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256 lines
5.9 KiB
256 lines
5.9 KiB
package main
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import (
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"fmt"
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"github.com/codegangsta/cli"
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"io/ioutil"
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"os"
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"sync"
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acm "github.com/tendermint/tendermint/account"
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"github.com/tendermint/tendermint/binary"
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btypes "github.com/tendermint/tendermint/cmd/barak/types"
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. "github.com/tendermint/tendermint/common"
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)
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var Config = struct {
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Remotes []string
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PrivKey acm.PrivKey
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}{}
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func main() {
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fmt.Printf("New Debora Process (PID: %d)\n", os.Getpid())
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rootDir := os.Getenv("DEBROOT")
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if rootDir == "" {
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rootDir = os.Getenv("HOME") + "/.debora"
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}
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var (
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groupFlag = cli.StringFlag{
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Name: "group",
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Value: "default",
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Usage: "uses ~/.debora/<group>.cfg",
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}
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labelFlag = cli.StringFlag{
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Name: "label",
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Value: "_",
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Usage: "label of the process, or _ by default",
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}
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bgFlag = cli.BoolFlag{
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Name: "bg",
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Usage: "if set, runs as a background daemon",
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}
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inputFlag = cli.StringFlag{
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Name: "input",
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Value: "",
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Usage: "input to the program (e.g. stdin)",
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}
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)
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app := cli.NewApp()
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app.Name = "debora"
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app.Usage = "summons commands to barak"
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app.Version = "0.0.1"
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app.Email = "ethan@erisindustries.com,jae@tendermint.com"
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app.Flags = []cli.Flag{
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groupFlag,
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}
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app.Before = func(c *cli.Context) error {
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configFile := rootDir + "/" + c.String("group") + ".cfg"
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fmt.Printf("Using configuration from %v\n", configFile)
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ReadConfig(configFile)
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return nil
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}
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app.Commands = []cli.Command{
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cli.Command{
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Name: "status",
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Usage: "shows remote status",
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Action: cliGetStatus,
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},
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cli.Command{
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Name: "run",
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Usage: "run process",
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Action: cliRunProcess,
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Flags: []cli.Flag{
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labelFlag,
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bgFlag,
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inputFlag,
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},
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},
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cli.Command{
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Name: "stop",
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Usage: "stop process",
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Action: cliStopProcess,
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},
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cli.Command{
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Name: "list",
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Usage: "list processes",
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Action: cliListProcesses,
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},
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cli.Command{
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Name: "download",
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Usage: "download file <remote-path> <local-path-prefix>",
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Action: cliDownloadFile,
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},
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}
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app.Run(os.Args)
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}
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func ReadConfig(configFilePath string) {
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configJSONBytes, err := ioutil.ReadFile(configFilePath)
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if err != nil {
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Exit(Fmt("Failed to read config file %v. %v\n", configFilePath, err))
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}
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binary.ReadJSON(&Config, configJSONBytes, &err)
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if err != nil {
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Exit(Fmt("Failed to parse config. %v", err))
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}
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}
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func cliGetStatus(c *cli.Context) {
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args := c.Args()
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if len(args) != 0 {
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fmt.Println("BTW, status takes no arguments.")
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}
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wg := sync.WaitGroup{}
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for _, remote := range Config.Remotes {
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wg.Add(1)
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go func(remote string) {
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defer wg.Done()
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response, err := GetStatus(remote)
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if err != nil {
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fmt.Printf("%v failure. %v\n", remote, err)
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} else {
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fmt.Printf("%v success. %v\n", remote, response)
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}
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}(remote)
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}
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wg.Wait()
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}
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func cliRunProcess(c *cli.Context) {
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args := c.Args()
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if len(args) < 1 {
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Exit("Must specify <execPath> <args...>")
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}
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execPath := args[0]
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args = args[1:]
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command := btypes.CommandRunProcess{
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Wait: !c.Bool("bg"),
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Label: c.String("label"),
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ExecPath: execPath,
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Args: args,
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Input: c.String("input"),
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}
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wg := sync.WaitGroup{}
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for _, remote := range Config.Remotes {
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wg.Add(1)
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go func(remote string) {
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defer wg.Done()
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response, err := RunProcess(Config.PrivKey, remote, command)
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if err != nil {
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fmt.Printf("%v failure. %v\n", remote, err)
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} else {
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fmt.Printf("%v success.\n", remote)
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if response.Output != "" {
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fmt.Println("--------------------------------------------------------------------------------")
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fmt.Println(response.Output)
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fmt.Println("--------------------------------------------------------------------------------")
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} else {
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fmt.Println("(no output)")
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}
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}
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}(remote)
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}
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wg.Wait()
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}
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func cliStopProcess(c *cli.Context) {
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args := c.Args()
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if len(args) == 0 {
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Exit("Must specify label to stop")
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}
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label := args[0]
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command := btypes.CommandStopProcess{
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Label: label,
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Kill: true,
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}
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wg := sync.WaitGroup{}
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for _, remote := range Config.Remotes {
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wg.Add(1)
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go func(remote string) {
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defer wg.Done()
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response, err := StopProcess(Config.PrivKey, remote, command)
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if err != nil {
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fmt.Printf("%v failure. %v\n", remote, err)
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} else {
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fmt.Printf("%v success. %v\n", remote, response)
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}
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}(remote)
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}
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wg.Wait()
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}
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func cliListProcesses(c *cli.Context) {
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/*
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args := c.Args()
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if len(args) == 0 {
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log.Fatal("Must specify application name")
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}
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app := args[0]
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*/
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command := btypes.CommandListProcesses{}
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wg := sync.WaitGroup{}
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for _, remote := range Config.Remotes {
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wg.Add(1)
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go func(remote string) {
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defer wg.Done()
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response, err := ListProcesses(Config.PrivKey, remote, command)
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if err != nil {
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fmt.Printf("%v failure. %v\n", Blue(remote), Red(err))
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} else {
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fmt.Printf("%v processes:\n", Blue(remote))
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for _, proc := range response.Processes {
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fmt.Printf(" \"%v\" => `%v %v` (%v)\n", Yellow(proc.Label), proc.ExecPath, proc.Args, proc.Pid)
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fmt.Printf(" started at %v", proc.StartTime.String())
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if proc.EndTime.IsZero() {
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fmt.Printf(", running still\n")
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} else {
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endTimeStr := proc.EndTime.String()
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fmt.Printf(", stopped at %v\n", Yellow(endTimeStr))
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}
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fmt.Printf(" stdout/stderr goes to %v\n", proc.OutputPath)
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}
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}
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}(remote)
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}
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wg.Wait()
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}
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func cliDownloadFile(c *cli.Context) {
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args := c.Args()
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if len(args) != 2 {
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Exit("Must specify <remote-path> <local-path-prefix>")
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}
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remotePath := args[0]
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localPathPrefix := args[1]
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command := btypes.CommandServeFile{
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Path: remotePath,
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}
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wg := sync.WaitGroup{}
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for i, remote := range Config.Remotes {
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wg.Add(1)
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go func(remote string) {
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defer wg.Done()
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localPath := Fmt("%v_%v", localPathPrefix, i)
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n, err := DownloadFile(Config.PrivKey, remote, command, localPath)
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if err != nil {
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fmt.Printf("%v failure. %v\n", remote, err)
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} else {
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fmt.Printf("%v success. Wrote %v bytes to %v\n", remote, n, localPath)
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}
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}(remote)
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}
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wg.Wait()
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}
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