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comparison rust/hg-core/src/errors.rs @ 47780:cf5f8da2244c stable

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rhg: Propagate permission errors when finding a repository The Rust standard library has a `Path::is_dir` method that returns false for any I/O error (such as a permission error), not just "No such file or directory". Instead add an `is_dir` function that returns false for non-directories and for "No such file or directory" errors, but propagates other I/O errors. Differential Revision: https://phab.mercurial-scm.org/D11230
author Simon Sapin <simon.sapin@octobus.net>
date Thu, 29 Jul 2021 12:22:25 +0200
parents 6e49769b7f97
children abeae090ce67
comparison
equal deleted inserted replaced
47779:6df528ed47a9 47780:cf5f8da2244c
45 } 45 }
46 46
47 /// Details about where an I/O error happened 47 /// Details about where an I/O error happened
48 #[derive(Debug)] 48 #[derive(Debug)]
49 pub enum IoErrorContext { 49 pub enum IoErrorContext {
50 /// `std::fs::metadata`
51 ReadingMetadata(std::path::PathBuf),
50 ReadingFile(std::path::PathBuf), 52 ReadingFile(std::path::PathBuf),
51 WritingFile(std::path::PathBuf), 53 WritingFile(std::path::PathBuf),
52 RemovingFile(std::path::PathBuf), 54 RemovingFile(std::path::PathBuf),
53 RenamingFile { 55 RenamingFile {
54 from: std::path::PathBuf, 56 from: std::path::PathBuf,
106 108
107 // TODO: use `DisplayBytes` instead to show non-Unicode filenames losslessly? 109 // TODO: use `DisplayBytes` instead to show non-Unicode filenames losslessly?
108 impl fmt::Display for IoErrorContext { 110 impl fmt::Display for IoErrorContext {
109 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { 111 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
110 match self { 112 match self {
113 IoErrorContext::ReadingMetadata(path) => {
114 write!(f, "when reading metadata of {}", path.display())
115 }
111 IoErrorContext::ReadingFile(path) => { 116 IoErrorContext::ReadingFile(path) => {
112 write!(f, "when reading {}", path.display()) 117 write!(f, "when reading {}", path.display())
113 } 118 }
114 IoErrorContext::WritingFile(path) => { 119 IoErrorContext::WritingFile(path) => {
115 write!(f, "when writing {}", path.display()) 120 write!(f, "when writing {}", path.display())