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monitor: add long help for commands

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Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
This commit is contained in:
Kohei Tokunaga
2023-05-29 23:16:27 +09:00
parent 17bdbbd3c3
commit cafeedba79
10 changed files with 118 additions and 19 deletions
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43
monitor/monitor.go
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@ -85,18 +85,22 @@ func RunMonitor(ctx context.Context, curRef string, options *controllerapi.Build
id := m.Rollback(ctx, invokeConfig)
fmt.Fprintf(stdout, "Interactive container was restarted with process %q. Press Ctrl-a-c to switch to the new container\n", id)
registeredCommands := map[string]types.Command{
"reload": commands.NewReloadCmd(m, stdout, progress, options, invokeConfig),
"rollback": commands.NewRollbackCmd(m, invokeConfig, stdout),
"list": commands.NewListCmd(m, stdout),
"disconnect": commands.NewDisconnectCmd(m),
"kill": commands.NewKillCmd(m),
"attach": commands.NewAttachCmd(m, stdout),
"exec": commands.NewExecCmd(m, invokeConfig, stdout),
"ps": commands.NewPsCmd(m, stdout),
availableCommands := []types.Command{
commands.NewReloadCmd(m, stdout, progress, options, invokeConfig),
commands.NewRollbackCmd(m, invokeConfig, stdout),
commands.NewListCmd(m, stdout),
commands.NewDisconnectCmd(m),
commands.NewKillCmd(m),
commands.NewAttachCmd(m, stdout),
commands.NewExecCmd(m, invokeConfig, stdout),
commands.NewPsCmd(m, stdout),
}
registeredCommands := make(map[string]types.Command)
for _, c := range availableCommands {
registeredCommands[c.Info().Name] = c
}
additionalHelpMessages := map[string]string{
"help": "shows this message",
"help": "shows this message. Optionally pass a command name as an argument to print the detailed usage.",
"exit": "exits monitor",
}
@ -141,6 +145,10 @@ func RunMonitor(ctx context.Context, curRef string, options *controllerapi.Build
case "exit":
return
case "help":
if len(args) >= 2 {
printHelpMessageOfCommand(stdout, args[1], registeredCommands, additionalHelpMessages)
continue
}
printHelpMessage(stdout, registeredCommands, additionalHelpMessages)
continue
default:
@ -171,6 +179,21 @@ func RunMonitor(ctx context.Context, curRef string, options *controllerapi.Build
}
}
func printHelpMessageOfCommand(out io.Writer, name string, registeredCommands map[string]types.Command, additional map[string]string) {
var target types.Command
if c, ok := registeredCommands[name]; ok {
target = c
} else {
fmt.Fprintf(out, "monitor: no help message for %q\n", name)
printHelpMessage(out, registeredCommands, additional)
return
}
fmt.Fprintln(out, target.Info().HelpMessage)
if h := target.Info().HelpMessageLong; h != "" {
fmt.Fprintln(out, h)
}
}
func printHelpMessage(out io.Writer, registeredCommands map[string]types.Command, additional map[string]string) {
var names []string
for name := range registeredCommands {