From 198fe409513d43bc2c38fbb148131bf8cab58d19 Mon Sep 17 00:00:00 2001 From: Nathan Vegdahl Date: Tue, 20 Jul 2021 18:40:41 -0700 Subject: [PATCH] Don't insert a final line ending on file load/reload. --- helix-view/src/document.rs | 27 ++++++--------------------- 1 file changed, 6 insertions(+), 21 deletions(-) diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs index a04af94d..2f2b7479 100644 --- a/helix-view/src/document.rs +++ b/helix-view/src/document.rs @@ -306,19 +306,6 @@ pub async fn to_writer<'a, W: tokio::io::AsyncWriteExt + Unpin + ?Sized>( Ok(()) } -/// Inserts the final line ending into `rope` if it's missing. [Why?](https://stackoverflow.com/questions/729692/why-should-text-files-end-with-a-newline) -pub fn with_line_ending(rope: &mut Rope) -> LineEnding { - // search for line endings - let line_ending = auto_detect_line_ending(rope).unwrap_or(DEFAULT_LINE_ENDING); - - // add missing newline at the end of file - if rope.len_bytes() == 0 || !char_is_line_ending(rope.char(rope.len_chars() - 1)) { - rope.insert(rope.len_chars(), line_ending.as_str()); - } - - line_ending -} - /// Like std::mem::replace() except it allows the replacement value to be mapped from the /// original value. fn take_with(mut_ref: &mut T, closure: F) @@ -456,7 +443,7 @@ impl Document { theme: Option<&Theme>, config_loader: Option<&syntax::Loader>, ) -> Result { - let (mut rope, encoding) = if path.exists() { + let (rope, encoding) = if path.exists() { let mut file = std::fs::File::open(&path).context(format!("unable to open {:?}", path))?; from_reader(&mut file, encoding)? @@ -465,7 +452,6 @@ impl Document { (Rope::from(DEFAULT_LINE_ENDING.as_str()), encoding) }; - let line_ending = with_line_ending(&mut rope); let mut doc = Self::from(rope, Some(encoding)); // set the path and try detecting the language @@ -474,9 +460,9 @@ impl Document { doc.detect_language(theme, loader); } - // Detect indentation style and set line ending. + // Detect indentation style and line ending. doc.detect_indent_style(); - doc.line_ending = line_ending; + doc.line_ending = auto_detect_line_ending(&doc.text).unwrap_or(DEFAULT_LINE_ENDING); Ok(doc) } @@ -605,16 +591,15 @@ impl Document { } let mut file = std::fs::File::open(path.unwrap())?; - let (mut rope, ..) = from_reader(&mut file, Some(encoding))?; - let line_ending = with_line_ending(&mut rope); + let (rope, ..) = from_reader(&mut file, Some(encoding))?; let transaction = helix_core::diff::compare_ropes(self.text(), &rope); self.apply(&transaction, view_id); self.append_changes_to_history(view_id); - // Detect indentation style and set line ending. + // Detect indentation style and line ending. self.detect_indent_style(); - self.line_ending = line_ending; + self.line_ending = auto_detect_line_ending(&self.text).unwrap_or(DEFAULT_LINE_ENDING); Ok(()) }