Changes description to be more generic

Adds diff menu commands always
Attempts to move the diff file to the correct line number
Fixes code action provider -- works again
Deletes deprecated code

.vscode/settings.json

@@ -2,11 +2,13 @@
 {
     "files.exclude": {
         "out": false, // set this to true to hide the "out" folder with the compiled JS files
-        "node_modules": false
+        "node_modules": true,
+        "typings": true
     },
     "search.exclude": {
         "out": true, // set this to false to include "out" folder in search results
-        "node_modules": true
+        "node_modules": true,
+        "typings": true
     },
     "typescript.tsdk": "./node_modules/typescript/lib" // we want to use the TS server from our node_modules folder to control its version
 }

README.md

@@ -1,16 +1,16 @@
-# Git CodeLens
+# GitLens
 
-Provides Git blame (and history eventually) CodeLens for many supported Visual Studio Code languages (in theory -- the language must support symbol searching).
+Provides Git blame and blame history CodeLens for many supported Visual Studio Code languages (in theory -- the language must support symbol searching).
 
 ## Features
 
-Provides CodeLens with the author and date of the last check-in.
+Provides two CodeLens on code blocks :
+- **Recent Change** - author and date of the most recent check-in
+  > Clicking on the CodeLens opens a **Blame explorer** with the commits and changed lines in the right pane and the commit (file) contents on the left
+- **Blame** - number of authors of a block and the most prominent author (if there are more than one)
+  > Clicking on the CodeLens toggles Git blame overlay
 
-> ![CodeLens](https://raw.githubusercontent.com/eamodio/vscode-git-codelens/master/images/preview-codelens.png)
+> ![GitLens preview](https://raw.githubusercontent.com/eamodio/vscode-git-codelens/master/images/preview-gitlens.gif)
-
-Clicking on a CodeLens opens a blame "explorer" with the commits and changed lines in the right pane and the commit (file) contents on the left.
-
-> ![Blame Explorer](https://raw.githubusercontent.com/eamodio/vscode-git-codelens/master/images/preview-blame.png)
 
 ## Requirements
 
@@ -22,10 +22,17 @@ None yet.
 
 ## Known Issues
 
-Too many to count -- this is still very much a work in progress.
+- Content in the **Blame explorer** disappears after a bit: [Open vscode issue](https://github.com/Microsoft/vscode/issues/11360)
+- Highlighted lines disappear in **Blame explorer** after changing selection and returning to a previous selection: [Open vscode issue](https://github.com/Microsoft/vscode/issues/11360)
+- CodeLens aren't updated properly after a file is saved: [Open vscode issue](https://github.com/Microsoft/vscode/issues/11546)
+- Visible whitespace causes issue with blame overlay (currently fixed with a hack, but fails randomly): [Open vscode issue](https://github.com/Microsoft/vscode/issues/11485)
 
 ## Release Notes
 
+### 0.0.4
+
+Candidate for preview release on the vscode marketplace.
+
 ### 0.0.1
 
 Initial release but still heavily a work in progress.

package.json

@@ -1,19 +1,19 @@
 {
-    "name": "git-codelens",
+    "name": "gitlens",
-    "version": "0.0.1",
+    "version": "0.0.4",
     "author": "Eric Amodio",
     "publisher": "eamodio",
     "engines": {
         "vscode": "^1.3.0"
     },
     "license": "SEE LICENSE IN LICENSE",
-    "displayName": "Git CodeLens",
+    "displayName": "GitLens",
-    "description": "Provides Git blame information in CodeLens",
+    "description": "Provides Git information in CodeLens",
     "categories": [
         "Other"
     ],
     "keywords": [
-        "git", "gitblame", "blame"
+        "git", "gitblame", "blame", "codelens"
     ],
     "galleryBanner": {
         "color": "#0000FF",
@@ -23,9 +23,53 @@
     "main": "./out/src/extension",
     "contributes": {
         "commands": [{
-            "command": "git.codelen.showBlameHistory",
+            "command": "gitlens.diffWithPrevious",
-            "title": "Show Blame History",
+            "title": "GitLens: Open Diff with Previous Commit",
-            "category": "Git"
+            "category": "GitLens"
+        },
+        {
+            "command": "gitlens.diffWithWorking",
+            "title": "GitLens: Open Diff with Working Tree",
+            "category": "GitLens"
+        },
+        {
+            "command": "gitlens.showBlame",
+            "title": "GitLens: Show Git Blame",
+            "category": "GitLens"
+        },
+        {
+            "command": "gitlens.toggleBlame",
+            "title": "GitLens: Toggle Git Blame",
+            "category": "GitLens"
+        }],
+        "menus": {
+            "editor/title": [{
+                "when": "editorTextFocus",
+                "command": "gitlens.toggleBlame",
+                "group": "gitlens"
+            }],
+            "editor/context": [
+            {
+                "when": "editorTextFocus",
+                "command": "gitlens.diffWithWorking",
+                "group": "gitlens@1.0"
+            },
+            {
+                "when": "editorTextFocus",
+                "command": "gitlens.diffWithPrevious",
+                "group": "gitlens@1.1"
+            },
+            {
+                "when": "editorTextFocus",
+                "command": "gitlens.toggleBlame",
+                "group": "gitlens-blame@1.2"
+            }]
+        },
+        "keybindings": [{
+            "command": "gitlens.toggleBlame",
+            "key": "alt+b",
+            "mac": "alt+b",
+            "when": "editorTextFocus"
         }]
     },
     "activationEvents": [
@@ -38,15 +82,12 @@
         "tmp": "^0.0.28"
     },
     "devDependencies": {
-        "typescript": "^1.8.10",
+        "typescript": "^2.0.0",
         "vscode": "^0.11.17"
     },
-    "extensionDependencies": [
-        "donjayamanne.githistory"
-    ],
     "scripts": {
         "vscode:prepublish": "node ./node_modules/vscode/bin/compile",
         "compile": "node ./node_modules/vscode/bin/compile -watch -p ./",
-        "postinstall": "node ./node_modules/vscode/bin/install && tsc"
+        "postinstall": "node ./node_modules/vscode/bin/install"
     }
 }

src/codeLensProvider.ts

@@ -1,136 +0,0 @@
-'use strict';
-import {CancellationToken, CodeLens, CodeLensProvider, commands, Location, Position, Range, SymbolInformation, SymbolKind, TextDocument, Uri} from 'vscode';
-import {Commands, VsCodeCommands} from './constants';
-import {IGitBlameLine, gitBlame} from './git';
-import {toGitBlameUri} from './gitBlameUri';
-import * as moment from 'moment';
-
-export class GitBlameCodeLens extends CodeLens {
-    constructor(private blame: Promise<IGitBlameLine[]>, public repoPath: string, public fileName: string, private blameRange: Range, range: Range) {
-        super(range);
-    }
-
-    getBlameLines(): Promise<IGitBlameLine[]> {
-        return this.blame.then(allLines => allLines.slice(this.blameRange.start.line, this.blameRange.end.line + 1));
-    }
-
-    static toUri(lens: GitBlameCodeLens, index: number, line: IGitBlameLine, lines: IGitBlameLine[], commits: string[]): Uri {
-        return toGitBlameUri(Object.assign({ repoPath: lens.repoPath, index: index, range: lens.blameRange, lines: lines, commits: commits }, line));
-    }
-}
-
-export class GitHistoryCodeLens extends CodeLens {
-    constructor(public repoPath: string, public fileName: string, range: Range) {
-        super(range);
-    }
-
-    // static toUri(lens: GitHistoryCodeLens, index: number): Uri {
-    //     return toGitBlameUri(Object.assign({ repoPath: lens.repoPath, index: index, range: lens.blameRange, lines: lines }, line));
-    // }
-}
-
-export default class GitCodeLensProvider implements CodeLensProvider {
-    constructor(public repoPath: string) { }
-
-    provideCodeLenses(document: TextDocument, token: CancellationToken): CodeLens[] | Thenable<CodeLens[]> {
-        // TODO: Should I wait here?
-        const blame = gitBlame(document.fileName);
-
-        return (commands.executeCommand(VsCodeCommands.ExecuteDocumentSymbolProvider, document.uri) as Promise<SymbolInformation[]>).then(symbols => {
-            let lenses: CodeLens[] = [];
-            symbols.forEach(sym => this._provideCodeLens(document, sym, blame, lenses));
-
-            // Check if we have a lens for the whole document -- if not add one
-            if (!lenses.find(l => l.range.start.line === 0 && l.range.end.line === 0)) {
-                const docRange = document.validateRange(new Range(0, 1000000, 1000000, 1000000));
-                lenses.push(new GitBlameCodeLens(blame, this.repoPath, document.fileName, docRange, new Range(0, 0, 0, docRange.start.character)));
-                lenses.push(new GitHistoryCodeLens(this.repoPath, document.fileName, docRange.with(new Position(docRange.start.line, docRange.start.character + 1))));
-            }
-            return lenses;
-        });
-    }
-
-    private _provideCodeLens(document: TextDocument, symbol: SymbolInformation, blame: Promise<IGitBlameLine[]>, lenses: CodeLens[]): void {
-        switch (symbol.kind) {
-            case SymbolKind.Package:
-            case SymbolKind.Module:
-            case SymbolKind.Class:
-            case SymbolKind.Interface:
-            case SymbolKind.Constructor:
-            case SymbolKind.Method:
-            case SymbolKind.Property:
-            case SymbolKind.Field:
-            case SymbolKind.Function:
-            case SymbolKind.Enum:
-                break;
-            default:
-                return;
-        }
-
-        const line = document.lineAt(symbol.location.range.start);
-        lenses.push(new GitBlameCodeLens(blame, this.repoPath, document.fileName, symbol.location.range, line.range.with(new Position(line.range.start.line, line.firstNonWhitespaceCharacterIndex))));
-        lenses.push(new GitHistoryCodeLens(this.repoPath, document.fileName, line.range.with(new Position(line.range.start.line, line.firstNonWhitespaceCharacterIndex + 1))));
-    }
-
-    resolveCodeLens(lens: CodeLens, token: CancellationToken): Thenable<CodeLens> {
-        if (lens instanceof GitBlameCodeLens) return this._resolveGitBlameCodeLens(lens, token);
-        if (lens instanceof GitHistoryCodeLens) return this._resolveGitHistoryCodeLens(lens, token);
-    }
-
-    _resolveGitBlameCodeLens(lens: GitBlameCodeLens, token: CancellationToken): Thenable<CodeLens> {
-        return new Promise<CodeLens>((resolve, reject) => {
-            lens.getBlameLines().then(lines => {
-                if (!lines.length) {
-                    console.error('No blame lines found', lens);
-                    reject(null);
-                    return;
-                }
-
-                let recentLine = lines[0];
-
-                let locations: Location[] = [];
-                if (lines.length > 1) {
-                    let sorted = lines.sort((a, b) => b.date.getTime() - a.date.getTime());
-                    recentLine = sorted[0];
-
-                    // console.log(lens.fileName, 'Blame lines:', sorted);
-
-                    let map: Map<string, IGitBlameLine[]> = new Map();
-                    sorted.forEach(l => {
-                        let item = map.get(l.sha);
-                        if (item) {
-                            item.push(l);
-                        } else {
-                            map.set(l.sha, [l]);
-                        }
-                    });
-
-                    const commits = Array.from(map.keys());
-                    Array.from(map.values()).forEach((lines, i) => {
-                        const uri = GitBlameCodeLens.toUri(lens, i + 1, lines[0], lines, commits);
-                        lines.forEach(l => locations.push(new Location(uri, new Position(l.originalLine, 0))));
-                    });
-                } else {
-                    locations = [new Location(GitBlameCodeLens.toUri(lens, 1, recentLine, lines, [recentLine.sha]), lens.range.start)];
-                }
-
-                lens.command = {
-                    title: `${recentLine.author}, ${moment(recentLine.date).fromNow()}`,
-                    command: Commands.ShowBlameHistory,
-                    arguments: [Uri.file(lens.fileName), lens.range.start, locations]
-                };
-                resolve(lens);
-            });
-        });//.catch(ex => Promise.reject(ex)); // TODO: Figure out a better way to stop the codelens from appearing
-    }
-
-    _resolveGitHistoryCodeLens(lens: GitHistoryCodeLens, token: CancellationToken): Thenable<CodeLens> {
-        // TODO: Play with this more -- get this to open the correct diff to the right place
-        lens.command = {
-            title: `View History`,
-            command: 'git.viewFileHistory', // viewLineHistory
-            arguments: [Uri.file(lens.fileName)]
-        };
-        return Promise.resolve(lens);
-    }
-}

src/commands.ts

@@ -0,0 +1,143 @@
+'use strict'
+import {commands, DecorationOptions, Disposable, OverviewRulerLane, Position, Range, TextEditor, TextEditorEdit, TextEditorDecorationType, Uri, window} from 'vscode';
+import {BuiltInCommands, Commands} from './constants';
+import GitProvider from './gitProvider';
+import GitBlameController from './gitBlameController';
+import {basename} from 'path';
+import * as moment from 'moment';
+
+abstract class Command extends Disposable {
+    private _subscriptions: Disposable;
+
+    constructor(command: Commands) {
+        super(() => this.dispose());
+        this._subscriptions = commands.registerCommand(command, this.execute, this);
+    }
+
+    dispose() {
+        this._subscriptions && this._subscriptions.dispose();
+    }
+
+    abstract execute(...args): any;
+}
+
+abstract class EditorCommand extends Disposable {
+    private _subscriptions: Disposable;
+
+    constructor(command: Commands) {
+        super(() => this.dispose());
+        this._subscriptions = commands.registerTextEditorCommand(command, this.execute, this);
+    }
+
+    dispose() {
+        this._subscriptions && this._subscriptions.dispose();
+    }
+
+    abstract execute(editor: TextEditor, edit: TextEditorEdit, ...args): any;
+}
+
+export class DiffWithPreviousCommand extends EditorCommand {
+    constructor(private git: GitProvider) {
+        super(Commands.DiffWithPrevious);
+    }
+
+    execute(editor: TextEditor, edit: TextEditorEdit, uri?: Uri, sha?: string, compareWithSha?: string, line?: number) {
+        line = line || editor.selection.active.line;
+        if (!sha) {
+            return this.git.getBlameForLine(uri.path, line)
+                .then(blame => commands.executeCommand(Commands.DiffWithPrevious, uri, blame.commit.sha, blame.commit.previousSha));
+        }
+
+        if (!compareWithSha) {
+            return window.showInformationMessage(`Commit ${sha} has no previous commit`);
+        }
+
+        return Promise.all([this.git.getVersionedFile(uri.path, sha), this.git.getVersionedFile(uri.path, compareWithSha)])
+            .then(values => {
+                const [source, compare] = values;
+                const fileName = basename(uri.path);
+                return commands.executeCommand(BuiltInCommands.Diff, Uri.file(compare), Uri.file(source), `${fileName} (${compareWithSha}) ↔ ${fileName} (${sha})`)
+                    // TODO: Moving doesn't always seem to work -- or more accurately it seems like it moves down that number of lines from the current line
+                    // which for a diff could be the first difference
+                    .then(() => commands.executeCommand(BuiltInCommands.CursorMove, { to: 'down', value: line }));
+            });
+    }
+}
+
+export class DiffWithWorkingCommand extends EditorCommand {
+    constructor(private git: GitProvider) {
+        super(Commands.DiffWithWorking);
+    }
+
+    execute(editor: TextEditor, edit: TextEditorEdit, uri?: Uri, sha?: string, line?: number) {
+        line = line || editor.selection.active.line;
+        if (!sha) {
+            return this.git.getBlameForLine(uri.path, line)
+                .then(blame => commands.executeCommand(Commands.DiffWithWorking, uri, blame.commit.sha));
+        };
+
+        return this.git.getVersionedFile(uri.path, sha).then(compare => {
+            const fileName = basename(uri.path);
+            return commands.executeCommand(BuiltInCommands.Diff, Uri.file(compare), uri, `${fileName} (${sha}) ↔ ${fileName} (index)`)
+                // TODO: Moving doesn't always seem to work -- or more accurately it seems like it moves down that number of lines from the current line
+                // which for a diff could be the first difference
+                .then(() => commands.executeCommand(BuiltInCommands.CursorMove, { to: 'down', value: line }));
+        });
+    }
+}
+
+export class ShowBlameCommand extends EditorCommand {
+    constructor(private git: GitProvider, private blameController: GitBlameController) {
+        super(Commands.ShowBlame);
+    }
+
+    execute(editor: TextEditor, edit: TextEditorEdit, uri?: Uri, sha?: string) {
+        if (sha) {
+            return this.blameController.toggleBlame(editor, sha);
+        }
+
+        const activeLine = editor.selection.active.line;
+        return this.git.getBlameForLine(editor.document.fileName, activeLine)
+            .then(blame => this.blameController.showBlame(editor, blame.commit.sha));
+    }
+}
+
+export class ShowBlameHistoryCommand extends EditorCommand {
+    constructor(private git: GitProvider) {
+        super(Commands.ShowBlameHistory);
+    }
+
+    execute(editor: TextEditor, edit: TextEditorEdit, uri?: Uri, range?: Range, position?: Position) {
+        // If the command is executed manually -- treat it as a click on the root lens (i.e. show blame for the whole file)
+        if (!uri) {
+            const doc = editor.document;
+            if (doc) {
+                uri = doc.uri;
+                range = doc.validateRange(new Range(0, 0, 1000000, 1000000));
+                position = doc.validateRange(new Range(0, 0, 0, 1000000)).start;
+            }
+
+            if (!uri) return;
+        }
+
+        return this.git.getBlameLocations(uri.path, range).then(locations => {
+            return commands.executeCommand(BuiltInCommands.ShowReferences, uri, position, locations);
+        });
+    }
+}
+
+export class ToggleBlameCommand extends EditorCommand {
+    constructor(private git: GitProvider, private blameController: GitBlameController) {
+        super(Commands.ToggleBlame);
+    }
+
+    execute(editor: TextEditor, edit: TextEditorEdit, uri?: Uri, sha?: string) {
+        if (sha) {
+            return this.blameController.toggleBlame(editor, sha);
+        }
+
+        const activeLine = editor.selection.active.line;
+        return this.git.getBlameForLine(editor.document.fileName, activeLine)
+            .then(blame => this.blameController.toggleBlame(editor, blame.commit.sha));
+    }
+}

src/constants.ts

@@ -1,15 +1,37 @@
-export type Commands = 'git.action.showBlameHistory';
+'use strict'
-export const Commands = {
+
-    ShowBlameHistory: 'git.action.showBlameHistory' as Commands
+export const DiagnosticCollectionName = 'gitlens';
+export const DiagnosticSource = 'GitLens';
+export const RepoPath = 'repoPath';
+
+export type BuiltInCommands = 'cursorMove' | 'vscode.diff' | 'vscode.executeDocumentSymbolProvider' | 'vscode.executeCodeLensProvider' | 'editor.action.showReferences' | 'editor.action.toggleRenderWhitespace';
+export const BuiltInCommands = {
+    CursorMove: 'cursorMove' as BuiltInCommands,
+    Diff: 'vscode.diff' as BuiltInCommands,
+    ExecuteDocumentSymbolProvider: 'vscode.executeDocumentSymbolProvider' as BuiltInCommands,
+    ExecuteCodeLensProvider: 'vscode.executeCodeLensProvider' as BuiltInCommands,
+    ShowReferences: 'editor.action.showReferences' as BuiltInCommands,
+    ToggleRenderWhitespace: 'editor.action.toggleRenderWhitespace' as BuiltInCommands
 }
 
-export type DocumentSchemes = 'gitblame';
+export type Commands = 'gitlens.diffWithPrevious' | 'gitlens.diffWithWorking' | 'gitlens.showBlame' | 'gitlens.showHistory' | 'gitlens.toggleBlame';
+export const Commands = {
+    DiffWithPrevious: 'gitlens.diffWithPrevious' as Commands,
+    DiffWithWorking: 'gitlens.diffWithWorking' as Commands,
+    ShowBlame: 'gitlens.showBlame' as Commands,
+    ShowBlameHistory: 'gitlens.showHistory' as Commands,
+    ToggleBlame: 'gitlens.toggleBlame' as Commands,
+}
+
+export type DocumentSchemes = 'file' | 'git' | 'gitblame';
 export const DocumentSchemes = {
+    File: 'file' as DocumentSchemes,
+    Git: 'git' as DocumentSchemes,
     GitBlame: 'gitblame' as DocumentSchemes
 }
 
-export type VsCodeCommands = 'vscode.executeDocumentSymbolProvider' | 'editor.action.showReferences';
+export type WorkspaceState = 'hasGitHistoryExtension' | 'repoPath';
-export const VsCodeCommands = {
+export const WorkspaceState = {
-    ExecuteDocumentSymbolProvider: 'vscode.executeDocumentSymbolProvider' as VsCodeCommands,
+    HasGitHistoryExtension: 'hasGitHistoryExtension' as WorkspaceState,
-    ShowReferences: 'editor.action.showReferences' as VsCodeCommands
+    RepoPath: 'repoPath' as WorkspaceState
 }

src/definitionProvider.ts

@@ -1,21 +0,0 @@
-// 'use strict';
-// import {CancellationToken, CodeLens, commands, DefinitionProvider, Position, Location, TextDocument, Uri} from 'vscode';
-// import {GitCodeLens} from './codeLensProvider';
-
-// export default class GitDefinitionProvider implements DefinitionProvider {
-//     public provideDefinition(document: TextDocument, position: Position, token: CancellationToken): Promise<Location> {
-//         return (commands.executeCommand('vscode.executeCodeLensProvider', document.uri) as Promise<CodeLens[]>).then(lenses => {
-//             let matches: CodeLens[] = [];
-//             lenses.forEach(lens => {
-//                 if (lens instanceof GitCodeLens && lens.blameRange.contains(position)) {
-//                     matches.push(lens);
-//                 }
-//             });
-
-//             if (matches.length) {
-//                 return new Location(Uri.parse(), position);
-//             }
-//             return null;
-//         });
-//     }
-// }

src/extension.ts

@@ -1,30 +1,44 @@
 'use strict';
-import {commands, DocumentSelector, ExtensionContext, languages, workspace} from 'vscode';
+import {CodeLens, DocumentSelector, ExtensionContext, extensions, languages, OverviewRulerLane, window, workspace} from 'vscode';
-import GitCodeLensProvider from './codeLensProvider';
+import GitContentProvider from './gitContentProvider';
-import GitContentProvider from './contentProvider';
+import GitBlameCodeLensProvider from './gitBlameCodeLensProvider';
-import {gitRepoPath} from './git';
+import GitBlameContentProvider from './gitBlameContentProvider';
-import {Commands, VsCodeCommands} from './constants';
+import GitBlameController from './gitBlameController';
+import GitProvider from './gitProvider';
+import {DiffWithPreviousCommand, DiffWithWorkingCommand, ShowBlameCommand, ShowBlameHistoryCommand, ToggleBlameCommand} from './commands';
+import {WorkspaceState} from './constants';
 
 // this method is called when your extension is activated
 export function activate(context: ExtensionContext) {
     // Workspace not using a folder. No access to git repo.
     if (!workspace.rootPath) {
-        console.warn('Git CodeLens inactive: no rootPath');
+        console.warn('GitLens inactive: no rootPath');
 
         return;
     }
 
-    console.log(`Git CodeLens active: ${workspace.rootPath}`);
+    console.log(`GitLens active: ${workspace.rootPath}`);
 
-    gitRepoPath(workspace.rootPath).then(repoPath => {
+    const git = new GitProvider(context);
-        context.subscriptions.push(workspace.registerTextDocumentContentProvider(GitContentProvider.scheme, new GitContentProvider(context)));
+    context.subscriptions.push(git);
 
-        context.subscriptions.push(commands.registerCommand(Commands.ShowBlameHistory, (...args) => {
+    git.getRepoPath(workspace.rootPath).then(repoPath => {
-            return commands.executeCommand(VsCodeCommands.ShowReferences, ...args);
+        context.workspaceState.update(WorkspaceState.RepoPath, repoPath);
-        }));
+        //context.workspaceState.update(WorkspaceState.HasGitHistoryExtension, extensions.getExtension('donjayamanne.githistory') !== undefined);
 
-        const selector: DocumentSelector = { scheme: 'file' };
+        context.subscriptions.push(workspace.registerTextDocumentContentProvider(GitContentProvider.scheme, new GitContentProvider(context, git)));
-        context.subscriptions.push(languages.registerCodeLensProvider(selector, new GitCodeLensProvider(repoPath)));
+        context.subscriptions.push(workspace.registerTextDocumentContentProvider(GitBlameContentProvider.scheme, new GitBlameContentProvider(context, git)));
+
+        context.subscriptions.push(languages.registerCodeLensProvider(GitBlameCodeLensProvider.selector, new GitBlameCodeLensProvider(context, git)));
+
+        const blameController = new GitBlameController(context, git);
+        context.subscriptions.push(blameController);
+
+        context.subscriptions.push(new DiffWithWorkingCommand(git));
+        context.subscriptions.push(new DiffWithPreviousCommand(git));
+        context.subscriptions.push(new ShowBlameCommand(git, blameController));
+        context.subscriptions.push(new ToggleBlameCommand(git, blameController));
+        context.subscriptions.push(new ShowBlameHistoryCommand(git));
     }).catch(reason => console.warn(reason));
 }
 

src/git.ts

@@ -1,75 +1,94 @@
 'use strict';
-import {basename, dirname, extname} from 'path';
+import {basename, dirname, extname, isAbsolute, relative} from 'path';
 import * as fs from 'fs';
 import * as tmp from 'tmp';
 import {spawnPromise} from 'spawn-rx';
 
-export declare interface IGitBlameLine {
+function gitCommand(cwd: string,  ...args) {
-    sha: string;
+    console.log('git', ...args);
-    file: string;
+    return spawnPromise('git', args, { cwd: cwd });
-    originalLine: number;
-    author: string;
-    date: Date;
-    line: number;
-    //code: string;
 }
 
-export function gitRepoPath(cwd) {
+export default class Git {
-    return gitCommand(cwd, 'rev-parse', '--show-toplevel').then(data => data.replace(/\r?\n|\r/g, ''));
+    static normalizePath(fileName: string, repoPath: string) {
-}
+        fileName = fileName.replace(/\\/g, '/');
+        return isAbsolute(fileName) ? relative(repoPath, fileName) : fileName;
+    }
 
-const blameMatcher = /^([\^0-9a-fA-F]{8})\s([\S]*)\s+([0-9\S]+)\s\((.*)\s([0-9]{4}-[0-9]{2}-[0-9]{2}\s[0-9]{2}:[0-9]{2}:[0-9]{2}\s[-|+][0-9]{4})\s+([0-9]+)\)(.*)$/gm;
+    static repoPath(cwd: string) {
+        return gitCommand(cwd, 'rev-parse', '--show-toplevel').then(data => data.replace(/\r?\n|\r/g, ''));
+    }
 
-export function gitBlame(fileName: string) {
+    static blame(fileName: string, repoPath: string, sha?: string) {
-    console.log('git', 'blame', '-fnw', '--root', '--', fileName);
+        fileName = Git.normalizePath(fileName, repoPath);
-    return gitCommand(dirname(fileName), 'blame', '-fnw', '--root', '--', fileName).then(data => {
+
-        let lines: Array<IGitBlameLine> = [];
+        if (sha) {
-        let m: Array<string>;
+            return gitCommand(repoPath, 'blame', '-fn', '--root', `${sha}^`, '--', fileName);
-        while ((m = blameMatcher.exec(data)) != null) {
-            lines.push({
-                sha: m[1],
-                file: m[2].trim(),
-                originalLine: parseInt(m[3], 10) - 1,
-                author: m[4].trim(),
-                date: new Date(m[5]),
-                line: parseInt(m[6], 10) - 1
-                //code: m[7]
-            });
         }
-        return lines;
-    });
-}
 
-export function gitGetVersionFile(repoPath: string, sha: string, source: string): Promise<string> {
+        return gitCommand(repoPath, 'blame', '-fn', '--root', '--', fileName);
-    return new Promise<string>((resolve, reject) => {
+            // .then(s => { console.log(s); return s; })
-        gitCommand(repoPath, 'show', `${sha.replace('^', '')}:${source.replace(/\\/g, '/')}`).then(data => {
+            // .catch(ex => console.error(ex));
-            let ext = extname(source);
+    }
-            tmp.file({ prefix: `${basename(source, ext)}-${sha}_`, postfix: ext }, (err, destination, fd, cleanupCallback) => {
-                if (err) {
-                    reject(err);
-                    return;
-                }
 
-                console.log("File: ", destination);
+    static blamePorcelain(fileName: string, repoPath: string, sha?: string) {
-                console.log("Filedescriptor: ", fd);
+        fileName = Git.normalizePath(fileName, repoPath);
 
-                fs.appendFile(destination, data, err => {
+        if (sha) {
+            return gitCommand(repoPath, 'blame', '--porcelain', '--root', `${sha}^`, '--', fileName);
+        }
+
+        return gitCommand(repoPath, 'blame', '--porcelain', '--root', '--', fileName);
+            // .then(s => { console.log(s); return s; })
+            // .catch(ex => console.error(ex));
+    }
+
+    static getVersionedFile(fileName: string, repoPath: string, sha: string) {
+        return new Promise<string>((resolve, reject) => {
+            Git.getVersionedFileText(fileName, repoPath, sha).then(data => {
+                let ext = extname(fileName);
+                tmp.file({ prefix: `${basename(fileName, ext)}-${sha}_`, postfix: ext }, (err, destination, fd, cleanupCallback) => {
                     if (err) {
                         reject(err);
                         return;
                     }
-                    resolve(destination);
+
+                    //console.log(`getVersionedFile(${fileName}, ${sha}); destination=${destination}`);
+                    fs.appendFile(destination, data, err => {
+                        if (err) {
+                            reject(err);
+                            return;
+                        }
+                        resolve(destination);
+                    });
                 });
             });
         });
-    });
+    }
-}
 
-export function gitGetVersionText(repoPath: string, sha: string, source: string) {
+    static getVersionedFileText(fileName: string, repoPath: string, sha: string) {
-    console.log('git', 'show', `${sha}:${source.replace(/\\/g, '/')}`);
+        fileName = Git.normalizePath(fileName, repoPath);
-    return gitCommand(repoPath, 'show', `${sha}:${source.replace(/\\/g, '/')}`);
+        sha = sha.replace('^', '');
-}
 
-function gitCommand(cwd: string,  ...args) {
+        return gitCommand(repoPath, 'show', `${sha}:${fileName}`);
-    return spawnPromise('git', args, { cwd: cwd });
+            // .then(s => { console.log(s); return s; })
+            // .catch(ex => console.error(ex));
+    }
+
+    // static getCommitMessage(sha: string, repoPath: string) {
+    //     sha = sha.replace('^', '');
+
+    //     return gitCommand(repoPath, 'show', '-s', '--format=%B', sha);
+    //         // .then(s => { console.log(s); return s; })
+    //         // .catch(ex => console.error(ex));
+    // }
+
+    // static getCommitMessages(fileName: string, repoPath: string) {
+    //     fileName = Git.normalizePath(fileName, repoPath);
+
+    //     // git log --format="%h (%aN %x09 %ai) %s"  --
+    //     return gitCommand(repoPath, 'log', '--oneline', '--', fileName);
+    //         // .then(s => { console.log(s); return s; })
+    //         // .catch(ex => console.error(ex));
+    // }
 }

src/gitBlameCodeLensProvider.ts

@@ -0,0 +1,88 @@
+'use strict';
+import {CancellationToken, CodeLens, CodeLensProvider, commands, DocumentSelector, ExtensionContext, Location, Position, Range, SymbolInformation, SymbolKind, TextDocument, Uri} from 'vscode';
+import {BuiltInCommands, Commands, DocumentSchemes, WorkspaceState} from './constants';
+import GitProvider, {IGitBlame, IGitCommit} from './gitProvider';
+import {join} from 'path';
+import * as moment from 'moment';
+
+export class GitDiffWithWorkingTreeCodeLens extends CodeLens {
+    constructor(private git: GitProvider, public fileName: string, public sha: string, range: Range) {
+        super(range);
+    }
+}
+
+export class GitDiffWithPreviousCodeLens extends CodeLens {
+    constructor(private git: GitProvider, public fileName: string, public sha: string, public compareWithSha: string, range: Range) {
+        super(range);
+    }
+}
+
+export default class GitBlameCodeLensProvider implements CodeLensProvider {
+    static selector: DocumentSelector = { scheme: DocumentSchemes.GitBlame };
+
+    constructor(context: ExtensionContext, private git: GitProvider) { }
+
+    provideCodeLenses(document: TextDocument, token: CancellationToken): CodeLens[] | Thenable<CodeLens[]> {
+        const data = this.git.fromBlameUri(document.uri);
+        const fileName = data.fileName;
+        const sha = data.sha;
+
+        return this.git.getBlameForFile(fileName).then(blame => {
+            const commits = Array.from(blame.commits.values());
+            let index = commits.findIndex(c => c.sha === sha) + 1;
+
+            let previousCommit: IGitCommit;
+            if (index < commits.length) {
+                previousCommit = commits[index];
+            }
+
+            const lenses: CodeLens[] = [];
+
+            // Add codelens to each "group" of blame lines
+            const lines = blame.lines.filter(l => l.sha === sha && l.originalLine >= data.range.start.line && l.originalLine <= data.range.end.line);
+            let lastLine = lines[0].originalLine;
+            lines.forEach(l => {
+                if (l.originalLine !== lastLine + 1) {
+                    lenses.push(new GitDiffWithWorkingTreeCodeLens(this.git, fileName, sha, new Range(l.originalLine, 0, l.originalLine, 1)));
+                    if (previousCommit) {
+                        lenses.push(new GitDiffWithPreviousCodeLens(this.git, fileName, sha, previousCommit.sha, new Range(l.originalLine, 1, l.originalLine, 2)));
+                    }
+                }
+                lastLine = l.originalLine;
+            });
+
+            // Check if we have a lens for the whole document -- if not add one
+            if (!lenses.find(l => l.range.start.line === 0 && l.range.end.line === 0)) {
+                lenses.push(new GitDiffWithWorkingTreeCodeLens(this.git, fileName, sha, new Range(0, 0, 0, 1)));
+                if (previousCommit) {
+                    lenses.push(new GitDiffWithPreviousCodeLens(this.git, fileName, sha, previousCommit.sha, new Range(0, 1, 0, 2)));
+                }
+            }
+
+            return lenses;
+        });
+    }
+
+    resolveCodeLens(lens: CodeLens, token: CancellationToken): Thenable<CodeLens> {
+        if (lens instanceof GitDiffWithWorkingTreeCodeLens) return this._resolveDiffWithWorkingTreeCodeLens(lens, token);
+        if (lens instanceof GitDiffWithPreviousCodeLens) return this._resolveGitDiffWithPreviousCodeLens(lens, token);
+    }
+
+    _resolveDiffWithWorkingTreeCodeLens(lens: GitDiffWithWorkingTreeCodeLens, token: CancellationToken): Thenable<CodeLens> {
+        lens.command = {
+            title: `Compare with Working Tree`,
+            command: Commands.DiffWithWorking,
+            arguments: [Uri.file(join(this.git.repoPath, lens.fileName)), lens.sha]
+        };
+        return Promise.resolve(lens);
+    }
+
+    _resolveGitDiffWithPreviousCodeLens(lens: GitDiffWithPreviousCodeLens, token: CancellationToken): Thenable<CodeLens> {
+        lens.command = {
+            title: `Compare with Previous (${lens.compareWithSha})`,
+            command: Commands.DiffWithPrevious,
+            arguments: [Uri.file(join(this.git.repoPath, lens.fileName)), lens.sha, lens.compareWithSha]
+        };
+        return Promise.resolve(lens);
+    }
+}

src/gitBlameContentProvider.ts

@@ -1,8 +1,7 @@
 'use strict';
 import {Disposable, EventEmitter, ExtensionContext, OverviewRulerLane, Range, TextEditor, TextEditorDecorationType, TextDocumentContentProvider, Uri, window, workspace} from 'vscode';
-import {DocumentSchemes} from './constants';
+import {DocumentSchemes, WorkspaceState} from './constants';
-import {gitGetVersionText} from './git';
+import GitProvider, {IGitBlameUriData} from './gitProvider';
-import {fromGitBlameUri, IGitBlameUriData} from './gitBlameUri';
 import * as moment from 'moment';
 
 export default class GitBlameContentProvider implements TextDocumentContentProvider {
@@ -10,10 +9,9 @@ export default class GitBlameContentProvider implements TextDocumentContentProvi
 
     private _blameDecoration: TextEditorDecorationType;
     private _onDidChange = new EventEmitter<Uri>();
-    // private _subscriptions: Disposable;
+    //private _subscriptions: Disposable;
-    // private _dataMap: Map<string, IGitBlameUriData>;
 
-    constructor(context: ExtensionContext) {
+    constructor(context: ExtensionContext, private git: GitProvider) {
         this._blameDecoration = window.createTextEditorDecorationType({
             dark: {
                 backgroundColor: 'rgba(255, 255, 255, 0.15)',
@@ -30,25 +28,14 @@ export default class GitBlameContentProvider implements TextDocumentContentProvi
             isWholeLine: true
         });
 
-        // this._dataMap = new Map();
+        //this._subscriptions = Disposable.from(
-        // this._subscriptions = Disposable.from(
         //     window.onDidChangeActiveTextEditor(e => e ? console.log(e.document.uri) : console.log('active missing')),
-        //     workspace.onDidOpenTextDocument(d => {
+        //);
-        //         let data = this._dataMap.get(d.uri.toString());
-        //         if (!data) return;
-
-        //         // TODO: This only works on the first load -- not after since it is cached
-        //         this._tryAddBlameDecorations(d.uri, data);
-        //     }),
-        //     workspace.onDidCloseTextDocument(d => {
-        //         this._dataMap.delete(d.uri.toString());
-        //     })
-        // );
     }
 
     dispose() {
         this._onDidChange.dispose();
-        // this._subscriptions && this._subscriptions.dispose();
+        //this._subscriptions && this._subscriptions.dispose();
     }
 
     get onDidChange() {
@@ -60,12 +47,11 @@ export default class GitBlameContentProvider implements TextDocumentContentProvi
     }
 
     provideTextDocumentContent(uri: Uri): string | Thenable<string> {
-        const data = fromGitBlameUri(uri);
+        const data = this.git.fromBlameUri(uri);
-        // this._dataMap.set(uri.toString(), data);
 
         //const editor = this._findEditor(Uri.file(join(data.repoPath, data.file)));
 
-        return gitGetVersionText(data.repoPath, data.sha, data.file).then(text => {
+        return this.git.getVersionedFileText(data.originalFileName || data.fileName, data.sha).then(text => {
             this.update(uri);
 
             // TODO: This only works on the first load -- not after since it is cached
@@ -77,7 +63,7 @@ export default class GitBlameContentProvider implements TextDocumentContentProvi
             return text;
         });
 
-        // return gitGetVersionFile(data.repoPath, data.sha, data.file).then(dst => {
+        // return this.git.getVersionedFile(data.fileName, data.sha).then(dst => {
         //     let uri = Uri.parse(`file:${dst}`)
         //     return workspace.openTextDocument(uri).then(doc => {
         //         this.update(uri);
@@ -100,15 +86,19 @@ export default class GitBlameContentProvider implements TextDocumentContentProvi
         // Needs to be on a timer for some reason because we won't find the editor otherwise -- is there an event?
         let handle = setInterval(() => {
             let editor = this._findEditor(uri);
-            if (editor) {
+            if (!editor) return;
-                clearInterval(handle);
+
-                editor.setDecorations(this._blameDecoration, data.lines.map(l => {
+            clearInterval(handle);
+            this.git.getBlameForShaRange(data.fileName, data.sha, data.range).then(blame => {
+                if (!blame.lines.length) return;
+
+                editor.setDecorations(this._blameDecoration, blame.lines.map(l => {
                     return {
                         range: editor.document.validateRange(new Range(l.originalLine, 0, l.originalLine, 1000000)),
-                        hoverMessage: `${moment(l.date).format('MMMM Do, YYYY hh:MMa')}\n${l.author}\n${l.sha}`
+                        hoverMessage: `${blame.commit.message}\n${blame.commit.author}\n${moment(blame.commit.date).format('MMMM Do, YYYY hh:MM a')}\n${l.sha}`
                     };
                 }));
-            }
+            });
         }, 200);
     }
 

src/gitBlameController.ts

@@ -0,0 +1,188 @@
+'use strict'
+import {commands, DecorationOptions, Diagnostic, DiagnosticCollection, DiagnosticSeverity, Disposable, ExtensionContext, languages, OverviewRulerLane, Position, Range, TextEditor, TextEditorDecorationType, Uri, window, workspace} from 'vscode';
+import {BuiltInCommands, Commands, DocumentSchemes} from './constants';
+import GitProvider, {IGitBlame} from './gitProvider';
+import GitCodeActionsProvider from './gitCodeActionProvider';
+import {DiagnosticCollectionName, DiagnosticSource} from './constants';
+import * as moment from 'moment';
+
+const blameDecoration: TextEditorDecorationType = window.createTextEditorDecorationType({
+    before: {
+        color: '#5a5a5a',
+        margin: '0 1em 0 0',
+        width: '5em'
+    },
+});
+
+let highlightDecoration: TextEditorDecorationType;
+
+export default class GitBlameController extends Disposable {
+    private _controller: GitBlameEditorController;
+    private _disposable: Disposable;
+
+    private _blameDecoration: TextEditorDecorationType;
+    private _highlightDecoration: TextEditorDecorationType;
+
+    constructor(private context: ExtensionContext, private git: GitProvider) {
+        super(() => this.dispose());
+
+        if (!highlightDecoration) {
+            highlightDecoration = window.createTextEditorDecorationType({
+                dark: {
+                    backgroundColor: 'rgba(255, 255, 255, 0.15)',
+                    gutterIconPath: context.asAbsolutePath('images/blame-dark.png'),
+                    overviewRulerColor: 'rgba(255, 255, 255, 0.75)',
+                },
+                light: {
+                    backgroundColor: 'rgba(0, 0, 0, 0.15)',
+                    gutterIconPath: context.asAbsolutePath('images/blame-light.png'),
+                    overviewRulerColor: 'rgba(0, 0, 0, 0.75)',
+                },
+                gutterIconSize: 'contain',
+                overviewRulerLane: OverviewRulerLane.Right,
+                isWholeLine: true
+            });
+        }
+
+        const subscriptions: Disposable[] = [];
+
+        subscriptions.push(window.onDidChangeActiveTextEditor(e => {
+            if (!this._controller || this._controller.editor === e) return;
+            this.clear();
+        }));
+
+        this._disposable = Disposable.from(...subscriptions);
+    }
+
+    dispose() {
+        this.clear();
+        this._disposable && this._disposable.dispose();
+    }
+
+    clear() {
+        this._controller && this._controller.dispose();
+        this._controller = null;
+    }
+
+    showBlame(editor: TextEditor, sha: string) {
+        if (!editor) {
+            this.clear();
+            return;
+        }
+
+        if (!this._controller) {
+            this._controller = new GitBlameEditorController(this.context, this.git, editor);
+            return this._controller.applyBlame(sha);
+        }
+    }
+
+    toggleBlame(editor: TextEditor, sha: string) {
+        if (!editor || this._controller) {
+            this.clear();
+            return;
+        }
+
+        return this.showBlame(editor, sha);
+    }
+}
+
+class GitBlameEditorController extends Disposable {
+    private _disposable: Disposable;
+    private _blame: Promise<IGitBlame>;
+    private _diagnostics: DiagnosticCollection;
+    private _toggleWhitespace: boolean;
+
+    constructor(private context: ExtensionContext, private git: GitProvider, public editor: TextEditor) {
+        super(() => this.dispose());
+
+        const fileName = this.editor.document.uri.path;
+        this._blame = this.git.getBlameForFile(fileName);
+
+        const subscriptions: Disposable[] = [];
+
+        this._diagnostics = languages.createDiagnosticCollection(DiagnosticCollectionName);
+        subscriptions.push(this._diagnostics);
+
+        subscriptions.push(languages.registerCodeActionsProvider(GitCodeActionsProvider.selector, new GitCodeActionsProvider(this.context, this.git)));
+
+        subscriptions.push(window.onDidChangeTextEditorSelection(e => {
+            const activeLine = e.selections[0].active.line;
+
+            this._diagnostics.clear();
+
+            this.git.getBlameForLine(e.textEditor.document.fileName, activeLine)
+                .then(blame => {
+                    // Add the bogus diagnostics to provide code actions for this sha
+                    this._diagnostics.set(editor.document.uri, [this._getDiagnostic(editor, activeLine, blame.commit.sha)]);
+
+                    this.applyHighlight(blame.commit.sha);
+                });
+        }));
+
+        this._disposable = Disposable.from(...subscriptions);
+    }
+
+    dispose() {
+        if (this.editor) {
+            if (this._toggleWhitespace) {
+                commands.executeCommand(BuiltInCommands.ToggleRenderWhitespace);
+            }
+
+            this.editor.setDecorations(blameDecoration, []);
+            this.editor.setDecorations(highlightDecoration, []);
+            this.editor = null;
+        }
+
+        this._disposable && this._disposable.dispose();
+    }
+
+    _getDiagnostic(editor, line, sha) {
+        const diag = new Diagnostic(editor.document.validateRange(new Range(line, 0, line, 1000000)), `Diff commit ${sha}`, DiagnosticSeverity.Hint);
+        diag.source = DiagnosticSource;
+        return diag;
+    }
+
+    applyBlame(sha: string) {
+        return this._blame.then(blame => {
+            if (!blame.lines.length) return;
+
+            // HACK: Until https://github.com/Microsoft/vscode/issues/11485 is fixed -- toggle whitespace off
+            this._toggleWhitespace = workspace.getConfiguration('editor').get('renderWhitespace') as boolean;
+            if (this._toggleWhitespace) {
+                commands.executeCommand(BuiltInCommands.ToggleRenderWhitespace);
+            }
+
+            const blameDecorationOptions: DecorationOptions[] = blame.lines.map(l => {
+                const c = blame.commits.get(l.sha);
+                return {
+                    range: this.editor.document.validateRange(new Range(l.line, 0, l.line, 0)),
+                    hoverMessage: `${c.message}\n${c.author}, ${moment(c.date).format('MMMM Do, YYYY hh:MM a')}`,
+                    renderOptions: { before: { contentText: `${l.sha.substring(0, 8)}`, } }
+                };
+            });
+
+            this.editor.setDecorations(blameDecoration, blameDecorationOptions);
+
+            sha = sha || blame.commits.values().next().value.sha;
+
+            // Add the bogus diagnostics to provide code actions for this sha
+            const activeLine = this.editor.selection.active.line;
+            this._diagnostics.clear();
+            this._diagnostics.set(this.editor.document.uri, [this._getDiagnostic(this.editor, activeLine, sha)]);
+
+            return this.applyHighlight(sha);
+        });
+    }
+
+    applyHighlight(sha: string) {
+        return this._blame.then(blame => {
+            if (!blame.lines.length) return;
+
+            const highlightDecorationRanges = blame.lines
+                .filter(l => l.sha === sha)
+                .map(l => this.editor.document.validateRange(new Range(l.line, 0, l.line, 1000000)));
+
+            this.editor.setDecorations(highlightDecoration, highlightDecorationRanges);
+        });
+    }
+}

src/gitBlameUri.ts

@@ -1,28 +0,0 @@
-import {Range, Uri} from 'vscode';
-import {DocumentSchemes} from './constants';
-import {IGitBlameLine} from './git';
-import {basename, dirname, extname} from 'path';
-import * as moment from 'moment';
-
-export interface IGitBlameUriData extends IGitBlameLine {
-    repoPath: string,
-    range: Range,
-    index: number,
-    lines: IGitBlameLine[],
-    commits: string[]
-}
-
-export function toGitBlameUri(data: IGitBlameUriData) {
-    const pad = n => ("0000000" + n).slice(-("" + data.commits.length).length);
-
-    let ext = extname(data.file);
-    let path = `${dirname(data.file)}/${data.sha}: ${basename(data.file, ext)}${ext}`;
-    // TODO: Need to specify an index here, since I can't control the sort order -- just alphabetic or by file location
-    return Uri.parse(`${DocumentSchemes.GitBlame}:${pad(data.index)}. ${data.author}, ${moment(data.date).format('MMM D, YYYY hh:MMa')} - ${path}?${JSON.stringify(data)}`);
-}
-
-export function fromGitBlameUri(uri: Uri): IGitBlameUriData {
-    let data = JSON.parse(uri.query);
-    data.range = new Range(data.range[0].line, data.range[0].character, data.range[1].line, data.range[1].character);
-    return data;
-}

src/gitCodeActionProvider.ts

@@ -0,0 +1,39 @@
+'use strict';
+import {CancellationToken, CodeActionContext, CodeActionProvider, Command, DocumentSelector, ExtensionContext, Range, TextDocument, Uri, window} from 'vscode';
+import {Commands, DocumentSchemes} from './constants';
+import GitProvider from './gitProvider';
+import {DiagnosticSource} from './constants';
+
+export default class GitCodeActionProvider implements CodeActionProvider {
+    static selector: DocumentSelector = { scheme: DocumentSchemes.File };
+
+    constructor(context: ExtensionContext, private git: GitProvider) { }
+
+    provideCodeActions(document: TextDocument, range: Range, context: CodeActionContext, token: CancellationToken): Command[] | Thenable<Command[]> {
+        if (!context.diagnostics.some(d => d.source === DiagnosticSource)) {
+            return [];
+        }
+
+        return this.git.getBlameForLine(document.fileName, range.start.line)
+            .then(blame => {
+                const actions: Command[] = [];
+                if (blame.commit.sha) {
+                    actions.push({
+                        title: `GitLens: Diff ${blame.commit.sha} with working tree`,
+                        command: Commands.DiffWithWorking,
+                        arguments: [Uri.file(document.fileName), blame.commit.sha, blame.line.line]
+                    });
+                }
+
+                if (blame.commit.sha && blame.commit.previousSha) {
+                    actions.push({
+                        title: `GitLens: Diff ${blame.commit.sha} with previous ${blame.commit.previousSha}`,
+                        command: Commands.DiffWithPrevious,
+                        arguments: [Uri.file(document.fileName), blame.commit.sha, blame.commit.previousSha, blame.line.line]
+                    });
+                }
+
+                return actions;
+            });
+    }
+}

src/gitCodeLensProvider.ts

@@ -0,0 +1,156 @@
+'use strict';
+import {CancellationToken, CodeLens, CodeLensProvider, commands, DocumentSelector, ExtensionContext, Location, Position, Range, SymbolInformation, SymbolKind, TextDocument, Uri, window} from 'vscode';
+import {BuiltInCommands, Commands, DocumentSchemes, WorkspaceState} from './constants';
+import GitProvider, {IGitBlame, IGitBlameLines, IGitCommit} from './gitProvider';
+import * as moment from 'moment';
+
+export class GitRecentChangeCodeLens extends CodeLens {
+    constructor(private git: GitProvider, public fileName: string, public blameRange: Range, range: Range) {
+        super(range);
+    }
+
+    getBlame(): Promise<IGitBlameLines> {
+        return this.git.getBlameForRange(this.fileName, this.blameRange);
+    }
+}
+
+export class GitBlameCodeLens extends CodeLens {
+    constructor(private git: GitProvider, public fileName: string, public blameRange: Range, range: Range) {
+        super(range);
+    }
+
+    getBlame(): Promise<IGitBlameLines> {
+        return this.git.getBlameForRange(this.fileName, this.blameRange);
+    }
+}
+
+// export class GitHistoryCodeLens extends CodeLens {
+//     constructor(public repoPath: string, public fileName: string, range: Range) {
+//         super(range);
+//     }
+// }
+
+export default class GitCodeLensProvider implements CodeLensProvider {
+    static selector: DocumentSelector = { scheme: DocumentSchemes.File };
+
+    // private hasGitHistoryExtension: boolean;
+
+    constructor(context: ExtensionContext, private git: GitProvider) {
+        // this.hasGitHistoryExtension = context.workspaceState.get(WorkspaceState.HasGitHistoryExtension, false);
+    }
+
+    provideCodeLenses(document: TextDocument, token: CancellationToken): CodeLens[] | Thenable<CodeLens[]> {
+        const fileName = document.fileName;
+        const promise = Promise.all([this.git.getBlameForFile(fileName) as Promise<any>, (commands.executeCommand(BuiltInCommands.ExecuteDocumentSymbolProvider, document.uri) as Promise<any>)]);
+
+        return promise.then(values => {
+            const blame = values[0] as IGitBlame;
+            if (!blame || !blame.lines.length) return [];
+
+            const symbols = values[1] as SymbolInformation[];
+            const lenses: CodeLens[] = [];
+            symbols.forEach(sym => this._provideCodeLens(fileName, document, sym, lenses));
+
+            // Check if we have a lens for the whole document -- if not add one
+            if (!lenses.find(l => l.range.start.line === 0 && l.range.end.line === 0)) {
+                const blameRange = document.validateRange(new Range(0, 1000000, 1000000, 1000000));
+                lenses.push(new GitRecentChangeCodeLens(this.git, fileName, blameRange, new Range(0, 0, 0, blameRange.start.character)));
+                lenses.push(new GitBlameCodeLens(this.git, fileName, blameRange, new Range(0, 1, 0, blameRange.start.character)));
+                // if (this.hasGitHistoryExtension) {
+                //     lenses.push(new GitHistoryCodeLens(this.git.repoPath, fileName, new Range(0, 1, 0, blameRange.start.character)));
+                // }
+            }
+
+            return lenses;
+        });
+    }
+
+    private _provideCodeLens(fileName: string, document: TextDocument, symbol: SymbolInformation, lenses: CodeLens[]): void {
+        let multiline = false;
+        switch (symbol.kind) {
+            case SymbolKind.Package:
+            case SymbolKind.Module:
+            case SymbolKind.Class:
+            case SymbolKind.Interface:
+            case SymbolKind.Constructor:
+            case SymbolKind.Method:
+            case SymbolKind.Function:
+            case SymbolKind.Enum:
+                multiline = true;
+                break;
+            case SymbolKind.Property:
+                multiline = (symbol.location.range.end.line - symbol.location.range.start.line) > 1;
+                break;
+            case SymbolKind.Field:
+                multiline = false;
+                break;
+            default:
+                return;
+        }
+
+        const line = document.lineAt(symbol.location.range.start);
+        if (lenses.length && lenses[lenses.length - 1].range.start.line === line.lineNumber) {
+            return;
+        }
+
+        let startChar = line.text.search(`\\b${symbol.name}\\b`); //line.firstNonWhitespaceCharacterIndex;
+        if (startChar === -1) {
+            startChar = line.firstNonWhitespaceCharacterIndex;
+        } else {
+            startChar += Math.floor(symbol.name.length / 2);
+        }
+
+        lenses.push(new GitRecentChangeCodeLens(this.git, fileName, symbol.location.range, line.range.with(new Position(line.range.start.line, startChar))));
+        startChar++;
+        if (multiline) {
+            lenses.push(new GitBlameCodeLens(this.git, fileName, symbol.location.range, line.range.with(new Position(line.range.start.line, startChar))));
+            startChar++;
+        }
+        // if (this.hasGitHistoryExtension) {
+        //     lenses.push(new GitHistoryCodeLens(this.git.repoPath, fileName, line.range.with(new Position(line.range.start.line, startChar))));
+        // }
+    }
+
+    resolveCodeLens(lens: CodeLens, token: CancellationToken): Thenable<CodeLens> {
+        if (lens instanceof GitRecentChangeCodeLens) return this._resolveGitRecentChangeCodeLens(lens, token);
+        if (lens instanceof GitBlameCodeLens) return this._resolveGitBlameCodeLens(lens, token);
+        // if (lens instanceof GitHistoryCodeLens) return this._resolveGitHistoryCodeLens(lens, token);
+    }
+
+    _resolveGitRecentChangeCodeLens(lens: GitRecentChangeCodeLens, token: CancellationToken): Thenable<CodeLens> {
+        return lens.getBlame().then(blame => {
+            const recentCommit = blame.commits.values().next().value;
+            lens.command = {
+                title: `${recentCommit.author}, ${moment(recentCommit.date).fromNow()}`, // - lines(${lens.blameRange.start.line + 1}-${lens.blameRange.end.line + 1})`,
+                command: Commands.ShowBlameHistory,
+                arguments: [Uri.file(lens.fileName), lens.blameRange, lens.range.start]
+            };
+            return lens;
+        });
+    }
+
+    _resolveGitBlameCodeLens(lens: GitBlameCodeLens, token: CancellationToken): Thenable<CodeLens> {
+        return lens.getBlame().then(blame => {
+            const editor = window.activeTextEditor;
+            const activeLine = editor.selection.active.line;
+
+            const count = blame.authors.size;
+            lens.command = {
+                title: `${count} ${count > 1 ? 'authors' : 'author'} (${blame.authors.values().next().value.name}${count > 1 ? ' and others' : ''})`,
+                command: Commands.ToggleBlame,
+                arguments: [Uri.file(lens.fileName), blame.allLines[activeLine].sha]
+            };
+            return lens;
+        });
+    }
+
+    // _resolveGitHistoryCodeLens(lens: GitHistoryCodeLens, token: CancellationToken): Thenable<CodeLens> {
+    //     // TODO: Play with this more -- get this to open the correct diff to the right place
+    //     lens.command = {
+    //         title: `View History`,
+    //         command: 'git.viewFileHistory', // viewLineHistory
+    //         arguments: [Uri.file(lens.fileName)]
+    //     };
+    //     return Promise.resolve(lens);
+    // }
+}

src/gitContentProvider.ts

@@ -0,0 +1,15 @@
+'use strict';
+import {ExtensionContext, TextDocumentContentProvider, Uri} from 'vscode';
+import {DocumentSchemes} from './constants';
+import GitProvider from './gitProvider';
+
+export default class GitContentProvider implements TextDocumentContentProvider {
+    static scheme = DocumentSchemes.Git;
+
+    constructor(context: ExtensionContext, private git: GitProvider) { }
+
+    provideTextDocumentContent(uri: Uri): string | Thenable<string> {
+        const data = this.git.fromGitUri(uri);
+        return this.git.getVersionedFileText(data.originalFileName || data.fileName, data.sha);
+    }
+}

src/gitProvider.ts

@@ -0,0 +1,391 @@
+'use strict'
+import {Disposable, ExtensionContext, languages, Location, Position, Range, Uri, workspace} from 'vscode';
+import {DocumentSchemes, WorkspaceState} from './constants';
+import GitCodeLensProvider from './gitCodeLensProvider';
+import Git from './git';
+import {basename, dirname, extname} from 'path';
+import * as moment from 'moment';
+import * as _ from 'lodash';
+
+const commitMessageMatcher = /^([\^0-9a-fA-F]{7})\s(.*)$/gm;
+const blamePorcelainMatcher = /^([\^0-9a-fA-F]{40})\s([0-9]+)\s([0-9]+)(?:\s([0-9]+))?$\n(?:^author\s(.*)$\n^author-mail\s(.*)$\n^author-time\s(.*)$\n^author-tz\s(.*)$\n^committer\s(.*)$\n^committer-mail\s(.*)$\n^committer-time\s(.*)$\n^committer-tz\s(.*)$\n^summary\s(.*)$\n(?:^previous\s(.*)?\s(.*)$\n)?^filename\s(.*)$\n)?^(.*)$/gm;
+
+export default class GitProvider extends Disposable {
+    public repoPath: string;
+
+    private _blames: Map<string, Promise<IGitBlame>>;
+    private _disposable: Disposable;
+    private _codeLensProviderSubscription: Disposable;
+
+    // TODO: Needs to be a Map so it can debounce per file
+    private _clearCacheFn: ((string, boolean) => void) & _.Cancelable;
+
+    constructor(private context: ExtensionContext) {
+        super(() => this.dispose());
+
+        this.repoPath = context.workspaceState.get(WorkspaceState.RepoPath) as string;
+
+        // TODO: Cache needs to be cleared on file changes -- createFileSystemWatcher or timeout?
+        this._blames = new Map();
+        this._registerCodeLensProvider();
+        this._clearCacheFn = _.debounce(this._clearBlame.bind(this), 2500);
+
+        const subscriptions: Disposable[] = [];
+
+        subscriptions.push(workspace.onDidCloseTextDocument(d => this._clearBlame(d.fileName)));
+        subscriptions.push(workspace.onDidSaveTextDocument(d => this._clearCacheFn(d.fileName, true)));
+        subscriptions.push(workspace.onDidChangeTextDocument(e => this._clearCacheFn(e.document.fileName, false)));
+
+        this._disposable = Disposable.from(...subscriptions);
+    }
+
+    dispose() {
+        this._blames.clear();
+        this._disposable && this._disposable.dispose();
+        this._codeLensProviderSubscription && this._codeLensProviderSubscription.dispose();
+    }
+
+    private _registerCodeLensProvider() {
+        if (this._codeLensProviderSubscription) {
+            this._codeLensProviderSubscription.dispose();
+        }
+        this._codeLensProviderSubscription = languages.registerCodeLensProvider(GitCodeLensProvider.selector, new GitCodeLensProvider(this.context, this));
+    }
+
+    private _clearBlame(fileName: string, reset?: boolean) {
+        fileName = Git.normalizePath(fileName, this.repoPath);
+        reset = !!reset;
+
+        if (this._blames.delete(fileName.toLowerCase())) {
+            console.log(`GitProvider._clearBlame(${fileName}, ${reset})`);
+
+            if (reset) {
+                // TODO: Killing the code lens provider is too drastic -- makes the editor jump around, need to figure out how to trigger a refresh
+                //this._registerCodeLensProvider();
+            }
+        }
+    }
+
+    getRepoPath(cwd: string) {
+        return Git.repoPath(cwd);
+    }
+
+    getBlameForFile(fileName: string) {
+        fileName = Git.normalizePath(fileName, this.repoPath);
+
+        let blame = this._blames.get(fileName.toLowerCase());
+        if (blame !== undefined) return blame;
+
+        blame = Git.blamePorcelain(fileName, this.repoPath)
+            .then(data => {
+                const authors: Map<string, IGitAuthor> = new Map();
+                const commits: Map<string, IGitCommit> = new Map();
+                const lines: Array<IGitCommitLine> = [];
+
+                let m: Array<string>;
+                while ((m = blamePorcelainMatcher.exec(data)) != null) {
+                    const sha = m[1].substring(0, 8);
+                    let commit = commits.get(sha);
+                    if (!commit) {
+                        const authorName = m[5].trim();
+                        let author = authors.get(authorName);
+                        if (!author) {
+                            author = {
+                                name: authorName,
+                                lineCount: 0
+                            };
+                            authors.set(authorName, author);
+                        }
+
+                        commit = {
+                            sha,
+                            fileName: fileName,
+                            author: authorName,
+                            date: moment(`${m[7]} ${m[8]}`, 'X Z').toDate(),
+                            message: m[13],
+                            lines: []
+                        };
+
+                        const originalFileName = m[16];
+                        if (!fileName.toLowerCase().endsWith(originalFileName.toLowerCase())) {
+                            commit.originalFileName = originalFileName;
+                        }
+
+                        const previousSha = m[14];
+                        if (previousSha) {
+                            commit.previousSha = previousSha.substring(0, 8);
+                            commit.previousFileName = m[15];
+                        }
+
+                        commits.set(sha, commit);
+                    }
+
+                    const line: IGitCommitLine = {
+                        sha,
+                        line: parseInt(m[3], 10) - 1,
+                        originalLine: parseInt(m[2], 10) - 1
+                        //code: m[17]
+                    }
+
+                    commit.lines.push(line);
+                    lines.push(line);
+                }
+
+                commits.forEach(c => authors.get(c.author).lineCount += c.lines.length);
+
+                const sortedAuthors: Map<string, IGitAuthor> = new Map();
+                const values = Array.from(authors.values())
+                    .sort((a, b) => b.lineCount - a.lineCount)
+                    .forEach(a => sortedAuthors.set(a.name, a));
+
+                const sortedCommits: Map<string, IGitCommit> = new Map();
+                Array.from(commits.values())
+                    .sort((a, b) => b.date.getTime() - a.date.getTime())
+                    .forEach(c => sortedCommits.set(c.sha, c));
+
+                return {
+                    authors: sortedAuthors,
+                    commits: sortedCommits,
+                    lines: lines
+                };
+            });
+
+        this._blames.set(fileName.toLowerCase(), blame);
+        return blame;
+    }
+
+    getBlameForLine(fileName: string, line: number): Promise<IGitBlameLine> {
+        return this.getBlameForFile(fileName).then(blame => {
+            const blameLine = blame.lines[line];
+            const commit = blame.commits.get(blameLine.sha);
+            return {
+                author: Object.assign({}, blame.authors.get(commit.author), { lineCount: commit.lines.length }),
+                commit: commit,
+                line: blameLine
+            };
+        });
+    }
+
+    getBlameForRange(fileName: string, range: Range): Promise<IGitBlameLines> {
+        return this.getBlameForFile(fileName).then(blame => {
+            if (!blame.lines.length) return Object.assign({ allLines: blame.lines }, blame);
+
+            if (range.start.line === 0 && range.end.line === blame.lines.length - 1) {
+                return Object.assign({ allLines: blame.lines }, blame);
+            }
+
+            const lines = blame.lines.slice(range.start.line, range.end.line + 1);
+            const shas: Set<string> = new Set();
+            lines.forEach(l => shas.add(l.sha));
+
+            const authors: Map<string, IGitAuthor> = new Map();
+            const commits: Map<string, IGitCommit> = new Map();
+            blame.commits.forEach(c => {
+                if (!shas.has(c.sha)) return;
+
+                const commit: IGitCommit = Object.assign({}, c, { lines: c.lines.filter(l => l.line >= range.start.line && l.line <= range.end.line) });
+                commits.set(c.sha, commit);
+
+                let author = authors.get(commit.author);
+                if (!author) {
+                    author = {
+                        name: commit.author,
+                        lineCount: 0
+                    };
+                    authors.set(author.name, author);
+                }
+
+                author.lineCount += commit.lines.length;
+            });
+
+            const sortedAuthors: Map<string, IGitAuthor> = new Map();
+            Array.from(authors.values())
+                .sort((a, b) => b.lineCount - a.lineCount)
+                .forEach(a => sortedAuthors.set(a.name, a));
+
+            return {
+                authors: sortedAuthors,
+                commits: commits,
+                lines: lines,
+                allLines: blame.lines
+            };
+        });
+    }
+
+    getBlameForShaRange(fileName: string, sha: string, range: Range): Promise<IGitBlameCommitLines> {
+        return this.getBlameForFile(fileName).then(blame => {
+            const lines = blame.lines.slice(range.start.line, range.end.line + 1).filter(l => l.sha === sha);
+            const commit = Object.assign({}, blame.commits.get(sha), { lines: lines });
+            return {
+                author: Object.assign({}, blame.authors.get(commit.author), { lineCount: commit.lines.length }),
+                commit: commit,
+                lines: lines
+            };
+        });
+    }
+
+    getBlameLocations(fileName: string, range: Range) {
+        return this.getBlameForRange(fileName, range).then(blame => {
+            const commitCount = blame.commits.size;
+
+            const locations: Array<Location> = [];
+            Array.from(blame.commits.values())
+                .forEach((c, i) => {
+                    const uri = this.toBlameUri(c, i + 1, commitCount, range);
+                    c.lines.forEach(l => locations.push(new Location(c.originalFileName
+                            ? this.toBlameUri(c, i + 1, commitCount, range, c.originalFileName)
+                            : uri,
+                        new Position(l.originalLine, 0))));
+                });
+
+            return locations;
+        });
+    }
+
+    // getHistoryLocations(fileName: string, range: Range) {
+    //     return this.getBlameForRange(fileName, range).then(blame => {
+    //         const commitCount = blame.commits.size;
+
+    //         const locations: Array<Location> = [];
+    //         Array.from(blame.commits.values())
+    //             .forEach((c, i) => {
+    //                 const uri = this.toBlameUri(c, i + 1, commitCount, range);
+    //                 c.lines.forEach(l => locations.push(new Location(c.originalFileName
+    //                         ? this.toBlameUri(c, i + 1, commitCount, range, c.originalFileName)
+    //                         : uri,
+    //                     new Position(l.originalLine, 0))));
+    //             });
+
+    //         return locations;
+    //     });
+    // }
+
+    // getCommitMessage(sha: string) {
+    //     return Git.getCommitMessage(sha, this.repoPath);
+    // }
+
+    // getCommitMessages(fileName: string) {
+    //     return Git.getCommitMessages(fileName, this.repoPath).then(data => {
+    //         const commits: Map<string, string> = new Map();
+    //         let m: Array<string>;
+    //         while ((m = commitMessageMatcher.exec(data)) != null) {
+    //             commits.set(m[1], m[2]);
+    //         }
+
+    //         return commits;
+    //     });
+    // }
+
+    getVersionedFile(fileName: string, sha: string) {
+        return Git.getVersionedFile(fileName, this.repoPath, sha);
+    }
+
+    getVersionedFileText(fileName: string, sha: string) {
+        return Git.getVersionedFileText(fileName, this.repoPath, sha);
+    }
+
+    fromBlameUri(uri: Uri): IGitBlameUriData {
+        if (uri.scheme !== DocumentSchemes.GitBlame) throw new Error(`fromGitUri(uri=${uri}) invalid scheme`);
+        const data = this._fromGitUri<IGitBlameUriData>(uri);
+        data.range = new Range(data.range[0].line, data.range[0].character, data.range[1].line, data.range[1].character);
+        return data;
+    }
+
+    fromGitUri(uri: Uri) {
+        if (uri.scheme !== DocumentSchemes.Git) throw new Error(`fromGitUri(uri=${uri}) invalid scheme`);
+        return this._fromGitUri<IGitUriData>(uri);
+    }
+
+    private _fromGitUri<T extends IGitUriData>(uri: Uri): T {
+        return JSON.parse(uri.query) as T;
+    }
+
+    toBlameUri(commit: IGitCommit, index: number, commitCount: number, range: Range, originalFileName?: string) {
+        return this._toGitUri(DocumentSchemes.GitBlame, commit, commitCount, this._toGitBlameUriData(commit, index, range, originalFileName));
+    }
+
+    toGitUri(commit: IGitCommit, index: number, commitCount: number, originalFileName?: string) {
+        return this._toGitUri(DocumentSchemes.Git, commit, commitCount, this._toGitUriData(commit, index, originalFileName));
+    }
+
+    private _toGitUri(scheme: DocumentSchemes, commit: IGitCommit, commitCount: number, data: IGitUriData | IGitBlameUriData) {
+        const pad = n => ("0000000" + n).slice(-("" + commitCount).length);
+        const ext = extname(data.fileName);
+        const path = `${dirname(data.fileName)}/${commit.sha}: ${basename(data.fileName, ext)}${ext}`;
+
+        // NOTE: Need to specify an index here, since I can't control the sort order -- just alphabetic or by file location
+        return Uri.parse(`${scheme}:${pad(data.index)}. ${commit.author}, ${moment(commit.date).format('MMM D, YYYY hh:MM a')} - ${path}?${JSON.stringify(data)}`);
+    }
+
+    private _toGitUriData<T extends IGitUriData>(commit: IGitCommit, index: number, originalFileName?: string): T {
+        const fileName = originalFileName || commit.fileName;
+        const data = { fileName: commit.fileName, sha: commit.sha, index: index } as T;
+        if (originalFileName) {
+            data.originalFileName = originalFileName;
+        }
+        return data;
+    }
+
+    private _toGitBlameUriData(commit: IGitCommit, index: number, range: Range, originalFileName?: string) {
+        const data = this._toGitUriData<IGitBlameUriData>(commit, index, originalFileName);
+        data.range = range;
+        return data;
+    }
+}
+
+export interface IGitBlame {
+    authors: Map<string, IGitAuthor>;
+    commits: Map<string, IGitCommit>;
+    lines: IGitCommitLine[];
+}
+
+export interface IGitBlameLine {
+    author: IGitAuthor;
+    commit: IGitCommit;
+    line: IGitCommitLine;
+}
+
+export interface IGitBlameLines extends IGitBlame {
+    allLines: IGitCommitLine[];
+}
+
+export interface IGitBlameCommitLines {
+    author: IGitAuthor;
+    commit: IGitCommit;
+    lines: IGitCommitLine[];
+}
+
+export interface IGitAuthor {
+    name: string;
+    lineCount: number;
+}
+
+export interface IGitCommit {
+    sha: string;
+    fileName: string;
+    author: string;
+    date: Date;
+    message: string;
+    lines: IGitCommitLine[];
+    originalFileName?: string;
+    previousSha?: string;
+    previousFileName?: string;
+}
+
+export interface IGitCommitLine {
+    sha: string;
+    line: number;
+    originalLine: number;
+    code?: string;
+}
+
+export interface IGitUriData {
+    fileName: string,
+    originalFileName?: string;
+    sha: string,
+    index: number
+}
+
+export interface IGitBlameUriData extends IGitUriData {
+    range: Range
+}

typings.json

@@ -1,5 +1,8 @@
 {
   "globalDependencies": {
     "tmp": "registry:dt/tmp#0.0.0+20160514170650"
+  },
+  "dependencies": {
+    "lodash": "registry:npm/lodash#4.0.0+20160723033700"
   }
 }

typings/index.d.ts

@@ -1 +1,2 @@
 /// <reference path="globals/tmp/index.d.ts" />
+/// <reference path="modules/lodash/index.d.ts" />

typings/modules/lodash/typings.json

@@ -0,0 +1,11 @@
+{
+  "resolution": "main",
+  "tree": {
+    "src": "https://raw.githubusercontent.com/types/npm-lodash/9b83559bbd3454f0cd9e4020c920e36eee80d5a3/typings.json",
+    "raw": "registry:npm/lodash#4.0.0+20160723033700",
+    "main": "index.d.ts",
+    "version": "4.0.0",
+    "name": "lodash",
+    "type": "typings"
+  }
+}