Refactors Git provider into sub-providers

 - Patch operations
 - Staging operations
 - Stash operations
 - Status operations
 - Worktree operations
Adds GitCache to centralize the caching for the git providers

Author: eamodio

src/@types/global.d.ts

@@ -40,4 +40,28 @@ export declare global {
 		: never;
 
 	export type UnwrapCustomEvent<T> = T extends CustomEvent<infer U> ? U : never;
+
+	export type RemoveFirstArg<F> = F extends {
+		(first: any, ...args: infer A1): infer R1;
+		(first: any, ...args: infer A2): infer R2;
+		(first: any, ...args: infer A3): infer R3;
+		(first: any, ...args: infer A4): infer R4;
+	}
+		? ((...args: A1) => R1) & ((...args: A2) => R2) & ((...args: A3) => R3) & ((...args: A4) => R4)
+		: F extends {
+					(first: any, ...args: infer A1): infer R1;
+					(first: any, ...args: infer A2): infer R2;
+					(first: any, ...args: infer A3): infer R3;
+		    }
+		  ? ((...args: A1) => R1) & ((...args: A2) => R2) & ((...args: A3) => R3)
+		  : F extends {
+						(first: any, ...args: infer A1): infer R1;
+						(first: any, ...args: infer A2): infer R2;
+		      }
+		    ? ((...args: A1) => R1) & ((...args: A2) => R2)
+		    : F extends {
+							(first: any, ...args: infer A1): infer R1;
+		        }
+		      ? (...args: A1) => R1
+		      : never;
 }

src/annotations/gutterChangesAnnotationProvider.ts

@@ -131,10 +131,9 @@ export class GutterChangesAnnotationProvider extends AnnotationProviderBase<Chan
 					localChanges = false;
 				}
 			} else {
-				const status = await this.container.git.getStatusForFile(
-					this.trackedDocument.uri.repoPath!,
-					this.trackedDocument.uri,
-				);
+				const status = await this.container.git
+					.status(this.trackedDocument.uri.repoPath!)
+					.getStatusForFile?.(this.trackedDocument.uri);
 				const commits = status?.getPseudoCommits(
 					this.container,
 					await this.container.git.getCurrentUser(this.trackedDocument.uri.repoPath!),

src/commands/closeUnchangedFiles.ts

@@ -27,7 +27,7 @@ export class CloseUnchangedFilesCommand extends GlCommandBase {
 				const repository = await getRepositoryOrShowPicker('Close All Unchanged Files');
 				if (repository == null) return;
 
-				const status = await this.container.git.getStatus(repository.uri);
+				const status = await this.container.git.status(repository.uri).getStatus();
 				if (status == null) {
 					void window.showWarningMessage('Unable to close unchanged files');
 

src/commands/diffLineWithWorking.ts

@@ -63,7 +63,7 @@ export class DiffLineWithWorkingCommand extends ActiveEditorCommand {
 
 				// If the line is uncommitted, use previous commit (or index if the file is staged)
 				if (args.commit.isUncommitted) {
-					const status = await this.container.git.getStatusForFile(gitUri.repoPath!, gitUri);
+					const status = await this.container.git.status(gitUri.repoPath!).getStatusForFile?.(gitUri);
 					if (status?.indexStatus != null) {
 						lhsSha = uncommittedStaged;
 						lhsUri = this.container.git.getAbsoluteUri(

src/commands/diffWithRevision.ts

@@ -61,7 +61,7 @@ export class DiffWithRevisionCommand extends ActiveEditorCommand {
 							getState: async () => {
 								const items: (CommandQuickPickItem | DirectiveQuickPickItem)[] = [];
 
-								const status = await this.container.git.getStatus(gitUri.repoPath);
+								const status = await this.container.git.status(gitUri.repoPath!).getStatus();
 								if (status != null) {
 									for (const f of status.files) {
 										if (f.workingTreeStatus === '?' || f.workingTreeStatus === '!') {

src/commands/diffWithRevisionFrom.ts

@@ -49,7 +49,7 @@ export class DiffWithRevisionFromCommand extends ActiveEditorCommand {
 		if (args?.stash) {
 			const title = `Open Changes with Stash${pad(GlyphChars.Dot, 2, 2)}`;
 			const pick = await showStashPicker(
-				this.container.git.getStash(gitUri.repoPath),
+				this.container.git.stash(gitUri.repoPath)?.getStash(),
 				`${title}${gitUri.getFormattedFileName({ truncateTo: quickPickTitleMaxChars - title.length })}`,
 				'Choose a stash to compare with',
 				{

src/commands/diffWithWorking.ts

@@ -76,7 +76,7 @@ export class DiffWithWorkingCommand extends ActiveEditorCommand {
 
 		// If we are a fake "staged" sha, check the status
 		if (gitUri.isUncommittedStaged) {
-			const status = await this.container.git.getStatusForFile(gitUri.repoPath!, gitUri);
+			const status = await this.container.git.status(gitUri.repoPath!).getStatusForFile?.(gitUri);
 			if (status?.indexStatus != null) {
 				void (await executeCommand<DiffWithCommandArgs>(GlCommand.DiffWith, {
 					repoPath: gitUri.repoPath,

src/commands/externalDiff.ts

@@ -88,7 +88,7 @@ export class ExternalDiffCommand extends GlCommandBase {
 				const repository = await getRepositoryOrShowPicker('Open All Changes (difftool)');
 				if (repository == null) return undefined;
 
-				const status = await this.container.git.getStatus(repository.uri);
+				const status = await this.container.git.status(repository.uri).getStatus();
 				if (status == null) {
 					return window.showInformationMessage("The repository doesn't have any changes");
 				}
@@ -130,7 +130,7 @@ export class ExternalDiffCommand extends GlCommandBase {
 				if (!repoPath) return;
 
 				const uri = editor.document.uri;
-				const status = await this.container.git.getStatusForFile(repoPath, uri);
+				const status = await this.container.git.status(repoPath).getStatusForFile?.(uri);
 				if (status == null) {
 					void window.showInformationMessage("The current file doesn't have any changes");
 

src/commands/git/pull.ts

@@ -193,7 +193,7 @@ export class PullGitCommand extends QuickCommand<State> {
 			}
 		} else {
 			const [repo] = state.repos;
-			const [status, lastFetched] = await Promise.all([repo.git.getStatus(), repo.getLastFetched()]);
+			const [status, lastFetched] = await Promise.all([repo.git.status().getStatus(), repo.getLastFetched()]);
 
 			let lastFetchedOn = '';
 			if (lastFetched !== 0) {

src/commands/git/push.ts

@@ -294,7 +294,7 @@ export class PushGitCommand extends QuickCommand<State> {
 					}
 				}
 			} else {
-				const status = await repo.git.getStatus();
+				const status = await repo.git.status().getStatus();
 
 				const branch: GitBranchReference = {
 					refType: 'branch',