fix: cross-platform openapi generation script

Author: zone117x

client/package-lock.json

@@ -7,7 +7,7 @@
   "scripts": {
     "build": "rimraf ./lib && tsc",
     "test": "ts-node src/test.ts",
-    "prep-openapi": "swagger-cli bundle --dereference -o ./.tmp/openapi.json ../docs/openapi.yaml && sed -i.bak '/$schema/d' ./.tmp/openapi.json",
+    "prep-openapi": "rimraf ./.tmp && swagger-cli bundle --dereference -o ./.tmp/openapi.json ../docs/openapi.yaml && shx sed -i '^.*\\$schema.*$' '' ./.tmp/openapi.json",
     "generate-openapi": "npm run prep-openapi && openapi-generator generate --skip-validate-spec -g typescript-fetch --additional-properties=typescriptThreePlus=true,supportsES6=true,legacyDiscriminatorBehavior=false,enumPropertyNaming=original,modelPropertyNaming=original -i ./.tmp/openapi.json -o ./src/generated"
   },
   "author": "@blockstack",
@@ -23,6 +23,7 @@
     "@apidevtools/swagger-cli": "^4.0.4",
     "@openapitools/openapi-generator-cli": "^1.0.15-4.3.1",
     "rimraf": "^3.0.2",
+    "shx": "^0.3.2",
     "ts-node": "^8.10.2",
     "typescript": "^3.9.7"
   }