From c072b46f4d89df8486d1ab8c38ed20d207c740b8 Mon Sep 17 00:00:00 2001
From: elpaablo <donopwhile1@gmail.com>
Date: Sat, 1 Mar 2025 13:33:54 +0000
Subject: [PATCH] lunch: make release argument optional

---
 envsetup.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/envsetup.sh b/envsetup.sh
index a2ccd17cc9..ec21e2e2ec 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -482,11 +482,18 @@ function lunch()
 
     export TARGET_BUILD_APPS=
 
-    # This must be <product>-<release>-<variant>
+    # This must be <product>-[<release>]-<variant>
     local product release variant
     # Split string on the '-' character.
     IFS="-" read -r product release variant <<< "$selection"
 
+    if [[ -z "$variant" ]]
+    then
+        # try to lunch with latest release
+        variant=$release
+        # from https://github.com/yaap/build_make/blob/c7753b7616c75f020cd1bdb04fda05625d2649cc/envsetup.sh#L523
+        release=$(grep "BUILD_ID" build/make/core/build_id.mk | tail -1 | cut -d '=' -f 2 | cut -d '.' -f 1 | tr '[:upper:]' '[:lower:]')
+    fi
     if [[ -z "$product" ]] || [[ -z "$release" ]] || [[ -z "$variant" ]]
     then
         echo