From 834668b03365c9f9d2254441cd5240f94d57aff5 Mon Sep 17 00:00:00 2001
From: Brian Gough <bjg@network-theory.co.uk>
Date: Mon, 9 May 2016 15:36:11 +0100
Subject: [PATCH] add a metric for the TeXLive image used on each compile

---
 app/coffee/CompileManager.coffee | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/coffee/CompileManager.coffee b/app/coffee/CompileManager.coffee
index 6f71c32..ca84303 100644
--- a/app/coffee/CompileManager.coffee
+++ b/app/coffee/CompileManager.coffee
@@ -32,7 +32,11 @@ module.exports = CompileManager =
 			injectDraftModeIfRequired (error) ->
 				return callback(error) if error?
 				timer = new Metrics.Timer("run-compile")
+				# find the image tag to log it as a metric
+				tag = request.imageName?.match(/:(.*)/)?[1] or "default"
+				tag = "other" if project_id?.match(/^[0-9a-f]{24}$/) # exclude smoke test
 				Metrics.inc("compiles")
+				Metrics.inc("compiles-with-image.#{tag}")
 				LatexRunner.runLatex request.project_id, {
 					directory: compileDir
 					mainFile:  request.rootResourcePath