Feature: Load and apply a custom coverprofile

package.json

@@ -302,6 +302,11 @@
         "title": "Go: Cancel Running Tests",
         "description": "Cancels running tests."
       },
+      {
+        "command": "go.apply.coverprofile",
+        "title": "Go: Apply Cover Profile",
+        "description": "Applies existing cover profile."
+      },
       {
         "command": "go.godoctor.extract",
         "title": "Go: Extract to function",

src/goMain.ts

@@ -6,11 +6,12 @@
 'use strict';
 
 import vscode = require('vscode');
+import * as path from 'path';
 import { browsePackages } from './goBrowsePackage';
 import { buildCode } from './goBuild';
 import { check, notifyIfGeneratedFile, removeTestStatus } from './goCheck';
 import { GoCodeActionProvider } from './goCodeAction';
-import { applyCodeCoverage, initCoverageDecorators, removeCodeCoverageOnFileChange, toggleCoverageCurrentPackage, updateCodeCoverageDecorators } from './goCover';
+import { applyCodeCoverage, applyCodeCoverageToAllEditors, initCoverageDecorators, removeCodeCoverageOnFileChange, toggleCoverageCurrentPackage, updateCodeCoverageDecorators } from './goCover';
 import { GoDebugConfigurationProvider } from './goDebugConfiguration';
 import { extractFunction, extractVariable } from './goDoctor';
 import { runFillStruct } from './goFillStruct';
@@ -32,9 +33,9 @@ import { GoRunTestCodeLensProvider } from './goRunTestCodelens';
 import { showHideStatus } from './goStatus';
 import { testAtCursor, testCurrentFile, testCurrentPackage, testPrevious, testWorkspace } from './goTest';
 import { vetCode } from './goVet';
-import { setGlobalState, getFromGlobalState, updateGlobalState } from './stateUtils';
+import { getFromGlobalState, setGlobalState, updateGlobalState } from './stateUtils';
 import { cancelRunningTests, showTestOutput } from './testUtils';
-import { cleanupTempDir, disposeTelemetryReporter, getBinPath, getGoConfig, getCurrentGoPath, getExtensionCommands, getGoVersion, getToolsEnvVars, getToolsGopath, getWorkspaceFolderPath, handleDiagnosticErrors, isGoPathSet, sendTelemetryEvent } from './util';
+import { cleanupTempDir, disposeTelemetryReporter, getBinPath, getCurrentGoPath, getExtensionCommands, getGoConfig, getGoVersion, getToolsEnvVars, getToolsGopath, getWorkspaceFolderPath, handleDiagnosticErrors, isGoPathSet, sendTelemetryEvent } from './util';
 
 export let buildDiagnosticCollection: vscode.DiagnosticCollection;
 export let lintDiagnosticCollection: vscode.DiagnosticCollection;
@@ -357,6 +358,21 @@ export function activate(ctx: vscode.ExtensionContext): void {
 
 	ctx.subscriptions.push(vscode.commands.registerCommand('go.install.package', installCurrentPackage));
 
+	ctx.subscriptions.push(vscode.commands.registerCommand('go.apply.coverprofile', () => {
+		if (!vscode.window.activeTextEditor || vscode.window.activeTextEditor.document.fileName.endsWith('.go')) {
+			vscode.window.showErrorMessage('Cannot apply coverage profile when no Go file is open.');
+			return;
+		}
+		vscode.window.showInputBox({
+			prompt: 'Enter the path to the coverage profile'
+		}).then(coverProfilePath => {
+			if (!coverProfilePath) {
+				return;
+			}
+			applyCodeCoverageToAllEditors(coverProfilePath, path.dirname(vscode.window.activeTextEditor.document.fileName));
+		});
+	}));
+
 	vscode.languages.setLanguageConfiguration(GO_MODE.language, {
 		wordPattern: /(-?\d*\.\d\w*)|([^\`\~\!\@\#\%\^\&\*\(\)\-\=\+\[\{\]\}\\\|\;\:\'\"\,\.\<\>\/\?\s]+)/g,
 	});