Initial commit of source

dns-record

@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+
+SCRIPT_PATH=$(realpath -s "$0")
+SCRIPT_DIR=$(dirname "$SCRIPT_PATH")
+SCRIPT=$(basename "$SCRIPT_PATH")
+
+usage() {
+  cat <<EOF
+Usage: $SCRIPT [OPTIONS]... COMMAND [COMMAND OPTIONS]
+
+Manage DNS records.
+
+Commands:
+ * help [COMMAND]    show help message of commands
+ * add               add record to zone
+ * delete            delete record from zone
+
+Options:
+  -c, --config       path to config file
+  -h, --help         print this help message
+
+EOF
+  exit
+}
+
+config_file="$SCRIPT_DIR"/config.sh
+cmd=""
+
+while [ -n "$1" ]; do
+  opt=$1
+  shift
+  case "$opt" in
+    -c|--config)
+      if [ -z "$1" ]; then
+        echo "$SCRIPT: missing argument to option -- '$opt'" >&2
+	exit 1
+      fi
+      config_file=$1
+      shift
+    ;;
+    -h|--help)
+      usage
+    ;;
+    -*)
+      echo "$SCRIPT: invalid option -- '$opt'" >&2
+      exit 1
+    ;;
+    *)
+      cmd=$opt
+      break
+    ;;
+  esac
+done
+
+cmd=${cmd,,:-help}
+
+source "$config_file" || exit 1
+
+LIB_DIR=${LIB_DIR:-$SCRIPT_DIR/lib}
+source "$LIB_DIR"/dns.sh || exit 1
+source "$LIB_DIR"/output.sh || exit 1
+
+params="--interactive"
+
+if [ "$cmd" == "help" ]; then
+  params="--help"
+  cmd=${1,,}
+  shift
+fi
+
+case "$cmd" in
+  add)
+    "$SCRIPT_DIR"/dns-record-add $params "$@"
+  ;;
+  del|delete)
+    "$SCRIPT_DIR"/dns-record-delete $params "$@"
+  ;;
+  "")
+    usage
+  ;;
+  *)
+    echo "$SCRIPT: invalid command -- '$cmd'" >&2
+    exit 5
+  ;;
+esac