Fix renamed and modified files not handled.

Author: mathieutu

src/git.test.ts

@@ -56,7 +56,7 @@ describe("getDiffForFile", () => {
     const diffFromFile = getDiffForFile("./mockfile.js", true);
 
     const expectedArguments =
-      'git diff --diff-algorithm=histogram --diff-filter=ACM --relative --staged --unified=0 "1234567"';
+      'git diff --diff-algorithm=histogram --diff-filter=ACM -M100% --relative --staged --unified=0 "1234567"';
     expect(
       mockedChildProcess.execSync.mock.calls[
         mockedChildProcess.execSync.mock.calls.length - 1

src/git.ts

@@ -25,6 +25,7 @@ const getDiffForFile = (filePath: string, staged = false): string => {
       "diff",
       "--diff-algorithm=histogram",
       "--diff-filter=ACM",
+      "-M100%",
       "--relative",
       staged && "--staged",
       "--unified=0",
@@ -51,6 +52,7 @@ const getDiffFileList = (): string[] => {
       "diff",
       "--diff-algorithm=histogram",
       "--diff-filter=ACM",
+      "-M100%",
       "--name-only",
       "--relative",
       "--staged",