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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
#![allow(unknown_lints)]
use anyhow::Error;
use std::fmt;
use std::path::PathBuf;
use super::truncate_with_ellipsis;
pub type CargoResult<T> = anyhow::Result<T>;
#[derive(Debug)]
pub struct HttpNotSuccessful {
pub code: u32,
pub url: String,
pub body: Vec<u8>,
}
impl fmt::Display for HttpNotSuccessful {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let body = std::str::from_utf8(&self.body)
.map(|s| truncate_with_ellipsis(s, 512))
.unwrap_or_else(|_| format!("[{} non-utf8 bytes]", self.body.len()));
write!(
f,
"failed to get successful HTTP response from `{}`, got {}\nbody:\n{body}",
self.url, self.code
)
}
}
impl std::error::Error for HttpNotSuccessful {}
pub struct VerboseError {
inner: Error,
}
impl VerboseError {
pub fn new(inner: Error) -> VerboseError {
VerboseError { inner }
}
}
impl std::error::Error for VerboseError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
self.inner.source()
}
}
impl fmt::Debug for VerboseError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}
impl fmt::Display for VerboseError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}
pub struct InternalError {
inner: Error,
}
impl InternalError {
pub fn new(inner: Error) -> InternalError {
InternalError { inner }
}
}
impl std::error::Error for InternalError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
self.inner.source()
}
}
impl fmt::Debug for InternalError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}
impl fmt::Display for InternalError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}
pub struct AlreadyPrintedError {
inner: Error,
}
impl AlreadyPrintedError {
pub fn new(inner: Error) -> Self {
AlreadyPrintedError { inner }
}
}
impl std::error::Error for AlreadyPrintedError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
self.inner.source()
}
}
impl fmt::Debug for AlreadyPrintedError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}
impl fmt::Display for AlreadyPrintedError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.inner.fmt(f)
}
}
pub struct ManifestError {
cause: Error,
manifest: PathBuf,
}
impl ManifestError {
pub fn new<E: Into<Error>>(cause: E, manifest: PathBuf) -> Self {
Self {
cause: cause.into(),
manifest,
}
}
pub fn manifest_path(&self) -> &PathBuf {
&self.manifest
}
pub fn manifest_causes(&self) -> ManifestCauses<'_> {
ManifestCauses { current: self }
}
}
impl std::error::Error for ManifestError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
self.cause.source()
}
}
impl fmt::Debug for ManifestError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.cause.fmt(f)
}
}
impl fmt::Display for ManifestError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.cause.fmt(f)
}
}
pub struct ManifestCauses<'a> {
current: &'a ManifestError,
}
impl<'a> Iterator for ManifestCauses<'a> {
type Item = &'a ManifestError;
fn next(&mut self) -> Option<Self::Item> {
self.current = self.current.cause.downcast_ref()?;
Some(self.current)
}
}
impl<'a> ::std::iter::FusedIterator for ManifestCauses<'a> {}
pub type CliResult = Result<(), CliError>;
#[derive(Debug)]
pub struct CliError {
pub error: Option<anyhow::Error>,
pub exit_code: i32,
}
impl CliError {
pub fn new(error: anyhow::Error, code: i32) -> CliError {
CliError {
error: Some(error),
exit_code: code,
}
}
pub fn code(code: i32) -> CliError {
CliError {
error: None,
exit_code: code,
}
}
}
impl From<anyhow::Error> for CliError {
fn from(err: anyhow::Error) -> CliError {
CliError::new(err, 101)
}
}
impl From<clap::Error> for CliError {
fn from(err: clap::Error) -> CliError {
let code = if err.use_stderr() { 1 } else { 0 };
CliError::new(err.into(), code)
}
}
impl From<std::io::Error> for CliError {
fn from(err: std::io::Error) -> CliError {
CliError::new(err.into(), 1)
}
}
pub fn internal<S: fmt::Display>(error: S) -> anyhow::Error {
InternalError::new(anyhow::format_err!("{}", error)).into()
}