leven 0.3.0

Make your own blog!
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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55

use error::{Error, Result};
use std::{io, fs};
use std::process::Command;
use util::cd2root;

fn theme(repo: &str) -> Result<()> {
    cd2root()?;

    // Delete `theme` if it exists.

    if let Err(e) = fs::remove_dir_all("theme") {
        if e.kind() != io::ErrorKind::NotFound {
            return Err(e.into());
        }
    }

    // Build the path.

    let mut path = String::new();

    if github_like(repo) {
        path.push_str("https://github.com/");
    }

    path.push_str(repo);

    // Clone `path` into `theme`.

    let status = Command::new("git")
        .arg("clone")
        .arg(&path)
        .arg("theme")
        .status()?;

    if !status.success() {
        return Err(Error::ExternalProcess);
    }

    Ok(())
}

fn github_like(repo: &str) -> bool {
    // Has only one slash.
    repo.chars().filter(|&c| c == '/').count() == 1 &&
    // That slash neither the first nor the last character.
    repo.chars().next() != Some('/') &&
    repo.chars().last() != Some('/')
}

pub fn execute(repo: &str) {
    match theme(repo) {
        Ok(()) => info!("theme changed"),
        Err(e) => error!("theme change failed ({})", e),
    }
}