lb4 openapi generator returns ResolverError when main spec contains schemas in subfolders

[manchuwook]

Steps to reproduce

Created a default template OpenAPI spec using subfolders via Stoplight Studio

Current Behavior

command in models folder:
lb4 openapi --path ./models/openapi-spec.v1.json

Returns error:
Generation is aborted: ResolverError: Error opening file "c:\path\to\spec\models\subfolder-model.schema.v1.json"
ENOENT: no such file or directory, open 'c:\path\to\spec\models\subfolder-model.schema.v1.json'

Expected Behavior

I expect it to properly resolve relative links to the spec (not the src/root folder)

Link to reproduction sandbox

https://github.com/manchuwook/loopback-bug-subfolder for OpenAPI spec

[dhmlau]

@manchuwook, i believe you need to run it at the root of the LoopBack application.
When I run it inside the src folder, I got the same error as you. However, if I go back to the root folder and use lb4 openapi --url ./src/models/myopenapi.json, it works fine. Hope it helps.

[manchuwook]

I have been running it from the root of the loopback app. I first started by trying to refer to the schema by absolute path, then relative to the project, then copied the schema into a folder called "model"

None of these worked as intended.

[dhmlau]

What's your node.js version and the @loopback/cli version?

[manchuwook]

Sure!

lb4 --version

  - @loopback/authentication: ^7.0.5
  - @loopback/boot: ^3.1.2
  - @loopback/build: ^6.2.8
  - @loopback/context: ^3.13.2
  - @loopback/core: ^2.13.1
  - @loopback/metadata: ^3.0.5
  - @loopback/openapi-spec-builder: ^3.0.3   
  - @loopback/openapi-v3: ^5.1.2
  - @loopback/repository-json-schema: ^3.2.0 
  - @loopback/repository: ^3.3.0
  - @loopback/rest: ^9.1.1
  - @loopback/testlab: ^3.2.10
  - @loopback/docs: ^3.20.0
  - @loopback/example-hello-world: ^2.1.15   
  - @loopback/example-log-extension: ^2.1.15 
  - @loopback/example-rpc-server: ^2.1.15    
  - @loopback/example-todo: ^3.9.2
  - @loopback/example-soap-calculator: ^2.4.8
  - @loopback/service-proxy: ^3.0.5
  - @loopback/http-caching-proxy: ^2.1.19    
  - @loopback/http-server: ^2.3.3
  - @loopback/example-todo-list: ^3.7.0      
  - @loopback/dist-util: ^0.4.0
  - @loopback/rest-explorer: ^3.0.5
  - @loopback/eslint-config: ^10.0.4
  - @loopback/example-express-composition: ^2.5.3
  - @loopback/example-greeter-extension: ^2.1.15
  - @loopback/booter-lb3app: ^2.2.15
  - @loopback/example-lb3-application: ^2.5.3
  - @loopback/example-greeting-app: ^2.2.13
  - @loopback/example-context: ^2.1.15
  - @loopback/repository-tests: ^0.15.0
  - @loopback/health: ^0.6.2
  - @loopback/authorization: ^0.7.5
  - @loopback/rest-crud: ^0.8.19
  - @loopback/security: ^0.3.5
  - @loopback/authentication-passport: ^3.0.5
  - @loopback/example-metrics-prometheus: ^0.4.5
  - @loopback/metrics: ^0.5.2
  - @loopback/model-api-builder: ^2.1.19
  - @loopback/logging: ^0.4.5
  - @loopback/example-access-control-migration: ^2.3.3
  - @loopback/example-file-transfer: ^1.5.8
  - @loopback/example-rest-crud: ^1.7.3
  - @loopback/apiconnect: ^0.5.5
  - @loopback/example-validation-app: ^1.8.3
  - @loopback/cron: ^0.3.5
  - @loopback/example-multi-tenancy: ^0.7.3
  - @loopback/example-passport-login: ^1.9.0
  - @loopback/authentication-jwt: ^0.7.5
  - @loopback/context-explorer: ^0.2.5
  - @loopback/express: ^3.1.1
  - @loopback/example-todo-jwt: ^1.4.3
  - @loopback/mock-oauth2-provider: ^0.1.13
  - @loopback/pooling: ^0.3.5
  - @loopback/typeorm: ^0.2.5
  - @loopback/example-graphql: ^0.1.5
  - @loopback/graphql: ^0.2.3
  - @loopback/filter: ^1.3.0
  - @loopback/rest-msgpack: ^0.2.4
  - @loopback/example-binding-resolution: ^0.1.3
  - @loopback/example-webpack: ^0.2.2
  - @loopback/example-socketio: ^0.1.2
  - @loopback/socketio: ^0.1.2
  - @loopback/monorepo: ^0.1.2

node --version

v12.12.0

npm view @loopback/cli

@loopback/cli@2.17.2 | MIT | deps: 40 | versions: 198
Yeoman generator for LoopBack 4
https://github.com/strongloop/loopback-next/tree/master/packages/cli

[manchuwook]

Tested this with 2.19.0 - still have the same issue:

? Enter the OpenAPI spec url or file path: S:\dev\project\api-design\project.player.v1.json
Loading S:\dev\project\api-design\project.player.v1.json...
Generation is aborted: ResolverError: Error opening file "S:\dev\project\api-design\lb\lb\models\character.schema.v1.json" 
ENOENT: no such file or directory, open 'S:\dev\project\api-design\lb\lb\models\character.schema.v1.json'

The file is present as S:\dev\project\api-design\models\character.schema.v1.json

Note that I can get around this by bundling my API, but it creates a bunch of unnecessary/duplicated classes and muddies everything.

[manchuwook]

I'm ending up building a yaml or json file using openapi-generator-cli and then generating controllers/models from that intermediary file instead.

[stale]

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