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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
use std::env;
use std::fs;
use std::path::PathBuf;
use std::process::Command;

use anyhow::Result;
use tinytemplate::TinyTemplate;

use crate::config::{Context, Dependencies};

const BUILD_TEMPLATE: &'static str = include_str!("./templates/elixir/mix.exs.tmpl");
const SOURCE_TEMPLATE: &'static str = include_str!("./templates/elixir/parser.ex.tmpl");

fn generate_templates(deps: Dependencies) -> Result<Vec<(&'static str, String)>> {
    let mut template = TinyTemplate::new();
    template.add_template("mix.exs", BUILD_TEMPLATE)?;
    template.add_template("parser.ex", SOURCE_TEMPLATE)?;

    let build_template = template
        .render("mix.exs", &Context { deps: deps.clone() })
        .unwrap();

    let source_template = template
        .render("parser.ex", &Context { deps })
        .unwrap();

    let mut templates = Vec::new();

    templates.push(("mix.exs", build_template));
    templates.push(("lib/parser.ex", source_template));

    Ok(templates)
}

pub fn write_project(path: String, deps: Dependencies) -> Result<()> {
    println!("Generating mix project...");

    let folder_path = PathBuf::from(path);

    let templates = generate_templates(deps.clone())?;

    let (build_path, build_template) = templates.get(0).unwrap();
    let (source_path, source_template) = templates.get(1).unwrap();

    fs::create_dir_all(folder_path.clone())?;
    env::set_current_dir(folder_path.clone())?;
    fs::write(build_path, build_template)?;
    fs::create_dir(PathBuf::from("lib"))?;
    fs::write(source_path, source_template)?;

    Ok(())
}

pub fn run(shell: bool) -> Result<()> {
    let stdout = os_pipe::dup_stdout()?;
    let mut mix = Command::new("mix")
        .args(&["do", "deps.get,", "deps.compile"])
        .stdout(stdout)
        .spawn()?;

    let _ = mix.wait();

    if shell {
        let stdout = os_pipe::dup_stdout()?;
        let mut iex_command = Command::new("iex")
            .args(&["-S", "mix"])
            .stdout(stdout)
            .stdin(os_pipe::dup_stdin().unwrap())
            .spawn()?;

        let _ = iex_command.wait();
    }

    Ok(())
}