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comparison rust/hg-core/src/errors.rs @ 46483:2845892dd489

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rust: Parse system and user configuration CLI `--config` argument parsing is still missing, as is per-repo config Differential Revision: https://phab.mercurial-scm.org/D9961
author Simon Sapin <simon.sapin@octobus.net>
date Thu, 04 Feb 2021 13:16:21 +0100
parents d03b0601e0eb
children f031fe1c6ede
comparison
equal deleted inserted replaced
46482:39128182f04e 46483:2845892dd489
24 } 24 }
25 25
26 /// Details about where an I/O error happened 26 /// Details about where an I/O error happened
27 #[derive(Debug, derive_more::From)] 27 #[derive(Debug, derive_more::From)]
28 pub enum IoErrorContext { 28 pub enum IoErrorContext {
29 /// A filesystem operation returned `std::io::Error` 29 /// A filesystem operation for the given file
30 #[from] 30 #[from]
31 File(std::path::PathBuf), 31 File(std::path::PathBuf),
32 /// `std::env::current_dir` returned `std::io::Error` 32 /// `std::env::current_dir`
33 CurrentDir, 33 CurrentDir,
34 /// `std::env::current_exe`
35 CurrentExe,
34 } 36 }
35 37
36 impl HgError { 38 impl HgError {
37 pub fn corrupted(explanation: impl Into<String>) -> Self { 39 pub fn corrupted(explanation: impl Into<String>) -> Self {
38 // TODO: capture a backtrace here and keep it in the error value 40 // TODO: capture a backtrace here and keep it in the error value
67 impl fmt::Display for IoErrorContext { 69 impl fmt::Display for IoErrorContext {
68 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { 70 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
69 match self { 71 match self {
70 IoErrorContext::File(path) => path.display().fmt(f), 72 IoErrorContext::File(path) => path.display().fmt(f),
71 IoErrorContext::CurrentDir => f.write_str("current directory"), 73 IoErrorContext::CurrentDir => f.write_str("current directory"),
74 IoErrorContext::CurrentExe => f.write_str("current executable"),
72 } 75 }
73 } 76 }
74 } 77 }
75 78
76 pub trait IoResultExt<T> { 79 pub trait IoResultExt<T> {