git: implement API

extensions/git/src/git.ts

@@ -682,7 +682,7 @@ export class Repository {
 		return this.git.spawn(args, options);
 	}
 
-	async config(scope: string, key: string, value: any, options: SpawnOptions): Promise<string> {
+	async config(scope: string, key: string, value: any = null, options: SpawnOptions = {}): Promise<string> {
 		const args = ['config'];
 
 		if (scope) {
@@ -699,6 +699,24 @@ export class Repository {
 		return result.stdout;
 	}
 
+	async getConfigs(scope: string): Promise<{ key: string; value: string; }[]> {
+		const args = ['config'];
+
+		if (scope) {
+			args.push('--' + scope);
+		}
+
+		args.push('-l');
+
+		const result = await this.run(args);
+		const lines = result.stdout.trim().split(/\r|\r\n|\n/);
+
+		return lines.map(entry => {
+			const equalsIndex = entry.indexOf('=');
+			return { key: entry.substr(0, equalsIndex), value: entry.substr(equalsIndex + 1) };
+		});
+	}
+
 	async bufferString(object: string, encoding: string = 'utf8', autoGuessEncoding = false): Promise<string> {
 		const stdout = await this.buffer(object);
 
@@ -837,6 +855,36 @@ export class Repository {
 		return result.stdout;
 	}
 
+	async diffWithHEAD(path: string): Promise<string> {
+		const args = ['diff', '--', path];
+		const result = await this.run(args);
+		return result.stdout;
+	}
+
+	async diffWith(ref: string, path: string): Promise<string> {
+		const args = ['diff', ref, '--', path];
+		const result = await this.run(args);
+		return result.stdout;
+	}
+
+	async diffIndexWithHEAD(path: string): Promise<string> {
+		const args = ['diff', '--cached', '--', path];
+		const result = await this.run(args);
+		return result.stdout;
+	}
+
+	async diffIndexWith(ref: string, path: string): Promise<string> {
+		const args = ['diff', '--cached', ref, '--', path];
+		const result = await this.run(args);
+		return result.stdout;
+	}
+
+	async diffBlobs(object1: string, object2: string): Promise<string> {
+		const args = ['diff', object1, object2];
+		const result = await this.run(args);
+		return result.stdout;
+	}
+
 	async diffBetween(ref1: string, ref2: string, path: string): Promise<string> {
 		const args = ['diff', `${ref1}...${ref2}`, '--', path];
 		const result = await this.run(args);
@@ -851,6 +899,13 @@ export class Repository {
 		return result.stdout.trim();
 	}
 
+	async hashObject(data: string): Promise<string> {
+		const args = ['hash-object', '-w', '--stdin'];
+		const result = await this.run(args, { input: data });
+
+		return result.stdout.trim();
+	}
+
 	async add(paths: string[]): Promise<void> {
 		const args = ['add', '-A', '--'];
 
@@ -1098,6 +1153,11 @@ export class Repository {
 		await this.run(args);
 	}
 
+	async removeRemote(name: string): Promise<void> {
+		const args = ['remote', 'rm', name];
+		await this.run(args);
+	}
+
 	async fetch(remote?: string, ref?: string): Promise<void> {
 		const args = ['fetch'];