default install location outside the workspace (#130)

Author: mxcl

action.js

@@ -7,9 +7,7 @@ const os = require("os")
 async function go() {
   process.stderr.write("determining latest tea version…\n")
 
-  const HOMEDIR = process.env['GITHUB_WORKSPACE'] || os.homedir()
-
-  const PREFIX = process.env['INPUT_PREFIX'] || `${HOMEDIR}/opt`
+  const PREFIX = process.env['INPUT_PREFIX'] || `${os.homedir()}/.tea`
   const TEA_DIR = (() => {
     let TEA_DIR = process.env['INPUT_SRCROOT']
     if (!TEA_DIR) return

action.yml

@@ -4,9 +4,8 @@ description: >
 inputs:
   prefix:
     description: >
-      Where tea installs.
-      Set to `null` to install to the tea default (~/.tea).
-      For GHA we default to `~/opt`.
+      Where tea stows its packages.
+      Defaults to `$HOME/.tea`.
     required: false
   version:
     description: >