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a49711b8bf
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
53 lines
1.1 KiB
Go
53 lines
1.1 KiB
Go
package command
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import (
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"fmt"
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)
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// LeaveCommand is a Command implementation that instructs
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// the Consul agent to gracefully leave the cluster
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type LeaveCommand struct {
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BaseCommand
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}
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func (c *LeaveCommand) Help() string {
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c.InitFlagSet()
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return c.HelpCommand(`
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Usage: consul leave [options]
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Causes the agent to gracefully leave the Consul cluster and shutdown.
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`)
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}
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func (c *LeaveCommand) Run(args []string) int {
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c.InitFlagSet()
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if err := c.FlagSet.Parse(args); err != nil {
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return 1
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}
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nonFlagArgs := c.FlagSet.Args()
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if len(nonFlagArgs) > 0 {
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c.UI.Error(fmt.Sprintf("Error found unexpected args: %v", nonFlagArgs))
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c.UI.Output(c.Help())
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return 1
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}
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client, err := c.HTTPClient()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
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return 1
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}
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if err := client.Agent().Leave(); err != nil {
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c.UI.Error(fmt.Sprintf("Error leaving: %s", err))
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return 1
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}
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c.UI.Output("Graceful leave complete")
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return 0
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}
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func (c *LeaveCommand) Synopsis() string {
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return "Gracefully leaves the Consul cluster and shuts down"
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}
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