Support disabling dev-envs with srcroot: null

Author: mxcl

README.md

@@ -3,8 +3,7 @@
 * [`install.sh`](./install.sh) is delivered when you `curl tea.xyz`.
 * This repository also provides the `tea` GitHub Action.
 
-
-# GitHub Action 0.14.0
+# GitHub Action 0.15.0
 
 ```yaml
 - uses: teaxyz/setup@v0

action.js

@@ -102,7 +102,7 @@ async function go() {
   const GITHUB_OUTPUT = process.env['GITHUB_OUTPUT']
 
   const vv = parseFloat(v)
-  const env_flag = vv >= 0.19 ? '--env --keep-going' : '--env'
+  const env_flag = TEA_DIR ? vv >= 0.19 ? '--env --keep-going' : '--env' : ''
 
   // get env FIXME one call should do init
 
@@ -150,6 +150,7 @@ async function go() {
   }
 
   //TODO deprecated exe/md
+  //NOTE BUT LEAVE BECAUSE WE ONCE SUPPORTED THIS
   const target = process.env['INPUT_TARGET']
   if (target) {
     execSync(`${teafile} ${target}`, {stdio: "inherit", env})

action.yml

@@ -32,14 +32,11 @@ inputs:
     required: false
   srcroot:
     description: |
-      Override detection of `$SRCROOT`.
+      Override detection of the developer-environment’s `$SRCROOT`.
 
-      tea normally finds your `$SRCROOT` by looking for a `.git` directory.
-      However, if git is not installed the checkout action uses the GitHub
-      API to download the repository.
-
-      You will need this if you depend on the virtual environment tea
-      provides.
+      Set to `null` to disable the developer-environment.
+    default: .
+    required: false
 outputs:
   version:
     description: Your project’s version.