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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
use crate::exercise::{Exercise, ExerciseList};
use crate::run::run;
use crate::verify::verify;
use clap::{crate_version, App, Arg, SubCommand};
use notify::DebouncedEvent;
use notify::{RecommendedWatcher, RecursiveMode, Watcher};
use std::ffi::OsStr;
use std::fs;
use std::io::BufRead;
use std::path::Path;
use std::sync::mpsc::channel;
use std::time::Duration;
use syntect::easy::HighlightFile;
use syntect::highlighting::{Style, ThemeSet};
use syntect::parsing::SyntaxSet;
use syntect::util::as_24_bit_terminal_escaped;
mod exercise;
mod run;
mod verify;
fn main() {
let matches = App::new("rustlings")
.version(crate_version!())
.author("Olivia Hugger, Carol Nichols")
.about("Rustlings is a collection of small exercises to get you used to writing and reading Rust code")
.subcommand(SubCommand::with_name("verify").alias("v").about("Verifies all exercises according to the recommended order"))
.subcommand(SubCommand::with_name("watch").alias("w").about("Reruns `verify` when files were edited"))
.subcommand(
SubCommand::with_name("run")
.alias("r")
.about("Runs/Tests a single exercise")
.arg(Arg::with_name("file").required(true).index(1))
.arg(Arg::with_name("test").short("t").long("test").help("Run the file as a test")),
)
.get_matches();
let ss = SyntaxSet::load_defaults_newlines();
let ts = ThemeSet::load_defaults();
if None == matches.subcommand_name() {
println!();
println!(r#" welcome to... "#);
println!(r#" _ _ _ "#);
println!(r#" _ __ _ _ ___| |_| (_)_ __ __ _ ___ "#);
println!(r#" | '__| | | / __| __| | | '_ \ / _` / __| "#);
println!(r#" | | | |_| \__ \ |_| | | | | | (_| \__ \ "#);
println!(r#" |_| \__,_|___/\__|_|_|_| |_|\__, |___/ "#);
println!(r#" |___/ "#);
println!();
}
if !Path::new("info.toml").exists() {
println!(
"{} must be run from the rustlings directory",
std::env::current_exe().unwrap().to_str().unwrap()
);
std::process::exit(1);
}
let toml_str = &fs::read_to_string("info.toml").unwrap();
let exercises = toml::from_str::<ExerciseList>(toml_str).unwrap().exercises;
if let Some(ref matches) = matches.subcommand_matches("run") {
let filename = matches.value_of("file").unwrap_or_else(|| {
println!("Please supply a file name!");
std::process::exit(1);
});
let matching_exercise = |e: &&Exercise| {
Path::new(filename)
.canonicalize()
.map(|p| p.ends_with(&e.path))
.unwrap_or(false)
};
let exercise = exercises.iter().find(matching_exercise).unwrap_or_else(|| {
println!("No exercise found for your file name!");
std::process::exit(1)
});
run(&exercise).unwrap_or_else(|_| std::process::exit(1));
}
if matches.subcommand_matches("verify").is_some() {
verify(&exercises).unwrap_or_else(|_| std::process::exit(1));
}
if matches.subcommand_matches("watch").is_some() {
watch(&exercises).unwrap();
}
if matches.subcommand_name().is_none() {
let mut highlighter =
HighlightFile::new("default_out.md", &ss, &ts.themes["base16-eighties.dark"]).unwrap();
for maybe_line in highlighter.reader.lines() {
let line = maybe_line.unwrap();
let regions: Vec<(Style, &str)> = highlighter.highlight_lines.highlight(&line, &ss);
println!("{}", as_24_bit_terminal_escaped(®ions[..], true));
}
}
println!("\x1b[0m");
}
fn watch(exercises: &[Exercise]) -> notify::Result<()> {
let (tx, rx) = channel();
let mut watcher: RecommendedWatcher = Watcher::new(tx, Duration::from_secs(2))?;
watcher.watch(Path::new("./exercises"), RecursiveMode::Recursive)?;
let _ignored = verify(exercises.iter());
loop {
match rx.recv() {
Ok(event) => match event {
DebouncedEvent::Create(b) | DebouncedEvent::Chmod(b) | DebouncedEvent::Write(b) => {
if b.extension() == Some(OsStr::new("rs")) {
println!("----------**********----------\n");
let filepath = b.as_path().canonicalize().unwrap();
let exercise = exercises
.iter()
.skip_while(|e| !filepath.ends_with(&e.path));
let _ignored = verify(exercise);
}
}
_ => {}
},
Err(e) => println!("watch error: {:?}", e),
}
}
}
|
