Minor improvements in the code.

lib/commands/diff.js

@@ -46,12 +46,10 @@ module.exports = {
 		return execCommand.execute( getExecData( diffCommand ) )
 			.then( execResponse => {
 				if ( !execResponse.logs.info.length ) {
-					return Promise.resolve( {} );
+					return {};
 				}
 
-				return Promise.resolve( {
-					logs: execResponse.logs
-				} );
+				return execResponse;
 			} );
 
 		function getExecData( command ) {

lib/commands/fetch.js

@@ -66,9 +66,7 @@ module.exports = {
 
 				log.info( 'Repository is up-to-date.' );
 
-				return Promise.resolve( {
-					logs: log.all()
-				} );
+				return { logs: log.all() };
 			} );
 
 		function getExecData( command ) {

lib/commands/save.js

@@ -64,26 +64,27 @@ module.exports = {
 				.then( execResponse => execResponse.logs.info[ 0 ].slice( 0, 7 ) );
 		}
 
-		return promise.then( dataToSave => {
-			const commandResponse = {
-				packageName: data.packageName,
-				data: dataToSave,
-				branch: options.branch,
-				hash: options.hash
-			};
-
-			/* istanbul ignore else */
-			if ( options.branch ) {
-				log.info( `Branch: "${ dataToSave }".` );
-			} else if ( options.hash ) {
-				log.info( `Commit: "${ dataToSave }".` );
-			}
+		return promise
+			.then( dataToSave => {
+				const commandResponse = {
+					packageName: data.packageName,
+					data: dataToSave,
+					branch: options.branch,
+					hash: options.hash
+				};
+
+				/* istanbul ignore else */
+				if ( options.branch ) {
+					log.info( `Branch: "${ dataToSave }".` );
+				} else if ( options.hash ) {
+					log.info( `Commit: "${ dataToSave }".` );
+				}
 
-			return Promise.resolve( {
-				response: commandResponse,
-				logs: log.all()
+				return {
+					response: commandResponse,
+					logs: log.all()
+				};
 			} );
-		} );
 
 		function getExecData( command ) {
 			return Object.assign( {}, data, {

lib/commands/status.js

@@ -60,9 +60,7 @@ module.exports = {
 					mgitBranch: data.repository.branch
 				};
 
-				return Promise.resolve( {
-					response: commandResponse
-				} );
+				return { response: commandResponse };
 			} );
 
 		function getExecData( command ) {

lib/commands/sync.js

@@ -90,14 +90,14 @@ module.exports = {
 				if ( isOnBranchRegexp.test( stdout ) ) {
 					log.info( `Package "${ data.packageName }" is on a detached commit.` );
 
-					return Promise.resolve( { logs: log.all() } );
+					return { logs: log.all() };
 				}
 
 				return execCommand.execute( getExecData( `git pull origin ${ data.repository.branch }` ) )
 					.then( response => {
 						log.concat( response.logs );
 
-						return Promise.resolve( { logs: log.all() } );
+						return { logs: log.all() };
 					} );
 			} )
 			.catch( commandResponseOrError => {
@@ -127,6 +127,10 @@ module.exports = {
 	/**
 	 * @private
 	 * @param {Object} packageDetails
+	 * @param {String} packageDetails.name A name of the package.
+	 * @param {String} packageDetails.url A url that will be cloned.
+	 * @param {String} packageDetails.path An absolute path where the package should be cloned.
+	 * @param {String} packageDetails.branch A branch on which the repository will be checked out after cloning.
 	 * @param {Object} options Command options.
 	 * @returns {Promise}
 	 */