Git - add similarity threshold setting (microsoft#182492)

Author: lszomoru

extensions/git/package.json

@@ -2706,6 +2706,14 @@
           "default": "prompt",
           "markdownDescription": "%config.openRepositoryInParentFolders%",
           "scope": "resource"
+        },
+        "git.similarityThreshold": {
+          "type": "number",
+          "default": 50,
+          "minimum": 0,
+          "maximum": 100,
+          "description": "%config.similarityThreshold%",
+          "scope": "resource"
         }
       }
     },

extensions/git/package.nls.json

@@ -252,6 +252,7 @@
 	"config.publishBeforeContinueOn.always": "Always publish unpublished git state when using Continue Working On from a git repository",
 	"config.publishBeforeContinueOn.never": "Never publish unpublished git state when using Continue Working On from a git repository",
 	"config.publishBeforeContinueOn.prompt": "Prompt to publish unpublished git state when using Continue Working On from a git repository",
+	"config.similarityThreshold": "Controls the threshold of the similarity index (i.e. amount of additions/deletions compared to the file's size) for changes in a pair of added/deleted files to be considered a rename.",
 	"submenu.explorer": "Git",
 	"submenu.commit": "Commit",
 	"submenu.commit.amend": "Amend",

extensions/git/src/git.ts

@@ -2000,7 +2000,7 @@ export class Repository {
 		}
 	}
 
-	async getStatus(opts?: { limit?: number; ignoreSubmodules?: boolean; untrackedChanges?: 'mixed' | 'separate' | 'hidden'; cancellationToken?: CancellationToken }): Promise<{ status: IFileStatus[]; statusLength: number; didHitLimit: boolean }> {
+	async getStatus(opts?: { limit?: number; ignoreSubmodules?: boolean; similarityThreshold?: number; untrackedChanges?: 'mixed' | 'separate' | 'hidden'; cancellationToken?: CancellationToken }): Promise<{ status: IFileStatus[]; statusLength: number; didHitLimit: boolean }> {
 		if (opts?.cancellationToken && opts?.cancellationToken.isCancellationRequested) {
 			throw new CancellationError();
 		}
@@ -2020,6 +2020,10 @@ export class Repository {
 			args.push('--ignore-submodules');
 		}
 
+		if (opts?.similarityThreshold) {
+			args.push(`--find-renames=${opts.similarityThreshold}%`);
+		}
+
 		const child = this.stream(args, { env });
 
 		let result = new Promise<{ status: IFileStatus[]; statusLength: number; didHitLimit: boolean }>((c, e) => {

extensions/git/src/repository.ts

@@ -2056,9 +2056,10 @@ export class Repository implements Disposable {
 		const ignoreSubmodules = scopedConfig.get<boolean>('ignoreSubmodules');
 
 		const limit = scopedConfig.get<number>('statusLimit', 10000);
+		const similarityThreshold = scopedConfig.get<number>('similarityThreshold', 50);
 
 		const start = new Date().getTime();
-		const { status, statusLength, didHitLimit } = await this.repository.getStatus({ limit, ignoreSubmodules, untrackedChanges, cancellationToken });
+		const { status, statusLength, didHitLimit } = await this.repository.getStatus({ limit, ignoreSubmodules, similarityThreshold, untrackedChanges, cancellationToken });
 		const totalTime = new Date().getTime() - start;
 
 		this.isRepositoryHuge = didHitLimit ? { limit } : false;