wip

.github/PULL_REQUEST_TEMPLATE/enhancement.md

@@ -0,0 +1,20 @@
+# Objective
+
+- Describe the objective or issue this PR addresses.
+- If you're fixing a specific issue, say "Fixes #X".
+
+## Solution
+
+- Describe the solution used to achieve the objective above.
+
+---
+
+## Changelog
+
+> This section is optional. If this was a trivial fix, or has no externally-visible impact, you can delete this section.
+
+- What changed as a result of this PR?
+- If applicable, organize changes under "Added", "Changed", or "Fixed" sub-headings
+- Stick to one or two sentences. If more detail is needed for a particular change, consider adding it to the "Solution" section
+  - If you can't summarize the work, your change may be unreasonably large / unrelated. Consider splitting your PR to make it easier to review and merge!
+

helix-view/Cargo.toml

@@ -25,6 +25,7 @@ helix-vcs = { version = "0.6", path = "../helix-vcs" }
 
 winapi = "0.3"
 sha1_smol = "1.0"
+either = "1.8"
 
 # Conversion traits
 once_cell = "1.17"

helix-view/src/session/mod.rs

@@ -1,4 +1,5 @@
 pub mod state;
+pub mod undo;
 
 use std::{
     fs::{File, OpenOptions},

helix-view/src/session/state.rs

@@ -3,10 +3,6 @@ use std::path::PathBuf;
 use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
-pub struct BufferList(pub Vec<PathBuf>);
-
-#[derive(Debug)]
 pub struct State {
-    buffers
+    buffers: Vec<PathBuf>,
 }
-

helix-view/src/session/undo.rs

@@ -0,0 +1,28 @@
+use std::io::Result;
+use std::path::PathBuf;
+
+use either::Either;
+use helix_core::history::History;
+
+pub struct UndoFile<'a> {
+    path: PathBuf,
+    history: Either<History, &'a History>,
+}
+
+impl<'a> UndoFile<'a> {
+    fn serialize(&self) -> Result<()> {
+        todo!()
+    }
+
+    fn deserialize() -> Result<Self> {
+        todo!()
+    }
+
+    fn serialize_transaction(&self) -> Result<()> {
+        todo!()
+    }
+
+    fn deserialize_transaction(&self) -> Result<()> {
+        todo!()
+    }
+}