OpenXE/tools/database_compare/database_compare.php

444 lines
16 KiB
PHP

<?php
/*
* Helper to compare database structures from files vs. database
*
* Copyright (c) 2022 OpenXE project
*
*/
/*
MariaDB [openxe]> SHOW FULL TABLES;
+----------------------------------------------+------------+
| Tables_in_openxe | Table_type |
+----------------------------------------------+------------+
| abrechnungsartikel | BASE TABLE |
| abrechnungsartikel_gruppe | BASE TABLE |
| abschlagsrechnung_rechnung | BASE TABLE |
| accordion | BASE TABLE |
| adapterbox | BASE TABLE |
| adapterbox_log | BASE TABLE |
| adapterbox_request_log | BASE TABLE |
| adresse | BASE TABLE |
| adresse_abosammelrechnungen | BASE TABLE |
| adresse_accounts | BASE TABLE |
| adresse_filter | BASE TABLE |
| adresse_filter_gruppen | BASE TABLE |
...
MariaDB [openxe]> SHOW FULL COLUMNS FROM wiki;
+-------------------+--------------+--------------------+------+-----+---------+----------------+---------------------------------+---------+
| Field | Type | Collation | Null | Key | Default | Extra | Privileges | Comment |
+-------------------+--------------+--------------------+------+-----+---------+----------------+---------------------------------+---------+
| id | int(11) | NULL | NO | PRI | NULL | auto_increment | select,insert,update,references | |
| name | varchar(255) | utf8mb3_general_ci | YES | MUL | NULL | | select,insert,update,references | |
| content | longtext | utf8mb3_general_ci | NO | | NULL | | select,insert,update,references | |
| lastcontent | longtext | utf8mb3_general_ci | NO | | NULL | | select,insert,update,references | |
| wiki_workspace_id | int(11) | NULL | NO | | 0 | | select,insert,update,references | |
| parent_id | int(11) | NULL | NO | | 0 | | select,insert,update,references | |
| language | varchar(32) | utf8mb3_general_ci | NO | | | | select,insert,update,references | |
+-------------------+--------------+--------------------+------+-----+---------+----------------+---------------------------------+---------+
7 rows in set (0.002 sec)
*/
function implode_with_quote(string $quote, string $delimiter, array $array_to_implode) : string {
return($quote.implode($quote.$delimiter.$quote, $array_to_implode).$quote);
}
$host = 'localhost';
$user = 'openxe';
$passwd = 'openxe';
$schema = 'openxe';
$target_folder = "export";
$tables_file_name_wo_folder = "0-tables.txt";
$tables_file_name = $target_folder."/".$tables_file_name_wo_folder;
$delimiter = ";";
$quote = '"';
$color_red = "\033[31m";
$color_green = "\033[32m";
$color_yellow = "\033[33m";
$color_default = "\033[39m";
echo("\n");
if ($argc > 1) {
if (in_array('-v', $argv)) {
$verbose = true;
} else {
$verbose = false;
}
if (in_array('-f', $argv)) {
$force = true;
} else {
$force = false;
}
if (in_array('-e', $argv)) {
$export = true;
} else {
$export = false;
}
if (in_array('-c', $argv)) {
$compare = true;
} else {
$compare = false;
}
if (in_array('-i', $argv)) {
$onlytables = true;
} else {
$onlytables = false;
}
echo("--------------- Loading from database $schema@$host... ---------------\n");
$tables = load_tables_from_db($host, $schema, $user, $passwd);
if (empty($tables)) {
echo ("Could not load from $schema@$host\n");
exit;
}
echo("--------------- Loading from database complete. ---------------\n");
if ($export) {
echo("--------------- Export to CSV... ---------------\n");
$result = save_tables_to_csv($tables, $target_folder, $tables_file_name, $delimiter, $quote, $force);
if (!$result) {
echo ("Could not save to CSV $path/$tables_file_name\n");
exit;
}
echo("Exported ".count($tables)." tables.\n");
echo("--------------- Export to CSV complete. ---------------\n");
}
if ($compare) {
// Results here as ['text'] ['diff']
$compare_differences = array();
echo("--------------- Loading from CSV... ---------------\n");
$compare_tables = load_tables_from_csv($target_folder, $tables_file_name_wo_folder, $delimiter, $quote);
if (empty($compare_tables)) {
echo ("Could not load from CSV $path/$tables_file_name\n");
exit;
}
echo("--------------- Loading from CSV complete. ---------------\n");
// Do the comparison
echo("--------------- Comparison Databse DB vs. CSV ---------------\n");
echo(count($tables)." tables in DB, ".count($compare_tables)." in CSV.\n");
$compare_differences = compare_table_array($tables,"in DB",$compare_tables,"in CSV",!$onlytables,$verbose);
echo("Comparison found ".(empty($compare_differences)?0:count($compare_differences))." differences.\n");
foreach ($compare_differences as $compare_difference) {
$comma = "";
foreach ($compare_difference as $key => $value) {
echo($comma."$key => '$value'");
$comma = ", ";
}
echo("\n");
}
echo("--------------- Comparison CSV (nominal) vs. database (actual) ---------------\n");
$compare_differences = compare_table_array($compare_tables,"in CSV",$tables,"in DB",false,$verbose);
echo("Comparison found ".(empty($compare_differences)?0:count($compare_differences))." differences.\n");
foreach ($compare_differences as $compare_difference) {
$comma = "";
foreach ($compare_difference as $key => $value) {
echo($comma."$key => '$value'");
$comma = ", ";
}
echo("\n");
}
echo("--------------- Comparison complete. ---------------\n");
}
echo("--------------- Done. ---------------\n");
echo("\n");
} else {
info();
exit;
}
// Load all tables from a DB connection into a tables array
function load_tables_from_db(string $host, string $schema, string $user, string $passwd) : array {
// First get the contents of the database table structure
$mysqli = mysqli_connect($host, $user, $passwd, $schema);
/* Check if the connection succeeded */
if (!$mysqli) {
return(array());
}
// Get tables and views
$sql = "SHOW FULL TABLES";
$query_result = mysqli_query($mysqli, $sql);
if (!$query_result) {
return(array());
}
while ($row = mysqli_fetch_assoc($query_result)) {
$table = array();
$table['name'] = $row['Tables_in_'.$schema];
$table['type'] = $row['Table_type'];
$tables[] = $table; // Add table to list of tables
}
// Get and add columns of the table
foreach ($tables as &$table) {
$sql = "SHOW FULL COLUMNS FROM ".$table['name'];
$query_result = mysqli_query($mysqli, $sql);
if (!$query_result) {
return(array());
}
$columns = array();
while ($column = mysqli_fetch_assoc($query_result)) {
$columns[] = $column; // Add column to list of columns
}
$table['columns'] = $columns;
}
unset($table);
return($tables);
}
// Save all tables to CSV files
function save_tables_to_csv(array $tables, string $path, string $tables_file_name, string $delimiter, string $quote, bool $force) : bool {
// Prepare tables file
if (!is_dir($path)) {
mkdir($path);
}
if (!$force && file_exists($path."/".$tables_file_name)) {
return(false);
}
$tables_file = fopen($tables_file_name, "w");
if (empty($tables_file)) {
return(false);
}
$first_table = true;
// Now export all colums of the tables
foreach ($tables as $export_table) {
if ($first_table) {
$first_table = false;
fwrite($tables_file,$quote.'name'.$quote.$delimiter.$quote.'type'.$quote."\n");
}
fwrite($tables_file,$quote.$export_table['name'].$quote.$delimiter.$quote.$export_table['type'].$quote."\n");
// Prepare export_table file
$table_file_name = $path."/".$export_table['name'].".txt";
if (!$force && file_exists($table_file_name)) {
return(false);
}
$table_file = fopen($table_file_name, "w");
if (empty($table_file)) {
return(false);
}
$first_column = true;
foreach ($export_table['columns'] as $column) {
if ($first_column) {
$first_column = false;
fwrite($table_file,implode_with_quote($quote,$delimiter,array_keys($column))."\n");
}
fwrite($table_file,implode_with_quote($quote,$delimiter,array_values($column))."\n");
}
unset($column);
fclose($table_file);
}
unset($export_table);
fwrite($tables_file,"\n");
fclose($tables_file);
return(true);
}
// Load all tables from CSV files
function load_tables_from_csv(string $path, string $tables_file_name, string $delimiter, string $quote) : array {
$tables = array();
$first_table = true;
$tables_file = fopen($path."/".$tables_file_name, "r");
if (!$tables_file) {
return(array());
}
while (($csv_line = fgetcsv($tables_file,0,$delimiter,$quote)) !== FALSE) {
if ($first_table) {
$first_table = false;
} else if (count($csv_line) == 2) {
$new_table = array();
$new_table['name'] = $csv_line['0'];
$new_table['type'] = $csv_line['1'];
$tables[] = $new_table;
} else {
}
}
fclose($tables_file);
// Get columns for each table
foreach ($tables as &$table) {
$table_file_name = $path."/".$table['name'].".txt";
if (!file_exists($table_file_name)) {
return(array());
}
$table_file = fopen($table_file_name, "r");
if (empty($table_file)) {
return(array());
}
$first_column = true;
$column_headers = array();
$columns = array();
$column = array();
while (($csv_line = fgetcsv($table_file,0,$delimiter,$quote)) !== FALSE) {
if ($first_column) {
$first_column = false;
$column_headers = $csv_line;
} else {
for ($cr = 0;$cr < count($csv_line);$cr++) {
$column[$column_headers[$cr]] = $csv_line[$cr];
}
$columns[] = $column;
}
}
$table['columns'] = $columns;
}
unset($table);
return($tables);
}
// Compare two definitions
// Report based on the first array
// Return Array
function compare_table_array(array $nominal, string $nominal_name, array $actual, string $actual_name, bool $check_column_definitions, bool $verbose) : array {
$compare_differences = array();
if (count($nominal) != count($actual)) {
$compare_difference = array();
$compare_difference['type'] = "Table count";
$compare_difference[$nominal_name] = count($nominal);
$compare_difference[$actual_name] = count($actual);
$compare_differences[] = $compare_difference;
}
foreach ($nominal as $database_table) {
$found_table = array();
foreach ($actual as $compare_table) {
if ($database_table['name'] == $compare_table['name']) {
$found_table = $compare_table;
break;
}
}
unset($compare_table);
if ($found_table) {
if ($verbose) {
echo("Table '".$database_table['name']."' found in CSV '$tables_file_name'.\n");
}
// Check columns
$compare_table_columns = array_column($found_table['columns'],'Field');
foreach ($database_table['columns'] as $column) {
$column_name_to_find = $column['Field'];
$column_key = array_search($column_name_to_find,$compare_table_columns,true);
if ($column_key !== false) {
if ($verbose) {
echo("Column '".$column['Field']."' from table '".$database_table['name']."' in table '".$found_table['name']."' found in CSV.\n");
}
// Compare the properties of the columns
if ($check_column_definitions) {
$found_column = $found_table['columns'][$column_key];
foreach ($column as $key => $value) {
if ($found_column[$key] != $value) {
$compare_difference = array();
$compare_difference['type'] = "Column definition";
$compare_difference['table'] = $database_table['name'];
$compare_difference['column'] = $column['Field'];
$compare_difference[$nominal_name] = $key."=".$value;
$compare_difference[$actual_name] = $key."=".$found_column[$key];
$compare_differences[] = $compare_difference;
if ($verbose) {
echo($color_red."Difference:".$color_default." Column '".$column['Field']."' (".$key."=".$value.") from table '".$database_table['name']."' is different from '".$found_table['name']."' (".$key."=".$found_column[$key].") in CSV.\n");
}
}
}
unset($value);
} // $check_column_definitions
} else {
$compare_difference = array();
$compare_difference['type'] = "Column existance";
$compare_difference['table'] = $database_table['name'];
$compare_difference[$nominal_name] = $column['Field'];
$compare_differences[] = $compare_difference;
if ($verbose) {
echo($color_red."Difference:".$color_default." Column '".$column['Field']."' from table '".$database_table['name']."' in table '".$found_table['name']."' not found in CSV.\n");
}
}
}
unset($column);
} else {
$compare_difference = array();
$compare_difference['type'] = "Table existance";
$compare_difference[$nominal_name] = $database_table['name'];
$compare_differences[] = $compare_difference;
if ($verbose) {
echo($color_red."Difference:".$color_default." Table '".$database_table['name']."' not found in CSV '$tables_file_name'.\n");
}
}
}
unset($database_table);
return($compare_differences);
}
function info() {
echo("OpenXE database compare\n");
echo("Copyright 2022 (c) OpenXE project\n");
echo("\n");
echo("Export database structures in a defined format for database comparison / upgrade\n");
echo("Options:\n");
echo("\t-v: verbose output\n");
echo("\t-f: force override of existing files\n");
echo("\t-e: export database structure to files\n");
echo("\t-c: compare content of files with database structure\n");
echo("\t-i: ignore column definitions\n");
echo("\n");
}