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Move cmd.utils into their own package
Signed-off-by: Andrea Luzzardi <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package util | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "os/exec" | ||
| "path" | ||
| "strings" | ||
| "syscall" | ||
| "time" | ||
|
|
||
| "github.com/blocklayerhq/chainkit/project" | ||
| "github.com/blocklayerhq/chainkit/ui" | ||
| ) | ||
|
|
||
| // DockerRun runs a command within the project's container. | ||
| func DockerRun(ctx context.Context, p *project.Project, args ...string) error { | ||
| var ( | ||
| daemonDirContainer = path.Join("/", "root", "."+p.Binaries.Daemon) | ||
| cliDirContainer = path.Join("/", "root", "."+p.Binaries.CLI) | ||
| ) | ||
|
|
||
| cmd := []string{ | ||
| "run", "--rm", | ||
| "-p", fmt.Sprintf("%d:26656", p.Ports.TendermintP2P), | ||
| "-p", fmt.Sprintf("%d:26657", p.Ports.TendermintRPC), | ||
| "-v", p.StateDir() + ":" + daemonDirContainer, | ||
| "-v", p.CLIDir() + ":" + cliDirContainer, | ||
| "--name", p.Image, | ||
| p.Image + ":latest", | ||
| p.Binaries.Daemon, | ||
| } | ||
| cmd = append(cmd, args...) | ||
|
|
||
| return Run(ctx, "docker", cmd...) | ||
| } | ||
|
|
||
| // Run runs a system command. | ||
| func Run(ctx context.Context, command string, args ...string) error { | ||
| return RunWithFD(ctx, os.Stdin, os.Stdout, os.Stderr, command, args...) | ||
| } | ||
|
|
||
| // RunWithFD is like Run, but accepts custom stdin/stdout/stderr. | ||
| func RunWithFD(ctx context.Context, stdin io.Reader, stdout, stderr io.Writer, command string, args ...string) error { | ||
| ui.Verbose("$ %s %s", command, strings.Join(args, " ")) | ||
| cmd := exec.Command(command) | ||
| cmd.Args = append([]string{command}, args...) | ||
| cmd.Stdin = stdin | ||
| cmd.Stdout = stdout | ||
| cmd.Stderr = stderr | ||
|
|
||
| if err := cmd.Start(); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // We don't use exec.CommandContext here because it will | ||
| // SIGKILL the process. Instead, we handle the context | ||
| // on our own and try to gracefully shutdown the command. | ||
| waitDone := make(chan struct{}) | ||
| go func() { | ||
| select { | ||
| case <-ctx.Done(): | ||
| cmd.Process.Signal(syscall.SIGTERM) | ||
| select { | ||
| case <-time.After(5 * time.Second): | ||
| cmd.Process.Kill() | ||
| case <-waitDone: | ||
| } | ||
| case <-waitDone: | ||
| } | ||
| }() | ||
|
|
||
| err := cmd.Wait() | ||
| close(waitDone) | ||
| return err | ||
| } |