wip

cmd/root.go

@@ -0,0 +1,105 @@
+/*
+Copyright © 2023 Ask Bjørn Hansen
+
+See LICENSE
+*/
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+	"go.ntppool.org/data-api/version"
+
+	homedir "github.com/mitchellh/go-homedir"
+	"github.com/spf13/viper"
+)
+
+var cfgFile string
+
+type CLI struct {
+	root *cobra.Command
+}
+
+func NewCLI() *CLI {
+	cli := &CLI{}
+	cli.root = cli.rootCmd()
+
+	cli.init(cli.root)
+	return cli
+}
+
+// RootCmd represents the base command when called without any subcommands
+func (cli *CLI) rootCmd() *cobra.Command {
+	var cmd = &cobra.Command{
+		Use:   "data-api",
+		Short: "A brief description of your application",
+		Long: `A longer description that spans multiple lines and likely contains
+examples and usage of using your application. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+		// Uncomment the following line if your bare application
+		// has an action associated with it:
+		//	Run: func(cmd *cobra.Command, args []string) { },
+	}
+
+	cmd.AddCommand(cli.serverCmd())
+	cmd.AddCommand(version.VersionCmd())
+
+	return cmd
+}
+
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+
+	cli := NewCLI()
+
+	if err := cli.root.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func (cli *CLI) init(cmd *cobra.Command) {
+	cobra.OnInitialize(initConfig)
+
+	// Here you will define your flags and configuration settings.
+	// Cobra supports persistent flags, which, if defined here,
+	// will be global for your application.
+
+	cmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.data-api.yaml)")
+
+	// Cobra also supports local flags, which will only run
+	// when this action is called directly.
+	cmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}
+
+// initConfig reads in config file and ENV variables if set.
+func initConfig() {
+	if cfgFile != "" {
+		// Use config file from the flag.
+		viper.SetConfigFile(cfgFile)
+	} else {
+		// Find home directory.
+		home, err := homedir.Dir()
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		// Search config in home directory with name ".data-api" (without extension).
+		viper.AddConfigPath(home)
+		viper.SetConfigName(".data-api")
+	}
+
+	viper.AutomaticEnv() // read in environment variables that match
+
+	// If a config file is found, read it in.
+	if err := viper.ReadInConfig(); err == nil {
+		fmt.Println("Using config file:", viper.ConfigFileUsed())
+	}
+}

cmd/servercmd.go

@@ -0,0 +1,50 @@
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"github.com/spf13/cobra"
+	"go.ntppool.org/data-api/server"
+	"golang.org/x/sync/errgroup"
+)
+
+func (cli *CLI) serverCmd() *cobra.Command {
+
+	var serverCmd = &cobra.Command{
+		Use:   "server",
+		Short: "server starts the API server",
+		Long:  `starts the API server on (default) port 8000`,
+		// DisableFlagParsing: true,
+		// Args:  cobra.ExactArgs(1),
+		RunE: cli.serverCLI,
+	}
+
+	return serverCmd
+}
+
+func (cli *CLI) serverCLI(cmd *cobra.Command, args []string) error {
+
+	// cfg := cli.Config
+	ctx, cancel := context.WithCancel(context.Background())
+	g, ctx := errgroup.WithContext(ctx)
+
+	g.Go(func() error {
+		srv, err := server.NewServer(ctx)
+		if err != nil {
+			log.Printf("NewServer() error: %s", err)
+			return fmt.Errorf("srv setup: %s", err)
+		}
+		return srv.Run()
+	})
+
+	err := g.Wait()
+	if err != nil {
+		log.Printf("server error: %s", err)
+	}
+
+	cancel()
+	return err
+
+}