Invalid module name for proto files with dashes or dots in name

[anatolym]

Description

When a protobuf service consists of several files, and some files have special chars in their names like . or -, the generated TS code has invalid import instructions.

Affected version

https://github.com/grpc-ecosystem/protoc-gen-grpc-gateway-ts/releases/tag/v1.1.2

Reproduce steps

• Prepare the env

git clone git@github.com:grpc-ecosystem/protoc-gen-grpc-gateway-ts.git && \
  cd protoc-gen-grpc-gateway-ts && \
  git checkout v1.1.2 && \
  go install . && \
  mkdir -p tmp/generated && \
  cd tmp

• Create a new proto service with files files service.proto and product-models.proto.

// src: ./service.proto
syntax = "proto3";

package myservice;

import "google/api/annotations.proto";

import "product-models.proto";

service MyService {
  rpc GetProducts(GetProductReuest) returns (GetProductResponse) {
    option (google.api.http) = {
      post: "/products"
      body: "*"
    };
  }
}

message GetProductReuest {
  repeated int64 ids = 1;
}

message GetProductResponse {
  repeated Product products = 1;
}

// src: ./product-models.proto
syntax = "proto3";

package myservice;

message Product {
  string name = 1;
  string description = 2;
}

• Generate TS

protoc --grpc-gateway-ts_out=./generated \
  --grpc-gateway-ts_opt=use_proto_names=true,logtostderr=true,loglevel=debug \
  -I . \
  -I ../integration_tests \
  *.proto

• Observe invalid import name MyserviceProduct-models in tmp/generated/service.pb.ts:

/* eslint-disable */
// @ts-nocheck
/*
* This file is a generated Typescript file for GRPC Gateway, DO NOT MODIFY
*/

import * as fm from "./fetch.pb"
import * as MyserviceProduct-models from "./product-models.pb"
export type GetProductReuest = {
  ids?: string[]
}

export type GetProductResponse = {
  products?: MyserviceProduct-models.Product[]
}

export class MyService {
  static GetProducts(req: GetProductReuest, initReq?: fm.InitReq): Promise<GetProductResponse> {
    return fm.fetchReq<GetProductReuest, GetProductResponse>(`/products`, {...initReq, method: "POST", body: JSON.stringify(req, fm.replacer)})
  }
}