| index : pacman | |
| Archlinux32 fork of pacman | gitolite user |
| summaryrefslogtreecommitdiff |
| -rw-r--r-- | lib/libalpm/db.c | 271 |
diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c index c8a91a2b..79d20d49 100644 --- a/lib/libalpm/db.c +++ b/lib/libalpm/db.c @@ -39,8 +39,9 @@ #include "log.h" #include "util.h" #include "handle.h" -#include "cache.h" #include "alpm.h" +#include "package.h" +#include "group.h" /** \addtogroup alpm_databases Database Functions * @brief Functions to query and manipulate the database of libalpm @@ -80,7 +81,7 @@ pmdb_t SYMEXPORT *alpm_db_register_local(void) } /* Helper function for alpm_db_unregister{_all} */ -static void _alpm_db_unregister(pmdb_t *db) +void _alpm_db_unregister(pmdb_t *db) { if(db == NULL) { return; @@ -96,6 +97,7 @@ static void _alpm_db_unregister(pmdb_t *db) int SYMEXPORT alpm_db_unregister_all(void) { alpm_list_t *i; + pmdb_t *db; ALPM_LOG_FUNC; @@ -105,13 +107,16 @@ int SYMEXPORT alpm_db_unregister_all(void) ASSERT(handle->trans == NULL, RET_ERR(PM_ERR_TRANS_NOT_NULL, -1)); /* close local database */ - _alpm_db_unregister(handle->db_local); - handle->db_local = NULL; + db = handle->db_local; + if(db) { + db->ops->unregister(db); + handle->db_local = NULL; + } /* and also sync ones */ for(i = handle->dbs_sync; i; i = i->next) { - pmdb_t *db = i->data; - _alpm_db_unregister(db); + db = i->data; + db->ops->unregister(db); i->data = NULL; } FREELIST(handle->dbs_sync); @@ -154,7 +159,7 @@ int SYMEXPORT alpm_db_unregister(pmdb_t *db) RET_ERR(PM_ERR_DB_NOT_FOUND, -1); } - _alpm_db_unregister(db); + db->ops->unregister(db); return(0); } @@ -321,7 +326,7 @@ alpm_list_t SYMEXPORT *alpm_db_search(pmdb_t *db, const alpm_list_t* needles) return(_alpm_db_search(db, needles)); } -/* Set install reason for a package in db +/** Set install reason for a package in db * @param db pointer to the package database * @param name the name of the package * @param reason the new install reason @@ -342,7 +347,7 @@ int SYMEXPORT alpm_db_set_pkgreason(pmdb_t *db, const char *name, pmpkgreason_t _alpm_log(PM_LOG_DEBUG, "setting install reason %u for %s/%s\n", reason, db->treename, name); /* read DESC */ - if(_alpm_db_read(db, pkg, INFRQ_DESC)) { + if(_alpm_local_db_read(db, pkg, INFRQ_DESC)) { return(-1); } if(pkg->reason == reason) { @@ -352,7 +357,7 @@ int SYMEXPORT alpm_db_set_pkgreason(pmdb_t *db, const char *name, pmpkgreason_t /* set reason (in pkgcache) */ pkg->reason = reason; /* write DESC */ - if(_alpm_db_write(db, pkg, INFRQ_DESC)) { + if(_alpm_local_db_write(db, pkg, INFRQ_DESC)) { return(-1); } @@ -361,7 +366,7 @@ int SYMEXPORT alpm_db_set_pkgreason(pmdb_t *db, const char *name, pmpkgreason_t /** @} */ -static pmdb_t *_alpm_db_new(const char *treename, int is_local) +pmdb_t *_alpm_db_new(const char *treename, int is_local) { pmdb_t *db; @@ -409,10 +414,10 @@ const char *_alpm_db_path(pmdb_t *db) CALLOC(db->_path, 1, pathsize, RET_ERR(PM_ERR_MEMORY, NULL)); sprintf(db->_path, "%s%s/", dbpath, db->treename); } else { - pathsize = strlen(dbpath) + 5 + strlen(db->treename) + 2; + pathsize = strlen(dbpath) + 5 + strlen(db->treename) + 4; CALLOC(db->_path, 1, pathsize, RET_ERR(PM_ERR_MEMORY, NULL)); /* all sync DBs now reside in the sync/ subdir of the dbpath */ - sprintf(db->_path, "%ssync/%s/", dbpath, db->treename); + sprintf(db->_path, "%ssync/%s.db", dbpath, db->treename); } _alpm_log(PM_LOG_DEBUG, "database path for tree %s set to %s\n", db->treename, db->_path); @@ -503,52 +508,246 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles) return(ret); } -pmdb_t *_alpm_db_register_local(void) +/* Returns a new package cache from db. + * It frees the cache if it already exists. + */ +int _alpm_db_load_pkgcache(pmdb_t *db) { - pmdb_t *db; + ALPM_LOG_FUNC; + + if(db == NULL) { + return(-1); + } + _alpm_db_free_pkgcache(db); + + _alpm_log(PM_LOG_DEBUG, "loading package cache for repository '%s'\n", + db->treename); + if(db->ops->populate(db) == -1) { + _alpm_log(PM_LOG_DEBUG, + "failed to load package cache for repository '%s'\n", db->treename); + return(-1); + } + db->pkgcache_loaded = 1; + return(0); +} + +void _alpm_db_free_pkgcache(pmdb_t *db) +{ ALPM_LOG_FUNC; - if(handle->db_local != NULL) { - _alpm_log(PM_LOG_WARNING, _("attempt to re-register the 'local' DB\n")); - RET_ERR(PM_ERR_DB_NOT_NULL, NULL); + if(db == NULL || !db->pkgcache_loaded) { + return; } - _alpm_log(PM_LOG_DEBUG, "registering local database\n"); + _alpm_log(PM_LOG_DEBUG, "freeing package cache for repository '%s'\n", + db->treename); + + alpm_list_free_inner(db->pkgcache, (alpm_list_fn_free)_alpm_pkg_free); + alpm_list_free(db->pkgcache); + db->pkgcache_loaded = 0; + + _alpm_db_free_grpcache(db); +} + +alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db) +{ + ALPM_LOG_FUNC; - db = _alpm_db_new("local", 1); if(db == NULL) { - RET_ERR(PM_ERR_DB_CREATE, NULL); + return(NULL); } - handle->db_local = db; - return(db); + if(!db->pkgcache_loaded) { + _alpm_db_load_pkgcache(db); + } + + /* hmmm, still NULL ?*/ + if(!db->pkgcache) { + _alpm_log(PM_LOG_DEBUG, "warning: pkgcache is NULL for db '%s'\n", db->treename); + } + + return(db->pkgcache); } -pmdb_t *_alpm_db_register_sync(const char *treename) +/* "duplicate" pkg then add it to pkgcache */ +int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg) { - pmdb_t *db; - alpm_list_t *i; + pmpkg_t *newpkg; ALPM_LOG_FUNC; - for(i = handle->dbs_sync; i; i = i->next) { - pmdb_t *sdb = i->data; - if(strcmp(treename, sdb->treename) == 0) { - _alpm_log(PM_LOG_DEBUG, "attempt to re-register the '%s' database, using existing\n", sdb->treename); - return sdb; + if(db == NULL || !db->pkgcache_loaded || pkg == NULL) { + return(-1); + } + + newpkg = _alpm_pkg_dup(pkg); + if(newpkg == NULL) { + return(-1); + } + + _alpm_log(PM_LOG_DEBUG, "adding entry '%s' in '%s' cache\n", + alpm_pkg_get_name(newpkg), db->treename); + db->pkgcache = alpm_list_add_sorted(db->pkgcache, newpkg, _alpm_pkg_cmp); + + _alpm_db_free_grpcache(db); + + return(0); +} + +int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg) +{ + void *vdata; + pmpkg_t *data; + + ALPM_LOG_FUNC; + + if(db == NULL || !db->pkgcache_loaded || pkg == NULL) { + return(-1); + } + + _alpm_log(PM_LOG_DEBUG, "removing entry '%s' from '%s' cache\n", + alpm_pkg_get_name(pkg), db->treename); + + db->pkgcache = alpm_list_remove(db->pkgcache, pkg, _alpm_pkg_cmp, &vdata); + data = vdata; + if(data == NULL) { + /* package not found */ + _alpm_log(PM_LOG_DEBUG, "cannot remove entry '%s' from '%s' cache: not found\n", + alpm_pkg_get_name(pkg), db->treename); + return(-1); + } + + _alpm_pkg_free(data); + + _alpm_db_free_grpcache(db); + + return(0); +} + +pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target) +{ + ALPM_LOG_FUNC; + + if(db == NULL) { + return(NULL); + } + + alpm_list_t *pkgcache = _alpm_db_get_pkgcache(db); + if(!pkgcache) { + _alpm_log(PM_LOG_DEBUG, "warning: failed to get '%s' from NULL pkgcache\n", + target); + return(NULL); + } + + return(_alpm_pkg_find(pkgcache, target)); +} + +/* Returns a new group cache from db. + */ +int _alpm_db_load_grpcache(pmdb_t *db) +{ + alpm_list_t *lp; + + ALPM_LOG_FUNC; + + if(db == NULL) { + return(-1); + } + + _alpm_log(PM_LOG_DEBUG, "loading group cache for repository '%s'\n", + db->treename); + + for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) { + const alpm_list_t *i; + pmpkg_t *pkg = lp->data; + + for(i = alpm_pkg_get_groups(pkg); i; i = i->next) { + const char *grpname = i->data; + alpm_list_t *j; + pmgrp_t *grp = NULL; + int found = 0; + + /* first look through the group cache for a group with this name */ + for(j = db->grpcache; j; j = j->next) { + grp = j->data; + + if(strcmp(grp->name, grpname) == 0 + && !alpm_list_find_ptr(grp->packages, pkg)) { + grp->packages = alpm_list_add(grp->packages, pkg); + found = 1; + break; + } + } + if(found) { + continue; + } + /* we didn't find the group, so create a new one with this name */ + grp = _alpm_grp_new(grpname); + grp->packages = alpm_list_add(grp->packages, pkg); + db->grpcache = alpm_list_add(db->grpcache, grp); } } - _alpm_log(PM_LOG_DEBUG, "registering sync database '%s'\n", treename); + db->grpcache_loaded = 1; + return(0); +} + +void _alpm_db_free_grpcache(pmdb_t *db) +{ + alpm_list_t *lg; + + ALPM_LOG_FUNC; + + if(db == NULL || !db->grpcache_loaded) { + return; + } + + _alpm_log(PM_LOG_DEBUG, "freeing group cache for repository '%s'\n", + db->treename); + + for(lg = db->grpcache; lg; lg = lg->next) { + _alpm_grp_free(lg->data); + lg->data = NULL; + } + FREELIST(db->grpcache); + db->grpcache_loaded = 0; +} + +alpm_list_t *_alpm_db_get_grpcache(pmdb_t *db) +{ + ALPM_LOG_FUNC; - db = _alpm_db_new(treename, 0); if(db == NULL) { - RET_ERR(PM_ERR_DB_CREATE, NULL); + return(NULL); } - handle->dbs_sync = alpm_list_add(handle->dbs_sync, db); - return(db); + if(!db->grpcache_loaded) { + _alpm_db_load_grpcache(db); + } + + return(db->grpcache); +} + +pmgrp_t *_alpm_db_get_grpfromcache(pmdb_t *db, const char *target) +{ + alpm_list_t *i; + + ALPM_LOG_FUNC; + + if(db == NULL || target == NULL || strlen(target) == 0) { + return(NULL); + } + + for(i = _alpm_db_get_grpcache(db); i; i = i->next) { + pmgrp_t *info = i->data; + + if(strcmp(info->name, target) == 0) { + return(info); + } + } + + return(NULL); } /* vim: set ts=2 sw=2 noet: */ |