moved validate to backend-core to be used in server and cli

packages/backend-core/plugins.js

@@ -0,0 +1,3 @@
+module.exports = {
+  ...require("./src/plugin"),
+}

packages/backend-core/src/plugin/index.ts

@@ -0,0 +1 @@
+export * from "./utils"

packages/backend-core/src/plugin/utils.js

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+const {
+  DatasourceFieldType,
+  QueryType,
+  PluginType,
+} = require("@budibase/types")
+const joi = require("joi")
+
+const DATASOURCE_TYPES = [
+  "Relational",
+  "Non-relational",
+  "Spreadsheet",
+  "Object store",
+  "Graph",
+  "API",
+]
+
+function runJoi(validator, schema) {
+  const { error } = validator.validate(schema)
+  if (error) {
+    throw error
+  }
+}
+
+function validateComponent(schema) {
+  const validator = joi.object({
+    type: joi.string().allow("component").required(),
+    metadata: joi.object().unknown(true).required(),
+    hash: joi.string().optional(),
+    version: joi.string().optional(),
+    schema: joi
+      .object({
+        name: joi.string().required(),
+        settings: joi.array().items(joi.object().unknown(true)).required(),
+      })
+      .unknown(true),
+  })
+  runJoi(validator, schema)
+}
+
+function validateDatasource(schema) {
+  const fieldValidator = joi.object({
+    type: joi
+      .string()
+      .allow(...Object.values(DatasourceFieldType))
+      .required(),
+    required: joi.boolean().required(),
+    default: joi.any(),
+    display: joi.string(),
+  })
+
+  const queryValidator = joi
+    .object({
+      type: joi.string().allow(...Object.values(QueryType)),
+      fields: joi.object().pattern(joi.string(), fieldValidator),
+    })
+    .required()
+
+  const validator = joi.object({
+    type: joi.string().allow("datasource").required(),
+    metadata: joi.object().unknown(true).required(),
+    hash: joi.string().optional(),
+    version: joi.string().optional(),
+    schema: joi.object({
+      docs: joi.string(),
+      friendlyName: joi.string().required(),
+      type: joi.string().allow(...DATASOURCE_TYPES),
+      description: joi.string().required(),
+      datasource: joi.object().pattern(joi.string(), fieldValidator).required(),
+      query: joi
+        .object({
+          create: queryValidator,
+          read: queryValidator,
+          update: queryValidator,
+          delete: queryValidator,
+        })
+        .unknown(true)
+        .required(),
+    }),
+  })
+  runJoi(validator, schema)
+}
+
+exports.validate = schema => {
+  switch (schema?.type) {
+    case PluginType.COMPONENT:
+      validateComponent(schema)
+      break
+    case PluginType.DATASOURCE:
+      validateDatasource(schema)
+      break
+    default:
+      throw new Error(`Unknown plugin type - check schema.json: ${schema.type}`)
+  }
+}