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

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

--- a/rust/hg-core/src/errors.rs	Mon Feb 01 13:32:00 2021 +0100
+++ b/rust/hg-core/src/errors.rs	Thu Feb 04 13:16:21 2021 +0100
@@ -26,11 +26,13 @@
 /// Details about where an I/O error happened
 #[derive(Debug, derive_more::From)]
 pub enum IoErrorContext {
-    /// A filesystem operation returned `std::io::Error`
+    /// A filesystem operation for the given file
     #[from]
     File(std::path::PathBuf),
-    /// `std::env::current_dir` returned `std::io::Error`
+    /// `std::env::current_dir`
     CurrentDir,
+    /// `std::env::current_exe`
+    CurrentExe,
 }
 
 impl HgError {
@@ -69,6 +71,7 @@
         match self {
             IoErrorContext::File(path) => path.display().fmt(f),
             IoErrorContext::CurrentDir => f.write_str("current directory"),
+            IoErrorContext::CurrentExe => f.write_str("current executable"),
         }
     }
 }