Show the output of msgfmt --statistics in the status bar

README.md

@@ -8,6 +8,7 @@ Source tmLanguage file: https://github.com/textmate/gettext.tmbundle/blob/master
 
 ## Features
 
+* Show the number of total messages, untranslated messages, and fuzzy messages in the status bar via `msgfmt --statistics`.
 * `vscgettext.moveToNextUntranslated`: Move focus to next untranslated message (`alt+n`)
 * `vscgettext.moveToPreviousUntranslated`: Move focus to previous untranslated message (`alt+shift+n`)
 * `vscgettext.moveToNextFuzzy`: Move focus to next fuzzy message (`alt+f`)

src/status.ts

@@ -0,0 +1,61 @@
+import * as vscode from "vscode";
+import { exec } from "child_process";
+
+let statusBarItem: vscode.StatusBarItem;
+
+export async function activateStatusBar({
+  subscriptions,
+}: vscode.ExtensionContext): Promise<void> {
+  statusBarItem = vscode.window.createStatusBarItem(
+    vscode.StatusBarAlignment.Left,
+    0
+  );
+
+  statusBarItem.show();
+  subscriptions.push(statusBarItem);
+
+  subscriptions.push(
+    vscode.window.onDidChangeActiveTextEditor(updateStsatusBarItem)
+  );
+
+  updateStsatusBarItem();
+}
+
+async function updateStsatusBarItem(): Promise<void> {
+  const output = await runMsgfmtStatistics();
+
+  try {
+    if (output) {
+      statusBarItem.text = output;
+
+      statusBarItem.show();
+    } else {
+      statusBarItem.hide();
+    }
+  } catch (error) {
+    console.error(error);
+
+    statusBarItem.hide();
+  }
+}
+
+async function runMsgfmtStatistics(): Promise<string | null> {
+  const path = vscode.window.activeTextEditor?.document.uri.fsPath;
+
+  if (!path) {
+    return null;
+  }
+
+  const command = `msgfmt --statistics -o /dev/null ${path}`;
+
+  return new Promise((resolve, reject) => {
+    exec(command, (error, stdout, stderr) => {
+      if (error) {
+        reject(new Error(`Failed to run msgfmt: ${error.message}`));
+      } else {
+        // Correct. The command will print the statistics to stderr.
+        resolve(stderr);
+      }
+    });
+  });
+}

src/vscgettext.ts

@@ -12,8 +12,9 @@ import {
   moveToPreviousUntranslatedOrFuzzyMessage,
 } from "./lib";
 import provideDefinition from "./provide_definition";
+import { activateStatusBar } from "./status";
 
-export function activate(context: vscode.ExtensionContext) {
+export async function activate(context: vscode.ExtensionContext) {
   context.subscriptions.push(
     vscode.commands.registerTextEditorCommand(
       "vscgettext.moveToNextUntranslated",
@@ -53,6 +54,8 @@ export function activate(context: vscode.ExtensionContext) {
   context.subscriptions.push(
     vscode.languages.registerDefinitionProvider("po", { provideDefinition })
   );
+
+  activateStatusBar(context);
 }
 
 export function deactivate() {