由Mikro ORM执行的映射文件

Question

我是一个初学者，学习Mikro，我经常遇到一个问题，我的.map文件。我正在将我的typescript编译成javascript，然后用节点执行js。但是，当我使用节点执行javascript时，会遇到以下错误：

[query] begin
[query] select * from "mikro_orm_migrations" order by "id" asc [took 31 ms]
[query] select * from "mikro_orm_migrations" order by "id" asc [took 32 ms]
== Migration20210311015910.js: migrating =======
[query] rollback
/home/runner/fullstack-tut/dist/migrations/Migration20210311015910.js.map:1
{"version":3,"file":"Migration20210311015910.js","sourceRoot":"","sources":["../../src/migrations/Migration20210311015910.ts"],"names":[],"mappings":";;;;;;;;;;;;AAAA,sDAAkD;AAElD,MAAa,uBAAwB,SAAQ,sBAAS;IAE9C,EAAE;;YACN,IAAI,CAAC,MAAM,CAAC,mJAAmJ,CAAC,CAAC;QACnK,CAAC;KAAA;CAEF;AAND,0DAMC"}
          ^

SyntaxError: Unexpected token ':'
    at wrapSafe (internal/modules/cjs/loader.js:915:16)
    at Module._compile (internal/modules/cjs/loader.js:963:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Migrator.resolve (/home/runner/fullstack-tut/node_modules/@mikro-orm/migrations/Migrator.js:141:27)
    at Object.customResolver (/home/runner/fullstack-tut/node_modules/@mikro-orm/migrations/Migrator.js:43:44)
    at Migration.migration (/home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:60:38)
    at /home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:121:37
    at Generator.next (<anonymous>)
    at asyncGeneratorStep (/home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:9:103)
    at _next (/home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:11:194)
    at /home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:11:364
    at new Promise (<anonymous>)

[query] rollback
/home/runner/fullstack-tut/dist/migrations/Migration20210311015910.js.map:1
{"version":3,"file":"Migration20210311015910.js","sourceRoot":"","sources":["../../src/migrations/Migration20210311015910.ts"],"names":[],"mappings":";;;;;;;;;;;;AAAA,sDAAkD;AAElD,MAAa,uBAAwB,SAAQ,sBAAS;IAE9C,EAAE;;YACN,IAAI,CAAC,MAAM,CAAC,mJAAmJ,CAAC,CAAC;QACnK,CAAC;KAAA;CAEF;AAND,0DAMC"}
          ^

SyntaxError: Unexpected token ':'
    at wrapSafe (internal/modules/cjs/loader.js:915:16)
    at Module._compile (internal/modules/cjs/loader.js:963:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Migrator.resolve (/home/runner/fullstack-tut/node_modules/@mikro-orm/migrations/Migrator.js:141:27)
    at Object.customResolver (/home/runner/fullstack-tut/node_modules/@mikro-orm/migrations/Migrator.js:43:44)
    at Migration.migration (/home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:60:38)
    at /home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:121:37
    at Generator.next (<anonymous>)
    at asyncGeneratorStep (/home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:9:103)
    at _next (/home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:11:194)
    at /home/runner/fullstack-tut/node_modules/umzug/lib/migration.js:11:364
    at new Promise (<anonymous>)

目前，我刚刚删除了这些map文件，但我不认为这是一个解决方案，让我继续下去。我已经搜索这个问题好几个小时了，在StackOverflow上也没有找到这样的问题。谢谢!

Answer 1

您的ORM配置不正确，这是基于migrations.pattern配置的，显然您正在重写默认值(/^[\w-]+\d+\.ts$/)，使之也允许映射文件。

看到这样的问题很有趣，虽然你没有分享你的ORM配置(在这里你肯定已经超越了很多事情)。

对于JS文件，您应该执行类似于/^[\w-]+\d+\.js$/的操作。只要您知道JS和TS文件永远不会相邻(因此您在不同的文件夹中有源和dist )，您也可以执行/^[\w-]+\d+\.[jt]s$/。

在regexp.的末尾，您很可能缺少。