Merge remote-tracking branch 'upstream/master'

[nominatim.git] / utils / update.php

diff --git a/utils/update.php b/utils/update.php
old mode 100755 (executable)
new mode 100644 (file)
index 62c07fa..cefccd6
--- a/utils/update.php
+++ b/utils/update.php
@@ -1,10 +1,15 @@
-#!/usr/bin/php -Cq

 <?php
 
 <?php
 

-require_once(dirname(dirname(__FILE__)).'/settings/settings.php');

 require_once(CONST_BasePath.'/lib/init-cmd.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_BasePath.'/lib/setup/AddressLevelParser.php');
+

 ini_set('memory_limit', '800M');
 
 ini_set('memory_limit', '800M');
 

+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',
 $aCMDOptions
 = array(
    'Import / update / index osm data',


@@ -14,6 +19,7 @@ $aCMDOptions
 
    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('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('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'),


@@ -35,8 +41,11 @@ $aCMDOptions
 
    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('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('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('no-npi', '', 0, 1, 0, 0, 'bool', '(obsolete)'),
   );
    array('no-npi', '', 0, 1, 0, 0, 'bool', '(obsolete)'),
   );

+

 getCmdOpt($_SERVER['argv'], $aCMDOptions, $aResult, true, true);
 
 if (!isset($aResult['index-instances'])) $aResult['index-instances'] = 1;
 getCmdOpt($_SERVER['argv'], $aCMDOptions, $aResult, true, true);
 
 if (!isset($aResult['index-instances'])) $aResult['index-instances'] = 1;


@@ -45,9 +54,10 @@ if (!isset($aResult['index-rank'])) $aResult['index-rank'] = 0;
 
 date_default_timezone_set('Etc/UTC');
 
 
 date_default_timezone_set('Etc/UTC');
 

-$oDB =& getDB();
+$oDB = new Nominatim\DB();
+$oDB->connect();

 
 

-$aDSNInfo = DB::parseDSN(CONST_Database_DSN);
+$aDSNInfo = Nominatim\DB::parseDSN(CONST_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
 if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
 
 // cache memory to be used by osm2pgsql, should not be more than the available memory


@@ -56,10 +66,51 @@ if ($iCacheMemory + 500 > getTotalMemoryMB()) {
     $iCacheMemory = getCacheMemoryMB();
     echo "WARNING: resetting cache memory to $iCacheMemory\n";
 }
     $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(CONST_Osm2pgsql_Binary))
+                 ->addParams('--hstore')
+                 ->addParams('--latlong')
+                 ->addParams('--append')
+                 ->addParams('--slim')
+                 ->addParams('--number-processes', 1)
+                 ->addParams('--cache', $iCacheMemory)
+                 ->addParams('--output', 'gazetteer')
+                 ->addParams('--style', CONST_Import_Style)
+                 ->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']) {
+    $oOsm2pgsqlCmd->addParams('--user', $aDSNInfo['username']);
+}
+if (isset($aDSNInfo['password']) && $aDSNInfo['password']) {
+    $oOsm2pgsqlCmd->addEnvPair('PGPASSWORD', $aDSNInfo['password']);
+}

 if (!is_null(CONST_Osm2pgsql_Flatnode_File) && CONST_Osm2pgsql_Flatnode_File) {
 if (!is_null(CONST_Osm2pgsql_Flatnode_File) && CONST_Osm2pgsql_Flatnode_File) {

-    $sOsm2pgsqlCmd .= ' --flat-nodes '.CONST_Osm2pgsql_Flatnode_File;
+    $oOsm2pgsqlCmd->addParams('--flat-nodes', CONST_Osm2pgsql_Flatnode_File);
+}
+
+
+$oIndexCmd = (new \Nominatim\Shell(CONST_BasePath.'/nominatim/nominatim.py'))
+             ->addParams('--database', $aDSNInfo['database'])
+             ->addParams('--port', $aDSNInfo['port'])
+             ->addParams('--threads', $aResult['index-instances']);
+
+if ($aResult['verbose']) {
+    $oIndexCmd->addParams('--verbose');
+}
+if (isset($aDSNInfo['hostspec']) && $aDSNInfo['hostspec']) {
+    $oIndexCmd->addParams('--host', $aDSNInfo['hostspec']);
+}
+if (isset($aDSNInfo['username']) && $aDSNInfo['username']) {
+    $oIndexCmd->addParams('--username', $aDSNInfo['username']);

 }
 }

+if (isset($aDSNInfo['password']) && $aDSNInfo['password']) {
+    $oIndexCmd->addEnvPair('PGPASSWORD', $aDSNInfo['password']);
+}
+

 
 if ($aResult['init-updates']) {
     // sanity check that the replication URL is correct
 
 if ($aResult['init-updates']) {
     // sanity check that the replication URL is correct


@@ -69,31 +120,59 @@ if ($aResult['init-updates']) {
         echo "Does the URL point to a directory containing OSM update data?\n\n";
         fail('replication URL not reachable.');
     }
         echo "Does the URL point to a directory containing OSM update data?\n\n";
         fail('replication URL not reachable.');
     }

-    $sSetup = CONST_InstallPath.'/utils/setup.php';
-    $iRet = -1;
-    passthru($sSetup.' --create-functions --enable-diff-updates', $iRet);
+    // sanity check for pyosmium-get-changes
+    if (!CONST_Pyosmium_Binary) {
+        echo "\nCONST_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');
+    }
+
+    $aOutput = 0;
+    $oCMD = new \Nominatim\Shell(CONST_Pyosmium_Binary, '--help');
+    exec($oCMD->escapedCmd(), $aOutput, $iRet);
+

     if ($iRet != 0) {
     if ($iRet != 0) {

-        fail('Error running setup script');
+        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";
+        fail('pyosmium-get-changes not found or not usable');
+    }
+
+    if (!$aResult['no-update-functions']) {
+        // instantiate setupClass to use the function therein
+        $cSetup = new SetupFunctions(array(
+                                      'enable-diff-updates' => true,
+                                      'verbose' => $aResult['verbose']
+                                     ));
+        $cSetup->connect();
+        $cSetup->createFunctions();

     }
 
     $sDatabaseDate = getDatabaseDate($oDB);
     }
 
     $sDatabaseDate = getDatabaseDate($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;
         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(CONST_Pyosmium_Binary))
+            ->addParams('--start-date', $sWindBack)
+            ->addParams('--server', CONST_Replication_Url);
+
+    exec($oCMD->escapedCmd(), $aOutput, $iRet);

     if ($iRet != 0 || $aOutput[0] == 'None') {
         fail('Error running pyosmium tools');
     }
 
     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)';
     $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.');
     }
 
         fail('Could not enter sequence into database.');
     }
 


@@ -101,13 +180,17 @@ if ($aResult['init-updates']) {
 }
 
 if ($aResult['check-for-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.');
     }
 
 
     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);
+    $oCmd = (new \Nominatim\Shell(CONST_BasePath.'/utils/check_server_for_updates.py'))
+            ->addParams(CONST_Replication_Url)
+            ->addParams($aLastState['sequence_id']);
+    $iRet = $oCmd->run();
+

     exit($iRet);
 }
 
     exit($iRet);
 }
 


@@ -120,12 +203,12 @@ if (isset($aResult['import-diff']) || isset($aResult['import-file'])) {
     }
 
     // Import the file
     }
 
     // Import the file

-    $sCMD = $sOsm2pgsqlCmd.' '.$sNextFile;
-    echo $sCMD."\n";
-    exec($sCMD, $sJunk, $iErrorLevel);
+    $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
     }
 
     // Don't update the import status - we don't know what this file contains


@@ -172,29 +255,32 @@ if ($sContentURL) {
 
 if ($bHaveDiff) {
     // import generated change file
 
 if ($bHaveDiff) {
     // import generated change file

-    $sCMD = $sOsm2pgsqlCmd.' '.$sTemporaryFile;
-    echo $sCMD."\n";
-    exec($sCMD, $sJunk, $iErrorLevel);
-    if ($iErrorLevel) {
-        fail("osm2pgsql exited with error level $iErrorLevel\n");
+
+    $oCMD = (clone $oOsm2pgsqlCmd)->addParams($sTemporaryFile);
+    echo $oCMD->escapedCmd()."\n";
+
+    $iRet = $oCMD->run();
+    if ($iRet) {
+        fail("osm2pgsql exited with error level $iRet\n");

     }
 }
 
 if ($aResult['deduplicate']) {
     }
 }
 
 if ($aResult['deduplicate']) {

-    $oDB =& getDB();
+    $oDB = new Nominatim\DB();
+    $oDB->connect();

 
 

-    if (getPostgresVersion($oDB) < 9.3) {
+    if ($oDB->getPostgresVersion() < 9.3) {

         fail('ERROR: deduplicate is only currently supported in postgresql 9.3');
     }
 
     $sSQL = 'select partition from country_name order by country_code';
         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 = $oDB->getCol($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;
     $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));
+        $nEntries = $oDB->getOne($sSQL);

         if ($nEntries == 0) {
             unset($aPartitions[$i]);
         }
         if ($nEntries == 0) {
             unset($aPartitions[$i]);
         }


@@ -203,7 +289,7 @@ if ($aResult['deduplicate']) {
     $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';
     $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));
+    $aDuplicateTokens = $oDB->getAll($sSQL);

     foreach ($aDuplicateTokens as $aToken) {
         if (trim($aToken['word_token']) == '' || trim($aToken['word_token']) == '-') continue;
         echo 'Deduping '.$aToken['word_token']."\n";
     foreach ($aDuplicateTokens as $aToken) {
         if (trim($aToken['word_token']) == '' || trim($aToken['word_token']) == '-') continue;
         echo 'Deduping '.$aToken['word_token']."\n";


@@ -211,7 +297,7 @@ if ($aResult['deduplicate']) {
         $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";
         $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));
+        $aTokenSet = $oDB->getAll($sSQL);

 
         $aKeep = array_shift($aTokenSet);
         $iKeepID = $aKeep['word_id'];
 
         $aKeep = array_shift($aTokenSet);
         $iKeepID = $aKeep['word_id'];


@@ -221,32 +307,32 @@ if ($aResult['deduplicate']) {
             $sSQL .= ' name_vector = array_replace(name_vector,'.$aRemove['word_id'].','.$iKeepID.'),';
             $sSQL .= ' nameaddress_vector = array_replace(nameaddress_vector,'.$aRemove['word_id'].','.$iKeepID.')';
             $sSQL .= ' where name_vector @> ARRAY['.$aRemove['word_id'].']';
             $sSQL .= ' name_vector = array_replace(name_vector,'.$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));
+            $oDB->exec($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'].']';
 
             $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));
+            $oDB->exec($sSQL);

 
             $sSQL = 'update location_area_country set';
             $sSQL .= ' keywords = array_replace(keywords,'.$aRemove['word_id'].','.$iKeepID.')';
             $sSQL .= ' where keywords @> ARRAY['.$aRemove['word_id'].']';
 
             $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));
+            $oDB->exec($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'].']';
 
             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));
+                $oDB->exec($sSQL);

 
                 $sSQL = 'update location_area_country set';
                 $sSQL .= ' keywords = array_replace(keywords,'.$aRemove['word_id'].','.$iKeepID.')';
                 $sSQL .= ' where keywords @> ARRAY['.$aRemove['word_id'].']';
 
                 $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));
+                $oDB->exec($sSQL);

             }
 
             $sSQL = 'delete from word where word_id = '.$aRemove['word_id'];
             }
 
             $sSQL = 'delete from word where word_id = '.$aRemove['word_id'];

-            chksql($oDB->query($sSQL));
+            $oDB->exec($sSQL);

         }
     }
 }
         }
     }
 }


@@ -258,24 +344,57 @@ if ($aResult['recompute-word-counts']) {
 }
 
 if ($aResult['index']) {
 }
 
 if ($aResult['index']) {

-    passthru(CONST_InstallPath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'].' -t '.$aResult['index-instances'].' -r '.$aResult['index-rank']);
+    $oCmd = (clone $oIndexCmd)
+            ->addParams('--minrank', $aResult['index-rank']);
+
+    // echo $oCmd->escapedCmd()."\n";
+    $oCmd->run();
+
+    $oDB->exec('update import_status set indexed = true');
+}
+
+if ($aResult['update-address-levels']) {
+    echo 'Updating address levels from '.CONST_Address_Level_Config.".\n";
+    $oAlParser = new \Nominatim\Setup\AddressLevelParser(CONST_Address_Level_Config);
+    $oAlParser->createTable($oDB, 'address_levels');
+}
+
+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) {
         fail('Error: Update interval too low for download.geofabrik.de. ' .
 }
 
 if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
     //
     if (strpos(CONST_Replication_Url, 'download.geofabrik.de') !== false && CONST_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';
     }
 
     $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'];
+
+    $oCMDDownload = (new \Nominatim\Shell(CONST_Pyosmium_Binary))
+                    ->addParams('--server', CONST_Replication_Url)
+                    ->addParams('--outfile', $sImportFile)
+                    ->addParams('--size', CONST_Replication_Max_Diff_size);
+
+    $oCMDImport = (clone $oOsm2pgsqlCmd)->addParams($sImportFile);

 
     while (true) {
         $fStartTime = time();
 
     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";
 
         if (!$aLastState['sequence_id']) {
             echo "Updates not set up. Please run ./utils/update.php --init-updates.\n";


@@ -287,7 +406,7 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
         $sBatchEnd = $aLastState['lastimportdate'];
         $iEndSequence = $aLastState['sequence_id'];
 
         $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 = $aLastState['unix_ts'] + CONST_Replication_Update_Interval;
             if ($fNextUpdate > $fStartTime) {
             // Sleep if the update interval has not yet been reached.
             $fNextUpdate = $aLastState['unix_ts'] + CONST_Replication_Update_Interval;
             if ($fNextUpdate > $fStartTime) {


@@ -301,11 +420,13 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
                 $fCMDStartTime = time();
                 $iNextSeq = (int) $aLastState['sequence_id'];
                 unset($aOutput);
                 $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);
                 }
                 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";
 
                 if ($iResult == 3) {
                     echo 'No new updates. Sleeping for '.CONST_Replication_Recheck_Interval." sec.\n";


@@ -321,7 +442,8 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
             // get the newest object from the diff file
             $sBatchEnd = 0;
             $iRet = 0;
             // 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_BasePath.'/utils/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']) {
             if ($iRet == 5) {
                 echo "Diff file is empty. skipping import.\n";
                 if (!$aResult['import-osmosis-all']) {


@@ -337,9 +459,11 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
 
             // Import the file
             $fCMDStartTime = time();
 
             // Import the file
             $fCMDStartTime = time();

-            echo $sCMDImport."\n";
+
+
+            echo $oCMDImport->escapedCmd()."\n";

             unset($sJunk);
             unset($sJunk);

-            exec($sCMDImport, $sJunk, $iErrorLevel);
+            $iErrorLevel = $oCMDImport->run();

             if ($iErrorLevel) {
                 echo "Error executing osm2pgsql: $iErrorLevel\n";
                 exit($iErrorLevel);
             if ($iErrorLevel) {
                 echo "Error executing osm2pgsql: $iErrorLevel\n";
                 exit($iErrorLevel);


@@ -353,22 +477,22 @@ 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);
             $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);
 
             // 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']) {
             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;
+            $oThisIndexCmd = clone($oIndexCmd);

             $fCMDStartTime = time();
 
             $fCMDStartTime = time();
 

-            echo "$sThisIndexCmd\n";
-            exec($sThisIndexCmd, $sJunk, $iErrorLevel);
+            echo $oThisIndexCmd->escapedCmd()."\n";
+            $iErrorLevel = $oThisIndexCmd->run();

             if ($iErrorLevel) {
                 echo "Error: $iErrorLevel\n";
                 exit($iErrorLevel);
             if ($iErrorLevel) {
                 echo "Error: $iErrorLevel\n";
                 exit($iErrorLevel);


@@ -376,15 +500,20 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
 
             $sSQL = 'INSERT INTO import_osmosis_log';
             $sSQL .= '(batchend, batchseq, batchsize, starttime, endtime, event)';
 
             $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);
             $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';
             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;
         }
 
         $fDuration = time() - $fStartTime;