open-consul/command/reload.go
Frank Schroeder 7568a19433 config: refactor commands to print help for flags (#3536)
This patch refactors the commands that use the mitchellh/cli library to
populate the command line flag set in both the Run() and the Help()
method. Earlier versions of the mitchellh/cli library relied on the
Run() method to populuate the flagset for generating the usage screen.
This has changed in later versions and was previously solved with a
small monkey patch to the library to restore the old behavior.

However, this makes upgrading the library difficult since the patch has
to be restored every time.

This patch addresses this by moving the command line flags into an
initFlags() method where appropriate and also moving all variables for
the flags from the Run() method into the command itself.

Fixes #3536
2017-10-18 00:08:45 +02:00

48 lines
955 B
Go

package command
import (
"fmt"
)
// ReloadCommand is a Command implementation that instructs
// the Consul agent to reload configurations
type ReloadCommand struct {
BaseCommand
}
func (c *ReloadCommand) Help() string {
c.InitFlagSet()
return c.HelpCommand(`
Usage: consul reload
Causes the agent to reload configurations. This can be used instead
of sending the SIGHUP signal to the agent.
`)
}
func (c *ReloadCommand) Run(args []string) int {
c.InitFlagSet()
if err := c.FlagSet.Parse(args); err != nil {
return 1
}
client, err := c.HTTPClient()
if err != nil {
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
return 1
}
if err := client.Agent().Reload(); err != nil {
c.UI.Error(fmt.Sprintf("Error reloading: %s", err))
return 1
}
c.UI.Output("Configuration reload triggered")
return 0
}
func (c *ReloadCommand) Synopsis() string {
return "Triggers the agent to reload configuration files"
}