Basic BBSimCtl implementation
Change-Id: Ib5e6f7f462cdb10a3d976b99812658bf7e225dfb
diff --git a/internal/bbsimctl/config/config.go b/internal/bbsimctl/config/config.go
new file mode 100644
index 0000000..caf0601
--- /dev/null
+++ b/internal/bbsimctl/config/config.go
@@ -0,0 +1,105 @@
+/*
+ * Portions copyright 2019-present Open Networking Foundation
+ * Original copyright 2019-present Ciena Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package config
+
+import (
+ log "github.com/sirupsen/logrus"
+ "io/ioutil"
+ "net"
+ "os"
+ "fmt"
+ "time"
+ "gopkg.in/yaml.v2"
+)
+
+var (
+ Version string
+ BuildTime string
+ CommitHash string
+ GitStatus string
+)
+
+var GlobalOptions struct {
+ Config string `short:"c" long:"config" env:"BBSIMCTL_CONFIG" value-name:"FILE" default:"" description:"Location of client config file"`
+ Server string `short:"s" long:"server" default:"" value-name:"SERVER:PORT" description:"IP/Host and port of XOS"`
+ //Protoset string `long:"protoset" value-name:"FILENAME" description:"Load protobuf definitions from protoset instead of reflection api"`
+ Debug bool `short:"d" long:"debug" description:"Enable debug mode"`
+}
+
+type GrpcConfigSpec struct {
+ Timeout time.Duration `yaml:"timeout"`
+}
+
+type GlobalConfigSpec struct {
+ Server string `yaml:"server"`
+ Grpc GrpcConfigSpec
+}
+
+var GlobalConfig = GlobalConfigSpec{
+ Server: "localhost:50070",
+ Grpc: GrpcConfigSpec{
+ Timeout: time.Second * 10,
+ },
+}
+
+func ProcessGlobalOptions() {
+ if len(GlobalOptions.Config) == 0 {
+ home, err := os.UserHomeDir()
+ if err != nil {
+ log.Printf("Unable to discover the users home directory: %s\n", err)
+ }
+ GlobalOptions.Config = fmt.Sprintf("%s/.bbsim/config", home)
+ }
+
+ info, err := os.Stat(GlobalOptions.Config)
+ if err == nil && !info.IsDir() {
+ configFile, err := ioutil.ReadFile(GlobalOptions.Config)
+ if err != nil {
+ log.Printf("configFile.Get err #%v ", err)
+ }
+ err = yaml.Unmarshal(configFile, &GlobalConfig)
+ if err != nil {
+ log.Fatalf("Unmarshal: %v", err)
+ }
+ }
+
+ // Override from environment
+ // in particualr, for passing env vars via `go test`
+ env_server, present := os.LookupEnv("BBSIMCTL_SERVER")
+ if present {
+ GlobalConfig.Server = env_server
+ }
+
+ // Override from command line
+ if GlobalOptions.Server != "" {
+ GlobalConfig.Server = GlobalOptions.Server
+ }
+
+
+ // Generate error messages for required settings
+ if GlobalConfig.Server == "" {
+ log.Fatal("Server is not set. Please update config file or use the -s option")
+ }
+
+ //Try to resolve hostname if provided for the server
+ if host, port, err := net.SplitHostPort(GlobalConfig.Server); err == nil {
+ if addrs, err := net.LookupHost(host); err == nil {
+ GlobalConfig.Server = net.JoinHostPort(addrs[0], port)
+ }
+ }
+}
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