X-Git-Url: https://git.openstreetmap.org/nominatim.git/blobdiff_plain/e92b54b869f3b3d1828b3c6468a216e2f56a5043..433017b9907c8348a48ef1a9fa7669e3d9523f1b:/utils/update.php

diff --git a/utils/update.php b/utils/update.php
old mode 100755
new mode 100644
index dc8389ab..931ca179
--- a/utils/update.php
+++ b/utils/update.php
@@ -1,10 +1,9 @@
-#!@PHP_BIN@ -Cq
 <?php
 
-require_once(dirname(dirname(__FILE__)).'/settings/settings.php');
-require_once(CONST_BasePath.'/lib/init-cmd.php');
-require_once(CONST_BasePath.'/lib/setup_functions.php');
-require_once(CONST_BasePath.'/lib/setup/SetupClass.php');
+require_once(CONST_LibDir.'/init-cmd.php');
+require_once(CONST_LibDir.'/setup_functions.php');
+require_once(CONST_LibDir.'/setup/SetupClass.php');
+require_once(CONST_LibDir.'/setup/AddressLevelParser.php');
 
 ini_set('memory_limit', '800M');
 
@@ -13,48 +12,55 @@ use Nominatim\Setup\SetupFunctions as SetupFunctions;
 // (long-opt, short-opt, min-occurs, max-occurs, num-arguments, num-arguments, type, help)
 $aCMDOptions
 = array(
-    'Import / update / index osm data',
-    array('help', 'h', 0, 1, 0, 0, false, 'Show Help'),
-    array('quiet', 'q', 0, 1, 0, 0, 'bool', 'Quiet output'),
-    array('verbose', 'v', 0, 1, 0, 0, 'bool', 'Verbose output'),
-
-    array('init-updates', '', 0, 1, 0, 0, 'bool', 'Set up database for updating'),
-    array('check-for-updates', '', 0, 1, 0, 0, 'bool', 'Check if new updates are available'),
-    array('no-update-functions', '', 0, 1, 0, 0, 'bool', 'Do not update trigger functions to support differential updates (assuming the diff update logic is already present)'),
-    array('import-osmosis', '', 0, 1, 0, 0, 'bool', 'Import updates once'),
-    array('import-osmosis-all', '', 0, 1, 0, 0, 'bool', 'Import updates forever'),
-    array('no-index', '', 0, 1, 0, 0, 'bool', 'Do not index the new data'),
-
-    array('calculate-postcodes', '', 0, 1, 0, 0, 'bool', 'Update postcode centroid table'),
-
-    array('import-file', '', 0, 1, 1, 1, 'realpath', 'Re-import data from an OSM file'),
-    array('import-diff', '', 0, 1, 1, 1, 'realpath', 'Import a diff (osc) file from local file system'),
-    array('osm2pgsql-cache', '', 0, 1, 1, 1, 'int', 'Cache size used by osm2pgsql'),
-
-    array('import-node', '', 0, 1, 1, 1, 'int', 'Re-import node'),
-    array('import-way', '', 0, 1, 1, 1, 'int', 'Re-import way'),
-    array('import-relation', '', 0, 1, 1, 1, 'int', 'Re-import relation'),
-    array('import-from-main-api', '', 0, 1, 0, 0, 'bool', 'Use OSM API instead of Overpass to download objects'),
-
-    array('index', '', 0, 1, 0, 0, 'bool', 'Index'),
-    array('index-rank', '', 0, 1, 1, 1, 'int', 'Rank to start indexing from'),
-    array('index-instances', '', 0, 1, 1, 1, 'int', 'Number of indexing instances (threads)'),
-
-    array('deduplicate', '', 0, 1, 0, 0, 'bool', 'Deduplicate tokens'),
-    array('recompute-word-counts', '', 0, 1, 0, 0, 'bool', 'Compute frequency of full-word search terms'),
-    array('no-npi', '', 0, 1, 0, 0, 'bool', '(obsolete)'),
-);
+   'Import / update / index osm data',
+   array('help', 'h', 0, 1, 0, 0, false, 'Show Help'),
+   array('quiet', 'q', 0, 1, 0, 0, 'bool', 'Quiet output'),
+   array('verbose', 'v', 0, 1, 0, 0, 'bool', 'Verbose output'),
+
+   array('init-updates', '', 0, 1, 0, 0, 'bool', 'Set up database for updating'),
+   array('check-for-updates', '', 0, 1, 0, 0, 'bool', 'Check if new updates are available'),
+   array('no-update-functions', '', 0, 1, 0, 0, 'bool', 'Do not update trigger functions to support differential updates (assuming the diff update logic is already present)'),
+   array('import-osmosis', '', 0, 1, 0, 0, 'bool', 'Import updates once'),
+   array('import-osmosis-all', '', 0, 1, 0, 0, 'bool', 'Import updates forever'),
+   array('no-index', '', 0, 1, 0, 0, 'bool', 'Do not index the new data'),
+
+   array('calculate-postcodes', '', 0, 1, 0, 0, 'bool', 'Update postcode centroid table'),
+
+   array('import-file', '', 0, 1, 1, 1, 'realpath', 'Re-import data from an OSM file'),
+   array('import-diff', '', 0, 1, 1, 1, 'realpath', 'Import a diff (osc) file from local file system'),
+   array('osm2pgsql-cache', '', 0, 1, 1, 1, 'int', 'Cache size used by osm2pgsql'),
+
+   array('import-node', '', 0, 1, 1, 1, 'int', 'Re-import node'),
+   array('import-way', '', 0, 1, 1, 1, 'int', 'Re-import way'),
+   array('import-relation', '', 0, 1, 1, 1, 'int', 'Re-import relation'),
+   array('import-from-main-api', '', 0, 1, 0, 0, 'bool', 'Use OSM API instead of Overpass to download objects'),
+
+   array('index', '', 0, 1, 0, 0, 'bool', 'Index'),
+   array('index-rank', '', 0, 1, 1, 1, 'int', 'Rank to start indexing from'),
+   array('index-instances', '', 0, 1, 1, 1, 'int', 'Number of indexing instances (threads)'),
+
+   array('recompute-word-counts', '', 0, 1, 0, 0, 'bool', 'Compute frequency of full-word search terms'),
+   array('update-address-levels', '', 0, 1, 0, 0, 'bool', 'Reimport address level configuration (EXPERT)'),
+   array('recompute-importance', '', 0, 1, 0, 0, 'bool', 'Recompute place importances'),
+
+   array('project-dir', '', 0, 1, 1, 1, 'realpath', 'Base directory of the Nominatim installation (default: .)'),
+  );
 
 getCmdOpt($_SERVER['argv'], $aCMDOptions, $aResult, true, true);
 
+loadSettings($aCMDResult['project-dir'] ?? getcwd());
+setupHTTPProxy();
+
 if (!isset($aResult['index-instances'])) $aResult['index-instances'] = 1;
 if (!isset($aResult['index-rank'])) $aResult['index-rank'] = 0;
 
 date_default_timezone_set('Etc/UTC');
 
-$oDB =& getDB();
+$oDB = new Nominatim\DB();
+$oDB->connect();
+$fPostgresVersion = $oDB->getPostgresVersion();
 
-$aDSNInfo = DB::parseDSN(CONST_Database_DSN);
+$aDSNInfo = Nominatim\DB::parseDSN(getSetting('DATABASE_DSN'));
 if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
 
 // cache memory to be used by osm2pgsql, should not be more than the available memory
@@ -63,71 +69,125 @@ if ($iCacheMemory + 500 > getTotalMemoryMB()) {
     $iCacheMemory = getCacheMemoryMB();
     echo "WARNING: resetting cache memory to $iCacheMemory\n";
 }
-$sOsm2pgsqlCmd = CONST_Osm2pgsql_Binary.' -klas --number-processes 1 -C '.$iCacheMemory.' -O gazetteer -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'];
+
+$oOsm2pgsqlCmd = (new \Nominatim\Shell(getOsm2pgsqlBinary()))
+                 ->addParams('--hstore')
+                 ->addParams('--latlong')
+                 ->addParams('--append')
+                 ->addParams('--slim')
+                 ->addParams('--with-forward-dependencies', 'false')
+                 ->addParams('--log-progress', 'true')
+                 ->addParams('--number-processes', 1)
+                 ->addParams('--cache', $iCacheMemory)
+                 ->addParams('--output', 'gazetteer')
+                 ->addParams('--style', getImportStyle())
+                 ->addParams('--database', $aDSNInfo['database'])
+                 ->addParams('--port', $aDSNInfo['port']);
+
+if (isset($aDSNInfo['hostspec']) && $aDSNInfo['hostspec']) {
+    $oOsm2pgsqlCmd->addParams('--host', $aDSNInfo['hostspec']);
+}
 if (isset($aDSNInfo['username']) && $aDSNInfo['username']) {
-    $sOsm2pgsqlCmd .= ' -U ' . $aDSNInfo['username'];
+    $oOsm2pgsqlCmd->addParams('--user', $aDSNInfo['username']);
+}
+if (isset($aDSNInfo['password']) && $aDSNInfo['password']) {
+    $oOsm2pgsqlCmd->addEnvPair('PGPASSWORD', $aDSNInfo['password']);
+}
+if (getSetting('FLATNODE_FILE')) {
+    $oOsm2pgsqlCmd->addParams('--flat-nodes', getSetting('FLATNODE_FILE'));
+}
+if ($fPostgresVersion >= 11.0) {
+    $oOsm2pgsqlCmd->addEnvPair(
+        'PGOPTIONS',
+        '-c jit=off -c max_parallel_workers_per_gather=0'
+    );
+}
+
+
+$oIndexCmd = (new \Nominatim\Shell(CONST_DataDir.'/nominatim/nominatim.py'))
+             ->addParams('--database', $aDSNInfo['database'])
+             ->addParams('--port', $aDSNInfo['port'])
+             ->addParams('--threads', $aResult['index-instances']);
+if (!$aResult['quiet']) {
+    $oIndexCmd->addParams('--verbose');
+}
+if ($aResult['verbose']) {
+    $oIndexCmd->addParams('--verbose');
 }
 if (isset($aDSNInfo['hostspec']) && $aDSNInfo['hostspec']) {
-    $sOsm2pgsqlCmd .= ' -H ' . $aDSNInfo['hostspec'];
+    $oIndexCmd->addParams('--host', $aDSNInfo['hostspec']);
+}
+if (isset($aDSNInfo['username']) && $aDSNInfo['username']) {
+    $oIndexCmd->addParams('--username', $aDSNInfo['username']);
 }
-$aProcEnv = null;
 if (isset($aDSNInfo['password']) && $aDSNInfo['password']) {
-    $aProcEnv = array_merge(array('PGPASSWORD' => $aDSNInfo['password']), $_ENV);
+    $oIndexCmd->addEnvPair('PGPASSWORD', $aDSNInfo['password']);
 }
 
-if (!is_null(CONST_Osm2pgsql_Flatnode_File) && CONST_Osm2pgsql_Flatnode_File) {
-    $sOsm2pgsqlCmd .= ' --flat-nodes '.CONST_Osm2pgsql_Flatnode_File;
-}
+$sPyosmiumBin = getSetting('PYOSMIUM_BINARY');
+$sBaseURL = getSetting('REPLICATION_URL');
+
 
 if ($aResult['init-updates']) {
     // sanity check that the replication URL is correct
-    $sBaseState = file_get_contents(CONST_Replication_Url.'/state.txt');
+    $sBaseState = file_get_contents($sBaseURL.'/state.txt');
     if ($sBaseState === false) {
         echo "\nCannot find state.txt file at the configured replication URL.\n";
         echo "Does the URL point to a directory containing OSM update data?\n\n";
         fail('replication URL not reachable.');
     }
     // sanity check for pyosmium-get-changes
-    if (!CONST_Pyosmium_Binary) {
-        echo "\nCONST_Pyosmium_Binary not configured.\n";
+    if (!$sPyosmiumBin) {
+        echo "\nNOMINATIM_PYOSMIUM_BINARY not configured.\n";
         echo "You need to install pyosmium and set up the path to pyosmium-get-changes\n";
-        echo "in your local settings file.\n\n";
-        fail('CONST_Pyosmium_Binary not configured');
+        echo "in your local .env file.\n\n";
+        fail('NOMINATIM_PYOSMIUM_BINARY not configured');
     }
+
     $aOutput = 0;
-    $sCmd = CONST_Pyosmium_Binary.' --help';
-    exec($sCmd, $aOutput, $iRet);
+    $oCMD = new \Nominatim\Shell($sPyosmiumBin, '--help');
+    exec($oCMD->escapedCmd(), $aOutput, $iRet);
+
     if ($iRet != 0) {
         echo "Cannot execute pyosmium-get-changes.\n";
         echo "Make sure you have pyosmium installed correctly\n";
-        echo "and have set up CONST_Pyosmium_Binary to point to pyosmium-get-changes.\n";
+        echo "and have set up NOMINATIM_PYOSMIUM_BINARY to point to pyosmium-get-changes.\n";
         fail('pyosmium-get-changes not found or not usable');
     }
 
     if (!$aResult['no-update-functions']) {
         // instantiate setupClass to use the function therein
-        $cSetup = new SetupFunctions('update');
+        $cSetup = new SetupFunctions(array(
+                                      'enable-diff-updates' => true,
+                                      'verbose' => $aResult['verbose']
+                                     ));
         $cSetup->createFunctions();
     }
 
     $sDatabaseDate = getDatabaseDate($oDB);
-    if ($sDatabaseDate === false) {
+    if (!$sDatabaseDate) {
         fail('Cannot determine date of database.');
     }
     $sWindBack = strftime('%Y-%m-%dT%H:%M:%SZ', strtotime($sDatabaseDate) - (3*60*60));
 
     // get the appropriate state id
     $aOutput = 0;
-    $sCmd = CONST_Pyosmium_Binary.' -D '.$sWindBack.' --server '.CONST_Replication_Url;
-    exec($sCmd, $aOutput, $iRet);
+    $oCMD = (new \Nominatim\Shell($sPyosmiumBin))
+            ->addParams('--start-date', $sWindBack)
+            ->addParams('--server', $sBaseURL);
+
+    exec($oCMD->escapedCmd(), $aOutput, $iRet);
     if ($iRet != 0 || $aOutput[0] == 'None') {
         fail('Error running pyosmium tools');
     }
 
-    pg_query($oDB->connection, 'TRUNCATE import_status');
+    $oDB->exec('TRUNCATE import_status');
     $sSQL = "INSERT INTO import_status (lastimportdate, sequence_id, indexed) VALUES('";
     $sSQL .= $sDatabaseDate."',".$aOutput[0].', true)';
-    if (!pg_query($oDB->connection, $sSQL)) {
+
+    try {
+        $oDB->exec($sSQL);
+    } catch (\Nominatim\DatabaseError $e) {
         fail('Could not enter sequence into database.');
     }
 
@@ -135,13 +195,17 @@ if ($aResult['init-updates']) {
 }
 
 if ($aResult['check-for-updates']) {
-    $aLastState = chksql($oDB->getRow('SELECT sequence_id FROM import_status'));
+    $aLastState = $oDB->getRow('SELECT sequence_id FROM import_status');
 
     if (!$aLastState['sequence_id']) {
         fail('Updates not set up. Please run ./utils/update.php --init-updates.');
     }
 
-    system(CONST_BasePath.'/utils/check_server_for_updates.py '.CONST_Replication_Url.' '.$aLastState['sequence_id'], $iRet);
+    $oCmd = (new \Nominatim\Shell(CONST_BinDir.'/check_server_for_updates.py'))
+            ->addParams($sBaseURL)
+            ->addParams($aLastState['sequence_id']);
+    $iRet = $oCmd->run();
+
     exit($iRet);
 }
 
@@ -154,12 +218,12 @@ if (isset($aResult['import-diff']) || isset($aResult['import-file'])) {
     }
 
     // Import the file
-    $sCMD = $sOsm2pgsqlCmd.' '.$sNextFile;
-    echo $sCMD."\n";
-    $iErrorLevel = runWithEnv($sCMD, $aProcEnv);
+    $oCMD = (clone $oOsm2pgsqlCmd)->addParams($sNextFile);
+    echo $oCMD->escapedCmd()."\n";
+    $iRet = $oCMD->run();
 
-    if ($iErrorLevel) {
-        fail("Error from osm2pgsql, $iErrorLevel\n");
+    if ($iRet) {
+        fail("Error from osm2pgsql, $iRet\n");
     }
 
     // Don't update the import status - we don't know what this file contains
@@ -167,11 +231,11 @@ if (isset($aResult['import-diff']) || isset($aResult['import-file'])) {
 
 if ($aResult['calculate-postcodes']) {
     info('Update postcodes centroids');
-    $sTemplate = file_get_contents(CONST_BasePath.'/sql/update-postcodes.sql');
+    $sTemplate = file_get_contents(CONST_DataDir.'/sql/update-postcodes.sql');
     runSQLScript($sTemplate, true, true);
 }
 
-$sTemporaryFile = CONST_BasePath.'/data/osmosischange.osc';
+$sTemporaryFile = CONST_InstallDir.'/osmosischange.osc';
 $bHaveDiff = false;
 $bUseOSMApi = isset($aResult['import-from-main-api']) && $aResult['import-from-main-api'];
 $sContentURL = '';
@@ -187,15 +251,15 @@ if (isset($aResult['import-way']) && $aResult['import-way']) {
     if ($bUseOSMApi) {
         $sContentURL = 'https://www.openstreetmap.org/api/0.6/way/'.$aResult['import-way'].'/full';
     } else {
-        $sContentURL = 'https://overpass-api.de/api/interpreter?data=(way('.$aResult['import-way'].');node(w););out%20meta;';
+        $sContentURL = 'https://overpass-api.de/api/interpreter?data=(way('.$aResult['import-way'].');%3E;);out%20meta;';
     }
 }
 
 if (isset($aResult['import-relation']) && $aResult['import-relation']) {
     if ($bUseOSMApi) {
-        $sContentURLsModifyXMLstr = 'https://www.openstreetmap.org/api/0.6/relation/'.$aResult['import-relation'].'/full';
+        $sContentURL = 'https://www.openstreetmap.org/api/0.6/relation/'.$aResult['import-relation'].'/full';
     } else {
-        $sContentURL = 'https://overpass-api.de/api/interpreter?data=((rel('.$aResult['import-relation'].');way(r);node(w));node(r));out%20meta;';
+        $sContentURL = 'https://overpass-api.de/api/interpreter?data=(rel(id:'.$aResult['import-relation'].');%3E;);out%20meta;';
     }
 }
 
@@ -206,124 +270,77 @@ if ($sContentURL) {
 
 if ($bHaveDiff) {
     // import generated change file
-    $sCMD = $sOsm2pgsqlCmd.' '.$sTemporaryFile;
-    echo $sCMD."\n";
-    $iErrorLevel = runWithEnv($sCMD, $aProcEnv);
-    if ($iErrorLevel) {
-        fail("osm2pgsql exited with error level $iErrorLevel\n");
-    }
-}
 
-if ($aResult['deduplicate']) {
-    $oDB =& getDB();
+    $oCMD = (clone $oOsm2pgsqlCmd)->addParams($sTemporaryFile);
+    echo $oCMD->escapedCmd()."\n";
 
-    if (getPostgresVersion($oDB) < 9.3) {
-        fail('ERROR: deduplicate is only currently supported in postgresql 9.3');
-    }
-
-    $sSQL = 'select partition from country_name order by country_code';
-    $aPartitions = chksql($oDB->getCol($sSQL));
-    $aPartitions[] = 0;
-
-    // we don't care about empty search_name_* partitions, they can't contain mentions of duplicates
-    foreach ($aPartitions as $i => $sPartition) {
-        $sSQL = 'select count(*) from search_name_'.$sPartition;
-        $nEntries = chksql($oDB->getOne($sSQL));
-        if ($nEntries == 0) {
-            unset($aPartitions[$i]);
-        }
-    }
-
-    $sSQL = "select word_token,count(*) from word where substr(word_token, 1, 1) = ' '";
-    $sSQL .= ' and class is null and type is null and country_code is null';
-    $sSQL .= ' group by word_token having count(*) > 1 order by word_token';
-    $aDuplicateTokens = chksql($oDB->getAll($sSQL));
-    foreach ($aDuplicateTokens as $aToken) {
-        if (trim($aToken['word_token']) == '' || trim($aToken['word_token']) == '-') continue;
-        echo 'Deduping '.$aToken['word_token']."\n";
-        $sSQL = 'select word_id,';
-        $sSQL .= ' (select count(*) from search_name where nameaddress_vector @> ARRAY[word_id]) as num';
-        $sSQL .= " from word where word_token = '".$aToken['word_token'];
-        $sSQL .= "' and class is null and type is null and country_code is null order by num desc";
-        $aTokenSet = chksql($oDB->getAll($sSQL));
-
-        $aKeep = array_shift($aTokenSet);
-        $iKeepID = $aKeep['word_id'];
-
-        foreach ($aTokenSet as $aRemove) {
-            $sSQL = 'update search_name set';
-            $sSQL .= ' name_vector = array_replace(name_vector,'.$aRemove['word_id'].','.$iKeepID.'),';
-            $sSQL .= ' nameaddress_vector = array_replace(nameaddress_vector,'.$aRemove['word_id'].','.$iKeepID.')';
-            $sSQL .= ' where name_vector @> ARRAY['.$aRemove['word_id'].']';
-            chksql($oDB->query($sSQL));
-
-            $sSQL = 'update search_name set';
-            $sSQL .= ' nameaddress_vector = array_replace(nameaddress_vector,'.$aRemove['word_id'].','.$iKeepID.')';
-            $sSQL .= ' where nameaddress_vector @> ARRAY['.$aRemove['word_id'].']';
-            chksql($oDB->query($sSQL));
-
-            $sSQL = 'update location_area_country set';
-            $sSQL .= ' keywords = array_replace(keywords,'.$aRemove['word_id'].','.$iKeepID.')';
-            $sSQL .= ' where keywords @> ARRAY['.$aRemove['word_id'].']';
-            chksql($oDB->query($sSQL));
-
-            foreach ($aPartitions as $sPartition) {
-                $sSQL = 'update search_name_'.$sPartition.' set';
-                $sSQL .= ' name_vector = array_replace(name_vector,'.$aRemove['word_id'].','.$iKeepID.')';
-                $sSQL .= ' where name_vector @> ARRAY['.$aRemove['word_id'].']';
-                chksql($oDB->query($sSQL));
-
-                $sSQL = 'update location_area_country set';
-                $sSQL .= ' keywords = array_replace(keywords,'.$aRemove['word_id'].','.$iKeepID.')';
-                $sSQL .= ' where keywords @> ARRAY['.$aRemove['word_id'].']';
-                chksql($oDB->query($sSQL));
-            }
-
-            $sSQL = 'delete from word where word_id = '.$aRemove['word_id'];
-            chksql($oDB->query($sSQL));
-        }
+    $iRet = $oCMD->run();
+    if ($iRet) {
+        fail("osm2pgsql exited with error level $iRet\n");
     }
 }
 
 if ($aResult['recompute-word-counts']) {
     info('Recompute frequency of full-word search terms');
-    $sTemplate = file_get_contents(CONST_BasePath.'/sql/words_from_search_name.sql');
+    $sTemplate = file_get_contents(CONST_DataDir.'/sql/words_from_search_name.sql');
     runSQLScript($sTemplate, true, true);
 }
 
 if ($aResult['index']) {
-    $sCmd = CONST_InstallPath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'].' -t '.$aResult['index-instances'].' -r '.$aResult['index-rank'];
-    if (isset($aDSNInfo['hostspec']) && $aDSNInfo['hostspec']) {
-        $sCmd .= ' -H ' . $aDSNInfo['hostspec'];
-    }
-    if (isset($aDSNInfo['username']) && $aDSNInfo['username']) {
-        $sCmd .= ' -U ' . $aDSNInfo['username'];
-    }
+    $oCmd = (clone $oIndexCmd)
+            ->addParams('--minrank', $aResult['index-rank'], '-b');
+    $oCmd->run();
+
+    $oCmd = (clone $oIndexCmd)
+            ->addParams('--minrank', $aResult['index-rank']);
+    $oCmd->run();
+
+    $oDB->exec('update import_status set indexed = true');
+}
+
+if ($aResult['update-address-levels']) {
+    $sAddressLevelConfig = getSettingConfig('ADDRESS_LEVEL_CONFIG', 'address-levels.json');
+    echo 'Updating address levels from '.$sAddressLevelConfig.".\n";
+    $oAlParser = new \Nominatim\Setup\AddressLevelParser($sAddressLevelConfig);
+    $oAlParser->createTable($oDB, 'address_levels');
+}
 
-    runWithEnv($sCmd, $aProcEnv);
+if ($aResult['recompute-importance']) {
+    echo "Updating importance values for database.\n";
+    $oDB = new Nominatim\DB();
+    $oDB->connect();
+
+    $sSQL = 'ALTER TABLE placex DISABLE TRIGGER ALL;';
+    $sSQL .= 'UPDATE placex SET (wikipedia, importance) =';
+    $sSQL .= '   (SELECT wikipedia, importance';
+    $sSQL .= '    FROM compute_importance(extratags, country_code, osm_type, osm_id));';
+    $sSQL .= 'UPDATE placex s SET wikipedia = d.wikipedia, importance = d.importance';
+    $sSQL .= ' FROM placex d';
+    $sSQL .= ' WHERE s.place_id = d.linked_place_id and d.wikipedia is not null';
+    $sSQL .= '       and (s.wikipedia is null or s.importance < d.importance);';
+    $sSQL .= 'ALTER TABLE placex ENABLE TRIGGER ALL;';
+    $oDB->exec($sSQL);
 }
 
 if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
     //
-    if (strpos(CONST_Replication_Url, 'download.geofabrik.de') !== false && CONST_Replication_Update_Interval < 86400) {
+    if (strpos($sBaseURL, 'download.geofabrik.de') !== false && getSetting('REPLICATION_UPDATE_INTERVAL') < 86400) {
         fail('Error: Update interval too low for download.geofabrik.de. ' .
-             "Please check install documentation (http://nominatim.org/release-docs/latest/Import-and-Update#setting-up-the-update-process)\n");
+             "Please check install documentation (https://nominatim.org/release-docs/latest/admin/Import-and-Update#setting-up-the-update-process)\n");
     }
 
-    $sImportFile = CONST_InstallPath.'/osmosischange.osc';
-    $sCMDDownload = CONST_Pyosmium_Binary.' --server '.CONST_Replication_Url.' -o '.$sImportFile.' -s '.CONST_Replication_Max_Diff_size;
-    $sCMDImport = $sOsm2pgsqlCmd.' '.$sImportFile;
-    $sCMDIndex = CONST_InstallPath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'].' -t '.$aResult['index-instances'];
-    if (isset($aDSNInfo['hostspec']) && $aDSNInfo['hostspec']) {
-        $sCMDIndex .= ' -H ' . $aDSNInfo['hostspec'];
-    }
-    if (isset($aDSNInfo['username']) && $aDSNInfo['username']) {
-        $sCMDIndex .= ' -U ' . $aDSNInfo['username'];
-    }
+    $sImportFile = CONST_InstallDir.'/osmosischange.osc';
+
+    $oCMDDownload = (new \Nominatim\Shell($sPyosmiumBin))
+                    ->addParams('--server', $sBaseURL)
+                    ->addParams('--outfile', $sImportFile)
+                    ->addParams('--size', getSetting('REPLICATION_MAX_DIFF'));
+
+    $oCMDImport = (clone $oOsm2pgsqlCmd)->addParams($sImportFile);
 
     while (true) {
         $fStartTime = time();
-        $aLastState = chksql($oDB->getRow('SELECT *, EXTRACT (EPOCH FROM lastimportdate) as unix_ts FROM import_status'));
+        $aLastState = $oDB->getRow('SELECT *, EXTRACT (EPOCH FROM lastimportdate) as unix_ts FROM import_status');
 
         if (!$aLastState['sequence_id']) {
             echo "Updates not set up. Please run ./utils/update.php --init-updates.\n";
@@ -335,9 +352,9 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
         $sBatchEnd = $aLastState['lastimportdate'];
         $iEndSequence = $aLastState['sequence_id'];
 
-        if ($aLastState['indexed'] == 't') {
+        if ($aLastState['indexed']) {
             // Sleep if the update interval has not yet been reached.
-            $fNextUpdate = $aLastState['unix_ts'] + CONST_Replication_Update_Interval;
+            $fNextUpdate = $aLastState['unix_ts'] + getSetting('REPLICATION_UPDATE_INTERVAL');
             if ($fNextUpdate > $fStartTime) {
                 $iSleepTime = $fNextUpdate - $fStartTime;
                 echo "Waiting for next update for $iSleepTime sec.";
@@ -349,15 +366,18 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
                 $fCMDStartTime = time();
                 $iNextSeq = (int) $aLastState['sequence_id'];
                 unset($aOutput);
-                echo "$sCMDDownload -I $iNextSeq\n";
+
+                $oCMD = (clone $oCMDDownload)->addParams('--start-id', $iNextSeq);
+                echo $oCMD->escapedCmd()."\n";
                 if (file_exists($sImportFile)) {
                     unlink($sImportFile);
                 }
-                exec($sCMDDownload.' -I '.$iNextSeq, $aOutput, $iResult);
+                exec($oCMD->escapedCmd(), $aOutput, $iResult);
 
                 if ($iResult == 3) {
-                    echo 'No new updates. Sleeping for '.CONST_Replication_Recheck_Interval." sec.\n";
-                    sleep(CONST_Replication_Recheck_Interval);
+                    $sSleep = getSetting('REPLICATION_RECHECK_INTERVAL');
+                    echo 'No new updates. Sleeping for '.$sSleep." sec.\n";
+                    sleep($sSleep);
                 } elseif ($iResult != 0) {
                     echo 'ERROR: updates failed.';
                     exit($iResult);
@@ -369,7 +389,8 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
             // get the newest object from the diff file
             $sBatchEnd = 0;
             $iRet = 0;
-            exec(CONST_BasePath.'/utils/osm_file_date.py '.$sImportFile, $sBatchEnd, $iRet);
+            $oCMD = new \Nominatim\Shell(CONST_BinDir.'/osm_file_date.py', $sImportFile);
+            exec($oCMD->escapedCmd(), $sBatchEnd, $iRet);
             if ($iRet == 5) {
                 echo "Diff file is empty. skipping import.\n";
                 if (!$aResult['import-osmosis-all']) {
@@ -385,9 +406,11 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
 
             // Import the file
             $fCMDStartTime = time();
-            echo $sCMDImport."\n";
+
+
+            echo $oCMDImport->escapedCmd()."\n";
             unset($sJunk);
-            $iErrorLevel = runWithEnv($sCMDImport, $aProcEnv);
+            $iErrorLevel = $oCMDImport->run();
             if ($iErrorLevel) {
                 echo "Error executing osm2pgsql: $iErrorLevel\n";
                 exit($iErrorLevel);
@@ -401,22 +424,31 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
             $sSQL .= date('Y-m-d H:i:s', $fCMDStartTime)."','";
             $sSQL .= date('Y-m-d H:i:s')."','import')";
             var_Dump($sSQL);
-            chksql($oDB->query($sSQL));
+            $oDB->exec($sSQL);
 
             // update the status
             $sSQL = "UPDATE import_status SET lastimportdate = '$sBatchEnd', indexed=false, sequence_id = $iEndSequence";
             var_Dump($sSQL);
-            chksql($oDB->query($sSQL));
+            $oDB->exec($sSQL);
             echo date('Y-m-d H:i:s')." Completed download step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60, 2)." minutes\n";
         }
 
         // Index file
         if (!$aResult['no-index']) {
-            $sThisIndexCmd = $sCMDIndex;
             $fCMDStartTime = time();
 
-            echo "$sThisIndexCmd\n";
-            $iErrorLevel = runWithEnv($sThisIndexCmd, $aProcEnv);
+            $oThisIndexCmd = clone($oIndexCmd);
+            $oThisIndexCmd->addParams('-b');
+            echo $oThisIndexCmd->escapedCmd()."\n";
+            $iErrorLevel = $oThisIndexCmd->run();
+            if ($iErrorLevel) {
+                echo "Error: $iErrorLevel\n";
+                exit($iErrorLevel);
+            }
+
+            $oThisIndexCmd = clone($oIndexCmd);
+            echo $oThisIndexCmd->escapedCmd()."\n";
+            $iErrorLevel = $oThisIndexCmd->run();
             if ($iErrorLevel) {
                 echo "Error: $iErrorLevel\n";
                 exit($iErrorLevel);
@@ -424,15 +456,20 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
 
             $sSQL = 'INSERT INTO import_osmosis_log';
             $sSQL .= '(batchend, batchseq, batchsize, starttime, endtime, event)';
-            $sSQL .= " values ('$sBatchEnd',$iEndSequence,$iFileSize,'";
+            $sSQL .= " values ('$sBatchEnd',$iEndSequence,NULL,'";
             $sSQL .= date('Y-m-d H:i:s', $fCMDStartTime)."','";
             $sSQL .= date('Y-m-d H:i:s')."','index')";
             var_Dump($sSQL);
-            $oDB->query($sSQL);
+            $oDB->exec($sSQL);
             echo date('Y-m-d H:i:s')." Completed index step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60, 2)." minutes\n";
 
             $sSQL = 'update import_status set indexed = true';
-            $oDB->query($sSQL);
+            $oDB->exec($sSQL);
+        } else {
+            if ($aResult['import-osmosis-all']) {
+                echo "Error: --no-index cannot be used with continuous imports (--import-osmosis-all).\n";
+                exit(1);
+            }
         }
 
         $fDuration = time() - $fStartTime;