
            }
          /* load it */
          if (data->loadcallback)
            data->loadcallback(data);
          else
            data->state = REPODATA_ERROR;
        }
      if (data->state == REPODATA_ERROR)
        continue;
      repodata_search(data, p, keyname, md->flags, repo_matchvalue, md);
      if (md->stop > SEARCH_NEXT_KEY)
        break;
    }
}

void
repo_search(Repo *repo, Id p, Id keyname, const char *match, int flags, int (*callback)(void *cbdata, Solvable *s, Repodata *data, Repokey *key, KeyValue *kv), void *cbdata)
{
  struct matchdata md;

  if (repo->disabled && !(flags & SEARCH_DISABLED_REPOS))
    return;
  memset(&md, 0, sizeof(md));
  md.pool = repo->pool;
  md.flags = flags;
  md.callback = callback;
  md.callback_data = cbdata;
  if (match)
    datamatcher_init(&md.matcher, match, flags);
  repo_search_md(repo, p, keyname, &md);
  if (match)
    datamatcher_free(&md.matcher);
}

const char *
repo_lookup_str(Repo *repo, Id entry, Id keyname)
{
  Pool *pool = repo->pool;
  Repodata *data;
  int i, j;

  switch(keyname)
    {
    case SOLVABLE_NAME:
      return id2str(pool, pool->solvables[entry].name);
    case SOLVABLE_ARCH:
      return id2str(pool, pool->solvables[entry].arch);
    case SOLVABLE_EVR:
      return id2str(pool, pool->solvables[entry].evr);
    case SOLVABLE_VENDOR:
      return id2str(pool, pool->solvables[entry].vendor);
    }
  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    {
      if (entry != SOLVID_META && (entry < data->start || entry >= data->end))
        continue;
      if (!repodata_precheck_keyname(data, keyname))
        continue;
      for (j = 1; j < data->nkeys; j++)
        {
          if (data->keys[j].name == keyname && (data->keys[j].type == REPOKEY_TYPE_ID || data->keys[j].type == REPOKEY_TYPE_CONSTANTID || data->keys[j].type == REPOKEY_TYPE_STR))
            return repodata_lookup_str(data, entry, keyname);
        }
    }
  return 0;
}


unsigned int
repo_lookup_num(Repo *repo, Id entry, Id keyname, unsigned int notfound)
{
  Repodata *data;
  int i, j;

  if (keyname == RPM_RPMDBID)
    {
      if (repo->rpmdbid && entry >= repo->start && entry < repo->end)
        return repo->rpmdbid[entry - repo->start];
      return notfound;
    }
  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    {
      if (entry != SOLVID_META && (entry < data->start || entry >= data->end))
        continue;
      if (!repodata_precheck_keyname(data, keyname))
        continue;
      for (j = 1; j < data->nkeys; j++)
        {
          if (data->keys[j].name == keyname
              && (data->keys[j].type == REPOKEY_TYPE_U32
                  || data->keys[j].type == REPOKEY_TYPE_NUM
                  || data->keys[j].type == REPOKEY_TYPE_CONSTANT))
            {
              unsigned value;
              if (repodata_lookup_num(data, entry, keyname, &value))
                return value;
            }
        }
    }
  return notfound;
}

Id
repo_lookup_id(Repo *repo, Id entry, Id keyname)
{
  Repodata *data;
  int i, j;

  switch(keyname)
    {   
    case SOLVABLE_NAME:
      return repo->pool->solvables[entry].name;
    case SOLVABLE_ARCH:
      return repo->pool->solvables[entry].arch;
    case SOLVABLE_EVR:
      return repo->pool->solvables[entry].evr;
    case SOLVABLE_VENDOR:
      return repo->pool->solvables[entry].vendor;
    }   
  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    {   
      if (entry != SOLVID_META && (entry < data->start || entry >= data->end))
        continue;
      if (!repodata_precheck_keyname(data, keyname))
        continue;
      for (j = 1; j < data->nkeys; j++)
        {
          if (data->keys[j].name == keyname && (data->keys[j].type == REPOKEY_TYPE_ID || data->keys[j].type == REPOKEY_TYPE_CONSTANTID))
            {
              Id id = repodata_lookup_id(data, entry, keyname); 
              if (id)
                return data->localpool ? repodata_globalize_id(data, id, 1) : id; 
            }
        }
    }   
  return 0;
}

const unsigned char *
repo_lookup_bin_checksum(Repo *repo, Id entry, Id keyname, Id *typep)
{
  Repodata *data;
  int i, j;
  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    {
      if (entry != SOLVID_META && (entry < data->start || entry >= data->end))
        continue;
      if (!repodata_precheck_keyname(data, keyname))
        continue;
      for (j = 1; j < data->nkeys; j++)
        {
          if (data->keys[j].name == keyname)
            {
              const unsigned char *chk = repodata_lookup_bin_checksum(data, entry, keyname, typep);
              if (chk)
                return chk;
            }
        }
    }
  *typep = 0;
  return 0;
}

int
repo_lookup_void(Repo *repo, Id entry, Id keyname)
{
  Repodata *data;
  int i, j;
  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    {
      if (entry != SOLVID_META && (entry < data->start || entry >= data->end))
        continue;
      if (!repodata_precheck_keyname(data, keyname))
        continue;
      for (j = 1; j < data->nkeys; j++)
        {
          if (data->keys[j].name == keyname
              && (data->keys[j].type == REPOKEY_TYPE_VOID))
            {
              if (repodata_lookup_void(data, entry, keyname))
                return 1;
            }
        }
    }
  return 0;
}

/***********************************************************************/

Repodata *
repo_add_repodata(Repo *repo, int flags)
{
  int i;
  if ((flags & REPO_USE_LOADING) != 0)
    {
      for (i = repo->nrepodata - 1; i >= 0; i--)
        if (repo->repodata[i].state == REPODATA_LOADING)
          {
            Repodata *data = repo->repodata + i;
            /* re-init */
            /* hack: we mis-use REPO_REUSE_REPODATA here */
            if (!(flags & REPO_REUSE_REPODATA))
              {
                repodata_freedata(data);
                repodata_initdata(data, repo, (flags & REPO_LOCALPOOL) ? 1 : 0);
              }
            return data;
          }
      return 0; /* must not create a new repodata! */
    }
  if ((flags & REPO_REUSE_REPODATA) != 0)
    {
      for (i = repo->nrepodata - 1; i >= 0; i--)
        if (repo->repodata[i].state != REPODATA_STUB)
          return repo->repodata + i;
    }
  return repodata_create(repo, (flags & REPO_LOCALPOOL) ? 1 : 0);
}

Repodata *
repo_last_repodata(Repo *repo)
{
  int i;
  for (i = repo->nrepodata - 1; i >= 0; i--)
    if (repo->repodata[i].state != REPODATA_STUB)
      return repo->repodata + i;
  return repo_add_repodata(repo, 0);
}

void
repo_set_id(Repo *repo, Id p, Id keyname, Id id)
{
  Repodata *data = repo_last_repodata(repo);
  repodata_set_id(data, p, keyname, id);
}

void
repo_set_num(Repo *repo, Id p, Id keyname, Id num)
{
  Repodata *data = repo_last_repodata(repo);
  repodata_set_num(data, p, keyname, num);
}

void
repo_set_str(Repo *repo, Id p, Id keyname, const char *str)
{
  Repodata *data = repo_last_repodata(repo);
  repodata_set_str(data, p, keyname, str);
}

void
repo_set_poolstr(Repo *repo, Id p, Id keyname, const char *str)
{
  Repodata *data = repo_last_repodata(repo);
  repodata_set_poolstr(data, p, keyname, str);
}

void
repo_add_poolstr_array(Repo *repo, Id p, Id keyname, const char *str)
{
  Repodata *data = repo_last_repodata(repo);
  repodata_add_poolstr_array(data, p, keyname, str);
}

void
repo_internalize(Repo *repo)
{
  int i;
  Repodata *data;

  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    if (data->attrs || data->xattrs)
      repodata_internalize(data);
}

void
repo_disable_paging(Repo *repo)
{
  int i;
  Repodata *data;

  for (i = 0, data = repo->repodata; i < repo->nrepodata; i++, data++)
    repodata_disable_paging(data);
}
// EOF
/*
vim:cinoptions={.5s,g0,p5,t0,(0,^-0.5s,n-0.5s:tw=78:cindent:sw=4:
*/