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
use crates_io_api::{SyncClient, Version};
use serde::Deserialize;
use thiserror;
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("Unable to find crate")]
CrateDoesNotExist,
#[error("Versions Do not exist on crates.io")]
VersionDoesNotExistCratesIO,
#[error("Version does not exist on Cargo.toml")]
VersionDoesNotExist,
#[error("Cargo.Toml does not contain name")]
NameDoesNotExist,
}
#[derive(Deserialize)]
struct CargoToml {
package: Package
}
#[derive(Deserialize)]
struct Package {
name: Option<String>,
version: Option<String>,
}
fn get_latest_version(crate_name: &str) -> Result<String, Box<dyn std::error::Error>> {
let client = SyncClient::new();
let retrieved_crate = match client.get_crate(crate_name) {
Ok(val) => val,
Err(_) => Err(Error::CrateDoesNotExist)?
};
let versions: Vec<Version> = retrieved_crate.versions;
match versions.first() {
Some(version) => Ok(version.num.clone()),
None => Err(Error::VersionDoesNotExistCratesIO)?
}
}
pub fn check_version(name: &str, current_version: &str) -> Result<(), Box<dyn std::error::Error>> {
let latest_version = get_latest_version(name)?;
if latest_version != current_version {
println!("Version {} is available!", latest_version);
}
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_latest_version() {
let latest_version = get_latest_version("asdev").unwrap();
assert_eq!(latest_version, "0.1.3")
}
#[test]
fn test_not_current_version() {
check_version("asdev", "0.1.2").unwrap();
}
}