]> git.openstreetmap.org Git - nominatim.git/blobdiff - utils/setup.php
reduce limits on high loads and order results correctly
[nominatim.git] / utils / setup.php
index c515fcc82926c7f952ce5fae90178ca7e67dd017..fb83dd0aa9fbc02aad2ed0c07075917f940395a5 100755 (executable)
                array('create-db', '', 0, 1, 0, 0, 'bool', 'Create nominatim db'),
                array('setup-db', '', 0, 1, 0, 0, 'bool', 'Build a blank nominatim db'),
                array('import-data', '', 0, 1, 0, 0, 'bool', 'Import a osm file'),
+               array('osm2pgsql-cache', '', 0, 1, 1, 1, 'int', 'Cache size used by osm2pgsql'),
                array('create-functions', '', 0, 1, 0, 0, 'bool', 'Create functions'),
+               array('enable-diff-updates', '', 0, 1, 0, 0, 'bool', 'Turn on the code required to make diff updates work'),
+               array('enable-debug-statements', '', 0, 1, 0, 0, 'bool', 'Include debug warning statements in pgsql commands'),
+               array('create-minimal-tables', '', 0, 1, 0, 0, 'bool', 'Create minimal main tables'),
                array('create-tables', '', 0, 1, 0, 0, 'bool', 'Create main tables'),
                array('create-partitions', '', 0, 1, 0, 0, 'bool', 'Create required partition tables and triggers'),
+               array('import-wikipedia-articles', '', 0, 1, 0, 0, 'bool', 'Import wikipedia article dump'),
                array('load-data', '', 0, 1, 0, 0, 'bool', 'Copy data to live tables from import table'),
-               array('import-tiger-data', '', 0, 1, 0, 0, 'bool', 'Import tiger data'),
+               array('disable-token-precalc', '', 0, 1, 0, 0, 'bool', 'Disable name precalculation (EXPERT)'),
+               array('import-tiger-data', '', 0, 1, 0, 0, 'bool', 'Import tiger data (not included in \'all\')'),
+               array('calculate-postcodes', '', 0, 1, 0, 0, 'bool', 'Calculate postcode centroids'),
+               array('create-roads', '', 0, 1, 0, 0, 'bool', 'Calculate postcode centroids'),
+               array('osmosis-init', '', 0, 1, 0, 0, 'bool', 'Generate default osmosis configuration'),
+               array('osmosis-init-date', '', 0, 1, 1, 1, 'string', 'Generate default osmosis configuration'),
+               array('index', '', 0, 1, 0, 0, 'bool', 'Index the data'),
+               array('index-noanalyse', '', 0, 1, 0, 0, 'bool', 'Do not perform analyse operations during index (EXPERT)'),
+               array('index-output', '', 0, 1, 1, 1, 'string', 'File to dump index information to'),
+               array('create-search-indices', '', 0, 1, 0, 0, 'bool', 'Create additional indices required for search and update'),
+               array('create-website', '', 0, 1, 1, 1, 'realpath', 'Create symlinks to setup web directory'),
        );
        getCmdOpt($_SERVER['argv'], $aCMDOptions, $aCMDResult, true, true);
 
        $bDidSomething = false;
 
-       // This is a pretty hard core defult - the number of processors in the box - 1
+       // This is a pretty hard core default - the number of processors in the box - 1
        $iInstances = isset($aCMDResult['threads'])?$aCMDResult['threads']:(getProcessorCount()-1);
        if ($iInstances < 1)
        {
                echo "WARNING: resetting threads to $iInstances\n";
        }
 
+       // Assume we can steal all the cache memory in the box (unless told otherwise)
+       $iCacheMemory = (isset($aCMDResult['osm2pgsql-cache'])?$aCMDResult['osm2pgsql-cache']:getCacheMemoryMB());
+       if ($iCacheMemory > getTotalMemoryMB())
+       {
+               $iCacheMemory = getCacheMemoryMB();
+               echo "WARNING: resetting cache memory to $iCacheMemory\n";
+       }
+
+       if (isset($aCMDResult['osm-file']) && !isset($aCMDResult['osmosis-init-date']))
+       {
+               $sBaseFile = basename($aCMDResult['osm-file']);
+               if (preg_match('#^planet-([0-9]{2})([0-9]{2})([0-9]{2})[.]#', $sBaseFile, $aMatch))
+               {
+                       $iTime = mktime(0, 0, 0, $aMatch[2], $aMatch[3], '20'.$aMatch[1]);
+                       $iTime -= (60*60*24);
+                       $aCMDResult['osmosis-init-date'] = date('Y-m-d', $iTime).'T22:00:00Z';
+               }
+       }
+       $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
+       if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+
        if ($aCMDResult['create-db'] || $aCMDResult['all'])
        {
+               echo "Create DB\n";
                $bDidSomething = true;
                $oDB =& DB::connect(CONST_Database_DSN, false);
                if (!PEAR::isError($oDB))
                {
-                       fail('database already exists');
+                       fail('database already exists ('.CONST_Database_DSN.')');
                }
-               passthru('createdb nominatim');
+               passthru('createdb -E UTF-8 '.$aDSNInfo['database']);
        }
 
        if ($aCMDResult['create-db'] || $aCMDResult['all'])
        {
+               echo "Create DB (2)\n";
                $bDidSomething = true;
                // TODO: path detection, detection memory, etc.
 
                $oDB =& getDB();
-               passthru('createlang plpgsql nominatim');
-               pgsqlRunScriptFile(CONST_Path_Postgresql_Contrib.'/_int.sql');
-               pgsqlRunScriptFile(CONST_Path_Postgresql_Contrib.'/hstore.sql');
+               passthru('createlang plpgsql '.$aDSNInfo['database']);
+               $pgver = (float) CONST_Postgresql_Version;
+               if ($pgver < 9.1) {
+                       pgsqlRunScriptFile(CONST_Path_Postgresql_Contrib.'/hstore.sql');
+               } else {
+                       pgsqlRunScript('CREATE EXTENSION hstore');
+               }
                pgsqlRunScriptFile(CONST_Path_Postgresql_Postgis.'/postgis.sql');
                pgsqlRunScriptFile(CONST_Path_Postgresql_Postgis.'/spatial_ref_sys.sql');
                pgsqlRunScriptFile(CONST_BasePath.'/data/country_name.sql');
-               pgsqlRunScriptFile(CONST_BasePath.'/data/country_naturaleathdata.sql');
+               pgsqlRunScriptFile(CONST_BasePath.'/data/country_naturalearthdata.sql');
                pgsqlRunScriptFile(CONST_BasePath.'/data/country_osm_grid.sql');
                pgsqlRunScriptFile(CONST_BasePath.'/data/gb_postcode.sql');
                pgsqlRunScriptFile(CONST_BasePath.'/data/us_statecounty.sql');
                pgsqlRunScriptFile(CONST_BasePath.'/data/us_state.sql');
+               pgsqlRunScriptFile(CONST_BasePath.'/data/us_postcode.sql');
                pgsqlRunScriptFile(CONST_BasePath.'/data/worldboundaries.sql');
        }
 
        if ($aCMDResult['import-data'] || $aCMDResult['all'])
        {
+               echo "Import\n";
                $bDidSomething = true;
-               passthru(CONST_BasePath.'/osm2pgsql/osm2pgsql -lsc -O gazetteer -C 10000 --hstore -d nominatim '.$aCMDResult['osm-file']);
+
+               $osm2pgsql = CONST_Osm2pgsql_Binary;
+               if (!file_exists($osm2pgsql))
+               {
+                       echo "Please download and build osm2pgsql.\nIf it is already installed, check the path in your local settings (settings/local.php) file.\n";
+                       fail("osm2pgsql not found in '$osm2pgsql'");
+               }
+               $osm2pgsql .= ' --tablespace-slim-index ssd --tablespace-main-index ssd --tablespace-main-data ssd --tablespace-slim-data data';
+               $osm2pgsql .= ' -lsc -O gazetteer --hstore';
+               $osm2pgsql .= ' -C 16000';
+               $osm2pgsql .= ' -d '.$aDSNInfo['database'].' '.$aCMDResult['osm-file'];
+               passthruCheckReturn($osm2pgsql);
+
+               $oDB =& getDB();
+               $x = $oDB->getRow('select * from place limit 1');
+               if (PEAR::isError($x)) {
+                       fail($x->getMessage());
+               }
+               if (!$x) fail('No Data');
        }
 
        if ($aCMDResult['create-functions'] || $aCMDResult['all'])
        {
+               echo "Functions\n";
                $bDidSomething = true;
                if (!file_exists(CONST_BasePath.'/module/nominatim.so')) fail("nominatim module not built");
                $sTemplate = file_get_contents(CONST_BasePath.'/sql/functions.sql');
-               $sTemplate = str_replace('{modulepath}',CONST_BasePath.'/module', $sTemplate);
+               $sTemplate = str_replace('{modulepath}', CONST_BasePath.'/module', $sTemplate);
+               if ($aCMDResult['enable-diff-updates']) $sTemplate = str_replace('RETURN NEW; -- @DIFFUPDATES@', '--', $sTemplate);
+               if ($aCMDResult['enable-debug-statements']) $sTemplate = str_replace('--DEBUG:', '', $sTemplate);
                pgsqlRunScript($sTemplate);
        }
 
+       if ($aCMDResult['create-minimal-tables'])
+       {
+               echo "Minimal Tables\n";
+               $bDidSomething = true;
+               pgsqlRunScriptFile(CONST_BasePath.'/sql/tables-minimal.sql');
+
+               $sScript = '';
+
+               // Backstop the import process - easliest possible import id
+               $sScript .= "insert into import_npi_log values (18022);\n";
+
+               $hFile = @fopen(CONST_BasePath.'/settings/partitionedtags.def', "r");
+               if (!$hFile) fail('unable to open list of partitions: '.CONST_BasePath.'/settings/partitionedtags.def');
+
+               while (($sLine = fgets($hFile, 4096)) !== false && $sLine && substr($sLine,0,1) !='#')
+               {
+                       list($sClass, $sType) = explode(' ', trim($sLine));
+                       $sScript .= "create table place_classtype_".$sClass."_".$sType." as ";
+                       $sScript .= "select place_id as place_id,geometry as centroid from placex limit 0;\n";
+
+                       $sScript .= "CREATE INDEX idx_place_classtype_".$sClass."_".$sType."_centroid ";
+                       $sScript .= "ON place_classtype_".$sClass."_".$sType." USING GIST (centroid);\n";
+
+                       $sScript .= "CREATE INDEX idx_place_classtype_".$sClass."_".$sType."_place_id ";
+                       $sScript .= "ON place_classtype_".$sClass."_".$sType." USING btree(place_id);\n";
+               }
+               fclose($hFile);
+               pgsqlRunScript($sScript);
+       }
+
        if ($aCMDResult['create-tables'] || $aCMDResult['all'])
        {
+               echo "Tables\n";
                $bDidSomething = true;
                pgsqlRunScriptFile(CONST_BasePath.'/sql/tables.sql');
 
 
        if ($aCMDResult['create-partitions'] || $aCMDResult['all'])
        {
+               echo "Partitions\n";
                $bDidSomething = true;
                $oDB =& getDB();
                $sSQL = 'select partition from country_name order by country_code';
                        }
                        $sTemplate = str_replace($aMatch[0], $sResult, $sTemplate);
                }
+
                pgsqlRunScript($sTemplate);
        }
 
+       if ($aCMDResult['import-wikipedia-articles'] || $aCMDResult['all'])
+       {
+               $bDidSomething = true;
+               $sWikiArticlesFile = CONST_BasePath.'/data/wikipedia_article.sql.bin';
+               $sWikiRedirectsFile = CONST_BasePath.'/data/wikipedia_redirect.sql.bin';
+               if (file_exists($sWikiArticlesFile))
+               {
+                       echo "Importing wikipedia articles...";
+                       pgsqlRunDropAndRestore($sWikiArticlesFile);
+                       echo "...done\n";
+               }
+               else
+               {
+                       echo "WARNING: wikipedia article dump file not found - places will have default importance\n";
+               }
+               if (file_exists($sWikiRedirectsFile))
+               {
+                       echo "Importing wikipedia redirects...";
+                       pgsqlRunDropAndRestore($sWikiRedirectsFile);
+                       echo "...done\n";
+               }
+               else
+               {
+                       echo "WARNING: wikipedia redirect dump file not found - some place importance values may be missing\n";
+               }
+       }
+
+
        if ($aCMDResult['load-data'] || $aCMDResult['all'])
        {
+               echo "Load Data\n";
                $bDidSomething = true;
 
                $oDB =& getDB();
                if (!pg_query($oDB->connection, 'CREATE SEQUENCE seq_place start 100000')) fail(pg_last_error($oDB->connection));
                echo '.';
 
+               $sSQL = 'select partition from country_name order by country_code';
+               $aPartitions = $oDB->getCol($sSQL);
+               if (PEAR::isError($aPartitions))
+               {
+                       fail($aPartitions->getMessage());
+               }
+               $aPartitions[] = 0;
+               foreach($aPartitions as $sPartition)
+               {
+                       if (!pg_query($oDB->connection, 'TRUNCATE location_road_'.$sPartition)) fail(pg_last_error($oDB->connection));
+                       echo '.';
+               }
+
+               // pre-create the word list
+               if (!$aCMDResult['disable-token-precalc'])
+               {
+                       if (!pg_query($oDB->connection, 'select count(make_keywords(v)) from (select distinct svals(name) as v from place) as w where v is not null;')) fail(pg_last_error($oDB->connection));
+                       echo '.';
+                       if (!pg_query($oDB->connection, 'select count(make_keywords(v)) from (select distinct postcode as v from place) as w where v is not null;')) fail(pg_last_error($oDB->connection));
+                       echo '.';
+                       if (!pg_query($oDB->connection, 'select count(getorcreate_housenumber_id(v)) from (select distinct housenumber as v from place where housenumber is not null) as w;')) fail(pg_last_error($oDB->connection));
+                       echo '.';
+               }
+
                $aDBInstances = array();
                for($i = 0; $i < $iInstances; $i++)
                {
                        echo '.';
                }
                echo "\n";
+               pgsqlRunScript('ALTER TABLE place SET TABLESPACE "data"');
+               echo "Reanalysing database...\n";
+               pgsqlRunScript('ANALYSE');
+       }
+
+       if ($aCMDResult['create-roads'])
+       {
+               $bDidSomething = true;
+
+               $oDB =& getDB();
+               $aDBInstances = array();
+               for($i = 0; $i < $iInstances; $i++)
+               {
+                       $aDBInstances[$i] =& getDB(true);
+                       if (!pg_query($aDBInstances[$i]->connection, 'set enable_bitmapscan = off')) fail(pg_last_error($oDB->connection));
+                       $sSQL = 'select count(*) from (select insertLocationRoad(partition, place_id, country_code, geometry) from ';
+                       $sSQL .= 'placex where osm_id % '.$iInstances.' = '.$i.' and rank_search between 26 and 27 and class = \'highway\') as x ';
+                       if ($aCMDResult['verbose']) echo "$sSQL\n";
+                       if (!pg_send_query($aDBInstances[$i]->connection, $sSQL)) fail(pg_last_error($oDB->connection));
+               }
+               $bAnyBusy = true;
+               while($bAnyBusy)
+               {
+                       $bAnyBusy = false;
+                       for($i = 0; $i < $iInstances; $i++)
+                       {
+                               if (pg_connection_busy($aDBInstances[$i]->connection)) $bAnyBusy = true;
+                       }
+                       sleep(1);
+                       echo '.';
+               }
+               echo "\n";
        }
 
-       if ($aCMDResult['import-tiger-data'] || $aCMDResult['all'])
+       if ($aCMDResult['import-tiger-data'])
        {
                $bDidSomething = true;
 
+               pgsqlRunScriptFile(CONST_BasePath.'/sql/tiger_import_start.sql');
+
                $aDBInstances = array();
                for($i = 0; $i < $iInstances; $i++)
                {
                        $aDBInstances[$i] =& getDB(true);
                }
 
-               foreach(glob(CONST_BasePath.'/data/tiger2009/*.sql') as $sFile)
+               foreach(glob(CONST_BasePath.'/data/tiger2011/*.sql') as $sFile)
                {
                        echo $sFile.': ';
                        $hFile = fopen($sFile, "r");
                        }
 
                        fclose($hFile);
-       
+
                        $bAnyBusy = true;
                        while($bAnyBusy)
                        {
                        }
                        echo "\n";
                }
+
+               echo "Creating indexes\n";
+               pgsqlRunScriptFile(CONST_BasePath.'/sql/tiger_import_finish.sql');
+       }
+
+       if ($aCMDResult['calculate-postcodes'] || $aCMDResult['all'])
+       {
+               $bDidSomething = true;
+               $oDB =& getDB();
+               if (!pg_query($oDB->connection, 'DELETE from placex where osm_type=\'P\'')) fail(pg_last_error($oDB->connection));
+               $sSQL = "insert into placex (osm_type,osm_id,class,type,postcode,country_code,geometry) ";
+               $sSQL .= "select 'P',nextval('seq_postcodes'),'place','postcode',postcode,country_code,";
+               $sSQL .= "ST_SetSRID(ST_Point(x,y),4326) as geometry from (select country_code,postcode,";
+               $sSQL .= "avg(st_x(st_centroid(geometry))) as x,avg(st_y(st_centroid(geometry))) as y ";
+               $sSQL .= "from placex where postcode is not null group by country_code,postcode) as x";
+               if (!pg_query($oDB->connection, $sSQL)) fail(pg_last_error($oDB->connection));
+
+               $sSQL = "insert into placex (osm_type,osm_id,class,type,postcode,country_code,geometry) ";
+               $sSQL .= "select 'P',nextval('seq_postcodes'),'place','postcode',postcode,'us',";
+               $sSQL .= "ST_SetSRID(ST_Point(x,y),4326) as geometry from us_postcode";
+               if (!pg_query($oDB->connection, $sSQL)) fail(pg_last_error($oDB->connection));
+       }
+
+       if (($aCMDResult['osmosis-init'] || $aCMDResult['all']) && isset($aCMDResult['osmosis-init-date']))
+       {
+               $bDidSomething = true;
+               $oDB =& getDB();
+
+               if (!file_exists(CONST_Osmosis_Binary)) fail("please download osmosis");
+               if (file_exists(CONST_BasePath.'/settings/configuration.txt')) echo "settings/configuration.txt already exists\n";
+               else passthru(CONST_Osmosis_Binary.' --read-replication-interval-init '.CONST_BasePath.'/settings');
+
+               $sDate = $aCMDResult['osmosis-init-date'];
+               $aDate = date_parse_from_format("Y-m-d\TH-i", $sDate);
+               $sURL = 'http://toolserver.org/~mazder/replicate-sequences/?';
+               $sURL .= 'Y='.$aDate['year'].'&m='.$aDate['month'].'&d='.$aDate['day'];
+               $sURL .= '&H='.$aDate['hour'].'&i='.$aDate['minute'].'&s=0';
+               $sURL .= '&stream=minute';
+               echo "Getting state file: $sURL\n";
+               $sStateFile = file_get_contents($sURL);
+               if (!$sStateFile || strlen($sStateFile) > 1000) fail("unable to obtain state file");
+               file_put_contents(CONST_BasePath.'/settings/state.txt', $sStateFile);
+               echo "Updating DB status\n";
+               pg_query($oDB->connection, 'TRUNCATE import_status');
+               $sSQL = "INSERT INTO import_status VALUES('".$sDate."')";
+               pg_query($oDB->connection, $sSQL);
+
+       }
+
+       if ($aCMDResult['index'] || $aCMDResult['all'])
+       {
+               $bDidSomething = true;
+               $sOutputFile = '';
+               if (isset($aCMDResult['index-output'])) $sOutputFile = ' -F '.$aCMDResult['index-output'];
+               $sBaseCmd = CONST_BasePath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -t '.$iInstances.$sOutputFile;
+               passthruCheckReturn($sBaseCmd.' -R 4');
+               if (!$aCMDResult['index-noanalyse']) pgsqlRunScript('ANALYSE');
+               passthruCheckReturn($sBaseCmd.' -r 5 -R 25');
+               if (!$aCMDResult['index-noanalyse']) pgsqlRunScript('ANALYSE');
+               passthruCheckReturn($sBaseCmd.' -r 26');
+       }
+
+       if ($aCMDResult['create-search-indices'] || $aCMDResult['all'])
+       {
+               echo "Search indices\n";
+               $bDidSomething = true;
+               $oDB =& getDB();
+               $sSQL = 'select partition from country_name order by country_code';
+               $aPartitions = $oDB->getCol($sSQL);
+               if (PEAR::isError($aPartitions))
+               {
+                       fail($aPartitions->getMessage());
+               }
+               $aPartitions[] = 0;
+
+               $sTemplate = file_get_contents(CONST_BasePath.'/sql/indices.src.sql');
+               preg_match_all('#^-- start(.*?)^-- end#ms', $sTemplate, $aMatches, PREG_SET_ORDER);
+               foreach($aMatches as $aMatch)
+               {
+                       $sResult = '';
+                       foreach($aPartitions as $sPartitionName)
+                       {
+                               $sResult .= str_replace('-partition-', $sPartitionName, $aMatch[1]);
+                       }
+                       $sTemplate = str_replace($aMatch[0], $sResult, $sTemplate);
+               }
+
+               pgsqlRunScript($sTemplate);
+       }
+
+       if (isset($aCMDResult['create-website']))
+       {
+               $bDidSomething = true;
+               $sTargetDir = $aCMDResult['create-website'];
+               if (!is_dir($sTargetDir))
+               {
+                       echo "You must create the website directory before calling this function.\n";
+                       fail("Target directory does not exist.");
+               }
+
+               @symlink(CONST_BasePath.'/website/details.php', $sTargetDir.'/details.php');
+               @symlink(CONST_BasePath.'/website/reverse.php', $sTargetDir.'/reverse.php');
+               @symlink(CONST_BasePath.'/website/search.php', $sTargetDir.'/search.php');
+               @symlink(CONST_BasePath.'/website/search.php', $sTargetDir.'/index.php');
+               @symlink(CONST_BasePath.'/website/images', $sTargetDir.'/images');
+               @symlink(CONST_BasePath.'/website/js', $sTargetDir.'/js');
+               echo "Symlinks created\n";
        }
 
        if (!$bDidSomething)
        {
                if (!file_exists($sFilename)) fail('unable to find '.$sFilename);
 
-               // Convert database DSN to psql paramaters
+               // Convert database DSN to psql parameters
                $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
-               $sCMD = 'psql -f '.$sFilename.' '.$aDSNInfo['database'];
+               if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+               $sCMD = 'psql -p '.$aDSNInfo['port'].' -d '.$aDSNInfo['database'].' -f '.$sFilename;
 
                $aDescriptors = array(
                        0 => array('pipe', 'r'),
 
        function pgsqlRunScript($sScript)
        {
-               // Convert database DSN to psql paramaters
+               // Convert database DSN to psql parameters
+               $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
+               if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+               $sCMD = 'psql -p '.$aDSNInfo['port'].' -d '.$aDSNInfo['database'];
+               $aDescriptors = array(
+                       0 => array('pipe', 'r'),
+                       1 => STDOUT, 
+                       2 => STDERR
+               );
+               $ahPipes = null;
+               $hProcess = @proc_open($sCMD, $aDescriptors, $ahPipes);
+               if (!is_resource($hProcess)) fail('unable to start pgsql');
+
+               while(strlen($sScript))
+               {
+                       $written = fwrite($ahPipes[0], $sScript);
+                       $sScript = substr($sScript, $written);
+               }
+               fclose($ahPipes[0]);
+               proc_close($hProcess);
+       }
+
+       function pgsqlRunRestoreData($sDumpFile)
+       {
+               // Convert database DSN to psql parameters
                $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
-               $sCMD = 'psql '.$aDSNInfo['database'];
+               if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+               $sCMD = 'pg_restore -p '.$aDSNInfo['port'].' -d '.$aDSNInfo['database'].' -Fc -a '.$sDumpFile;
 
                $aDescriptors = array(
                        0 => array('pipe', 'r'),
                );
                $ahPipes = null;
                $hProcess = proc_open($sCMD, $aDescriptors, $ahPipes);
-               if (!is_resource($hProcess)) fail('unable to start pgsql');
+               if (!is_resource($hProcess)) fail('unable to start pg_restore');
+
+               fclose($ahPipes[0]);
+
+               // TODO: error checking
+               while(!feof($ahPipes[1]))
+               {
+                       echo fread($ahPipes[1], 4096);
+               }
+               fclose($ahPipes[1]);
+
+               proc_close($hProcess);
+       }
+
+       function pgsqlRunDropAndRestore($sDumpFile)
+       {
+               // Convert database DSN to psql parameters
+               $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
+               if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+               $sCMD = 'pg_restore -p '.$aDSNInfo['port'].' -d '.$aDSNInfo['database'].' -Fc --clean '.$sDumpFile;
+
+               $aDescriptors = array(
+                       0 => array('pipe', 'r'),
+                       1 => array('pipe', 'w'),
+                       2 => array('file', '/dev/null', 'a')
+               );
+               $ahPipes = null;
+               $hProcess = proc_open($sCMD, $aDescriptors, $ahPipes);
+               if (!is_resource($hProcess)) fail('unable to start pg_restore');
 
-               fwrite($ahPipes[0], $sScript);
                fclose($ahPipes[0]);
 
                // TODO: error checking
 
                proc_close($hProcess);
        }
+
+       function passthruCheckReturn($cmd)
+       {
+               $result = -1;
+               passthru($cmd, $result);
+               if ($result != 0) fail('Error executing external command: '.$cmd);
+       }