nitcatalog: add option in inject piwik tracker

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/nitcatalog.nit b/src/nitcatalog.nit
index a42bd64..f629b4f 100644 (file)
--- a/src/nitcatalog.nit
+++ b/src/nitcatalog.nit
@@ -134,6 +134,37 @@ class CatalogPage
 """
        end
 
+       # Inject piwik HTML code if required
+       private fun add_piwik
+       do
+               var tracker_url = catalog.piwik_tracker
+               if tracker_url == null then return
+
+               var site_id = catalog.piwik_site_id
+
+               tracker_url = tracker_url.trim
+               if tracker_url.chars.last != '/' then tracker_url += "/"
+               add """
+<!-- Piwik -->
+<script type="text/javascript">
+var _paq = _paq || [];
+_paq.push(['trackPageView']);
+_paq.push(['enableLinkTracking']);
+(function() {
+var u=(("https:" == document.location.protocol) ? "https" : "http") + "://{{{tracker_url.escape_to_c}}}";
+_paq.push(['setTrackerUrl', u+'piwik.php']);
+_paq.push(['setSiteId', {{{site_id}}}]);
+var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.type='text/javascript';
+g.defer=true; g.async=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
+})();
+
+</script>
+<noscript><p><img src="http://{{{tracker_url.html_escape}}}piwik.php?idsite={{{site_id}}}" style="border:0;" alt="" /></p></noscript>
+<!-- End Piwik Code -->
+"""
+
+       end
+
        redef fun rendering
        do
                add """
@@ -141,6 +172,10 @@ class CatalogPage
 <script src='https://code.jquery.com/jquery-latest.min.js'></script>
 <script src='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js'></script>
 <script src='https://cdnjs.cloudflare.com/ajax/libs/bootstrap-table/1.8.1/bootstrap-table-all.min.js'></script>
+"""
+               add_piwik
+               add """
+
 </body>
 </html>
 """
@@ -661,6 +696,13 @@ class Catalog
                res.add "</table>\n"
                return res
        end
+
+       # Piwik tracker URL, if any
+       var piwik_tracker: nullable String = null
+
+       # Piwik site ID
+       # Used when `piwik_tracker` is set
+       var piwik_site_id: Int = 1
 end
 
 # Execute a git command and return the result
@@ -682,7 +724,13 @@ var opt_no_git = new OptionBool("Do not gather git information from the working
 var opt_no_parse = new OptionBool("Do not parse nit files (no importation information)", "--no-parse")
 var opt_no_model = new OptionBool("Do not analyse nit files (no class/method information)", "--no-model")
 
-tc.option_context.add_option(opt_dir, opt_no_git, opt_no_parse, opt_no_model)
+# Piwik tracker URL.
+# If you want to monitor your visitors.
+var opt_piwik_tracker = new OptionString("Piwik tracker URL (ex: `nitlanguage.org/piwik/`)", "--piwik-tracker")
+# Piwik tracker site id.
+var opt_piwik_site_id = new OptionString("Piwik site ID", "--piwik-site-id")
+
+tc.option_context.add_option(opt_dir, opt_no_git, opt_no_parse, opt_no_model, opt_piwik_tracker, opt_piwik_site_id)
 
 tc.process_options(sys.args)
 tc.keep_going = true
@@ -690,6 +738,19 @@ tc.keep_going = true
 var modelbuilder = new ModelBuilder(model, tc)
 var catalog = new Catalog(modelbuilder)
 
+catalog.piwik_tracker = opt_piwik_tracker.value
+var piwik_site_id = opt_piwik_site_id.value
+if piwik_site_id != null then
+       if catalog.piwik_tracker == null then
+               print_error "Warning: ignored `{opt_piwik_site_id}` because `{opt_piwik_tracker}` is not set."
+       else if piwik_site_id.is_int then
+               print_error "Warning: ignored `{opt_piwik_site_id}`, an integer is required."
+       else
+               catalog.piwik_site_id = piwik_site_id.to_i
+       end
+end
+
+
 # Get files or groups
 var args = tc.option_context.rest
 if opt_no_parse.value then