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-rw-r--r--lib/libalpm/db.c594
1 files changed, 520 insertions, 74 deletions
diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c
index 148c32dc..b772adde 100644
--- a/lib/libalpm/db.c
+++ b/lib/libalpm/db.c
@@ -1,12 +1,12 @@
/*
* db.c
- *
+ *
* 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>
* Copyright (c) 2006 by David Kimpe <dnaku@frugalware.org>
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -19,7 +19,7 @@
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
@@ -30,17 +30,11 @@
#include <stdlib.h>
#include <errno.h>
#include <string.h>
+#include <stdint.h> /* uintmax_t */
#include <sys/stat.h>
-#if defined(__APPLE__) || defined(__OpenBSD__)
-#include <sys/syslimits.h>
-#include <sys/stat.h>
-#endif
#include <dirent.h>
-#include <libintl.h>
#include <regex.h>
-#ifdef CYGWIN
-#include <limits.h> /* PATH_MAX */
-#endif
+#include <time.h>
/* libalpm */
#include "db.h"
@@ -53,38 +47,425 @@
#include "cache.h"
#include "alpm.h"
-pmdb_t *_alpm_db_new(const char *root, const char *dbpath, const char *treename)
+/** \addtogroup alpm_databases Database Functions
+ * @brief Functions to query and manipulate the database of libalpm
+ * @{
+ */
+
+/** Register a sync database of packages.
+ * @param treename the name of the sync repository
+ * @return a pmdb_t* on success (the value), NULL on error
+ */
+pmdb_t SYMEXPORT *alpm_db_register_sync(const char *treename)
{
- pmdb_t *db;
+ ALPM_LOG_FUNC;
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, NULL));
+ ASSERT(treename != NULL && strlen(treename) != 0, RET_ERR(PM_ERR_WRONG_ARGS, 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_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;
- db = calloc(1, sizeof(pmdb_t));
+ /* 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)
+{
if(db == NULL) {
- _alpm_log(PM_LOG_ERROR, _("malloc failed: could not allocate %d bytes"),
- sizeof(pmdb_t));
- RET_ERR(PM_ERR_MEMORY, NULL);
+ return;
+ }
+
+ _alpm_log(PM_LOG_DEBUG, "closing database '%s'\n", db->treename);
+ _alpm_db_close(db);
+
+ _alpm_log(PM_LOG_DEBUG, "unregistering database '%s'\n", db->treename);
+ _alpm_db_free(db);
+}
+
+/** Unregister all package databases
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_db_unregister_all(void)
+{
+ alpm_list_t *i;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+ /* Do not unregister a database if a transaction is on-going */
+ 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;
+
+ /* and also sync ones */
+ for(i = handle->dbs_sync; i; i = i->next) {
+ pmdb_t *db = i->data;
+ _alpm_db_unregister(db);
+ i->data = NULL;
+ }
+ FREELIST(handle->dbs_sync);
+ return(0);
+}
+
+/** Unregister a package database
+ * @param db pointer to the package database to unregister
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_db_unregister(pmdb_t *db)
+{
+ int found = 0;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+ ASSERT(db != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
+ /* Do not unregister a database if a transaction is on-going */
+ ASSERT(handle->trans == NULL, RET_ERR(PM_ERR_TRANS_NOT_NULL, -1));
+
+ if(db == handle->db_local) {
+ handle->db_local = NULL;
+ found = 1;
+ } else {
+ /* Warning : this function shouldn't be used to unregister all sync
+ * databases by walking through the list returned by
+ * alpm_option_get_syncdbs, because the db is removed from that list here.
+ */
+ void *data;
+ handle->dbs_sync = alpm_list_remove(handle->dbs_sync,
+ db, _alpm_db_cmp, &data);
+ if(data) {
+ found = 1;
+ }
+ }
+
+ if(!found) {
+ RET_ERR(PM_ERR_DB_NOT_FOUND, -1);
+ }
+
+ _alpm_db_unregister(db);
+ return(0);
+}
+
+/** Set the serverlist of a database.
+ * @param db database pointer
+ * @param url url of the server
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_db_setserver(pmdb_t *db, const char *url)
+{
+ alpm_list_t *i;
+ int found = 0;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
+
+ for(i = handle->dbs_sync; i && !found; i = i->next) {
+ pmdb_t *sdb = i->data;
+ if(strcmp(db->treename, sdb->treename) == 0) {
+ found = 1;
+ }
+ }
+ if(!found) {
+ RET_ERR(PM_ERR_DB_NOT_FOUND, -1);
+ }
+
+ if(url && strlen(url)) {
+ pmserver_t *server;
+ if((server = _alpm_server_new(url)) == NULL) {
+ /* pm_errno is set by _alpm_server_new */
+ return(-1);
+ }
+ db->servers = alpm_list_add(db->servers, server);
+ _alpm_log(PM_LOG_DEBUG, "adding new server to database '%s': protocol '%s', server '%s', path '%s'\n",
+ db->treename, server->s_url->scheme, server->s_url->host, server->s_url->doc);
+ } else {
+ FREELIST(db->servers);
+ _alpm_log(PM_LOG_DEBUG, "serverlist flushed for '%s'\n", db->treename);
+ }
+
+ return(0);
+}
+
+/** Update a package database
+ * @param force if true, then forces the update, otherwise update only in case
+ * the database isn't up to date
+ * @param db pointer to the package database to update
+ * @return 0 on success, > 0 on error (pm_errno is set accordingly), < 0 if up
+ * to date
+ */
+int SYMEXPORT alpm_db_update(int force, pmdb_t *db)
+{
+ alpm_list_t *lp;
+ char path[PATH_MAX];
+ alpm_list_t *files = NULL;
+ time_t newmtime = 0, lastupdate = 0;
+ const char *dbpath;
+ int ret;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+ ASSERT(db != NULL && db != handle->db_local, RET_ERR(PM_ERR_WRONG_ARGS, -1));
+ /* Verify we are in a transaction. This is done _mainly_ because we need a DB
+ * lock - if we update without a db lock, we may kludge some other pacman
+ * process that _has_ a lock.
+ */
+ ASSERT(handle->trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(handle->trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
+ ASSERT(handle->trans->type == PM_TRANS_TYPE_SYNC, RET_ERR(PM_ERR_TRANS_TYPE, -1));
+
+ if(!alpm_list_find_ptr(handle->dbs_sync, db)) {
+ RET_ERR(PM_ERR_DB_NOT_FOUND, -1);
}
- db->path = calloc(1, strlen(root)+strlen(dbpath)+strlen(treename)+2);
- if(db->path == NULL) {
- _alpm_log(PM_LOG_ERROR, _("malloc failed: could not allocate %d bytes"),
- strlen(root)+strlen(dbpath)+strlen(treename)+2);
- FREE(db);
- RET_ERR(PM_ERR_MEMORY, NULL);
+ if(!force) {
+ /* get the lastupdate time */
+ lastupdate = _alpm_db_getlastupdate(db);
+ if(lastupdate == 0) {
+ _alpm_log(PM_LOG_DEBUG, "failed to get lastupdate time for %s\n",
+ db->treename);
+ }
}
- sprintf(db->path, "%s%s%s/", root, dbpath, treename);
- STRNCPY(db->treename, treename, PATH_MAX);
+ /* build a one-element list */
+ snprintf(path, PATH_MAX, "%s" DBEXT, db->treename);
+ files = alpm_list_add(files, strdup(path));
+
+ dbpath = alpm_option_get_dbpath();
+
+ ret = _alpm_downloadfiles_forreal(db->servers, dbpath, files, lastupdate,
+ &newmtime, NULL, 0);
+ FREELIST(files);
+ if(ret == 1) {
+ /* mtimes match, do nothing */
+ pm_errno = 0;
+ return(1);
+ } else if(ret == -1) {
+ /* we use downloadLastErrString and downloadLastErrCode here, error returns from
+ * libdownload */
+ _alpm_log(PM_LOG_DEBUG, "failed to sync db: %s [%d]\n",
+ downloadLastErrString, downloadLastErrCode);
+ RET_ERR(PM_ERR_DB_SYNC, -1);
+ } else {
+ if(newmtime != 0) {
+ _alpm_log(PM_LOG_DEBUG, "sync: new mtime for %s: %ju\n",
+ db->treename, (uintmax_t)newmtime);
+ _alpm_db_setlastupdate(db, newmtime);
+ }
+ snprintf(path, PATH_MAX, "%s%s" DBEXT, dbpath, db->treename);
+
+ /* remove the old dir */
+ _alpm_log(PM_LOG_DEBUG, "flushing database %s\n", db->path);
+ for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) {
+ pmpkg_t *pkg = lp->data;
+ if(pkg && _alpm_db_remove(db, pkg) == -1) {
+ _alpm_log(PM_LOG_ERROR, _("could not remove database entry %s%s\n"), db->treename,
+ alpm_pkg_get_name(pkg));
+ RET_ERR(PM_ERR_DB_REMOVE, -1);
+ }
+ }
+
+ /* Cache needs to be rebuild */
+ _alpm_db_free_pkgcache(db);
+
+ /* uncompress the sync database */
+ if(_alpm_db_install(db, path) == -1) {
+ return -1;
+ }
+ }
+
+ return(0);
+}
+
+/** Get the name of a package database
+ * @param db pointer to the package database
+ * @return the name of the package database, NULL on error
+ */
+const char SYMEXPORT *alpm_db_get_name(const pmdb_t *db)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ return db->treename;
+}
+
+/** Get a download URL for the package database
+ * @param db pointer to the package database
+ * @return a fully-specified download URL, NULL on error
+ */
+const char SYMEXPORT *alpm_db_get_url(const pmdb_t *db)
+{
+ char path[PATH_MAX];
+ pmserver_t *s;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ s = (pmserver_t*)db->servers->data;
+
+ snprintf(path, PATH_MAX, "%s://%s%s", s->s_url->scheme, s->s_url->host, s->s_url->doc);
+ return strdup(path);
+}
+
+
+/** Get a package entry from a package database
+ * @param db pointer to the package database to get the package from
+ * @param name of the package
+ * @return the package entry on success, NULL on error
+ */
+pmpkg_t SYMEXPORT *alpm_db_get_pkg(pmdb_t *db, const char *name)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+ ASSERT(name != NULL && strlen(name) != 0, return(NULL));
+
+ return(_alpm_db_get_pkgfromcache(db, 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
+ */
+alpm_list_t SYMEXPORT *alpm_db_getpkgcache(pmdb_t *db)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ return(_alpm_db_get_pkgcache(db));
+}
+
+/** Get the list of packages that a package provides
+ * @param db pointer to the package database to get the package from
+ * @param name name of the package
+ * @return the list of packages on success, NULL on error
+ */
+alpm_list_t SYMEXPORT *alpm_db_whatprovides(pmdb_t *db, const char *name)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+ ASSERT(name != NULL && strlen(name) != 0, return(NULL));
+
+ return(_alpm_db_whatprovides(db, name));
+}
+
+/** 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
+ * @return the groups entry on success, NULL on error
+ */
+pmgrp_t SYMEXPORT *alpm_db_readgrp(pmdb_t *db, const char *name)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+ ASSERT(name != NULL && strlen(name) != 0, return(NULL));
+
+ return(_alpm_db_get_grpfromcache(db, name));
+}
+
+/** Get the group cache of a package database
+ * @param db pointer to the package database to get the group from
+ * @return the list of groups on success, NULL on error
+ */
+alpm_list_t SYMEXPORT *alpm_db_getgrpcache(pmdb_t *db)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ return(_alpm_db_get_grpcache(db));
+}
+
+/** Searches a database
+ * @param db pointer to the package database to search in
+ * @param needles the list of strings to search for
+ * @return the list of packages on success, NULL on error
+ */
+alpm_list_t SYMEXPORT *alpm_db_search(pmdb_t *db, const alpm_list_t* needles)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ return(_alpm_db_search(db, needles));
+}
+
+/** @} */
+
+pmdb_t *_alpm_db_new(const char *dbpath, const char *treename)
+{
+ pmdb_t *db;
+ const size_t pathsize = strlen(dbpath) + strlen(treename) + 2;
+
+ ALPM_LOG_FUNC;
+
+ CALLOC(db, 1, sizeof(pmdb_t), RET_ERR(PM_ERR_MEMORY, NULL));
+ CALLOC(db->path, 1, pathsize, RET_ERR(PM_ERR_MEMORY, NULL));
+
+ sprintf(db->path, "%s%s/", dbpath, treename);
+
+ strncpy(db->treename, treename, PATH_MAX);
return(db);
}
void _alpm_db_free(pmdb_t *db)
{
+ alpm_list_t *tmp;
+
ALPM_LOG_FUNC;
- _FREELIST(db->servers, _alpm_server_free);
+ /* cleanup pkgcache */
+ _alpm_db_free_pkgcache(db);
+ /* cleanup server list */
+ for(tmp = db->servers; tmp; tmp = alpm_list_next(tmp)) {
+ _alpm_server_free(tmp->data);
+ }
+ alpm_list_free(db->servers);
FREE(db->path);
FREE(db);
@@ -97,9 +478,10 @@ int _alpm_db_cmp(const void *db1, const void *db2)
return(strcmp(((pmdb_t *)db1)->treename, ((pmdb_t *)db2)->treename));
}
-alpm_list_t *_alpm_db_search(pmdb_t *db, alpm_list_t *needles)
+alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles)
{
- alpm_list_t *i, *j, *k, *ret = NULL;
+ const alpm_list_t *i, *j, *k;
+ alpm_list_t *ret = NULL;
ALPM_LOG_FUNC;
@@ -111,8 +493,8 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, alpm_list_t *needles)
continue;
}
targ = i->data;
- _alpm_log(PM_LOG_DEBUG, "searching for target '%s'", targ);
-
+ _alpm_log(PM_LOG_DEBUG, "searching for target '%s'\n", targ);
+
if(regcomp(&reg, targ, REG_EXTENDED | REG_NOSUB | REG_ICASE | REG_NEWLINE) != 0) {
RET_ERR(PM_ERR_INVALID_REGEX, NULL);
}
@@ -125,6 +507,10 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, alpm_list_t *needles)
if (regexec(&reg, alpm_pkg_get_name(pkg), 0, 0, 0) == 0) {
matched = alpm_pkg_get_name(pkg);
}
+ /* check plain text name */
+ else if (strstr(alpm_pkg_get_name(pkg), targ)) {
+ matched = alpm_pkg_get_name(pkg);
+ }
/* check desc */
else if (regexec(&reg, alpm_pkg_get_desc(pkg), 0, 0, 0) == 0) {
matched = alpm_pkg_get_desc(pkg);
@@ -142,7 +528,7 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, alpm_list_t *needles)
}
if(matched != NULL) {
- _alpm_log(PM_LOG_DEBUG, " search target '%s' matched '%s'",
+ _alpm_log(PM_LOG_DEBUG, " search target '%s' matched '%s'\n",
targ, matched);
ret = alpm_list_add(ret, pkg);
}
@@ -154,90 +540,150 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, alpm_list_t *needles)
return(ret);
}
-pmdb_t *_alpm_db_register(const char *treename, alpm_cb_db_register callback)
+pmdb_t *_alpm_db_register_local(void)
{
struct stat buf;
pmdb_t *db;
+ const char *dbpath;
char path[PATH_MAX];
ALPM_LOG_FUNC;
- if(strcmp(treename, "local") == 0) {
- if(handle->db_local != NULL) {
- _alpm_log(PM_LOG_WARNING, _("attempt to re-register the 'local' DB"));
- RET_ERR(PM_ERR_DB_NOT_NULL, NULL);
- }
- } else {
- alpm_list_t *i;
- 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"), sdb->treename);
- return sdb;
- }
- }
+ 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);
}
-
- _alpm_log(PM_LOG_DEBUG, _("registering database '%s'"), treename);
+
+ _alpm_log(PM_LOG_DEBUG, "registering local database\n");
/* make sure the database directory exists */
- snprintf(path, PATH_MAX, "%s%s/%s", handle->root, handle->dbpath, treename);
+ dbpath = alpm_option_get_dbpath();
+ if(!dbpath) {
+ _alpm_log(PM_LOG_ERROR, _("database path is undefined\n"));
+ RET_ERR(PM_ERR_DB_OPEN, NULL);
+ }
+ snprintf(path, PATH_MAX, "%slocal", dbpath);
+ /* TODO this is rediculous, we try to do this even if we can't */
if(stat(path, &buf) != 0 || !S_ISDIR(buf.st_mode)) {
- _alpm_log(PM_LOG_DEBUG, _("database directory '%s' does not exist, creating it"), path);
+ _alpm_log(PM_LOG_DEBUG, "database dir '%s' does not exist, creating it\n",
+ path);
if(_alpm_makepath(path) != 0) {
RET_ERR(PM_ERR_SYSTEM, NULL);
}
}
- db = _alpm_db_new(handle->root, handle->dbpath, treename);
+ db = _alpm_db_new(dbpath, "local");
if(db == NULL) {
RET_ERR(PM_ERR_DB_CREATE, NULL);
}
- _alpm_log(PM_LOG_DEBUG, _("opening database '%s'"), db->treename);
+ _alpm_log(PM_LOG_DEBUG, "opening database '%s'\n", db->treename);
if(_alpm_db_open(db) == -1) {
_alpm_db_free(db);
RET_ERR(PM_ERR_DB_OPEN, NULL);
}
- /* Only call callback on NEW registration. */
- if(callback) callback(treename, db);
+ handle->db_local = db;
+ return(db);
+}
- if(strcmp(treename, "local") == 0) {
- handle->db_local = db;
- } else {
- handle->dbs_sync = alpm_list_add(handle->dbs_sync, db);
+pmdb_t *_alpm_db_register_sync(const char *treename)
+{
+ struct stat buf;
+ pmdb_t *db;
+ const char *dbpath;
+ char path[PATH_MAX];
+ alpm_list_t *i;
+
+ 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;
+ }
+ }
+
+ _alpm_log(PM_LOG_DEBUG, "registering sync database '%s'\n", treename);
+
+ /* make sure the database directory exists */
+ dbpath = alpm_option_get_dbpath();
+ if(!dbpath) {
+ _alpm_log(PM_LOG_ERROR, _("database path is undefined\n"));
+ RET_ERR(PM_ERR_DB_OPEN, NULL);
+ }
+ /* all sync DBs now reside in the sync/ subdir of the dbpath */
+ snprintf(path, PATH_MAX, "%ssync/%s", dbpath, treename);
+ /* TODO this is rediculous, we try to do this even if we can't */
+ if(stat(path, &buf) != 0 || !S_ISDIR(buf.st_mode)) {
+ _alpm_log(PM_LOG_DEBUG, "database dir '%s' does not exist, creating it\n",
+ path);
+ if(_alpm_makepath(path) != 0) {
+ RET_ERR(PM_ERR_SYSTEM, NULL);
+ }
+ }
+
+ /* Ensure the db gets the real path. */
+ path[0] = '\0';
+ snprintf(path, PATH_MAX, "%ssync/", dbpath);
+
+ db = _alpm_db_new(path, treename);
+ if(db == NULL) {
+ RET_ERR(PM_ERR_DB_CREATE, NULL);
+ }
+
+ _alpm_log(PM_LOG_DEBUG, "opening database '%s'\n", db->treename);
+ if(_alpm_db_open(db) == -1) {
+ _alpm_db_free(db);
+ RET_ERR(PM_ERR_DB_OPEN, NULL);
}
+ handle->dbs_sync = alpm_list_add(handle->dbs_sync, db);
return(db);
}
-const char SYMEXPORT *alpm_db_get_name(pmdb_t *db)
+/* helper function for alpm_list_find and _alpm_db_whatprovides
+ *
+ * @return "provision.name" == needle (as string)
+ */
+int _alpm_prov_cmp(const void *provision, const void *needle)
{
- ALPM_LOG_FUNC;
-
- /* Sanity checks */
- ASSERT(handle != NULL, return(NULL));
- ASSERT(db != NULL, return(NULL));
+ char *tmpptr;
+ char *provname = strdup(provision);
+ int retval = 0;
+ tmpptr = strchr(provname, ' ');
- return db->treename;
+ if(tmpptr != NULL) { /* provision-version */
+ *tmpptr='\0';
+ }
+ retval = strcmp(provname, needle);
+ free(provname);
+ return(retval);
}
-const char *alpm_db_get_url(pmdb_t *db)
+/* return a alpm_list_t of packages in "db" that provide "package"
+ */
+alpm_list_t *_alpm_db_whatprovides(pmdb_t *db, const char *package)
{
- char path[PATH_MAX];
- pmserver_t *s;
+ alpm_list_t *pkgs = NULL;
+ alpm_list_t *lp;
ALPM_LOG_FUNC;
- /* Sanity checks */
- ASSERT(handle != NULL, return(NULL));
- ASSERT(db != NULL, return(NULL));
+ if(db == NULL || package == NULL || strlen(package) == 0) {
+ return(NULL);
+ }
- s = (pmserver_t*)db->servers->data;
+ for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) {
+ pmpkg_t *info = lp->data;
- snprintf(path, PATH_MAX, "%s://%s%s", s->s_url->scheme, s->s_url->host, s->s_url->doc);
- return strdup(path);
+ if(alpm_list_find(alpm_pkg_get_provides(info), (const void *)package, _alpm_prov_cmp)) {
+ pkgs = alpm_list_add(pkgs, info);
+ }
+ }
+
+ return(pkgs);
}
/* vim: set ts=2 sw=2 noet: */