Initial commit -- very basic blame support

Author: Eric Amodio

.gitignore

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+out
+node_modules

.vscode/launch.json

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+// A launch configuration that compiles the extension and then opens it inside a new window
+{
+    "version": "0.1.0",
+    "configurations": [
+        {
+            "name": "Launch Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "runtimeExecutable": "${execPath}",
+            "args": ["--extensionDevelopmentPath=${workspaceRoot}" ],
+            "stopOnEntry": false,
+            "sourceMaps": true,
+            "outDir": "${workspaceRoot}/out/src",
+            "preLaunchTask": "npm"
+        },
+        {
+            "name": "Launch Tests",
+            "type": "extensionHost",
+            "request": "launch",
+            "runtimeExecutable": "${execPath}",
+            "args": ["--extensionDevelopmentPath=${workspaceRoot}", "--extensionTestsPath=${workspaceRoot}/out/test" ],
+            "stopOnEntry": false,
+            "sourceMaps": true,
+            "outDir": "${workspaceRoot}/out/test",
+            "preLaunchTask": "npm"
+        }
+    ]
+}

.vscode/settings.json

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+// Place your settings in this file to overwrite default and user settings.
+{
+    "files.exclude": {
+        "out": false, // set this to true to hide the "out" folder with the compiled JS files
+        "node_modules": false
+    },
+    "search.exclude": {
+        "out": true, // set this to false to include "out" folder in search results
+        "node_modules": true
+    },
+    "typescript.tsdk": "./node_modules/typescript/lib" // we want to use the TS server from our node_modules folder to control its version
+}

.vscode/tasks.json

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+// Available variables which can be used inside of strings.
+// ${workspaceRoot}: the root folder of the team
+// ${file}: the current opened file
+// ${fileBasename}: the current opened file's basename
+// ${fileDirname}: the current opened file's dirname
+// ${fileExtname}: the current opened file's extension
+// ${cwd}: the current working directory of the spawned process
+
+// A task runner that calls a custom npm script that compiles the extension.
+{
+    "version": "0.1.0",
+
+    // we want to run npm
+    "command": "npm",
+
+    // the command is a shell script
+    "isShellCommand": true,
+
+    // show the output window only if unrecognized errors occur.
+    "showOutput": "silent",
+
+    // we run the custom script "compile" as defined in package.json
+    "args": ["run", "compile", "--loglevel", "silent"],
+
+    // The tsc compiler is started in watching mode
+    "isWatching": true,
+
+    // use the standard tsc in watch mode problem matcher to find compile problems in the output.
+    "problemMatcher": "$tsc-watch"
+}

.vscodeignore

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+.vscode/**
+typings/**
+out/test/**
+test/**
+src/**
+**/*.map
+.gitignore
+tsconfig.json
+vsc-extension-quickstart.md

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2016 Eric Amodio
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

README.md

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+# git-codelens README
+
+This is the README for your extension "git-codelens". After writing up a brief description, we recommend including the following sections.
+
+## Features
+
+Describe specific features of your extension including screenshots of your extension in action. Image paths are relative to this README file.
+
+For example if there is an image subfolder under your extension project workspace:
+
+\!\[feature X\]\(images/feature-x.png\)
+
+> Tip: Many popular extensions utilize animations. This is an excellent way to show off your extension! We recommend short, focused animations that are easy to follow.
+
+## Requirements
+
+If you have any requirements or dependencies, add a section describing those and how to install and configure them.
+
+## Extension Settings
+
+Include if your extension adds any VS Code settings through the `contributes.configuration` extension point.
+
+For example:
+
+This extension contributes the following settings:
+
+* `myExtension.enable`: enable/disable this extension
+* `myExtension.thing`: set to `blah` to do something
+
+## Known Issues
+
+Calling out known issues can help limit users opening duplicate issues against your extension.
+
+## Release Notes
+
+Users appreciate release notes as you update your extension.
+
+### 1.0.0
+
+Initial release of ...
+
+### 1.0.1
+
+Fixed issue #.
+
+### 1.1.0
+
+Added features X, Y, and Z.
+
+-----------------------------------------------------------------------------------------------------------
+
+## Working with Markdown
+
+**Note:** You can author your README using Visual Studio Code.  Here are some useful editor keyboard shortcuts:
+
+* Split the editor (`Cmd+\` on OSX or `Ctrl+\` on Windows and Linux)
+* Toggle preview (`Shift+CMD+V` on OSX or `Shift+Ctrl+V` on Windows and Linux)
+* Press `Ctrl+Space` (Windows, Linux) or `Cmd+Space` (OSX) to see a list of Markdown snippets
+
+### For more information
+
+* [Visual Studio Code's Markdown Support](http://code.visualstudio.com/docs/languages/markdown)
+* [Markdown Syntax Reference](https://help.github.com/articles/markdown-basics/)
+
+**Enjoy!**

package.json

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+{
+    "name": "git-codelens",
+    "displayName": "Git CodeLens",
+    "description": "Provides Git blame information in CodeLens",
+    "version": "0.0.1",
+    "author": "Eric Amodio",
+    "publisher": "eamodio",
+    "engines": {
+        "vscode": "^1.3.0"
+    },
+    "categories": [
+        "Other"
+    ],
+    "activationEvents": [
+        "*"
+    ],
+    "keywords": [
+        "git", "gitblame", "blame"
+    ],
+    "main": "./out/src/extension",
+    "contributes": {
+    },
+    "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"
+    },
+    "dependencies": {
+    },
+    "devDependencies": {
+        "typescript": "^1.8.10",
+        "vscode": "^0.11.15"
+    }
+}

src/codeLensProvider.ts

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+'use strict';
+import {CancellationToken, CodeLens, CodeLensProvider, commands, Range, SymbolInformation, SymbolKind, TextDocument, Uri} from 'vscode';
+import {IBlameLine, gitBlame} from './git';
+import * as moment from 'moment';
+
+export class GitCodeLens extends CodeLens {
+    constructor(public blame: Promise<IBlameLine[]>, public fileName: string, public blameRange: Range, range: Range) {
+        super(range);
+
+        this.blame = blame;
+        this.fileName = fileName;
+        this.blameRange = blameRange;
+    }
+}
+
+export default class GitCodeLensProvider implements CodeLensProvider {
+    constructor(public repoPath: string) { }
+
+    provideCodeLenses(document: TextDocument, token: CancellationToken): CodeLens[] | Thenable<CodeLens[]> {
+        // TODO: Should I wait here?
+        let blame = gitBlame(document.fileName);
+
+        return (commands.executeCommand('vscode.executeDocumentSymbolProvider', document.uri) as Promise<SymbolInformation[]>).then(symbols => {
+            let lenses: CodeLens[] = [];
+            symbols.forEach(sym => this._provideCodeLens(document, sym, blame, lenses));
+            return lenses;
+        });
+    }
+
+    private _provideCodeLens(document: TextDocument, symbol: SymbolInformation, blame: Promise<IBlameLine[]>, lenses: CodeLens[]): void {
+        switch (symbol.kind) {
+            case SymbolKind.Module:
+            case SymbolKind.Class:
+            case SymbolKind.Interface:
+            case SymbolKind.Method:
+            case SymbolKind.Function:
+            case SymbolKind.Constructor:
+            case SymbolKind.Field:
+            case SymbolKind.Property:
+                break;
+            default:
+                return;
+        }
+
+        var line = document.lineAt(symbol.location.range.start);
+        // if (line.text.includes(symbol.name)) {
+        // }
+
+        let lens = new GitCodeLens(blame, document.fileName, symbol.location.range, line.range);
+        lenses.push(lens);
+    }
+
+    resolveCodeLens(codeLens: CodeLens, token: CancellationToken): Thenable<CodeLens> {
+        if (codeLens instanceof GitCodeLens) {
+            return codeLens.blame.then(allLines => {
+                let lines = allLines.slice(codeLens.blameRange.start.line, codeLens.blameRange.end.line + 1);
+                let line = lines[0];
+                if (lines.length > 1) {
+                    let sorted = lines.sort((a, b) => b.date.getTime() - a.date.getTime());
+                    line = sorted[0];
+                }
+
+                codeLens.command = {
+                    title: `${line.author}, ${moment(line.date).fromNow()}`,
+                    command: 'git.viewFileHistory',
+                    arguments: [Uri.file(codeLens.fileName)]
+                };
+                return codeLens;
+            });//.catch(ex => Promise.reject(ex)); // TODO: Figure out a better way to stop the codelens from appearing
+        }
+    }
+}

src/extension.ts

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+'use strict';
+import {DocumentSelector, ExtensionContext, languages, workspace} from 'vscode';
+import GitCodeLensProvider from './codeLensProvider';
+import {gitRepoPath} from './git'
+
+// 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) {
+        return;
+    }
+
+    gitRepoPath(workspace.rootPath).then(repoPath => {
+        let selector: DocumentSelector = { scheme: 'file' };
+        context.subscriptions.push(languages.registerCodeLensProvider(selector, new GitCodeLensProvider(repoPath)));
+    }).catch(reason => console.warn(reason));
+}
+
+// this method is called when your extension is deactivated
+export function deactivate() {
+}