├── composer.json
├── phpunit.xml
├── README.md
├── LICENSE
└── src
└── SqlDiff.php
/composer.json:
--------------------------------------------------------------------------------
1 | {
2 | "name": "yurunsoft/sql-diff",
3 | "LICENSE": "GPL-2.0",
4 | "require": {
5 | "phpmyadmin/sql-parser": "~5.7"
6 | },
7 | "require-dev": {
8 | "friendsofphp/php-cs-fixer": "~3.4.0",
9 | "phpstan/phpstan": "~1.8.0",
10 | "phpunit/phpunit": "~9.6"
11 | },
12 | "autoload": {
13 | "psr-4": {
14 | "Yurun\\SqlDiff\\": "src/"
15 | }
16 | },
17 | "scripts": {
18 | "test": "@php vendor/bin/phpunit -c ./phpunit.xml"
19 | }
20 | }
--------------------------------------------------------------------------------
/phpunit.xml:
--------------------------------------------------------------------------------
1 |
2 |
10 |
11 |
12 | tests
13 |
14 |
15 |
16 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # sql-diff
2 |
3 | [](https://packagist.org/packages/yurunsoft/sql-diff)
4 | [](https://secure.php.net/)
5 | [](https://github.com/yurunsoft/sql-diff/blob/master/LICENSE)
6 |
7 | ## 介绍
8 |
9 | 本项目实现了比较 MySQL 建表语句的差异,并生成结构同步代码,功能类似 Navicat 的结构同步。
10 |
11 | **支持:**
12 |
13 | * [x] 表选项(注释、引擎等)
14 |
15 | * [x] 字段
16 |
17 | * [x] 索引
18 |
19 | * [x] 外键
20 |
21 | * [x] 分区
22 |
23 | * [x] 视图
24 |
25 | ## 安装
26 |
27 | `composer require yurunsoft/sql-diff`
28 |
29 | ## 使用说明
30 |
31 | ```php
32 | $sql1 = <<= 7.4
55 |
56 | ## 版权信息
57 |
58 | 本项目依赖 [phpmyadmin/sql-parser](https://github.com/phpmyadmin/sql-parser),所以开源协议受到污染,必须是 GPL-2.0,所有基于本项目的代码都要开源。
59 |
60 | 建议开发成轻量的功能单一的,独立脚本、工具、服务,并开源,这样就不违反开源协议了。
61 |
62 | ## 捐赠
63 |
64 |
65 |
66 | 开源不求盈利,多少都是心意,生活不易,随缘随缘……
67 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
/src/SqlDiff.php:
--------------------------------------------------------------------------------
1 |
24 | */
25 | private array $oldTableStatements = [];
26 |
27 | /**
28 | * @var array
29 | */
30 | private array $newTableStatements = [];
31 |
32 | public const INDEX_TYPES = ['INDEX', 'PRIMARY KEY'];
33 |
34 | public const FOREIGN_KEY_TYPE = 'FOREIGN KEY';
35 |
36 | public const INT_TYPES = ['INT', 'SMALLINT', 'TINYINT', 'MEDIUMINT', 'BIGINT', 'YEAR'];
37 |
38 | public static function diff(string $oldSql, string $newSql): array
39 | {
40 | return (new self($oldSql, $newSql))->getDiffSqls();
41 | }
42 |
43 | public function __construct(string $oldSql, string $newSql)
44 | {
45 | $this->oldParser = new Parser($oldSql);
46 | $this->newParser = new Parser($newSql);
47 | foreach ($this->oldParser->statements as $statement)
48 | {
49 | if ($statement instanceof CreateStatement)
50 | {
51 | $this->oldTableStatements[$statement->name->__toString()] = $statement;
52 | }
53 | }
54 | foreach ($this->newParser->statements as $statement)
55 | {
56 | if ($statement instanceof CreateStatement)
57 | {
58 | $this->newTableStatements[$statement->name->__toString()] = $statement;
59 | }
60 | }
61 | }
62 |
63 | public function getDiffSqls(): array
64 | {
65 | return array_merge(
66 | $this->getDropTableSqls(),
67 | $this->getCreateTableSqls(),
68 | $this->getAlterTableSqls(),
69 | $this->getDropViewSqls(),
70 | $this->getCreateViewSqls(),
71 | $this->getAlterViewSqls(),
72 | );
73 | }
74 |
75 | public function getDropTableSqls(): array
76 | {
77 | $sqls = [];
78 | foreach (array_diff_key($this->oldTableStatements, $this->newTableStatements) as $key => $_)
79 | {
80 | if (!$this->oldTableStatements[$key]->options->has('VIEW'))
81 | {
82 | $sqls[] = 'DROP TABLE ' . $this->oldTableStatements[$key]->name;
83 | }
84 | }
85 |
86 | return $sqls;
87 | }
88 |
89 | public function getCreateTableSqls(): array
90 | {
91 | $sqls = [];
92 | /** @var CreateStatement $statement */
93 | foreach (array_diff_key($this->newTableStatements, $this->oldTableStatements) as $statement)
94 | {
95 | if (!$statement->options->has('VIEW'))
96 | {
97 | $sqls[] = $statement->__toString();
98 | }
99 | }
100 |
101 | return $sqls;
102 | }
103 |
104 | public function getAlterTableSqls(): array
105 | {
106 | $sqls = [];
107 | foreach (array_intersect_key($this->oldTableStatements, $this->newTableStatements) as $key => $_)
108 | {
109 | $oldStatement = $this->oldTableStatements[$key];
110 | $newStatement = $this->newTableStatements[$key];
111 | if (!$this->oldTableStatements[$key]->options->has('VIEW'))
112 | {
113 | // 索引
114 | $indexesSqls = $this->getIndexesDiffSqls($oldStatement, $newStatement);
115 | // 外键
116 | $constraintSqls = $this->getConstraintDiffSqls($oldStatement, $newStatement);
117 | $sqls = array_merge($sqls,
118 | // 表
119 | $this->getTableOptionsSqls($oldStatement, $newStatement),
120 | $constraintSqls['drop'],
121 | $indexesSqls['drop'],
122 | // 字段
123 | $this->getFieldsDiffSqls($oldStatement, $newStatement),
124 | $indexesSqls['add'],
125 | $constraintSqls['add'],
126 | // 分区
127 | $this->getPartitionDiffSqls($oldStatement, $newStatement),
128 | );
129 | }
130 | }
131 |
132 | return $sqls;
133 | }
134 |
135 | public function getDropViewSqls(): array
136 | {
137 | $sqls = [];
138 | foreach (array_diff_key($this->oldTableStatements, $this->newTableStatements) as $key => $_)
139 | {
140 | if ($this->oldTableStatements[$key]->options->has('VIEW'))
141 | {
142 | $sqls[] = 'DROP VIEW ' . $this->oldTableStatements[$key]->name;
143 | }
144 | }
145 |
146 | return $sqls;
147 | }
148 |
149 | public function getCreateViewSqls(): array
150 | {
151 | $sqls = [];
152 | /** @var CreateStatement $statement */
153 | foreach (array_diff_key($this->newTableStatements, $this->oldTableStatements) as $statement)
154 | {
155 | if ($statement->options->has('VIEW'))
156 | {
157 | $sqls[] = $statement->__toString();
158 | }
159 | }
160 |
161 | return $sqls;
162 | }
163 |
164 | public function getAlterViewSqls(): array
165 | {
166 | $sqls = [];
167 | foreach (array_intersect_key($this->oldTableStatements, $this->newTableStatements) as $key => $_)
168 | {
169 | $oldStatement = $this->oldTableStatements[$key];
170 | $newStatement = $this->newTableStatements[$key];
171 | if ($this->oldTableStatements[$key]->options->has('VIEW'))
172 | {
173 | if ($newStatement->__toString() !== $oldStatement->__toString())
174 | {
175 | if (!$newStatement->options->has('OR REPLACE'))
176 | {
177 | $newOptions = $newStatement->options->options;
178 | array_unshift($newOptions, 'OR REPLACE');
179 | $newStatement->options = new OptionsArray($newOptions);
180 | }
181 | $sqls[] = $newStatement->__toString();
182 | }
183 | }
184 | }
185 |
186 | return $sqls;
187 | }
188 |
189 | public function getTableOptionsSqls(CreateStatement $oldStatement, CreateStatement $newStatement): array
190 | {
191 | $options = [];
192 | foreach ($newStatement->entityOptions->options as $option)
193 | {
194 | $oldExpr = $oldStatement->entityOptions->has($option['name'], true);
195 | if ($option['expr'] !== $oldExpr)
196 | {
197 | if ('DEFAULT CHARSET' === $option['name'] && (('utf8' === $option['expr'] && 'utf8mb3' === $oldExpr) || ('utf8mb3' === $option['expr'] && 'utf8' === $oldExpr)))
198 | {
199 | continue;
200 | }
201 | $options[] = $option;
202 | }
203 | }
204 | if ($options)
205 | {
206 | $alterStatement = new AlterStatement();
207 | $alterStatement->options = new OptionsArray(['TABLE']);
208 | $alterStatement->table = $oldStatement->name;
209 | $alterOperation = new AlterOperation(new OptionsArray($options));
210 | $alterStatement->altered[] = $alterOperation;
211 |
212 | return [$alterStatement->__toString()];
213 | }
214 |
215 | return [];
216 | }
217 |
218 | /**
219 | * @return array{drop: string[], add: string[]}
220 | */
221 | public function getIndexesDiffSqls(CreateStatement $oldStatement, CreateStatement $newStatement): array
222 | {
223 | $sqls = [
224 | 'drop' => [],
225 | 'add' => [],
226 | ];
227 | $oldIndexes = [];
228 | // 删除字段
229 | foreach ($oldStatement->fields as $fieldOld)
230 | {
231 | if (!$fieldOld->key || !\in_array($fieldOld->key->type, self::INDEX_TYPES))
232 | {
233 | continue;
234 | }
235 | $oldIndexes[] = $fieldOld->name;
236 | foreach ($newStatement->fields as $field)
237 | {
238 | if (!$field->key || !\in_array($field->key->type, self::INDEX_TYPES))
239 | {
240 | continue;
241 | }
242 | if ($fieldOld->key->name === $field->key->name)
243 | {
244 | continue 2;
245 | }
246 | }
247 | $alterStatement = new AlterStatement();
248 | $alterStatement->options = new OptionsArray(['TABLE']);
249 | $alterStatement->table = $oldStatement->name;
250 | $alterOperation = new AlterOperation(new OptionsArray(['DROP', $fieldOld->key->type]), new Expression(null, null, $fieldOld->key->name));
251 | $alterStatement->altered[] = $alterOperation;
252 | $sqls['drop'][] = $alterStatement->__toString();
253 | }
254 |
255 | // 修改字段
256 | foreach ($oldStatement->fields as $fieldOld)
257 | {
258 | if (!$fieldOld->key || !\in_array($fieldOld->key->type, self::INDEX_TYPES))
259 | {
260 | continue;
261 | }
262 | foreach ($newStatement->fields as $field)
263 | {
264 | if (!$field->key || !\in_array($field->key->type, self::INDEX_TYPES))
265 | {
266 | continue;
267 | }
268 | if ($fieldOld->key->name === $field->key->name)
269 | {
270 | if ($field->__toString() !== $fieldOld->__toString())
271 | {
272 | $alterStatement = new AlterStatement();
273 | $alterStatement->options = new OptionsArray(['TABLE']);
274 | $alterStatement->table = $oldStatement->name;
275 | $alterOperation = new AlterOperation(new OptionsArray(['DROP', $fieldOld->key->type]), new Expression(null, null, $fieldOld->key->name));
276 | $alterStatement->altered[] = $alterOperation;
277 | $alterOperation = new AlterOperation(new OptionsArray(['ADD']), $field);
278 | $alterStatement->altered[] = $alterOperation;
279 | $sqls['add'][] = $alterStatement->__toString();
280 | }
281 | break;
282 | }
283 | }
284 | }
285 |
286 | // 新增字段
287 | foreach ($newStatement->fields as $field)
288 | {
289 | if (!$field->key || !\in_array($field->key->type, self::INDEX_TYPES))
290 | {
291 | continue;
292 | }
293 | foreach ($oldStatement->fields as $fieldOld)
294 | {
295 | if (!$fieldOld->key || !\in_array($fieldOld->key->type, self::INDEX_TYPES))
296 | {
297 | continue;
298 | }
299 | if ($fieldOld->key->name === $field->key->name)
300 | {
301 | continue 2;
302 | }
303 | }
304 |
305 | $alterStatement = new AlterStatement();
306 | $alterStatement->options = new OptionsArray(['TABLE']);
307 | $alterStatement->table = $oldStatement->name;
308 | $alterOperation = new AlterOperation(new OptionsArray(['ADD']), $field);
309 | $alterStatement->altered[] = $alterOperation;
310 | $sqls['add'][] = $alterStatement->__toString();
311 | }
312 |
313 | return $sqls;
314 | }
315 |
316 | public function getFieldsDiffSqls(CreateStatement $oldStatement, CreateStatement $newStatement): array
317 | {
318 | $sqls = [];
319 | $oldFields = [];
320 | // 删除字段
321 | foreach ($oldStatement->fields as $fieldOld)
322 | {
323 | if (!$fieldOld->type)
324 | {
325 | continue;
326 | }
327 | $oldFields[] = $fieldOld->name;
328 | foreach ($newStatement->fields as $field)
329 | {
330 | if (!$field->type)
331 | {
332 | continue;
333 | }
334 | if ($fieldOld->name === $field->name)
335 | {
336 | continue 2;
337 | }
338 | }
339 | $alterStatement = new AlterStatement();
340 | $alterStatement->options = new OptionsArray(['TABLE']);
341 | $alterStatement->table = $oldStatement->name;
342 | $alterOperation = new AlterOperation(new OptionsArray(['DROP', 'COLUMN']), new Expression(null, null, $fieldOld->name));
343 | $alterStatement->altered[] = $alterOperation;
344 | $sqls[] = $alterStatement->__toString();
345 | }
346 |
347 | // 修改字段
348 | foreach ($oldStatement->fields as $indexOld => $fieldOld)
349 | {
350 | if (!$fieldOld->type)
351 | {
352 | continue;
353 | }
354 | foreach ($newStatement->fields as $index => $field)
355 | {
356 | if (!$field->type)
357 | {
358 | continue;
359 | }
360 | if ($fieldOld->name === $field->name)
361 | {
362 | if ($field->__toString() !== $fieldOld->__toString())
363 | {
364 | // ---兼容处理开始---
365 | // MySQL 8.0 对 INT 类型的长度失效兼容
366 | $parametersBackup = $field->type->parameters;
367 | $parametersBackupOld = $fieldOld->type->parameters;
368 | if (\in_array($field->type->name, self::INT_TYPES) && \in_array($fieldOld->type->name, self::INT_TYPES))
369 | {
370 | $field->type->parameters = $fieldOld->type->parameters = [];
371 | }
372 | // MySQL 8.0 对 CHARACTER SET 的兼容
373 | $optionsBackup = $field->type->options->options;
374 | $optionsBackupOld = $fieldOld->type->options->options;
375 | if ($field->type->options->has('COLLATE') === $fieldOld->type->options->has('COLLATE') && (!$field->type->options->has('CHARACTER SET') || !$fieldOld->type->options->has('CHARACTER SET')))
376 | {
377 | $field->type->options->remove('CHARACTER SET');
378 | $fieldOld->type->options->remove('CHARACTER SET');
379 | }
380 | $equals = $field->__toString() === $fieldOld->__toString();
381 | $field->type->parameters = $parametersBackup;
382 | $fieldOld->type->parameters = $parametersBackupOld;
383 | $field->type->options = new OptionsArray($optionsBackup);
384 | $fieldOld->type->options->options = new OptionsArray($optionsBackupOld);
385 | if ($equals)
386 | {
387 | break;
388 | }
389 | // ---兼容处理结束---
390 | $alterStatement = new AlterStatement();
391 | $alterStatement->options = new OptionsArray(['TABLE']);
392 | $alterStatement->table = $oldStatement->name;
393 | $alterOperation = new AlterOperation(new OptionsArray(['MODIFY', 'COLUMN']), $field);
394 | if ($indexOld !== $index)
395 | {
396 | if (0 === $index)
397 | {
398 | $alterOperation->unknown[] = new Token('FIRST');
399 | }
400 | else
401 | {
402 | for ($i = $index - 1; $i >= 0; --$i)
403 | {
404 | if (\in_array($newStatement->fields[$i]->name, $oldFields))
405 | {
406 | $alterOperation->unknown[] = new Token('AFTER');
407 | $alterOperation->unknown[] = new Token(' ');
408 | $alterOperation->unknown[] = new Token((new Expression(null, null, $newStatement->fields[$i]->name))->__toString());
409 | break;
410 | }
411 | }
412 | }
413 | }
414 | $alterStatement->altered[] = $alterOperation;
415 | $sqls[] = $alterStatement->__toString();
416 | }
417 | break;
418 | }
419 | }
420 | }
421 |
422 | // 新增字段
423 | foreach ($newStatement->fields as $index => $field)
424 | {
425 | if (!$field->type)
426 | {
427 | continue;
428 | }
429 | foreach ($oldStatement->fields as $fieldOld)
430 | {
431 | if (!$fieldOld->type)
432 | {
433 | continue;
434 | }
435 | if ($fieldOld->name === $field->name)
436 | {
437 | continue 2;
438 | }
439 | }
440 |
441 | $alterStatement = new AlterStatement();
442 | $alterStatement->options = new OptionsArray(['TABLE']);
443 | $alterStatement->table = $oldStatement->name;
444 | $alterOperation = new AlterOperation(new OptionsArray(['ADD', 'COLUMN']), $field);
445 | if (0 === $index)
446 | {
447 | $alterOperation->unknown[] = new Token('FIRST');
448 | }
449 | else
450 | {
451 | $alterOperation->unknown[] = new Token('AFTER');
452 | $alterOperation->unknown[] = new Token(' ');
453 | $alterOperation->unknown[] = new Token((new Expression(null, null, $newStatement->fields[$index - 1]->name))->__toString());
454 | }
455 | $alterStatement->altered[] = $alterOperation;
456 | $sqls[] = $alterStatement->__toString();
457 | }
458 |
459 | return $sqls;
460 | }
461 |
462 | /**
463 | * @return array{drop: string[], add: string[]}
464 | */
465 | public function getConstraintDiffSqls(CreateStatement $oldStatement, CreateStatement $newStatement): array
466 | {
467 | $sqls = [
468 | 'drop' => [],
469 | 'add' => [],
470 | ];
471 | $oldFields = [];
472 | // 删除字段
473 | foreach ($oldStatement->fields as $fieldOld)
474 | {
475 | if (!$fieldOld->key || self::FOREIGN_KEY_TYPE !== $fieldOld->key->type)
476 | {
477 | continue;
478 | }
479 | $oldFields[] = $fieldOld->name;
480 | foreach ($newStatement->fields as $field)
481 | {
482 | if (!$field->key || self::FOREIGN_KEY_TYPE !== $field->key->type)
483 | {
484 | continue;
485 | }
486 | if ($fieldOld->name === $field->name)
487 | {
488 | continue 2;
489 | }
490 | }
491 | $alterStatement = new AlterStatement();
492 | $alterStatement->options = new OptionsArray(['TABLE']);
493 | $alterStatement->table = $oldStatement->name;
494 | $alterOperation = new AlterOperation(new OptionsArray(['DROP', self::FOREIGN_KEY_TYPE]), new Expression(null, null, $fieldOld->name));
495 | $alterStatement->altered[] = $alterOperation;
496 | $sqls['drop'][] = $alterStatement->__toString();
497 | }
498 |
499 | // 修改字段
500 | foreach ($oldStatement->fields as $fieldOld)
501 | {
502 | if (!$fieldOld->key || self::FOREIGN_KEY_TYPE !== $fieldOld->key->type)
503 | {
504 | continue;
505 | }
506 | foreach ($newStatement->fields as $field)
507 | {
508 | if (!$field->key || self::FOREIGN_KEY_TYPE !== $field->key->type)
509 | {
510 | continue;
511 | }
512 | if ($fieldOld->name === $field->name)
513 | {
514 | if ($field->__toString() !== $fieldOld->__toString())
515 | {
516 | $alterStatement = new AlterStatement();
517 | $alterStatement->options = new OptionsArray(['TABLE']);
518 | $alterStatement->table = $oldStatement->name;
519 | $alterOperation = new AlterOperation(new OptionsArray(['DROP', self::FOREIGN_KEY_TYPE]), new Expression(null, null, $fieldOld->name));
520 | $alterStatement->altered[] = $alterOperation;
521 | $sqls['drop'][] = $alterStatement->__toString();
522 |
523 | $alterStatement = new AlterStatement();
524 | $alterStatement->options = new OptionsArray(['TABLE']);
525 | $alterStatement->table = $oldStatement->name;
526 | $alterOperation = new AlterOperation(new OptionsArray(['ADD']), $field);
527 | $alterStatement->altered[] = $alterOperation;
528 | $sqls['add'][] = $alterStatement->__toString();
529 | }
530 | break;
531 | }
532 | }
533 | }
534 |
535 | // 新增字段
536 | foreach ($newStatement->fields as $field)
537 | {
538 | if (!$field->key || self::FOREIGN_KEY_TYPE !== $field->key->type)
539 | {
540 | continue;
541 | }
542 | foreach ($oldStatement->fields as $fieldOld)
543 | {
544 | if (!$fieldOld->key || self::FOREIGN_KEY_TYPE !== $fieldOld->key->type)
545 | {
546 | continue;
547 | }
548 | if ($fieldOld->name === $field->name)
549 | {
550 | continue 2;
551 | }
552 | }
553 |
554 | $alterStatement = new AlterStatement();
555 | $alterStatement->options = new OptionsArray(['TABLE']);
556 | $alterStatement->table = $oldStatement->name;
557 | $alterOperation = new AlterOperation(new OptionsArray(['ADD']), $field);
558 | $alterStatement->altered[] = $alterOperation;
559 | $sqls['add'][] = $alterStatement->__toString();
560 | }
561 |
562 | return $sqls;
563 | }
564 |
565 | public function getPartitionDiffSqls(CreateStatement $oldStatement, CreateStatement $newStatement): array
566 | {
567 | if ($oldStatement->partitionBy !== $newStatement->partitionBy || $oldStatement->partitionsNum !== $newStatement->partitionsNum || $oldStatement->subpartitionBy !== $newStatement->subpartitionBy || $oldStatement->subpartitionsNum !== $newStatement->subpartitionsNum || (($oldStatement->partitions ? PartitionDefinition::build($oldStatement->partitions) : '') !== ($newStatement->partitions ? PartitionDefinition::build($newStatement->partitions) : '')))
568 | {
569 | $sql = '';
570 |
571 | if (!empty($newStatement->partitionBy))
572 | {
573 | $sql .= "\nPARTITION BY " . $newStatement->partitionBy;
574 | }
575 |
576 | if (!empty($newStatement->partitionsNum))
577 | {
578 | $sql .= "\nPARTITIONS " . $newStatement->partitionsNum;
579 | }
580 |
581 | if (!empty($newStatement->subpartitionBy))
582 | {
583 | $sql .= "\nSUBPARTITION BY " . $newStatement->subpartitionBy;
584 | }
585 |
586 | if (!empty($newStatement->subpartitionsNum))
587 | {
588 | $sql .= "\nSUBPARTITIONS " . $newStatement->subpartitionsNum;
589 | }
590 |
591 | if (!empty($newStatement->partitions))
592 | {
593 | $sql .= "\n" . PartitionDefinition::build($newStatement->partitions);
594 | }
595 |
596 | if ($sql)
597 | {
598 | $alterStatement = new AlterStatement();
599 | $alterStatement->options = new OptionsArray(['TABLE']);
600 | $alterStatement->table = $oldStatement->name;
601 | $alterOperation = new AlterOperation(new OptionsArray([$sql]));
602 | $alterStatement->altered[] = $alterOperation;
603 |
604 | return [$alterStatement->__toString()];
605 | }
606 | }
607 |
608 | return [];
609 | }
610 | }
611 |
--------------------------------------------------------------------------------