mirror of
https://github.com/docker/compose.git
synced 2025-10-31 03:03:49 +01:00
126 lines
3.3 KiB
Go
126 lines
3.3 KiB
Go
/*
|
|
Copyright 2020 Docker Compose CLI authors
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package mobycli
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"os/exec"
|
|
"os/signal"
|
|
"regexp"
|
|
|
|
"github.com/spf13/cobra"
|
|
|
|
apicontext "github.com/docker/compose-cli/api/context"
|
|
"github.com/docker/compose-cli/api/context/store"
|
|
"github.com/docker/compose-cli/cli/metrics"
|
|
"github.com/docker/compose-cli/cli/mobycli/resolvepath"
|
|
)
|
|
|
|
var delegatedContextTypes = []string{store.DefaultContextType}
|
|
|
|
// ComDockerCli name of the classic cli binary
|
|
const ComDockerCli = "com.docker.cli"
|
|
|
|
// ExecIfDefaultCtxType delegates to com.docker.cli if on moby context
|
|
func ExecIfDefaultCtxType(ctx context.Context, root *cobra.Command) {
|
|
currentContext := apicontext.CurrentContext(ctx)
|
|
|
|
s := store.ContextStore(ctx)
|
|
|
|
currentCtx, err := s.Get(currentContext)
|
|
// Only run original docker command if the current context is not ours.
|
|
if err != nil || mustDelegateToMoby(currentCtx.Type()) {
|
|
Exec(root)
|
|
}
|
|
}
|
|
|
|
func mustDelegateToMoby(ctxType string) bool {
|
|
for _, ctype := range delegatedContextTypes {
|
|
if ctxType == ctype {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// Exec delegates to com.docker.cli if on moby context
|
|
func Exec(root *cobra.Command) {
|
|
execBinary, err := resolvepath.LookPath(ComDockerCli)
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
os.Exit(1)
|
|
}
|
|
cmd := exec.Command(execBinary, os.Args[1:]...)
|
|
cmd.Stdin = os.Stdin
|
|
cmd.Stdout = os.Stdout
|
|
cmd.Stderr = os.Stderr
|
|
|
|
signals := make(chan os.Signal, 1)
|
|
childExit := make(chan bool)
|
|
signal.Notify(signals) // catch all signals
|
|
go func() {
|
|
for {
|
|
select {
|
|
case sig := <-signals:
|
|
if cmd.Process == nil {
|
|
continue // can happen if receiving signal before the process is actually started
|
|
}
|
|
// nolint errcheck
|
|
cmd.Process.Signal(sig)
|
|
case <-childExit:
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
|
|
err = cmd.Run()
|
|
childExit <- true
|
|
if err != nil {
|
|
metrics.Track(store.DefaultContextType, os.Args[1:], metrics.FailureStatus)
|
|
|
|
if exiterr, ok := err.(*exec.ExitError); ok {
|
|
os.Exit(exiterr.ExitCode())
|
|
}
|
|
fmt.Fprintln(os.Stderr, err)
|
|
os.Exit(1)
|
|
}
|
|
metrics.Track(store.DefaultContextType, os.Args[1:], metrics.SuccessStatus)
|
|
|
|
os.Exit(0)
|
|
}
|
|
|
|
// IsDefaultContextCommand checks if the command exists in the classic cli (issues a shellout --help)
|
|
func IsDefaultContextCommand(dockerCommand string) bool {
|
|
cmd := exec.Command(ComDockerCli, dockerCommand, "--help")
|
|
b, e := cmd.CombinedOutput()
|
|
if e != nil {
|
|
fmt.Println(e)
|
|
}
|
|
return regexp.MustCompile("Usage:\\s*docker\\s*" + dockerCommand).Match(b)
|
|
}
|
|
|
|
// ExecSilent executes a command and do redirect output to stdOut, return output
|
|
func ExecSilent(ctx context.Context, args ...string) ([]byte, error) {
|
|
if len(args) == 0 {
|
|
args = os.Args[1:]
|
|
}
|
|
cmd := exec.CommandContext(ctx, ComDockerCli, args...)
|
|
return cmd.CombinedOutput()
|
|
}
|