eris.go

package commands

import (
	"fmt"
	"io"
	"os"

	"github.com/eris-ltd/eris-cli/config"
	"github.com/eris-ltd/eris-cli/definitions"
	"github.com/eris-ltd/eris-cli/util"
	"github.com/eris-ltd/eris-cli/version"

	"github.com/eris-ltd/eris-cli/Godeps/_workspace/src/github.com/eris-ltd/common/go/ipfs"
	"github.com/eris-ltd/eris-cli/Godeps/_workspace/src/github.com/eris-ltd/common/go/log"
	"github.com/eris-ltd/eris-cli/Godeps/_workspace/src/github.com/spf13/cobra"
)

const VERSION = version.VERSION

// Defining the root command
var ErisCmd = &cobra.Command{
	Use:   "eris [command] [flags]",
	Short: "The Blockchain Application Platform",
	Long: `Eris is a platform for building, testing, maintaining, and operating
distributed applications with a blockchain backend. Eris makes it easy
and simple to wrangle the dragons of smart contract blockchains.

Made with <3 by Eris Industries.

Complete documentation is available at https://docs.erisindustries.com
` + "\nVersion:\n  " + VERSION,
	PersistentPreRun: func(cmd *cobra.Command, args []string) {
		var logLevel log.LogLevel
		if do.Verbose {
			logLevel = 2
		} else if do.Debug {
			logLevel = 3
		}
		log.SetLoggers(logLevel, config.GlobalConfig.Writer, config.GlobalConfig.ErrorWriter)

		ipfs.IpfsHost = config.GlobalConfig.Config.IpfsHost

		util.DockerConnect(do.Verbose, do.MachineName)
	},
	PersistentPostRun: func(cmd *cobra.Command, args []string) {
		err := config.SaveGlobalConfig(config.GlobalConfig.Config)
		if err != nil {
			logger.Errorln(err)
		}
		log.Flush()
	},
}

func Execute() {
	InitializeConfig()
	AddGlobalFlags()
	AddCommands()
	ErisCmd.Execute()
}

// Define the commands
func AddCommands() {
	buildServicesCommand()
	ErisCmd.AddCommand(Services)
	buildChainsCommand()
	ErisCmd.AddCommand(Chains)
	buildContractsCommand()
	ErisCmd.AddCommand(Contracts)
	buildActionsCommand()
	ErisCmd.AddCommand(Actions)
	buildDataCommand()
	ErisCmd.AddCommand(Data)
	buildFilesCommand()
	ErisCmd.AddCommand(Files)
	// buildProjectsCommand()
	// ErisCmd.AddCommand(Projects)
	// buildRemotesCommand()
	// ErisCmd.AddCommand(Remotes)
	ErisCmd.AddCommand(ListKnown)
	ErisCmd.AddCommand(ListExisting)

	buildConfigCommand()
	ErisCmd.AddCommand(Config)
	ErisCmd.AddCommand(VerSion)
	buildInitCommand()
	ErisCmd.AddCommand(Init)
}

// Global Do struct
var do *definitions.Do

// Flags that are to be used by commands are handled by the Do struct
// Define the persistent commands (globals)
func AddGlobalFlags() {
	ErisCmd.PersistentFlags().BoolVarP(&do.Verbose, "verbose", "v", false, "verbose output")
	ErisCmd.PersistentFlags().BoolVarP(&do.Debug, "debug", "d", false, "debug level output")
	ErisCmd.PersistentFlags().IntVarP(&do.Operations.ContainerNumber, "num", "n", 1, "container number")
	ErisCmd.PersistentFlags().StringVarP(&do.MachineName, "machine", "", "eris", "machine name for docker-machine that is running VM")

}

func InitializeConfig() {
	var err error
	var out io.Writer
	var erw io.Writer

	do = definitions.NowDo()

	if os.Getenv("ERIS_CLI_WRITER") != "" {
		out, err = os.Open(os.Getenv("ERIS_CLI_WRITER"))
		if err != nil {
			fmt.Printf("Could not open: %s\n", err)
			return
		}
	} else {
		out = os.Stdout
	}

	if os.Getenv("ERIS_CLI_ERROR_WRITER") != "" {
		erw, err = os.Open(os.Getenv("ERIS_CLI_ERROR_WRITER"))
		if err != nil {
			fmt.Printf("Could not open: %s\n", err)
			return
		}
	} else {
		erw = os.Stderr
	}

	config.GlobalConfig, err = config.SetGlobalObject(out, erw)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}

func ArgCheck(num int, comp string, cmd *cobra.Command, args []string) error {
	switch comp {
	case "eq":
		if len(args) != num {
			cmd.Help()
			return fmt.Errorf("\n**Note** you sent our marmots the wrong number of arguments.\nPlease send the marmots %d arguments only.", num)
		}
	case "ge":
		if len(args) < num {
			cmd.Help()
			return fmt.Errorf("\n**Note** you sent our marmots the wrong number of arguments.\nPlease send the marmots at least %d argument(s).", num)
		}
	}
	return nil
}