add --cache-directory test and docs

Author: wclr

CHANGELOG.md

@@ -1,6 +1,10 @@
 ### Yalc changelog
 
-## 1.0.0-pre.62 (2020-09-22)
+## 1.0.0-pre.63 (2020-09-22)
+
+- fix --cache-directory flag
+
+## 1.0.0-pre.62 (2020-08-22)
 
 - fix child fork override
 

README.md

@@ -50,6 +50,7 @@ Look up flags and options can be used [in ts-node's docs](https://github.com/Typ
 * `--exit-child` - Adds 'SIGTERM' exit handler in a child process.
 * `--rs` - Allow to restart with "rs" line entered in stdio, disabled by default.
 * `--notify` - to display desktop-notifications (Notifications are only displayed if `node-notifier` is installed).
+* `--cache-directory` - tmp dir which  is used to keep the compiled sources
 
 If you need to detect that you are running with `ts-node-dev`, check if `process.env.TS_NODE_DEV` is set.
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ts-node-dev",
-  "version": "1.0.0-pre.62",
+  "version": "1.0.0-pre.63",
   "description": "Compiles your TS app and restarts when files are modified.",
   "keywords": [
     "restart",

test/tsnd.test.ts

@@ -336,4 +336,14 @@ describe('ts-node-dev', function () {
     await ps.exit()
     t.ok(true)
   })
+
+  it('should put compiled sources in custom --cache-directory', async () => {
+    const cacheDir = join(tmpDir, 'test-cached-dir')
+    fs.removeSync(cacheDir)
+    const ps = spawnTsNodeDev(`--cache-directory ${cacheDir} simple.ts`)
+    await ps.waitForLine(/v1/)
+    await ps.exit()
+    const list = fs.readdirSync(cacheDir)
+    t.ok(list[0] === 'compiled', '"compiled" dir is there')
+  })
 })