F #4: add loading config file

oneswap

@@ -58,6 +58,7 @@ require 'socket'
 require 'ipaddr'
 require 'open3'
 require 'rexml'
+require 'yaml'
 require 'cgi'
 
 CommandParser::CmdParser.new(ARGV) do
@@ -306,11 +307,18 @@ CommandParser::CmdParser.new(ARGV) do
         :format => String
     }
 
+    CONF_FILE = {
+        :name => 'config_file',
+        :large => '--config-file /path/to/custom/config.yaml',
+        :description => 'Path to custom Configuration File, default is /var/lib/one/oneswap.yaml',
+        :format => String
+    }
+
     ESXI_OPTS = [ESXI, ESXI_USER, ESXI_PASS]
     V2V_OPTS = [WORK_DIR, FORMAT, VIRTIO, WIN_GA, LNX_GA, DELETE, VDDK, RHSRVANY]
 
     LIST_OPTS    = [NAME, DATACENTER, CLUSTER, STATE] + AUTH_OPTS
-    CONVERT_OPTS = [NETWORK, NO_IP, NO_MAC, DATASTORE, CONTEXT, FALLBACK, CUSTOM, HYBRID, V2V_PATH,
+    CONVERT_OPTS = [NETWORK, NO_IP, NO_MAC, DATASTORE, CONTEXT, FALLBACK, CUSTOM, HYBRID, V2V_PATH, CONF_FILE,
                    ONE_DS, ONE_DS_CLUSTER, ONE_CLUSTER, ONE_HOST] + AUTH_OPTS + ESXI_OPTS + V2V_OPTS
 
     set :option, CommandParser::OPTIONS + OpenNebulaHelper::CLIENT_OPTIONS
@@ -376,6 +384,9 @@ CommandParser::CmdParser.new(ARGV) do
 
     command :convert, conv_desc, :vm_name, :options => CONVERT_OPTS do
         begin
+            if options[:config_file] && !File.exist?(options[:config_file])
+                raise "Unable to find the config file at #{options[:config_file]}"
+            end
             raise 'ESXi Transfer requires at least IP and Password' if options[:esxi_ip] && options[:esxi_pass].nil?
             raise 'ESXI and VDDK cannot be used at same time, recommend VDDK.' if options[:esxi_ip] && options[:vddk]
             if options[:hybrid] && ( options[:custom] || options[:esxi_ip] || options[:vddk] )
@@ -405,6 +416,10 @@ CommandParser::CmdParser.new(ARGV) do
             options[:datastore]    ||= 1
             options[:virt_tools]   ||= '/usr/share/virt-tools'
             options[:v2v_path]     ||= 'virt-v2v'
+            options[:config_file]  ||= '/var/lib/one/oneswap.yaml'
+
+            cfg_file = YAML.load_file(options[:config_file]) if File.exist?(options[:config_file])
+            options.merge!(cfg_file) if cfg_file
 
             helper.convert(args[0], options)
         rescue StandardError => e

oneswap.yaml

@@ -0,0 +1,28 @@
+#:vcenter:
+#:vuser:
+#:vpass:
+#:port:
+#:network:
+#:skip_ip:
+#:skip_mac:
+#:datastore:
+#:work_dir:
+#:format:
+#:delete:
+#:context:
+#:esxi_ip:
+#:esxi_user:
+#:esxi_pass:
+#:vddk_path:
+#:custom_convert:
+#:fallback:
+#:hybrid:
+#:qemu_ga_win:
+#:qemu_ga_linux:
+#:virtio_path:
+#:virt_tools:
+#:one_cluster:
+#:one_host:
+#:one_datastore:
+#:one_datastore_cluster:
+#:v2v_path: