Add subcmd checkdeps

sdata/subcmd-checkdeps/options.sh

@@ -0,0 +1,48 @@
+# Handle args for subcmd: exp-uninstall
+# shellcheck shell=bash
+
+showhelp(){
+echo -e "Syntax: $0 checkdeps [OPTIONS]...
+
+Experimental unintallation.
+
+Options:
+  -h, --help       Show this help message
+      --file       A file in plain text containing package names
+"
+}
+# `man getopt` to see more
+para=$(getopt \
+  -o h \
+  -l help,file: \
+  -n "$0" -- "$@")
+[ $? != 0 ] && echo "$0: Error when getopt, please recheck parameters." && exit 1
+#####################################################################################
+## getopt Phase 1
+# ignore parameter's order, execute options below first
+eval set -- "$para"
+while true ; do
+  case "$1" in
+    -h|--help) showhelp;exit;;
+    --) break ;;
+    *) shift ;;
+  esac
+done
+#####################################################################################
+## getopt Phase 2
+
+eval set -- "$para"
+while true ; do
+  case "$1" in
+    ## Ones with parameter
+    --file)
+    if [[ -f "$2" ]];
+      then echo "Using list file \"$2\".";LIST_FILE_PATH="$2";shift 2
+      else echo "Wrong argument for $1.";exit 1
+    fi;;
+
+    ## Ending
+    --) break ;;
+    *) echo -e "$0: Wrong parameters.";exit 1;;
+  esac
+done