mirror of https://github.com/docker/compose.git
132 lines
3.3 KiB
Go
132 lines
3.3 KiB
Go
/*
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Copyright (c) 2019 Docker Inc.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH
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THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package main
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import (
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"fmt"
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"io"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"sort"
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"github.com/docker/api/context"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli/v2"
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)
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func init() {
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// initial hack to get the path of the project's bin dir
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// into the env of this cli for development
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path, err := filepath.Abs(filepath.Dir(os.Args[0]))
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if err != nil {
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log.Fatal(err)
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}
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if err := os.Setenv("PATH", fmt.Sprintf("%s:%s", os.Getenv("PATH"),path)); err != nil {
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panic(err)
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}
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}
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func main() {
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app := cli.NewApp()
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app.Name = "docker"
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app.Usage = "Docker for the 2020s"
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app.UseShortOptionHandling = true
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app.EnableBashCompletion = true
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app.Flags = []cli.Flag{
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&cli.BoolFlag{
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Name: "debug",
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Usage: "enable debug output in the logs",
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},
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&context.ConfigFlag,
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&context.ContextFlag,
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}
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// Make a copy of the default HelpPrinter function
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originalHelpPrinter := cli.HelpPrinter
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// Change the HelpPrinter function to shell out to the Moby CLI help
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// when the current context is pointing to Docker engine
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// else we use the copy of the original HelpPrinter
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cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
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ctx, err := context.GetContext()
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if err != nil {
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logrus.Fatal(err)
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}
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if ctx.Metadata.Type == "Moby" {
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shellOutToDefaultEngine()
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} else {
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originalHelpPrinter(w, templ, data)
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}
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}
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app.Before = func(clix *cli.Context) error {
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if clix.Bool("debug") {
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logrus.SetLevel(logrus.DebugLevel)
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}
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ctx, err := context.GetContext()
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if err != nil {
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logrus.Fatal(err)
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}
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if ctx.Metadata.Type == "Moby" {
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shellOutToDefaultEngine()
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}
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// TODO select backend based on context.Metadata.Type
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return nil
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}
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app.Commands = []*cli.Command{
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&contextCommand,
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&exampleCommand,
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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.Run(os.Args); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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func shellOutToDefaultEngine() {
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cmd := exec.Command("docker", os.Args[1:]...)
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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if err := cmd.Run(); err != nil {
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if err != nil {
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if exiterr, ok := err.(*exec.ExitError); ok {
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os.Exit(exiterr.ExitCode())
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}
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os.Exit(1)
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}
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}
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os.Exit(0)
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}
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