fix(cli): create directories when a path is specified in the --output option (#513)

Fixes #512

Author: brushmate

cli/index.ts

@@ -14,6 +14,7 @@ import * as zlib from 'zlib';
 import { createStore, loadAndBundleSpec, Redoc } from 'redoc';
 
 import { createReadStream, existsSync, readFileSync, ReadStream, watch, writeFileSync } from 'fs';
+import * as mkdirp from 'mkdirp';
 
 import * as YargsParser from 'yargs';
 
@@ -186,6 +187,7 @@ async function bundle(pathToSpec, options: Options = {}) {
   const spec = await loadAndBundleSpec(pathToSpec);
   const pageHTML = await getPageHTML(spec, pathToSpec, { ...options, ssr: true });
 
+  mkdirp.sync(dirname(options.output!));
   writeFileSync(options.output!, pageHTML);
   const sizeInKiB = Math.ceil(Buffer.byteLength(pageHTML) / 1024);
   const time = Date.now() - start;

cli/package.json

@@ -10,6 +10,7 @@
   "dependencies": {
     "handlebars": "^4.0.11",
     "isarray": "^2.0.4",
+    "mkdirp": "^0.5.1",
     "react": "^16.3.2",
     "react-dom": "^16.3.2",
     "redoc": "^2.0.0-alpha.20",
@@ -24,6 +25,7 @@
   },
   "devDependencies": {
     "@types/handlebars": "^4.0.36",
+    "@types/mkdirp": "^0.5.2",
     "ci-publish": "^1.3.1"
   }
-}
+}

cli/yarn.lock

@@ -6,6 +6,16 @@
   version "4.0.37"
   resolved "https://registry.yarnpkg.com/@types/handlebars/-/handlebars-4.0.37.tgz#a3bc3eba0c0f03f753cac00841a5b21e26a02c03"
 
+"@types/mkdirp@^0.5.2":
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/@types/mkdirp/-/mkdirp-0.5.2.tgz#503aacfe5cc2703d5484326b1b27efa67a339c1f"
+  dependencies:
+    "@types/node" "*"
+
+"@types/node@*":
+  version "10.1.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.1.3.tgz#5c16980936c4e3c83ce64e8ed71fb37bd7aea135"
+
 agent-base@2:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-2.1.1.tgz#d6de10d5af6132d5bd692427d46fc538539094c7"
@@ -1450,7 +1460,7 @@ minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
 
-mkdirp@^0.5.0:
+mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies: