duck-template 0.1.1

A cli tool for generating files from a template just with a json file
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

use std::process;

use crate::logger::{log, LogLevel};

pub fn get_flag_value(args: &[String], idx: usize, flag: &str) -> Option<String> {
  match args.get(idx) {
    Some(val) if val.starts_with('-') => {
      log(
        LogLevel::Error,
        &format!(
          "Expected a value after '{}', but got another flag '{}'",
          flag, val
        ),
      );
      process::exit(1);
    },
    Some(val) => Some(val.clone()),
    None => {
      log(
        LogLevel::Error,
        &format!(
          "Expected a value after '{}', but nothing was provided",
          flag
        ),
      );
      process::exit(1);
    },
  }
}