Move run-install to its own module

src/inputs/run-install.ts

@@ -0,0 +1,40 @@
+import process from 'process'
+import { safeLoad } from 'js-yaml'
+import Ajv from 'ajv'
+import { getInput, error, InputOptions } from '@actions/core'
+import runInstallSchema from './run-install-input.schema.json'
+
+export interface RunInstall {
+  readonly recursive?: boolean
+  readonly cwd?: string
+  readonly args?: readonly string[]
+}
+
+export type RunInstallInput =
+  | null
+  | boolean
+  | RunInstall
+  | RunInstall[]
+
+const options: InputOptions = {
+  required: true,
+}
+
+export function parseRunInstall(name: string): RunInstall[] {
+  const result: RunInstallInput = safeLoad(getInput(name, options))
+  const ajv = new Ajv({
+    allErrors: true,
+    async: false,
+  })
+  const validate = ajv.compile(runInstallSchema)
+  if (!validate(result)) {
+    for (const errorItem of validate.errors!) {
+      error(`with.run_install${errorItem.dataPath}: ${errorItem.message}`)
+    }
+    return process.exit(1)
+  }
+  if (!result) return []
+  if (result === true) return [{ recursive: true }]
+  if (Array.isArray(result)) return result
+  return [result]
+}