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
use std;
use serde_json;
use reqwest;
use semver;
pub type Result<T> = std::result::Result<T, Error>;
#[derive(Debug)]
pub enum Error {
Update(String),
Network(String),
Release(String),
Config(String),
Io(std::io::Error),
Json(serde_json::Error),
Reqwest(reqwest::Error),
SemVer(semver::SemVerError),
}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
use Error::*;
match *self {
Update(ref s) => write!(f, "UpdateError: {}", s),
Network(ref s) => write!(f, "NetworkError: {}", s),
Release(ref s) => write!(f, "ReleaseError: {}", s),
Config(ref s) => write!(f, "ConfigError: {}", s),
Io(ref e) => write!(f, "IoError: {}", e),
Json(ref e) => write!(f, "JsonError: {}", e),
Reqwest(ref e) => write!(f, "ReqwestError: {}", e),
SemVer(ref e) => write!(f, "SemVerError: {}", e),
}
}
}
impl std::error::Error for Error {
fn description(&self) -> &str {
"Self Update Error"
}
fn cause(&self) -> Option<&std::error::Error> {
use Error::*;
Some(match *self {
Io(ref e) => e,
Json(ref e) => e,
Reqwest(ref e) => e,
SemVer(ref e) => e,
_ => return None,
})
}
}
impl From<std::io::Error> for Error {
fn from(e: std::io::Error) -> Error {
Error::Io(e)
}
}
impl From<serde_json::Error> for Error {
fn from(e: serde_json::Error) -> Error {
Error::Json(e)
}
}
impl From<reqwest::Error> for Error {
fn from(e: reqwest::Error) -> Error {
Error::Reqwest(e)
}
}
impl From<semver::SemVerError> for Error {
fn from(e: semver::SemVerError) -> Error {
Error::SemVer(e)
}
}