Fixes the path of git: uris -- won't load content otherwise

CHANGELOG.md

@@ -23,6 +23,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 - Fixes an issue where gravatar icons would sometimes not show up — thanks to [PR #579](https://github.com/eamodio/vscode-gitlens/pull/579) by sgtwilko ([@sgtwilko](https://github.com/sgtwilko))
 - Fixes [#501](https://github.com/eamodio/vscode-gitlens/issues/501) — Azure DevOps ssh remotes aren't handled properly
 - Fixes [#572](https://github.com/eamodio/vscode-gitlens/issues/572) — Explorer cant expand some branch folders
+- Fixes an issue where comparing a file with its staged revision doesn't show any content
 
 ## [9.0.3] - 2018-12-06
 

src/git/gitService.ts

@@ -1906,13 +1906,7 @@ export class GitService implements Disposable {
         }
 
         if (Git.isStagedUncommitted(ref)) {
-            const path = GitUri.resolve(fileName, repoPath);
-            return Uri.parse(
-                `git:${path}?${JSON.stringify({
-                    path: path,
-                    ref: '~'
-                })}`
-            );
+            return GitUri.git(fileName, repoPath);
         }
 
         return GitUri.toRevisionUri(ref, fileName, repoPath!);

src/git/gitUri.ts

@@ -323,6 +323,17 @@ export class GitUri extends ((Uri as any) as UriEx) {
         return Strings.normalizePath(relativePath);
     }
 
+    static git(fileName: string, repoPath?: string) {
+        const path = GitUri.resolve(fileName, repoPath);
+        return Uri.parse(
+            `git:${path}?${JSON.stringify({
+                // Ensure we use the fsPath here, otherwise the url won't open properly
+                path: Uri.file(path).fsPath,
+                ref: '~'
+            })}`
+        );
+    }
+
     static resolve(fileName: string, repoPath?: string) {
         const normalizedFileName = Strings.normalizePath(fileName);
         if (repoPath === undefined) return normalizedFileName;