修复 shell 变量初始化检查，更新 sentry 版本

shell/share.sh

@@ -5,7 +5,7 @@ export dir_root=$QL_DIR
 export dir_tmp=$dir_root/.tmp
 export dir_data=$dir_root/data
 
-if [[ $QL_DATA_DIR ]]; then
+if [[ ${QL_DATA_DIR:=} ]]; then
   export dir_data="${QL_DATA_DIR%/}"
 fi
 
@@ -84,7 +84,7 @@ import_config() {
   command_timeout_time=${CommandTimeoutTime:-""}
   file_extensions=${RepoFileExtensions:-"js py"}
   proxy_url=${ProxyUrl:-""}
-  current_branch=${QL_BRANCH}
+  current_branch=${QL_BRANCH:-""}
 
   if [[ -n "${DefaultCronRule}" ]]; then
     default_cron="${DefaultCronRule}"
@@ -461,7 +461,7 @@ run_task_before() {
 run_task_after() {
   . $file_task_after "$@"
 
-  if [[ $task_after ]]; then
+  if [[ ${task_after:=} ]]; then
     echo -e "\n执行后置命令\n"
     eval "$task_after" "$@"
     echo -e "\n执行后置命令结束"