#12 Revert, cherry-pick & merge git commands available from context m…

…enus

src/dataSource.ts

@@ -201,6 +201,18 @@ export class DataSource {
 		return this.runGitCommand('git branch -m ' + escapeRefName(oldName) + ' ' + escapeRefName(newName));
 	}
 
+	public mergeBranch(branchName: string){
+		return this.runGitCommand('git merge ' + escapeRefName(branchName));
+	}
+
+	public cherrypickCommit(commitHash: string, parentIndex: number) {
+		return this.runGitCommand('git cherry-pick ' + commitHash + (parentIndex > 0 ? ' -m ' + parentIndex : ''));
+	}
+
+	public revertCommit(commitHash: string, parentIndex: number) {
+		return this.runGitCommand('git revert --no-edit ' + commitHash + (parentIndex > 0 ? ' -m ' + parentIndex : ''));
+	}
+
 	public resetToCommit(commitHash: string, resetMode: GitResetMode) {
 		return this.runGitCommand('git reset --' + resetMode + ' ' + commitHash);
 	}

src/gitGraphView.ts

@@ -60,6 +60,12 @@ export class GitGraphView {
 						status: await this.dataSource.checkoutBranch(msg.branchName, msg.remoteBranch)
 					});
 					return;
+				case 'cherrypickCommit':
+					this.sendMessage({
+						command: 'cherrypickCommit',
+						status: await this.dataSource.cherrypickCommit(msg.commitHash, msg.parentIndex)
+					});
+					return;
 				case 'commitDetails':
 					this.sendMessage({
 						command: 'commitDetails',
@@ -99,6 +105,12 @@ export class GitGraphView {
 						... await this.dataSource.getCommits(msg.branchName, msg.maxCommits, msg.showRemoteBranches, msg.currentBranch)
 					});
 					return;
+				case 'mergeBranch':
+					this.sendMessage({
+						command: 'mergeBranch',
+						status: await this.dataSource.mergeBranch(msg.branchName)
+					});
+					return;
 				case 'renameBranch':
 					this.sendMessage({
 						command: 'renameBranch',
@@ -111,6 +123,12 @@ export class GitGraphView {
 						status: await this.dataSource.resetToCommit(msg.commitHash, msg.resetMode)
 					});
 					return;
+				case 'revertCommit':
+					this.sendMessage({
+						command: 'revertCommit',
+						status: await this.dataSource.revertCommit(msg.commitHash, msg.parentIndex)
+					});
+					return;
 				case 'viewDiff':
 					this.viewDiff(msg.commitHash, msg.oldFilePath, msg.newFilePath, msg.type);
 					return;

src/types.ts

@@ -89,6 +89,16 @@ export interface ResponseCheckoutBranch {
 	status: GitCommandStatus;
 }
 
+export interface RequestCherrypickCommit {
+	command: 'cherrypickCommit';
+	commitHash: string;
+	parentIndex: number;
+}
+export interface ResponseCherrypickCommit {
+	command: 'cherrypickCommit';
+	status: GitCommandStatus;
+}
+
 export interface RequestCommitDetails {
 	command: 'commitDetails';
 	commitHash: string;
@@ -158,6 +168,15 @@ export interface ResponseLoadCommits {
 	moreCommitsAvailable: boolean;
 }
 
+export interface RequestMergeBranch {
+	command: 'mergeBranch';
+	branchName: string;
+}
+export interface ResponseMergeBranch {
+	command: 'mergeBranch';
+	status: GitCommandStatus;
+}
+
 export interface RequestRenameBranch {
 	command: 'renameBranch';
 	oldName: string;
@@ -178,6 +197,16 @@ export interface ResponseResetToCommit {
 	status: GitCommandStatus;
 }
 
+export interface RequestRevertCommit {
+	command: 'revertCommit';
+	commitHash: string;
+	parentIndex: number;
+}
+export interface ResponseRevertCommit {
+	command: 'revertCommit';
+	status: GitCommandStatus;
+}
+
 export interface RequestViewDiff {
 	command: 'viewDiff';
 	commitHash: string;
@@ -193,27 +222,33 @@ export interface ResponseViewDiff {
 export type RequestMessage = 
 	  RequestAddTag
 	| RequestCheckoutBranch
+	| RequestCherrypickCommit
 	| RequestCommitDetails
 	| RequestCopyCommitHashToClipboard
 	| RequestCreateBranch
 	| RequestDeleteBranch
 	| RequestDeleteTag
 	| RequestLoadBranches
 	| RequestLoadCommits
+	| RequestMergeBranch
 	| RequestRenameBranch
 	| RequestResetToCommit
+	| RequestRevertCommit
 	| RequestViewDiff;
 
 export type ResponseMessage = 
 	  ResponseAddTag
 	| ResponseCheckoutBranch
+	| ResponseCherrypickCommit
 	| ResponseCommitDetails
 	| ResponseCopyCommitHashToClipboard
 	| ResponseCreateBranch
 	| ResponseDeleteBranch
 	| ResponseDeleteTag
 	| ResponseLoadBranches
 	| ResponseLoadCommits
+	| ResponseMergeBranch
 	| ResponseRenameBranch
 	| ResponseResetToCommit
+	| ResponseRevertCommit
 	| ResponseViewDiff;

web/main.ts

@@ -514,6 +514,42 @@
 							}, sourceElem);
 						}
 					},
+					{
+						title: 'Cherry Pick this Commit',
+						onClick: () => {
+							if (this.commits[this.commitLookup[hash]].parentHashes.length === 1) {
+								showConfirmationDialog('Are you sure you want to cherry pick commit <b><i>' + abbrevCommit(hash) + '</i></b>?', () => {
+									sendMessage({ command: 'cherrypickCommit', commitHash: hash, parentIndex: 0 });
+								}, sourceElem);
+							} else {
+								let options = this.commits[this.commitLookup[hash]].parentHashes.map((hash, index) => ({
+									name: abbrevCommit(hash) + (typeof this.commitLookup[hash] === 'number' ? ': ' + this.commits[this.commitLookup[hash]].message : ''),
+									value: (index + 1).toString()
+								}));
+								showSelectDialog('Are you sure you want to cherry pick merge commit <b><i>' + abbrevCommit(hash) + '</i></b>? Choose the parent hash on the main branch, to cherry pick the commit relative to:', '1', options, 'Yes, cherry pick commit', (parentIndex) => {
+									sendMessage({ command: 'cherrypickCommit', commitHash: hash, parentIndex: parseInt(parentIndex) });
+								}, sourceElem);
+							}
+						}
+					},
+					{
+						title: 'Reverse this Commit',
+						onClick: () => {
+							if (this.commits[this.commitLookup[hash]].parentHashes.length === 1) {
+								showConfirmationDialog('Are you sure you want to reverse commit <b><i>' + abbrevCommit(hash) + '</i></b>?', () => {
+									sendMessage({ command: 'revertCommit', commitHash: hash, parentIndex: 0 });
+								}, sourceElem);
+							} else {
+								let options = this.commits[this.commitLookup[hash]].parentHashes.map((hash, index) => ({
+									name: abbrevCommit(hash) + (typeof this.commitLookup[hash] === 'number' ? ': ' + this.commits[this.commitLookup[hash]].message : ''),
+									value: (index + 1).toString()
+								}));
+								showSelectDialog('Are you sure you want to reverse merge commit <b><i>' + abbrevCommit(hash) + '</i></b>? Choose the parent hash on the main branch, to reverse the commit relative to:', '1', options, 'Yes, reverse commit', (parentIndex) => {
+									sendMessage({ command: 'revertCommit', commitHash: hash, parentIndex: parseInt(parentIndex) });
+								}, sourceElem);
+							}
+						}
+					},
 					{
 						title: 'Reset current branch to this Commit',
 						onClick: () => {
@@ -570,22 +606,33 @@
 						}
 					}];
 					if (sourceElem.className === 'gitRef head') {
-						menu.push({
-							title: 'Rename Branch',
-							onClick: () => {
-								showInputDialog('Enter the new name for branch <b><i>' + escapeHtml(refName) + '</i></b>:', refName, 'Rename Branch', (newName) => {
-									sendMessage({ command: 'renameBranch', oldName: refName, newName: newName });
-								}, null);
-							}
-						});
-						menu.push({
-							title: 'Delete Branch',
-							onClick: () => {
-								showCheckboxDialog('Are you sure you want to delete the branch <b><i>' + escapeHtml(refName) + '</i></b>?', 'Force Delete', 'Delete Branch', (forceDelete) => {
-									sendMessage({ command: 'deleteBranch', branchName: refName, forceDelete: forceDelete });
-								}, null);
+						menu.push(
+							{
+								title: 'Rename Branch',
+								onClick: () => {
+									showInputDialog('Enter the new name for branch <b><i>' + escapeHtml(refName) + '</i></b>:', refName, 'Rename Branch', (newName) => {
+										sendMessage({ command: 'renameBranch', oldName: refName, newName: newName });
+									}, null);
+								}
+							}, {
+								title: 'Delete Branch',
+								onClick: () => {
+									showCheckboxDialog('Are you sure you want to delete the branch <b><i>' + escapeHtml(refName) + '</i></b>?', 'Force Delete', 'Delete Branch', (forceDelete) => {
+										sendMessage({ command: 'deleteBranch', branchName: refName, forceDelete: forceDelete });
+									}, null);
+								}
 							}
-						});
+						);
+						if (this.branchOptions.length > 0 && this.branchOptions[0] !== refName) {
+							menu.push({
+								title: 'Merge into current branch',
+								onClick: () => {
+									showConfirmationDialog('Are you sure you want to merge branch <b><i>' + escapeHtml(refName) + '</i></b> into the current branch?', () => {
+										sendMessage({ command: 'mergeBranch', branchName: refName });
+									}, null);
+								}
+							});
+						}
 					}
 				}
 				showContextMenu(<MouseEvent>e, menu, sourceElem);
@@ -698,6 +745,9 @@
 			case 'checkoutBranch':
 				refreshGraphOrDisplayError(msg.status, 'Unable to Checkout Branch');
 				break;
+			case 'cherrypickCommit':
+				refreshGraphOrDisplayError(msg.status, 'Unable to Cherry Pick Commit');
+				break;
 			case 'commitDetails':
 				if (msg.commitDetails === null) {
 					gitGraph.hideCommitDetails();
@@ -724,12 +774,18 @@
 			case 'loadCommits':
 				gitGraph.loadCommits(msg.commits, msg.moreCommitsAvailable);
 				break;
+			case 'mergeBranch':
+				refreshGraphOrDisplayError(msg.status, 'Unable to Merge Branch');
+				break;
 			case 'renameBranch':
 				refreshGraphOrDisplayError(msg.status, 'Unable to Rename Branch');
 				break;
 			case 'resetToCommit':
 				refreshGraphOrDisplayError(msg.status, 'Unable to Reset to Commit');
 				break;
+			case 'revertCommit':
+				refreshGraphOrDisplayError(msg.status, 'Unable to Reverse Commit');
+				break;
 			case 'viewDiff':
 				if (msg.success === false) showErrorDialog('Unable to view diff of file', null, null);
 				break;