1 files changed, 13 insertions, 0 deletions
diff --git a/lib/tooling/base-tool.js b/lib/tooling/base-tool.js
index 96d21fe70..b31bc2787 100755
--- a/lib/tooling/base-tool.js
+++ b/lib/tooling/base-tool.js
@@ -24,12 +24,19 @@
 
 import path from 'path';
 
+import PromClient from 'prom-client';
 import _ from 'underscore';
 
 import * as exec from '../exec';
 import {logger} from '../logger';
 import * as utils from '../utils';
 
+const toolCounter = new PromClient.Counter({
+    name: 'tool_invocations_total',
+    help: 'Number of tool invocations',
+    labelNames: ['language', 'name'],
+});
+
 export class BaseTool {
     constructor(toolInfo, env) {
         this.tool = toolInfo;
@@ -121,6 +128,12 @@ export class BaseTool {
     }
 
     async runTool(compilationInfo, inputFilepath, args, stdin /*, supportedLibraries*/) {
+        if (this.tool.name) {
+            toolCounter.inc({
+                language: compilationInfo.compiler.lang,
+                name: this.tool.name,
+            });
+        }
         let execOptions = this.getDefaultExecOptions();
         if (inputFilepath) execOptions.customCwd = path.dirname(inputFilepath);
         execOptions.input = stdin;