git.r.bdr.sh - rbdr/blog/blob - src/command/help.rs

   1 use std::io::Result;
   2 use super::available_commands;
   3 use crate::configuration::Configuration;
   4
   5 pub struct Help;
   6
   7 impl Help {
   8     pub fn new() -> Self {
   9         Help
  10     }
  11 }
  12
  13 impl super::Command for Help {
  14     fn before_dependencies(&self) -> Vec<Box<dyn super::Command>> {
  15         vec![]
  16     }
  17
  18     fn execute(&self, _: Option<&String>, _: &Configuration, _: &String) -> Result<()> {
  19         let commands = available_commands();
  20         println!("Usage:");
  21         println!("");
  22         for command in commands {
  23             print!("blog {} ", command.command());
  24             println!("{}", command.help());
  25         }
  26         return Ok(())
  27     }
  28
  29     fn after_dependencies(&self) -> Vec<Box<dyn super::Command>> {
  30         vec![]
  31     }
  32
  33     fn command(&self) -> &'static str {
  34         "help"
  35     }
  36
  37     fn help(&self) -> &'static str {
  38         "\t\t\t\tPrints this help"
  39     }
  40 }