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https://github.com/schollz/croc.git
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This commit is contained in:
Zack Scholl
parent
606918b14e
commit
84f732b662
742 changed files with 165 additions and 302649 deletions
380
main.go
380
main.go
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@ -1,380 +0,0 @@
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package main
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import (
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"bufio"
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"fmt"
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"io/ioutil"
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"os"
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"reflect"
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"strconv"
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"strings"
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log "github.com/cihub/seelog"
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"github.com/fatih/structs"
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"github.com/urfave/cli"
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"github.com/yudai/gotty/pkg/homedir"
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"github.com/yudai/hcl"
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yaml "gopkg.in/yaml.v2"
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)
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const BUFFERSIZE = 1024
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type AppConfig struct {
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Relay bool `yaml:"relay" flagName:"relay" flagSName:"r" flagDescribe:"Run as relay" default:"false"`
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Debug bool `yaml:"debug" flagName:"debug" flagSName:"d" flagDescribe:"Debug mode" default:"false"`
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Wait bool `yaml:"wait" flagName:"wait" flagSName:"w" flagDescribe:"Wait for code to be sent" default:"false"`
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PathSpec bool `yaml:"ask-save" flagName:"ask-save" flagSName:"q" flagDescribe:"Ask for path to save to" default:"false"`
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DontEncrypt bool `yaml:"no-encrypt" flagName:"no-encrypt" flagSName:"g" flagDescribe:"Turn off encryption" default:"false"`
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UseStdout bool `yaml:"stdout" flagName:"stdout" flagSName:"o" flagDescribe:"Use stdout" default:"false"`
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Yes bool `yaml:"yes" flagName:"yes" flagSName:"y" flagDescribe:"Automatically accept file" default:"false"`
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Local bool `yaml:"local" flagName:"local" flagSName:"lo" flagDescribe:"Use local relay when sending" default:"false"`
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NoLocal bool `yaml:"no-local" flagName:"no-local" flagSName:"nlo" flagDescribe:"Don't create local relay" default:"false"`
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Server string `yaml:"server" flagName:"server" flagSName:"l" flagDescribe:"Croc relay to use" default:"cowyo.com"`
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File string `yaml:"send" flagName:"send" flagSName:"s" flagDescribe:"File to send default:""`
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Path string `yaml:"save" flagName:"save" flagSName:"p" flagDescribe:"Path to save to" default:""`
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Code string `yaml:"code" flagName:"code" flagSName:"c" flagDescribe:"Use your own code phrase" default:""`
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Rate int `yaml:"rate" flagName:"rate" flagSName:"R" flagDescribe:"Throttle down to speed in kbps" default:"1000000"`
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NumberOfConnections int `yaml:"threads" flagName:"threads" flagSName:"n" flagDescribe:"Number of threads to use" default:"4"`
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}
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var email string
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var author string
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var version string
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func init() {
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SetLogLevel("debug")
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}
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func main() {
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defer log.Flush()
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app := cli.NewApp()
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app.Name = "croc"
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app.Version = version
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app.Author = author
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app.Email = email
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app.Usage = "send file by croc bridge"
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app.HideHelp = true
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cli.AppHelpTemplate = helpTemplate
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appOptions := &AppConfig{}
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if err := ApplyDefaultValues(appOptions); err != nil {
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exit(err, 1)
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}
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cliFlags, flagMappings, err := GenerateFlags(appOptions)
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if err != nil {
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exit(err, 3)
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}
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app.Flags = append(
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cliFlags,
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cli.StringFlag{
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Name: "config",
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Value: "~/.croc",
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Usage: "Config file path",
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EnvVar: "CROC_CONFIG",
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},
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)
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app.Action = func(c *cli.Context) {
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configFile := c.String("config")
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_, err := os.Stat(homedir.Expand(configFile))
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if configFile != "~/.croc" || !os.IsNotExist(err) {
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if err := ApplyConfigFileYaml(configFile, appOptions); err != nil {
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exit(err, 2)
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}
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}
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ApplyFlags(cliFlags, flagMappings, c, appOptions)
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if appOptions.Relay {
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fmt.Println("running relay on local address " + GetLocalIP())
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r := NewRelay(appOptions)
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r.Run()
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} else {
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c, err := NewConnection(appOptions)
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if err != nil {
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fmt.Printf("Error! Please submit the following error to https://github.com/schollz/croc/issues:\n\n'NewConnection: %s'\n\n", err.Error())
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return
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}
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err = c.Run()
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if err != nil {
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fmt.Printf("Error! Please submit the following error to https://github.com/schollz/croc/issues:\n\n'Run: %s'\n\n", err.Error())
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}
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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 getInput(prompt string) string {
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reader := bufio.NewReader(os.Stdin)
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fmt.Fprintf(os.Stderr, "%s", prompt)
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text, _ := reader.ReadString('\n')
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return strings.TrimSpace(text)
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}
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func exit(err error, code int) {
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if err != nil {
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fmt.Println(err)
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}
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os.Exit(code)
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}
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func ApplyDefaultValues(struct_ interface{}) (err error) {
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o := structs.New(struct_)
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for _, field := range o.Fields() {
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defaultValue := field.Tag("default")
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if defaultValue == "" {
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continue
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}
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var val interface{}
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switch field.Kind() {
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case reflect.String:
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val = defaultValue
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case reflect.Bool:
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if defaultValue == "true" {
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val = true
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} else if defaultValue == "false" {
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val = false
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} else {
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return fmt.Errorf("invalid bool expression: %v, use true/false", defaultValue)
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}
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case reflect.Int:
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val, err = strconv.Atoi(defaultValue)
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if err != nil {
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return err
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}
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default:
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val = field.Value()
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}
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field.Set(val)
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}
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return nil
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}
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func GenerateFlags(options ...interface{}) (flags []cli.Flag, mappings map[string]string, err error) {
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mappings = make(map[string]string)
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for _, struct_ := range options {
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o := structs.New(struct_)
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for _, field := range o.Fields() {
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flagName := field.Tag("flagName")
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if flagName == "" {
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continue
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}
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envName := "CROC_" + strings.ToUpper(strings.Join(strings.Split(flagName, "-"), "_"))
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mappings[flagName] = field.Name()
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flagShortName := field.Tag("flagSName")
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if flagShortName != "" {
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flagName += ", " + flagShortName
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}
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flagDescription := field.Tag("flagDescribe")
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switch field.Kind() {
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case reflect.String:
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flags = append(flags, cli.StringFlag{
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Name: flagName,
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Value: field.Value().(string),
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Usage: flagDescription,
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EnvVar: envName,
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})
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case reflect.Bool:
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flags = append(flags, cli.BoolFlag{
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Name: flagName,
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Usage: flagDescription,
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EnvVar: envName,
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})
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case reflect.Int:
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flags = append(flags, cli.IntFlag{
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Name: flagName,
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Value: field.Value().(int),
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Usage: flagDescription,
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EnvVar: envName,
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})
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}
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}
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}
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return
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}
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func ApplyFlags(
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flags []cli.Flag,
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mappingHint map[string]string,
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c *cli.Context,
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options ...interface{},
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) {
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objects := make([]*structs.Struct, len(options))
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for i, struct_ := range options {
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objects[i] = structs.New(struct_)
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}
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for flagName, fieldName := range mappingHint {
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if !c.IsSet(flagName) {
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continue
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}
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var field *structs.Field
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var ok bool
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for _, o := range objects {
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field, ok = o.FieldOk(fieldName)
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if ok {
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break
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}
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}
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if field == nil {
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continue
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}
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var val interface{}
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switch field.Kind() {
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case reflect.String:
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val = c.String(flagName)
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case reflect.Bool:
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val = c.Bool(flagName)
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case reflect.Int:
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val = c.Int(flagName)
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}
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field.Set(val)
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}
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}
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func ApplyConfigFile(filePath string, options ...interface{}) error {
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filePath = homedir.Expand(filePath)
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if _, err := os.Stat(filePath); os.IsNotExist(err) {
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return err
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}
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fileString := []byte{}
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log.Debugf("Loading config file at: %s", filePath)
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fileString, err := ioutil.ReadFile(filePath)
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if err != nil {
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return err
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}
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for _, object := range options {
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if err := hcl.Decode(object, string(fileString)); err != nil {
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return err
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}
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}
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return nil
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}
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func ApplyConfigFileYaml(filePath string, options ...interface{}) error {
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filePath = homedir.Expand(filePath)
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if _, err := os.Stat(filePath); os.IsNotExist(err) {
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return err
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}
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fileString := []byte{}
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log.Debugf("Loading config file at: %s", filePath)
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fileString, err := ioutil.ReadFile(filePath)
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if err != nil {
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return err
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}
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for _, object := range options {
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if err := yaml.Unmarshal(fileString, object); err != nil {
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return err
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}
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}
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return nil
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}
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func SaveConfigFileYaml(filePath string, options ...interface{}) error {
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filePath = homedir.Expand(filePath)
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if _, err := os.Stat(filePath); os.IsNotExist(err) {
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return err
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}
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fd, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE, 0644)
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if err != nil {
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return err
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}
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defer fd.Close()
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for _, object := range options {
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if byteString, err := yaml.Marshal(object); err != nil {
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return err
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} else {
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fd.Write(byteString)
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}
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}
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return nil
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}
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var helpTemplate = `
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,_
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>' )
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( ( \
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|| \
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/^^^^\ ||
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/^^\________/0 \ ||
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( ` + "`" + `~+++,,_||__,,++~^^^^^^^
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...V^V^V^V^V^V^\...............................
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NAME:
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{{.Name}} - {{.Usage}}
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USAGE:
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{{.Name}} [options]
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VERSION:
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{{.Version}}{{if or .Author .Email}}
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AUTHOR:{{if .Author}}
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{{.Author}}{{if .Email}} - <{{.Email}}>{{end}}{{else}}
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{{.Email}}{{end}}{{end}}
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OPTIONS:
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{{range .Flags}}{{.}}
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{{end}}
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`
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// SetLogLevel determines the log level
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func SetLogLevel(level string) (err error) {
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// https://en.wikipedia.org/wiki/ANSI_escape_code#3/4_bit
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// https://github.com/cihub/seelog/wiki/Log-levels
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appConfig := `
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<seelog minlevel="` + level + `">
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<outputs formatid="stdout">
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<filter levels="debug,trace">
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<console formatid="debug"/>
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</filter>
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<filter levels="info">
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<console formatid="info"/>
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</filter>
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<filter levels="critical,error">
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<console formatid="error"/>
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</filter>
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<filter levels="warn">
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<console formatid="warn"/>
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</filter>
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</outputs>
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<formats>
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<format id="stdout" format="%Date %Time [%LEVEL] %File %FuncShort:%Line %Msg %n" />
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<format id="debug" format="%Date %Time %EscM(37)[%LEVEL]%EscM(0) %File %FuncShort:%Line %Msg %n" />
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<format id="info" format="%EscM(36)[%LEVEL]%EscM(0) %Msg %n" />
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<format id="warn" format="%Date %Time %EscM(33)[%LEVEL]%EscM(0) %File %FuncShort:%Line %Msg %n" />
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<format id="error" format="%Date %Time %EscM(31)[%LEVEL]%EscM(0) %File %FuncShort:%Line %Msg %n" />
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</formats>
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</seelog>
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`
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logger, err := log.LoggerFromConfigAsBytes([]byte(appConfig))
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if err != nil {
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return
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}
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log.ReplaceLogger(logger)
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return
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}
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