108 lines
2.2 KiB
Go
108 lines
2.2 KiB
Go
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package command
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import (
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"context"
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"fmt"
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"os"
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"sort"
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"time"
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"github.com/pkg/errors"
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"github.com/urfave/cli/v2"
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)
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func Main(buildDate, projectVersion, gitRef, defaultConfigPath string, commands ...*cli.Command) {
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ctx := context.Background()
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compiled, err := time.Parse(time.RFC3339, buildDate)
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if err != nil {
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panic(errors.Wrapf(err, "could not parse build date '%s'", buildDate))
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}
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app := &cli.App{
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Version: fmt.Sprintf("%s (%s, %s)", projectVersion, gitRef, buildDate),
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Compiled: compiled,
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Name: "emissary",
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Usage: "Control plane for edge devices",
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Commands: commands,
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Before: func(ctx *cli.Context) error {
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workdir := ctx.String("workdir")
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// Switch to new working directory if defined
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if workdir != "" {
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if err := os.Chdir(workdir); err != nil {
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return errors.Wrap(err, "could not change working directory")
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}
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}
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if err := ctx.Set("projectVersion", projectVersion); err != nil {
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return errors.WithStack(err)
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}
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if err := ctx.Set("gitRef", gitRef); err != nil {
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return errors.WithStack(err)
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}
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if err := ctx.Set("buildDate", buildDate); err != nil {
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return errors.WithStack(err)
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}
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return nil
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},
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "workdir",
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Value: "",
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Usage: "The working directory",
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},
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&cli.StringFlag{
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Name: "projectVersion",
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Value: "",
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Hidden: true,
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},
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&cli.StringFlag{
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Name: "gitRef",
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Value: "",
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Hidden: true,
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},
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&cli.StringFlag{
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Name: "buildDate",
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Value: "",
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Hidden: true,
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},
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&cli.BoolFlag{
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Name: "debug",
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EnvVars: []string{"EMISSARY_DEBUG"},
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Value: false,
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},
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&cli.StringFlag{
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Name: "config",
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Aliases: []string{"c"},
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EnvVars: []string{"EMISSARY_CONFIG"},
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Value: defaultConfigPath,
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TakesFile: true,
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},
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},
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}
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app.ExitErrHandler = func(ctx *cli.Context, err error) {
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if err == nil {
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return
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}
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debug := ctx.Bool("debug")
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if !debug {
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fmt.Printf("[ERROR] %v\n", err)
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} else {
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fmt.Printf("%+v", err)
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}
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}
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sort.Sort(cli.FlagsByName(app.Flags))
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sort.Sort(cli.CommandsByName(app.Commands))
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if err := app.RunContext(ctx, os.Args); err != nil {
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os.Exit(1)
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}
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}
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