script: do not use dos2unix to change shell file type

* the shell script can't exit with 0 if there is no error
* or the Jenkins job will stop

Signed-off-by: Jingru Wang <jingru@synopsys.com>

Author: wangnuannuan

apply_embARC_patch.sh

@@ -1,4 +1,17 @@
 #!/usr/bin/env bash
+dir="${BASH_SOURCE[0]}"
+
+if uname | grep -q "MINGW"; then
+    win_build=1
+    pwd_opt="-W"
+else
+    win_build=0
+    pwd_opt=""
+fi
+
+# identify OS source tree root directory
+export embARC_OSP_BASE=$( builtin cd "$( dirname "$dir" )" > /dev/null && pwd ${pwd_opt})
+unset pwd_opt
 
 patches_required_folders="library,middleware,os"
 
@@ -7,11 +20,6 @@ patches_required_folder_list=(${patches_required_folders//,/ })
 PREV_DIR=$(pwd)
 SCRIPT_DIR=$(dirname $0)
 
-if which dos2unix >/dev/null 2>&1; then :; else
-    echo "You need dos2unix in your path" >&2
-    exit 1
-fi
-
 cd ${SCRIPT_DIR}
 
 echo "Start to download required source code and apply patches for embARC"
@@ -20,17 +28,11 @@ echo ""
 exit_ok=0
 for patch_folder in ${patches_required_folder_list[@]}
 do
-	patch_scripts=$(find $patch_folder -maxdepth 2 -name "apply_embARC_patch.sh")
+	patch_scripts=$(find ${embARC_OSP_BASE}/${patch_folder} -maxdepth 2 -name "apply_embARC_patch.sh")
 	for script in ${patch_scripts[@]}
 	do
 		patch_dir=$(dirname ${script})
 		echo "+++++Try to patch ${patch_dir}+++++"
-		echo "Run script: chmod +x ${script} && ${script}"
-		filetype=$(file ${script} | grep -q CRLF && echo DOS || echo UNIX)
-		if [[ ${filetype} == DOS ]] ; then
-			echo "Convert ${script} from DOS to UNIX"
-			dos2unix ${script}
-		fi
 		chmod +x ${script} && ${script}
 		if [[ $? -eq 0 ]] ; then
 			echo "-----Patch ${patch_dir} successfully-----"
@@ -46,7 +48,7 @@ if [[ ${exit_ok} -eq 0 ]] ; then
 	echo "Apply patches for embARC successfully"
 else
 	echo "Apply patches for embARC failed"
+	exit ${exit_ok}
 fi
 echo "Patch job ended"
 cd ${PREV_DIR}
-exit ${exit_ok}