add tag commands to cli

lib/api/tag.js

@@ -210,4 +210,52 @@ module.exports = {
     create: create,
     update: update,
     "delete": delete_tags,
+    getUsage: function(){
+        return [
+            "${command} tag get_all [--source <source>]",
+            "${command} tag get <host> [--source <source>] [--by-source]",
+            "${command} tag delete <host> [--source <source>]",
+            "${command} tag create <host> <tags> [--source <source>]",
+            "${command} tag update <host> <tags> [--source <source>]"
+        ];
+    },
+    getHelp: function(){
+        return [
+            "Tag Commands:",
+            "  get_all               get all tags",
+            "  get <host>            get all tags for a given host",
+            "  delete <host>         delete tags for a given host",
+            "  create <host> <tags>  add the comma separates \"tag:value\"'s from <tag> to <host>",
+            "  update <host> <tags>  update the comma separates \"tag:value\"'s from <tag> to <host>",
+            "",
+            "Tag Options:",
+            "  --source <source>     the source of the tags (e.g. \"chef\", \"user\", \"jenkins\", etc)",
+            "  --by-source           whether the results should be grouped by source"
+        ];
+    },
+    handleCli: function(subcommand, args, callback){
+        var source = args["source"];
+        var host = args._[4];
+
+        if(subcommand === "get_all"){
+            get_all(source, callback);
+        } else if(subcommand === "get"){
+            var options = {};
+            if(source){
+                options.source = source;
+            }
+            if(args["by-source"]){
+                options.by_source = true;
+            }
+            get(host, options, callback);
+        } else if(subcommand === "create"){
+            var tags = args._[5].split(",");
+            create(host, tags, source, callback);
+        } else if(subcommand === "update"){
+            var tags = args._[5].split(",");
+            update(host, tags, source, callback);
+        } else if(subcommand === "delete"){
+            delete_tags(host, source, callback);
+        }
+    }
 }