scala-cli script for development (#420)

* `scala-cli` script for development

For scala-cli developers. Useful if you need a scala-cli exec that builds and runs code

* Update scala-cli-src

Co-authored-by: Alexandre Archambault <[email protected]>

* Update scala-cli-src

Co-authored-by: Alexandre Archambault <[email protected]>

* set -e

Co-authored-by: Alexandre Archambault <[email protected]>

Author: tpasternak

README.md

@@ -165,4 +165,9 @@ To debug failing document, Sclicheck has build-in following options: `--step` (s
 
 ## Scala CLI logos
 
-Package with various logos for scala-cli can be found on [google drive](https://drive.google.com/drive/u/1/folders/1M6JeQXmO4DTBeRBKAFJ5HH2p_hbfQnqS)
+Package with various logos for scala-cli can be found on [google drive](https://drive.google.com/drive/u/1/folders/1M6JeQXmO4DTBeRBKAFJ5HH2p_hbfQnqS)
+
+## Launcher script
+
+There is a script `scala-cli-src` in the repository root that is intended to work exactly like released scala-cli, but using a binary compiled the worktree.
+Just add it to your PATH to get the already-released-scala-cli experience.

scala-cli-src

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
+ROOT_DIR="$SCRIPT_DIR"
+(
+   cd "$ROOT_DIR" || exit
+   ./mill cli.standaloneLauncher
+)
+exec "$ROOT_DIR/out/cli/standaloneLauncher/dest/launcher" "$@"