X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/b5fc5e0a71f73f2cafde441b54edcbb7610d45d7..a3b4f80c996056136828560e8e5fb26db367f238:/utils/update.php

diff --git a/utils/update.php b/utils/update.php
index 2b72fe82..176bde06 100755
--- a/utils/update.php
+++ b/utils/update.php
@@ -1,104 +1,136 @@
-#!/usr/bin/php -Cq
+#!@PHP_BIN@ -Cq
 <?php
 
-require_once(dirname(dirname(__FILE__)).'/settings/settings.php');
-require_once(CONST_BasePath.'/lib/init-cmd.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/SetupClass.php';
 ini_set('memory_limit', '800M');
 
-$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'),
+use Nominatim\Setup\SetupFunctions as SetupFunctions;
 
-   array('init-updates', '', 0, 1, 0, 0, 'bool', 'Set up database for updating'),
-   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-npi', '', 0, 1, 0, 0, 'bool', '(obsolate)'),
-   array('no-index', '', 0, 1, 0, 0, 'bool', 'Do not index the new data'),
+$aCMDOptions = createUpdateArgvArray();
 
-   array('import-all', '', 0, 1, 0, 0, 'bool', 'Import all available files'),
-
-   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'),
-  );
 getCmdOpt($_SERVER['argv'], $aCMDOptions, $aResult, true, true);
 
-if (!isset($aResult['index-instances'])) $aResult['index-instances'] = 1;
-if (!isset($aResult['index-rank'])) $aResult['index-rank'] = 0;
+if (!isset($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 = &getDB();
 
 $aDSNInfo = DB::parseDSN(CONST_Database_DSN);
-if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) $aDSNInfo['port'] = 5432;
+if (!isset($aDSNInfo['port']) || !$aDSNInfo['port']) {
+    $aDSNInfo['port'] = 5432;
+}
 
 // cache memory to be used by osm2pgsql, should not be more than the available memory
-$iCacheMemory = (isset($aResult['osm2pgsql-cache'])?$aResult['osm2pgsql-cache']:2000);
+$iCacheMemory = (isset($aResult['osm2pgsql-cache']) ? $aResult['osm2pgsql-cache'] : 2000);
 if ($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'];
-if (!is_null(CONST_Osm2pgsql_Flatnode_File)) {
-    $sOsm2pgsqlCmd .= ' --flat-nodes '.CONST_Osm2pgsql_Flatnode_File;
+$sOsm2pgsqlCmd = CONST_Osm2pgsql_Binary . ' -klas --number-processes 1 -C ' . $iCacheMemory . ' -O gazetteer -d ' . $aDSNInfo['database'] . ' -P ' . $aDSNInfo['port'];
+if (isset($aDSNInfo['username']) && $aDSNInfo['username']) {
+    $sOsm2pgsqlCmd .= ' -U ' . $aDSNInfo['username'];
+}
+if (isset($aDSNInfo['hostspec']) && $aDSNInfo['hostspec']) {
+    $sOsm2pgsqlCmd .= ' -H ' . $aDSNInfo['hostspec'];
+}
+$aProcEnv = null;
+if (isset($aDSNInfo['password']) && $aDSNInfo['password']) {
+    $aProcEnv = array_merge(array('PGPASSWORD' => $aDSNInfo['password']), $_ENV);
+}
+
+if (!is_null(CONST_Osm2pgsql_Flatnode_File) && CONST_Osm2pgsql_Flatnode_File) {
+    $sOsm2pgsqlCmd .= ' --flat-nodes ' . CONST_Osm2pgsql_Flatnode_File;
 }
 
 if ($aResult['init-updates']) {
-    $sSetup = CONST_InstallPath.'/utils/setup.php';
-    $iRet = -1;
-    passthru($sSetup.' --create-functions --enable-diff-updates', $iRet);
+    // sanity check that the replication URL is correct
+    $sBaseState = file_get_contents(CONST_Replication_Url . '/state.txt');
+    if ($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";
+        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;
+    $sCmd = CONST_Pyosmium_Binary . ' --help';
+    exec($sCmd, $aOutput, $iRet);
     if ($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']) {
+        // instatiate setupClass to use the function therein
+        // instantiate Setup class
+        $cSetup = new SetupFunctions($aResult);
+        $cSetup->createFunctions();
     }
 
     $sDatabaseDate = getDatabaseDate($oDB);
-    $sWindBack = strftime('%Y-%m-%dT%H:%M:%SZ',
-                          strtotime($sDatabaseDate) - (3*60*60));
+    if ($sDatabaseDate === false) {
+        fail('Cannot determine date of database.');
+    }
+    $sWindBack = strftime('%Y-%m-%dT%H:%M:%SZ', strtotime($sDatabaseDate) - (3 * 60 * 60));
 
     // get the appropriate state id
     $aOutput = 0;
-    exec(CONST_Pyosmium_Binary.' -D '.$sWindBack.' --server '.CONST_Replication_Url,
-        $aOutput, $iRet);
-    if ($iRet != 0) {
+    $sCmd = CONST_Pyosmium_Binary . ' -D ' . $sWindBack . ' --server ' . CONST_Replication_Url;
+    exec($sCmd, $aOutput, $iRet);
+    if ($iRet != 0 || $aOutput[0] == 'None') {
         fail('Error running pyosmium tools');
     }
 
     pg_query($oDB->connection, 'TRUNCATE import_status');
     $sSQL = "INSERT INTO import_status (lastimportdate, sequence_id, indexed) VALUES('";
-    $sSQL .= $sDatabaseDate."',".$aOutput[0].", true)";
+    $sSQL .= $sDatabaseDate . "'," . $aOutput[0] . ', true)';
     if (!pg_query($oDB->connection, $sSQL)) {
-        fail("Could not enter sequence into database.");
+        fail('Could not enter sequence into database.');
     }
 
     echo "Done. Database updates will start at sequence $aOutput[0] ($sWindBack)\n";
 }
 
+if ($aResult['check-for-updates']) {
+    $aLastState = chksql($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'], $iRet);
+    exit($iRet);
+}
+
 if (isset($aResult['import-diff']) || isset($aResult['import-file'])) {
     // import diffs and files directly (e.g. from osmosis --rri)
     $sNextFile = isset($aResult['import-diff']) ? $aResult['import-diff'] : $aResult['import-file'];
+
     if (!file_exists($sNextFile)) {
         fail("Cannot open $sNextFile\n");
     }
 
     // Import the file
-    $sCMD = $sOsm2pgsqlCmd.' '.$sNextFile;
-    echo $sCMD."\n";
-    exec($sCMD, $sJunk, $iErrorLevel);
+    $sCMD = $sOsm2pgsqlCmd . ' ' . $sNextFile;
+    echo $sCMD . "\n";
+    $iErrorLevel = runWithEnv($sCMD, $aProcEnv);
 
     if ($iErrorLevel) {
         fail("Error from osm2pgsql, $iErrorLevel\n");
@@ -107,31 +139,37 @@ if (isset($aResult['import-diff']) || isset($aResult['import-file'])) {
     // Don't update the import status - we don't know what this file contains
 }
 
-$sTemporaryFile = CONST_BasePath.'/data/osmosischange.osc';
+if ($aResult['calculate-postcodes']) {
+    info('Update postcodes centroids');
+    $sTemplate = file_get_contents(CONST_BasePath . '/sql/update-postcodes.sql');
+    runSQLScript($sTemplate, true, true);
+}
+
+$sTemporaryFile = CONST_BasePath . '/data/osmosischange.osc';
 $bHaveDiff = false;
 $bUseOSMApi = isset($aResult['import-from-main-api']) && $aResult['import-from-main-api'];
 $sContentURL = '';
 if (isset($aResult['import-node']) && $aResult['import-node']) {
     if ($bUseOSMApi) {
-        $sContentURL = 'http://www.openstreetmap.org/api/0.6/node/'.$aResult['import-node'];
+        $sContentURL = 'https://www.openstreetmap.org/api/0.6/node/' . $aResult['import-node'];
     } else {
-        $sContentURL = 'http://overpass-api.de/api/interpreter?data=node('.$aResult['import-node'].');out%20meta;';
+        $sContentURL = 'https://overpass-api.de/api/interpreter?data=node(' . $aResult['import-node'] . ');out%20meta;';
     }
 }
 
 if (isset($aResult['import-way']) && $aResult['import-way']) {
     if ($bUseOSMApi) {
-        $sContentURL = 'http://www.openstreetmap.org/api/0.6/way/'.$aResult['import-way'].'/full';
+        $sContentURL = 'https://www.openstreetmap.org/api/0.6/way/' . $aResult['import-way'] . '/full';
     } else {
-        $sContentURL = 'http://overpass-api.de/api/interpreter?data=(way('.$aResult['import-way'].');node(w););out%20meta;';
+        $sContentURL = 'https://overpass-api.de/api/interpreter?data=(way(' . $aResult['import-way'] . ');node(w););out%20meta;';
     }
 }
 
 if (isset($aResult['import-relation']) && $aResult['import-relation']) {
     if ($bUseOSMApi) {
-        $sContentURLsModifyXMLstr = 'http://www.openstreetmap.org/api/0.6/relation/'.$aResult['import-relation'].'/full';
+        $sContentURLsModifyXMLstr = 'https://www.openstreetmap.org/api/0.6/relation/' . $aResult['import-relation'] . '/full';
     } else {
-        $sContentURL = 'http://overpass-api.de/api/interpreter?data=((rel('.$aResult['import-relation'].');way(r);node(w));node(r));out%20meta;';
+        $sContentURL = 'https://overpass-api.de/api/interpreter?data=((rel(' . $aResult['import-relation'] . ');way(r);node(w));node(r));out%20meta;';
     }
 }
 
@@ -142,19 +180,19 @@ if ($sContentURL) {
 
 if ($bHaveDiff) {
     // import generated change file
-    $sCMD = $sOsm2pgsqlCmd.' '.$sTemporaryFile;
-    echo $sCMD."\n";
-    exec($sCMD, $sJunk, $iErrorLevel);
+    $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();
+    $oDB = &getDB();
 
     if (getPostgresVersion($oDB) < 9.3) {
-        fail("ERROR: deduplicate is only currently supported in postgresql 9.3");
+        fail('ERROR: deduplicate is only currently supported in postgresql 9.3');
     }
 
     $sSQL = 'select partition from country_name order by country_code';
@@ -163,7 +201,7 @@ if ($aResult['deduplicate']) {
 
     // 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;
+        $sSQL = 'select count(*) from search_name_' . $sPartition;
         $nEntries = chksql($oDB->getOne($sSQL));
         if ($nEntries == 0) {
             unset($aPartitions[$i]);
@@ -171,15 +209,18 @@ 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 .= ' 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'];
+        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));
 
@@ -187,74 +228,93 @@ if ($aResult['deduplicate']) {
         $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']."]";
+            $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']."]";
+            $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']."]";
+            $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']."]";
+                $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']."]";
+                $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'];
+            $sSQL = 'delete from word where word_id = ' . $aRemove['word_id'];
             chksql($oDB->query($sSQL));
         }
     }
 }
 
+if ($aResult['recompute-word-counts']) {
+    info('Recompute frequency of full-word search terms');
+    $sTemplate = file_get_contents(CONST_BasePath . '/sql/words_from_search_name.sql');
+    runSQLScript($sTemplate, true, true);
+}
+
 if ($aResult['index']) {
-    passthru(CONST_InstallPath.'/nominatim/nominatim -i -d '.$aDSNInfo['database'].' -P '.$aDSNInfo['port'].' -t '.$aResult['index-instances'].' -r '.$aResult['index-rank']);
+    $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 ' . $aDSNInfo['username'];
+    }
+
+    runWithEnv($sCmd, $aProcEnv);
 }
 
 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://wiki.openstreetmap.org/wiki/Nominatim/Installation#Updates)\n");
+        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");
     }
 
-    $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'];
+    $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'];
+    }
 
     while (true) {
         $fStartTime = time();
-        $iFileSize = 1001;
-
-        $aLastState = chksql($oDB->getRow('SELECT * FROM import_status'));
+        $aLastState = chksql($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";
             exit(1);
         }
 
-        echo 'Currently at sequence '.$aLastState['sequence_id'].' ('.$aLastState['lastimportdate'].') - '.$aLastState['indexed']." indexed\n";
+        echo 'Currently at sequence ' . $aLastState['sequence_id'] . ' (' . $aLastState['lastimportdate'] . ') - ' . $aLastState['indexed'] . " indexed\n";
 
         $sBatchEnd = $aLastState['lastimportdate'];
         $iEndSequence = $aLastState['sequence_id'];
 
         if ($aLastState['indexed'] == 't') {
             // Sleep if the update interval has not yet been reached.
-            $fNextUpdate = $aLastState['lastimportdate'] + CONST_Replication_Update_Interval;
+            $fNextUpdate = $aLastState['unix_ts'] + CONST_Replication_Update_Interval;
             if ($fNextUpdate > $fStartTime) {
                 $iSleepTime = $fNextUpdate - $fStartTime;
                 echo "Waiting for next update for $iSleepTime sec.";
@@ -267,25 +327,44 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
                 $iNextSeq = (int) $aLastState['sequence_id'];
                 unset($aOutput);
                 echo "$sCMDDownload -I $iNextSeq\n";
-                unlink($sImportFile);
-                exec($sCMDDownload.' -I '.$iNextSeq, $aOutput, $iResult);
+                if (file_exists($sImportFile)) {
+                    unlink($sImportFile);
+                }
+                exec($sCMDDownload . ' -I ' . $iNextSeq, $aOutput, $iResult);
 
                 if ($iResult == 3) {
-                    echo 'No new updates. Sleeping for '.CONST_Replication_Recheck_Interval." sec.\n";
+                    echo 'No new updates. Sleeping for ' . CONST_Replication_Recheck_Interval . " sec.\n";
                     sleep(CONST_Replication_Recheck_Interval);
-                } else if ($iResult != 0) {
+                } elseif ($iResult != 0) {
                     echo 'ERROR: updates failed.';
                     exit($iResult);
                 } else {
-                    $iEndSequence = (int)$aOutput[0];
+                    $iEndSequence = (int) $aOutput[0];
                 }
             } while ($iResult);
 
+            // get the newest object from the diff file
+            $sBatchEnd = 0;
+            $iRet = 0;
+            exec(CONST_BasePath . '/utils/osm_file_date.py ' . $sImportFile, $sBatchEnd, $iRet);
+            if ($iRet == 5) {
+                echo "Diff file is empty. skipping import.\n";
+                if (!$aResult['import-osmosis-all']) {
+                    exit(0);
+                } else {
+                    continue;
+                }
+            }
+            if ($iRet != 0) {
+                fail('Error getting date from diff file.');
+            }
+            $sBatchEnd = $sBatchEnd[0];
+
             // Import the file
             $fCMDStartTime = time();
-            echo $sCMDImport."\n";
+            echo $sCMDImport . "\n";
             unset($sJunk);
-            exec($sCMDImport, $sJunk, $iErrorLevel);
+            $iErrorLevel = runWithEnv($sCMDImport, $aProcEnv);
             if ($iErrorLevel) {
                 echo "Error executing osm2pgsql: $iErrorLevel\n";
                 exit($iErrorLevel);
@@ -293,8 +372,11 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
 
             // write the update logs
             $iFileSize = filesize($sImportFile);
-            $sBatchEnd = getDatabaseDate($oDB);
-            $sSQL = "INSERT INTO import_osmosis_log (batchend, batchseq, batchsize, starttime, endtime, event) values ('$sBatchEnd',$iEndSequence,$iFileSize,'".date('Y-m-d H:i:s', $fCMDStartTime)."','".date('Y-m-d H:i:s')."','import')";
+            $sSQL = 'INSERT INTO import_osmosis_log';
+            $sSQL .= '(batchend, batchseq, batchsize, starttime, endtime, event)';
+            $sSQL .= " values ('$sBatchEnd',$iEndSequence,$iFileSize,'";
+            $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));
 
@@ -302,7 +384,7 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
             $sSQL = "UPDATE import_status SET lastimportdate = '$sBatchEnd', indexed=false, sequence_id = $iEndSequence";
             var_Dump($sSQL);
             chksql($oDB->query($sSQL));
-            echo date('Y-m-d H:i:s')." Completed download step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60, 2)." minutes\n";
+            echo date('Y-m-d H:i:s') . " Completed download step for $sBatchEnd in " . round((time() - $fCMDStartTime) / 60, 2) . " minutes\n";
         }
 
         // Index file
@@ -311,24 +393,30 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
             $fCMDStartTime = time();
 
             echo "$sThisIndexCmd\n";
-            exec($sThisIndexCmd, $sJunk, $iErrorLevel);
+            $iErrorLevel = runWithEnv($sThisIndexCmd, $aProcEnv);
             if ($iErrorLevel) {
                 echo "Error: $iErrorLevel\n";
                 exit($iErrorLevel);
             }
 
-            $sSQL = "INSERT INTO import_osmosis_log (batchend, batchseq, batchsize, starttime, endtime, event) values ('$sBatchEnd',$iEndSequence,$iFileSize,'".date('Y-m-d H:i:s', $fCMDStartTime)."','".date('Y-m-d H:i:s')."','index')";
+            $sSQL = 'INSERT INTO import_osmosis_log';
+            $sSQL .= '(batchend, batchseq, batchsize, starttime, endtime, event)';
+            $sSQL .= " values ('$sBatchEnd',$iEndSequence,$iFileSize,'";
+            $sSQL .= date('Y-m-d H:i:s', $fCMDStartTime) . "','";
+            $sSQL .= date('Y-m-d H:i:s') . "','index')";
             var_Dump($sSQL);
             $oDB->query($sSQL);
-            echo date('Y-m-d H:i:s')." Completed index step for $sBatchEnd in ".round((time()-$fCMDStartTime)/60, 2)." minutes\n";
+            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";
+            $sSQL = 'update import_status set indexed = true';
             $oDB->query($sSQL);
         }
 
         $fDuration = time() - $fStartTime;
-        echo date('Y-m-d H:i:s')." Completed all for $sBatchEnd in ".round($fDuration/60, 2)." minutes\n";
-        if (!$aResult['import-osmosis-all']) exit(0);
+        echo date('Y-m-d H:i:s') . " Completed all for $sBatchEnd in " . round($fDuration / 60, 2) . " minutes\n";
+        if (!$aResult['import-osmosis-all']) {
+            exit(0);
+        }
+
     }
 }
-