From 6325e6b74b7456917af60ea5cef8e60c2459bc70 Mon Sep 17 00:00:00 2001
From: YuzukiTsuru <gloomyghost@gloomyghost.com>
Date: Tue, 21 Jun 2022 22:34:39 +0800
Subject: [PATCH] add new command

---
 docs/README.md | 4 ++++
 envsetup.sh    | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/docs/README.md b/docs/README.md
index e65d2c04..75ec38b2 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -310,6 +310,10 @@ Modify the kernel-related patch or need to restore the original kernel, sync to
 
 Modify the uboot-related patch or need to restore the original uboot, sync to original
 
+`sync_update`
+
+Sometimes when you upgrade Buildroot YuzukiSBC, you will find that the compilation does not pass, please use this command to delete the old files
+
 # Appendix
 
 ## board file trees and file path definition
diff --git a/envsetup.sh b/envsetup.sh
index 3d49d5a3..702bf3c5 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -37,6 +37,12 @@ then
     export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/wsl/lib"
 fi
 
+UpdateInfo(){
+    echo "************************************************************"
+    echo "* Update done! You may need to run sync_update after lunch.*"
+    echo "************************************************************"
+}
+
 FetchUpdate(){
     git fetch origin master:tmp
     if [ $(git diff tmp | grep -c "-") -gt 1 ];
@@ -46,6 +52,7 @@ FetchUpdate(){
             [yY][eE][sS]|[yY])
                 echo "Now try to merge upstream..."
                 git merge tmp
+                UpdateInfo
                 ;;
         
             [nN][oO]|[nN])
@@ -108,6 +115,7 @@ alias rebuild_uboot="make uboot-rebuild -j8 && make"
 alias wsl_path="export PATH=\"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/wsl/lib\""
 alias sync_kernel="rm -rf output/build/linux* && rm -rf output/build/.linux* && make"
 alias sync_uboot="rm -rf output/build/uboot* && make"
+alias sync_update="rm -rf output/build/linux* && rm -rf output/build/.linux* && rm -rf output/build/uboot* && rm -rf dl/uboot* && rm -rf dl/linux*"
 
 alias mm="make"
 alias m="make"