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diff rust/rhg/src/ui.rs @ 45440:a6a000ab135b

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rhg: print error message when argument parsing fails Differential Revision: https://phab.mercurial-scm.org/D8956
author Antoine Cezar <antoine.cezar@octobus.net>
date Mon, 17 Aug 2020 16:55:43 +0200
parents fbc373b7cbc3
children 66756b34c06e
line wrap: on
line diff
--- a/rust/rhg/src/ui.rs	Thu Aug 13 16:36:42 2020 +0200
+++ b/rust/rhg/src/ui.rs	Mon Aug 17 16:55:43 2020 +0200
@@ -47,6 +47,11 @@
 
         stderr.flush().or_else(handle_stderr_error)
     }
+
+    /// Write string line to stderr
+    pub fn writeln_stderr_str(&self, s: &str) -> Result<(), UiError> {
+        self.write_stderr(&format!("{}\n", s).as_bytes())
+    }
 }
 
 /// A buffered stdout writer for faster batch printing operations.