refactor: move deprecated code to unused.md

Author: MichaelCurrin

docs/development/unused.md

@@ -0,0 +1,42 @@
+# Unused
+
+Code that is no longer needed because approach changed, but kept in case it is needed again.
+
+
+## Status
+
+These were for when `git status` was used, before `git diff-index` was used.
+
+- `src/generate/action.ts`
+    ```typescript
+    /**
+     * Extract single action from given X and Y actions.
+     *
+     * "Modified" must take preference over the others. Unfortunately, there is no way here to combine
+     * update and move.
+     */
+    function _lookupStatusAction(x: string, y: string): string {
+      if (ACTION[y as ActionKeys] === ACTION.M) {
+        return ACTION.M;
+      }
+
+      return ACTION[x as ActionKeys];
+    }
+    ```
+
+- `src/git/cli.ts`
+    ```typescript
+    /**
+    * Run `git status` with flags and return output.
+    *
+    * This will ignore untracked and remove color.
+    */
+    async function status(options: string[] = []) {
+      return execute(getWorkspaceFolder(), "status", [
+        "--short",
+        "-uno",
+        "--porcelain",
+        ...options,
+      ]);
+    }
+    ```

src/generate/action.ts

@@ -11,23 +11,6 @@ import { ACTION, ROOT } from "../lib/constants";
 import { moveOrRenameFromPaths, splitPath } from "../lib/paths";
 import { ActionKeys } from "./action.d";
 
-/**
- * Extract single action from given X and Y actions.
- *
- * UNUSED.
- *
- * Keep for future use with `git status` short output if needed.
- *
- * "Modified" must take preference over the others. Unfortunately, there is no way here to combine
- * update and move.
- */
-function _lookupStatusAction(x: string, y: string): string {
-  if (ACTION[y as ActionKeys] === ACTION.M) {
-    return ACTION.M;
-  }
-  return ACTION[x as ActionKeys];
-}
-
 /**
  * Lookup the action (e.g. 'modified') for a given key (e.g. 'M').
  */

src/git/cli.ts

@@ -82,19 +82,3 @@ export async function getChanges() {
   }
   return allChanges;
 }
-
-/**
- * Run git status short and return output.
- *
- * Ignore untracked and remove color.
- *
- * UNUSED - This was used before diffIndex was introduced to this project.
- */
-async function status(options: string[] = []) {
-  return execute(getWorkspaceFolder(), "status", [
-    "--short",
-    "-uno",
-    "--porcelain",
-    ...options,
-  ]);
-}