pep8analysis: report fatal crash of the tool

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/contrib/pep8analysis/www/index.html b/contrib/pep8analysis/www/index.html
index 73608ef..047ad27 100644 (file)
--- a/contrib/pep8analysis/www/index.html
+++ b/contrib/pep8analysis/www/index.html
@@ -47,7 +47,14 @@
 
                        // Invoke the full Nit program
                        Module = Pep8Module
-                       ret = Module['callMain']([input])
+                       try {
+                               ret = Module['callMain']([input])
+                       } catch(e) {
+                               console.debug("Tool invocation failed, with:\n" + $("#console").text() + "\n" + e )
+                               ga('trackEvent', 'Crash', 'Analysis', $("#console").text())
+                               $("#fatal-error").show()
+                               $("#analyze").prop('disabled', true)
+                       }
 
                        // Show and set color of output console
                        $("#consolePanel").removeClass("panel-success panel-warning panel-danger")
@@ -112,6 +119,10 @@
 
 <div class="container-fluid">
        <div class="alert alert-warning" id="loading">Loading the tool... This may take some time.</div>
+       <div class="alert alert-danger" id="fatal-error" style="display: none;">
+               <h2>The JavaScript tool crashed</h2>
+               <p>Please refresh the page to try again, or use Firefox. An error report has been sent to the developer</p>
+       </div>
 
        <div class="row">
          <div class="col-sm-12 col-lg-6">