Use the word under the cursor as default for git grep search

.vscode/launch.json

@@ -1,28 +1,17 @@
 // A launch configuration that compiles the extension and then opens it inside a new window
 {
-    "version": "0.1.0",
     "configurations": [
         {
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}"
+            ],
             "name": "Launch Extension",
-            "type": "extensionHost",
+            "outFiles": [
+                "${workspaceFolder}/out/**/*.js"
+            ],
+            "preLaunchTask": "npm",
             "request": "launch",
-            "runtimeExecutable": "${execPath}",
-            "args": ["--extensionDevelopmentPath=${workspaceRoot}" ],
-            "stopOnEntry": false,
-            "sourceMaps": true,
-            "outFiles": [ "${workspaceRoot}/out/src/**/*.js" ],
-            "preLaunchTask": "npm"
-        },
-        {
-            "name": "Launch Tests",
-            "type": "extensionHost",
-            "request": "launch",
-            "runtimeExecutable": "${execPath}",
-            "args": ["--extensionDevelopmentPath=${workspaceRoot}", "--extensionTestsPath=${workspaceRoot}/out/test" ],
-            "stopOnEntry": false,
-            "sourceMaps": true,
-            "outFiles": [ "${workspaceRoot}/out/test/**/*.js" ],
-            "preLaunchTask": "npm"
+            "type": "pwa-extensionHost"
         }
     ]
 }

.vscode/tasks.json

@@ -8,22 +8,16 @@
 
 // A task runner that calls a custom npm script that compiles the extension.
 {
-    "version": "0.1.0",
+    "version": "2.0.0",
 
     // 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,
+    "isBackground": true,
 
     // use the standard tsc in watch mode problem matcher to find compile problems in the output.
     "problemMatcher": "$tsc-watch"

package.json

@@ -40,11 +40,11 @@
     "test": "node ./node_modules/vscode/bin/test"
   },
   "devDependencies": {
-    "typescript": "^2.3.0",
-    "vscode": "^1.0.0",
-    "mocha": "^2.3.3",
+    "@types/mocha": "^2.2.32",
     "@types/node": "^6.0.40",
-    "@types/mocha": "^2.2.32"
+    "mocha": "^2.3.3",
+    "typescript": "^2.3.0",
+    "vscode": "^1.0.0"
   },
   "dependencies": {
     "shell-escape": "^0.2.0",

src/extension.ts

@@ -13,7 +13,20 @@ const projectRoot = workspace.rootPath ? workspace.rootPath : '.';
 export function activate(context: ExtensionContext) {
     (async () => {
         const disposable = commands.registerCommand('extension.gitGrep', async () => {
-            const query = await window.showInputBox({ prompt: 'Please input search word.' })
+            // Get the current editor
+            let wordText = ''
+            let editor = window.activeTextEditor;
+            if (editor) {
+                // Get word under cursor position
+                let wordRange = editor.document.getWordRangeAtPosition(editor.selection.start);
+                if (!wordRange) {
+                    wordText = '';
+                }
+                // Get word text
+                wordText = editor.document.getText(wordRange);
+            }
+
+            const query = await window.showInputBox({ prompt: 'Please input search word.', value: wordText })
             const command = quote(['git', 'grep', '-H', '-n', '-e', query]);
             const fetchItems = (): Promise<QuickPickItemWithPath[]> => new Promise((resolve, reject) => {
                 exec(command, { cwd: projectRoot, maxBuffer: 2000 * 1024 }, (err, stdout, stderr) => {