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-rw-r--r--lib/libalpm/db.c328
1 files changed, 267 insertions, 61 deletions
diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c
index c8a91a2b..02f82823 100644
--- a/lib/libalpm/db.c
+++ b/lib/libalpm/db.c
@@ -1,7 +1,7 @@
/*
* db.c
*
- * Copyright (c) 2006-2010 Pacman Development Team <pacman-dev@archlinux.org>
+ * Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
@@ -29,7 +29,6 @@
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
-#include <dirent.h>
#include <regex.h>
#include <time.h>
@@ -39,8 +38,9 @@
#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
@@ -64,23 +64,8 @@ pmdb_t SYMEXPORT *alpm_db_register_sync(const char *treename)
return(_alpm_db_register_sync(treename));
}
-/** Register the local package database.
- * @return a pmdb_t* representing the local database, or NULL on error
- */
-pmdb_t SYMEXPORT *alpm_db_register_local(void)
-{
- ALPM_LOG_FUNC;
-
- /* Sanity checks */
- ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, NULL));
- /* Do not register a database if a transaction is on-going */
- ASSERT(handle->trans == NULL, RET_ERR(PM_ERR_TRANS_NOT_NULL, NULL));
-
- return(_alpm_db_register_local());
-}
-
/* 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 +81,7 @@ 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 +91,16 @@ 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 +143,7 @@ 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);
}
@@ -168,7 +157,7 @@ int SYMEXPORT alpm_db_setserver(pmdb_t *db, const char *url)
alpm_list_t *i;
int found = 0;
char *newurl;
- int len = 0;
+ size_t len = 0;
ALPM_LOG_FUNC;
@@ -260,9 +249,9 @@ pmpkg_t SYMEXPORT *alpm_db_get_pkg(pmdb_t *db, const char *name)
/** Get the package cache of a package database
* @param db pointer to the package database to get the package from
- * @return the list of packages on success, NULL on error
+ * @return the hash of packages on success, NULL on error
*/
-alpm_list_t SYMEXPORT *alpm_db_get_pkgcache(pmdb_t *db)
+pmpkghash_t SYMEXPORT *alpm_db_get_pkgcache(pmdb_t *db)
{
ALPM_LOG_FUNC;
@@ -273,6 +262,21 @@ alpm_list_t SYMEXPORT *alpm_db_get_pkgcache(pmdb_t *db)
return(_alpm_db_get_pkgcache(db));
}
+/** Get the package cache of a package database
+ * @param db pointer to the package database to get the package from
+ * @return the list of packages on success, NULL on error
+ */
+alpm_list_t SYMEXPORT *alpm_db_get_pkgcache_list(pmdb_t *db)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ return(_alpm_db_get_pkgcache_list(db));
+}
+
/** Get a group entry from a package database
* @param db pointer to the package database to get the group from
* @param name of the group
@@ -321,7 +325,7 @@ 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
@@ -341,18 +345,14 @@ 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)) {
- return(-1);
- }
- if(pkg->reason == reason) {
+ if(alpm_pkg_get_reason(pkg) == reason) {
/* we are done */
return(0);
}
/* 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 +361,7 @@ 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 +409,10 @@ 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);
@@ -432,7 +432,7 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles)
const alpm_list_t *i, *j, *k;
alpm_list_t *ret = NULL;
/* copy the pkgcache- we will free the list var after each needle */
- alpm_list_t *list = alpm_list_copy(_alpm_db_get_pkgcache(db));
+ alpm_list_t *list = alpm_list_copy(_alpm_db_get_pkgcache_list(db));
ALPM_LOG_FUNC;
@@ -503,52 +503,258 @@ 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(_alpm_db_get_pkgcache_list(db),
+ (alpm_list_fn_free)_alpm_pkg_free);
+ _alpm_pkghash_free(db->pkgcache);
+ db->pkgcache_loaded = 0;
+
+ _alpm_db_free_grpcache(db);
+}
+
+pmpkghash_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)
+alpm_list_t *_alpm_db_get_pkgcache_list(pmdb_t *db)
{
- pmdb_t *db;
- alpm_list_t *i;
+ ALPM_LOG_FUNC;
+
+ pmpkghash_t *hash = _alpm_db_get_pkgcache(db);
+
+ if(hash == NULL) {
+ return(NULL);
+ }
+
+ return(hash->list);
+}
+
+/* "duplicate" pkg then add it to pkgcache */
+int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg)
+{
+ 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_pkghash_add_sorted(db->pkgcache, newpkg);
+
+ _alpm_db_free_grpcache(db);
+
+ return(0);
+}
+
+int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg)
+{
+ pmpkg_t *data = NULL;
+
+ 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_pkghash_remove(db->pkgcache, pkg, &data);
+ 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);
+ }
+
+ pmpkghash_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_pkghash_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_list(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: */
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-18 14:12:46 +0100